This commit was generated by cvs2svn to compensate for changes in r24139,
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e04f67831f
26
contrib/top/ADVERTISEMENT
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26
contrib/top/ADVERTISEMENT
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@ -0,0 +1,26 @@
|
||||
William LeFebvre
|
||||
Group sys Consulting
|
||||
wnl@groupsys.com
|
||||
+1-770-813-3224
|
||||
|
||||
|
||||
William LeFebvre is available for consulting and teaching engagements
|
||||
through the company Group sys Consulting. William's specialties are:
|
||||
|
||||
Unix system administration issues
|
||||
Local area network design
|
||||
Design of safe connections to the Internet
|
||||
Domain Name Service
|
||||
Unix and Internet security
|
||||
INN news server configuration
|
||||
SunOS to Solaris migration
|
||||
Troubleshooting
|
||||
|
||||
|
||||
Although located in the Atlanta metropolitan area, William can easily
|
||||
travel to any location in the United States and Canada. Trips to
|
||||
other countries can be arranged as well.
|
||||
|
||||
If you are interested in having William work for your organization,
|
||||
contact him at +1-770-813-3224 or via the address "wnl@groupsys.com".
|
||||
|
||||
503
contrib/top/Changes
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503
contrib/top/Changes
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|
||||
Thu Aug 29 1996 - wnl (3.4)
|
||||
Replaced modules (from Tim Pugh): next 32, next40.
|
||||
Fixed bug in username.c: hashing negative uids.
|
||||
|
||||
Thu Aug 22 1996 - wnl (3.4beta3)
|
||||
Patched modules: ultrix4, sunos4, sunos5, utek, decosf1, irix5.
|
||||
Added modules: next40, next32.
|
||||
Fixed procstates update bug in display.c.
|
||||
Fixed divide by zero bug in utils.c.
|
||||
Fixed bad number in layout.h
|
||||
Minor fixes to Configure.
|
||||
Complete overhaul of FAQ.
|
||||
|
||||
Tue Feb 13 1996 - wnl (3.4beta3)
|
||||
Added convex module from Warren Vosper (originally written by
|
||||
William Jones).
|
||||
|
||||
Tue Feb 13 1996 - wnl (3.4beta2)
|
||||
Fixed format_k in utils.c to calculate K and M values correctly.
|
||||
Added check for gigabyte values ('G'). Changed sumamry_format
|
||||
in display.c to use format_k where appropriate.
|
||||
Changed creation of distribution tar file to place everything in
|
||||
a top level directory.
|
||||
|
||||
Tue Jan 30 1996 - wnl (3.4beta2)
|
||||
Added m_aix41 module. Added new tag type to module comments:
|
||||
TERMCAP, which defined the library to use for a termcap library.
|
||||
If no TERMCAP tag is found in the module's initial comment, then
|
||||
Configure will default to "-ltermcap". AIX needs this since it
|
||||
put all the termcap routines in libcurses(!)
|
||||
|
||||
Added m_bsdos2 (found lingering in my mailbox).
|
||||
Updated m_svr4 to include support for NCR multiprocessors.
|
||||
Fixed small bug in utils.c
|
||||
|
||||
Thu Jan 25 1996 - wnl (3.4beta1)
|
||||
Fixed m_sunos5 invocation of gettimeofday to include "NULL" as
|
||||
second argument. This provides compatability with the Posix-
|
||||
compliant template provided with SunOS 5.5, but doesn't hurt
|
||||
previous versions since they do bother with a template for that
|
||||
function.
|
||||
|
||||
Made changes (recommended by net users) to hpux10, ultrix4,
|
||||
netbsd10, aux3 (replaced aux31). Added module for linux.
|
||||
|
||||
Fri Oct 10 1995 - wnl (3.4beta1)
|
||||
Added user-contributed modules for SCO Unix, IRIX 5, HP/UX 10,
|
||||
Pyramid DC/OSX. Changed Configure so that it runs in environments
|
||||
whose c-shells have no 'eval'(!). Added support for multiple sort
|
||||
ordering methods via the -o switch. This option requires support
|
||||
from the machine dependent module: such support was added to
|
||||
sunos5 (thus sunos54) and sunos4.
|
||||
|
||||
display.c: Changed CPU states display line to shorten the leading
|
||||
tag if the data won't fit in the current width. Fixed a divide-by-
|
||||
zero bug that affected ultrasparc servers (and potentially other
|
||||
systems).
|
||||
|
||||
m_sunos5.c: Now asks the system for the correct pagesize rather than
|
||||
assuming it is 4K.
|
||||
|
||||
Thu Mar 2 1995 - wnl (3.3 RELEASE)
|
||||
Added module netbsd10 and renamed netbsd to netbsd08. Changed
|
||||
Configure so that it does not use an initial default module name.
|
||||
Made other compatability fixes to Configure. Added comments to
|
||||
decosf1 concerning optimizer bug. Other documentation changes.
|
||||
Added use of "prime.c" to Configure script.
|
||||
|
||||
Tue Feb 7 1995 - wnl (3.3beta6)
|
||||
Still one more beta....
|
||||
Fixes for sunos5 2.4 gcc core dump (it was an alignment problem).
|
||||
Fixed and improvements for decosf1 (including use of format_k
|
||||
for proper SIZE column formatting). Added modules freebsd20 and
|
||||
ncr3000.
|
||||
|
||||
Thu Feb 2 1995 - wnl (3.3beta5)
|
||||
One more beta....
|
||||
Fixed a few bugs in the sunos5 port pertaining to casting and
|
||||
very large memory counts. Added "ifndef HAVE_GETOPT" to getopt.c
|
||||
to provide for conditional compilation of the getopt function.
|
||||
Those systems that have getopt in libc can add -DHAVE_GETOPT to
|
||||
the CFLAGS line in the module to prevent the function from being
|
||||
compiled. Added sunos54 module to accomodate SunOS 5.4
|
||||
peculiarities. Added module for aux3.1.
|
||||
|
||||
Wed Jan 4 1995 - wnl (3.3beta4)
|
||||
This is really taking too long......sigh.
|
||||
Fixed SIGWINCH handling once and for all. It now remembers the
|
||||
number of processes you want displayed even thru window resizes.
|
||||
Fixed buffer conflict in utils.c (itoa and itoa7).
|
||||
Lots of small improvements to the various modules were made over
|
||||
the past month: too numberous to list here. SunOS 5 module made
|
||||
more secure thru use of seteuid calls (other SVR4 modules should
|
||||
be modified similarly). One final MP fix to sunos5, too. Module
|
||||
for decosf1 was modified to accomodate V3.0.
|
||||
|
||||
Mon Apr 18 1994 - wnl (3.3beta3)
|
||||
I think I finally got a sunos5 module that will work on MP
|
||||
machines. Fixed cpu states figure in osmp41a so that
|
||||
percentages never exceed 100%. Added shell script "install"
|
||||
since Unix vendors can't seem to make up their minds on what
|
||||
options they want to use for the one that comes with the OS.
|
||||
Added netbsd modules from Christos. Fixed lots of other little
|
||||
things over the past few months that I have long since forgotten.
|
||||
|
||||
Wed Dec 15 1993 - wnl (3.3beta2)
|
||||
Added module patches from various users: hpux9, sunos5.
|
||||
Fixed bug with batch mode (screen_width wasn't getting set).
|
||||
Changes to accomodate 64 bit machines.
|
||||
Fixed some bugs in command parsing ("renice 19 " did something
|
||||
unexpected).
|
||||
|
||||
Mon Aug 30 1993 - wnl (3.3beta)
|
||||
Added lots of little patches from various users.
|
||||
Added routines to utils.c for intelligent formatting of kilobytes
|
||||
and time. These are intended to be used in the modules when
|
||||
formatting a process line. Added code to "summary_format" in
|
||||
display.c to do intelligent formatting of memory quantities.
|
||||
Redid display.c to allow for varying line widths and dynamic
|
||||
reallocation of the screen buffer.
|
||||
Added a SIGWINCH handler to top.c!
|
||||
Added a constant, MAX_COLS, to top.h which defines the absolute
|
||||
widest line we will ever allow. Changed allocations of "char fmt"
|
||||
in all machine modules to use this constant rather than an abitrary
|
||||
number.
|
||||
|
||||
Fri Aug 13 1993 - wnl (3.3)
|
||||
Changed return value definition of time-related functions in top.c,
|
||||
display.c, and m_ultrix4.c to time_t (stuart@coral.cs.jcu.edu.au).
|
||||
Fixed bug in display.c: line_update when start != 0.
|
||||
|
||||
Wed Aug 4 1993 - wnl (3.2 release)
|
||||
Changes to Configure from Paul Vixie. Added modules for hpux9 and
|
||||
bsd386.
|
||||
|
||||
Tue Jul 13 1993 - wnl (3.1 release)
|
||||
More small changes and minor bug fixes. Brought bsd44 up to date
|
||||
and added a module for svr4.2. Changed shar packaging to use Rich
|
||||
Salz's cshar stuff.
|
||||
|
||||
Wed Jul 7 1993 - wnl (3.1BETA)
|
||||
More changes and bug fixes to Configure. Applied some other
|
||||
minor bug fixes and suggestions from the beta testers. Added
|
||||
the "metatop" shell script and the "installmeta" rule to the
|
||||
Makefile to make handling multiple machine models and OS versions
|
||||
easier. Added INSTALL and FAQ files.
|
||||
|
||||
Tue May 18 1993 - wnl (3.1BETA)
|
||||
Changed Configure to be compatible with most SVR4 environments
|
||||
(differing output from "ls -lg"). Also changed Configure,
|
||||
Makefile.X, etc., to look for module files in the subdirectory
|
||||
"machine" (thanks to Christos Zoulas).
|
||||
|
||||
Tue Apr 20 1993 - wnl (3.1BETA)
|
||||
Changed both occurences of "ls -1" in Configure to "ls". This
|
||||
SHOULD produce the same result, and has the advantage that it
|
||||
doesn't produce an error on a system 5 machine. Integrated other
|
||||
changes recommended in the first round of beta testing.
|
||||
|
||||
Wed Mar 10 1993 - wnl (3.1BETA)
|
||||
MAJOR CHANGE: I have added a required function to all machine
|
||||
dependent modules, called proc_owner. It takes a pid as an argument
|
||||
and returns the uid of the process's owner. Such capability is
|
||||
necessary for top to run securely as a set-uid program, something
|
||||
that is needed for SVR4 implementations to read /proc. I have
|
||||
retrofitted all modules except dgux with this function, but was
|
||||
not able to test most of them. Top should now run securely as
|
||||
a setuid program. Added 386bsd and sunos5 modules. Added sunos4mp
|
||||
module for MP Suns.
|
||||
|
||||
Sat Feb 20 1993 - wnl (3.1ALPHA)
|
||||
Modified top.c and commands.c to compile correctly on System V
|
||||
derived Unixes (especially SVR4), but in a way that doesn't rely
|
||||
on an oracle-like declaration (that is, I don't use "ifdef SYSV").
|
||||
Fixed some bugs in "Configure" and "getans". Added inspection of
|
||||
env variable "TOP" for options, and made -I default to showing
|
||||
idle processes. Added "u" command to change username restriction
|
||||
on the fly. Created shell script "suntop" for poor multi-version
|
||||
SunOS folks (like myself).
|
||||
|
||||
Wed Jun 3 1992 - wnl (3.0)
|
||||
"max_topn" wasn't being used everywhere it was supposed to be
|
||||
in top.c. Many cosmetic changes, including copyright notices in
|
||||
all the .c files. Version number is now handled by version.c and
|
||||
reflects the current patchlevel (which is initially set to 0).
|
||||
Changed Configure and Makefile to allow configurable variables for
|
||||
certain commands: shell, cc, awk, install. Updated README and
|
||||
Porting. Ready to release to the world!
|
||||
|
||||
Mon May 18 1992 - wnl (2.9BETA)
|
||||
Added modules provided by Christos Zoulas. Replaced screen.c
|
||||
with one modified by Christos and that will appropriately select
|
||||
and handle the sgtty, termio, or termios system. Integrated many
|
||||
other changes recommended by Christos. Fixed (I hope) the "-b"
|
||||
batch mode display bug. Had to change loadavg to load_avg to avoid
|
||||
a conflict with 4.4BSD.
|
||||
|
||||
Mon Apr 27 1992 - wnl (2.8BETA)
|
||||
Added modules provided by Daniel Trinkle. Added patchlevel.h,
|
||||
but the patch level is not yet reflected in the version number.
|
||||
Cleaned up m_sunos4.c a little.
|
||||
|
||||
Wed Apr 22 1992 - wnl (2.8BETA)
|
||||
Major internal reorganization. All of the system dependent stuff
|
||||
is now really and truly separated from everything else. The
|
||||
system dependent functions are contained in a separate .c file
|
||||
called a "module". The Configure script knows how to find and
|
||||
set up these modules, but the human installer still needs to tell
|
||||
Configure which module to use (no automagic determination of
|
||||
machine type---sorry). Added -U option to specify one user's
|
||||
processes, but there is no corresponding command...yet. Other
|
||||
changes and improvements too numerous to mention here. Currently
|
||||
there are only two modules: sunos4 and umax. But after this beta
|
||||
release is sent around, I expect more to be written. I just hope
|
||||
that the machine-dependent abstractions don't need to change in
|
||||
the process.
|
||||
|
||||
Thu Mar 26 1992 - wnl (2.7BETA)
|
||||
Beta release with minimal architecture support. Updated README
|
||||
and added a first cut at a Porting guide. Added ioctl TIOCGWINSZ
|
||||
code from top2.5+ (courtesy of David MacKenzie). I didn't even
|
||||
try porting the Ultrix support since I don't have access to an
|
||||
Ultrix machine.
|
||||
|
||||
Fri Oct 11 1991 - wnl (2.6)
|
||||
This version was not widely released. It contained many changes.
|
||||
Here are the major ones:
|
||||
|
||||
Put in Vixie's idle process hack.
|
||||
|
||||
Enhanced type field in new_message to handle delayed messages.
|
||||
|
||||
Changed u_process to automatically adjust for varying lines of
|
||||
output. Management of screenbuf should now be completely contained
|
||||
in display.c. Removed now extraneous code from CMD_number[12]
|
||||
portion of command switch in top.c. This was the stuff that dealt
|
||||
with zeroing out lines in screenbuf.
|
||||
|
||||
Finally made it all work correctly on a 386i. Problems I had to
|
||||
overcome: kvm_nlist doesn't return 0 on success as advertised (it
|
||||
returns 1 instead); the results of a kvm_nlist are different
|
||||
(n_type can be zero even for a symbol that exists).
|
||||
|
||||
Serious rearrangement for processor dependent stuff. All nlists
|
||||
are now in separate files with the suffix ".nlist". Most machine
|
||||
specific code is in "machine.c" surrounded by appropriate ifdefs---
|
||||
the goal is to eventually have all machine specific code in this
|
||||
file. Managed to find a way to detect SunOS 4.x at compile-time:
|
||||
this is contained in the include file "sun.h". Completely changed
|
||||
the memory display line for SunOS 4.x---it now displays a far
|
||||
more appropriate report.
|
||||
|
||||
Created the shell script "Configure" to aid in the configuration
|
||||
step.
|
||||
|
||||
Fixed a bug in init_termcap: it will now tolerate an environment
|
||||
which does not have TERM defined (thanks to Sam Horrocks for
|
||||
pointing this out).
|
||||
|
||||
Tue Aug 9 1988 - wnl (2.5)
|
||||
Added changes to make top work under version 4.0 of the Sun
|
||||
operating system. Changes were provided by Scott Alexander of the
|
||||
University of Pennsylvania. Thanks! Compile with "-Dsunos4" to
|
||||
get them. Virtual memory statistics are not readily accessible
|
||||
under 4.0, so they don't show up in the output.
|
||||
|
||||
Thu Jul 31 1987 - wnl (2.4)
|
||||
Fixed a problem with the 4.0 Pyramid code. The label "cp_time"
|
||||
doesn't exist in the 4.0 kernel anymore. I think the code Carl
|
||||
sent me wants "percpu" instead. That is what I am using and it
|
||||
appears to work. 375 code is still untested (at least by me).
|
||||
Also picked a great deal of lint out of the source. Lint now only
|
||||
complains about a very few nitpicky things (there are far too many
|
||||
calls to "printf" to put a "(void)" in front of!), at least under
|
||||
SunOS.
|
||||
|
||||
Tue Jul 28 1987 - wnl (2.4a)
|
||||
Added changes for a Symmetrics Computer Systems s/375 machine.
|
||||
Changes were provided by Paul Vixie. Thanks! According to Mr.
|
||||
Vixie: "These changes were not made at, by, or for SCS proper.
|
||||
SCS would probably be interested in them, but so far only the
|
||||
users' group has them. They were made in February, 1987, to
|
||||
version 2.1 of the program, by Paul Vixie
|
||||
(dual!ptsfa!vixie!paul@ucbvax.Berkeley.EDU)." His changes were
|
||||
integrated into version 2.3 to make version 2.4.
|
||||
|
||||
The SCS peculiarities are summarized in Changes.scs.
|
||||
|
||||
Tue Jun 9 1987 - wnl (2.3 for real)
|
||||
Changed the includes for the extra code Carl sent me to only
|
||||
compile on Version 4.0 Pyramid machines. This makes top still
|
||||
compilable on pre-4.0 Pyramids. Specifically, this code is only
|
||||
compiled when both "pyr" and "CPUFOUND" are defined.
|
||||
|
||||
Wed Jun 3 1987 - wnl (2.3 with Pyramid additions)
|
||||
It's been a month and I still haven't done anything about
|
||||
distributing this version. However, Carl Gutekunst from Pyramid
|
||||
has sent me some extra patches for some of the Pyramid code. I
|
||||
just added those and will make them part of 2.3. This fixes the
|
||||
following Pyramid problems: adds the inclusion of <sys/systm.h>,
|
||||
uses the correct size for getting the kernel value _ccpu (this bug
|
||||
affected the Vax version as well), sums the elements of the percpu
|
||||
array to calculate a cp_time value (for OSx 4.0).
|
||||
|
||||
Fri May 1 1987 - wnl (2.3)
|
||||
I have finally finished all the changes for better support of
|
||||
oddbal terminals. Added the low-level routine "clear_eol" which
|
||||
makes handling terminals without "ce" easy: it uses spaces
|
||||
instead. All direct uses of "clear_line" outside of screen.c have
|
||||
been changed to use this primitive. A terminal with "os" is now
|
||||
handled in such that all situations that need overwriting are
|
||||
completely avoided (including several commands). This required
|
||||
some changes to the way commands are translated into action (in
|
||||
"top.c"). Made several important changes to display.c to prevent
|
||||
overflowing of any of the fields. Specifically, more than 99
|
||||
total processes and a cpu state that reaches 100%. Had to make a
|
||||
small change to two casts in top.c, because the Sun 3.2 compiler
|
||||
was giving warnings on them. Added the "-q" option which lets
|
||||
root run top at a nice of -20 (in case he thinks he really needs it).
|
||||
|
||||
Tue Dec 30 1986 - wnl (2.2)
|
||||
I think I fixed a bug reported by Julian Onions at Nottingham.
|
||||
Occasionally, top will core dump when the sprintf in either
|
||||
i_process or u_process overflows due to an exceptionally
|
||||
unrealistic time value. I think it highly unlikely that top can
|
||||
get a bad proc structure (although I suppose it is possible), but
|
||||
the process time is read from the user structure, and that can
|
||||
sometimes be part garbage. So, "get_ucpu" checks the value it
|
||||
returns to make sure its formatted form will not overflow the
|
||||
sprintf. If this doesn't fix the bug, then more drastic measures
|
||||
will be necessary. I plan to make this version the official
|
||||
"top 2.2". [[ This version was never distributed very widely. ]]
|
||||
|
||||
Tue Dec 2 1986 - wnl (2.2c)
|
||||
Added to top.c the notion of a "failed command". When a command
|
||||
produces a message (on the message line), an update does not
|
||||
follow it. Before, the message was written and a new display was
|
||||
shown---purposefully not overwriting the message. But the
|
||||
improvements to handle overstriking terminals and terminals
|
||||
without "ce" clear the screen before every display, which would
|
||||
erase the message. Now, the message is displayed and top waits
|
||||
another full time interval before updating the display. This
|
||||
works much better all around.
|
||||
|
||||
Mon Nov 24 1986 - wnl (2.2b)
|
||||
Created a new file, utils.c, and made appropriate changes to
|
||||
Makefile. This new file holds all utility functions that can and
|
||||
may be used by more than one "module". Improved i_memory and
|
||||
u_memory (display.c) so that screen updates for the values
|
||||
displayed are only changed when necessary. Also made the line
|
||||
look better: the last fixes made for a rather ugly display.
|
||||
Added the locally defined constant "LoadMax" and added code to
|
||||
top.c to send the cursor home after a space command is entered if
|
||||
the load average is higher than "LoadMax". This provides visual
|
||||
feedback on loaded systems.
|
||||
|
||||
Mon Nov 3 1986 - wnl (2.2a)
|
||||
Widened the format for memory usage so that it can display 5
|
||||
digits. This makes that line look a little ugly---maybe I'll fix
|
||||
that later. Screen handling now understands "os" and a missing
|
||||
"ce". It treats them identically: clear the screen between each
|
||||
display. Screen handling code now uses "cd" when appropriate
|
||||
(i.e.: when user has shortened the screen). Made i_loadave clear
|
||||
then screen and took out most of the explicit calls to "clear" in
|
||||
top.c. This method is cleaner, especially in conjunction with
|
||||
"os" handling. Added preprocessor variable "RANDOM_PW" for
|
||||
systems that access the passwd file randomly (Sun's yp and 4.3).
|
||||
With "RANDOM_PW" set, "getpwuid" is used instead of "getpwnam",
|
||||
but uid->username mappings are still hashed internally (because
|
||||
that is still faster than going to disk).
|
||||
|
||||
Mon Oct 6 1986 - wnl (2.1)
|
||||
A bug with the kill command was pointed out by "dciem!tim"---
|
||||
specifying a signal by name did not work correctly. This bug has
|
||||
been fixed with a simple change to commands.c. Another bug made
|
||||
the cpu state percentages incorrect the first time they were
|
||||
displayed. This bug has also been fixed (changed top.c).
|
||||
|
||||
Thu Sep 4 1986 - wnl (2.0, at last)
|
||||
This is the version that will (hopefully) get released to the
|
||||
world as top 2.0.
|
||||
Added the "r" and "k" commands for renice and kill, respectively.
|
||||
This required adding a way to handle system call errors, and the
|
||||
addition of the "e" command. Help screen and manual page were
|
||||
changed to reflect this change. Changed all "#ifdef SUN" directives
|
||||
to "#ifdef sun", and changed all "#ifdef PYRAMID" directives to
|
||||
"#ifdef pyr". As much as I hate those choices of preprocessor
|
||||
names (they too easily conflict with real variable names), it does
|
||||
make automatic compilation possible---people don't have to change
|
||||
the Makefile anymore for specific machines. The manual page was
|
||||
changed to automatically incorporate the defaults as set in the
|
||||
Makefile (including an infinite value for TOPN) and the way the
|
||||
manual page is generated by the Makefile was changed to make
|
||||
maintenance of this information automatic.
|
||||
|
||||
Mon Jul 28 1986 - wnl (still pre 2.0)
|
||||
Real close now. I put in a new definition for the macro "pagetok"
|
||||
that does an explicit shift of a constant expression involving
|
||||
PGSHIFT. Appropriate checks are made if PGSHIFT is to small.
|
||||
"pagetok" is now used exclusively everywhere to convert kernel
|
||||
clicks to kilobytes. I added a full blown interactive mode with
|
||||
the ability to change some of the runtime parameters (how many to
|
||||
display, time delay, etc.) while top is running. I also
|
||||
incorporated a few ideas from the net: control characters in the
|
||||
command name are replaced with '?'; the '-S' option makes the
|
||||
swapper and pager visible; options have been added to control the
|
||||
number of displays produced (this makes it easier to make
|
||||
performance snapshots with top). I have also added the notion of
|
||||
"infinite" values for number of processes and number of displays.
|
||||
I fixed a long-standing bug in the uid to username mapping code
|
||||
that was only aggravated on the pyramids: it was an ill-defined
|
||||
expression (akin to i = i++). I tweaked the proc_compar routine
|
||||
for qsort slightly so that stopped processes were more likely to
|
||||
show up. Manual page was updated to reflect all changes
|
||||
noticeable to the user.
|
||||
|
||||
Tue Jul 1 1986 - wnl (pre 2.0 -- 1.9999?)
|
||||
In the process of major revamping on the way to version 2.0.
|
||||
I have completely done away with curses by adding my own screen
|
||||
management routines in a separate file (screen.c). The rationale
|
||||
for this is that top knows a whole lot more about what is and is
|
||||
not redundant on the screen and can compare simple integer values
|
||||
where curses would have to compare strings. This has turned out
|
||||
to be a very big win speed-wise. The proc_compar routine for
|
||||
sorting has been rewritten to include several more keys. I
|
||||
decided this was necessary when I noticed that the "top" process
|
||||
itself kept disappearing off the top 10 list on a Sun-3. All the
|
||||
processes had the same percentage (0%) and the sort wasn't really
|
||||
doing anything worthwhile. I changed the expression that computes
|
||||
memory usage to use the ctob macro instead of just assuming that
|
||||
pages were 512 bytes. More work still needs to be done before
|
||||
this version is usable. I changed options-processing to use
|
||||
getopt and added appropriate incantations to the Makefile.
|
||||
|
||||
Wed Feb 20 1985 - wnl (still 1.8)
|
||||
Put in the ifdef FOUR_ONE statements to make top still compilable
|
||||
on a 4.1 system. Apparently, there are some users out there that
|
||||
need this functionality. Oh well. I don't guarantee any of it,
|
||||
since I can't test it. Made appropriate changes to README and
|
||||
final installation related changes to Makefile.
|
||||
|
||||
Sat Feb 2 1985 - wnl (1.8)
|
||||
Removed all the ifdef FOUR_TWO statements and made "top" into a
|
||||
4.2 only program. If someone really wants to still run it on 4.1,
|
||||
then they can do all the work. We don't have a 4.1 machine
|
||||
anymore, so I don't even know if the thing still works under 4.1.
|
||||
Cleaned up the Makefile and the README. Added installation rules
|
||||
to the Makefile, as requested by several sites. Fixed a very
|
||||
obscure divide-by-zero bug. Added a second "key" to the qsort
|
||||
comparison function (proc_compar) so that comparisons are based on
|
||||
cpu ticks if the percentages are equal (provided by Jonathon
|
||||
Feiber at Sun).
|
||||
|
||||
Tue Dec 11 1984 - wnl (1.7)
|
||||
Added the virtual and real memory status line to the header area
|
||||
(provided by Jonathon Feiber at Sun)
|
||||
|
||||
Tue Nov 20 1984 - wnl (1.6)
|
||||
Added an "exit" if sbrk's fail. Added changes from Jonathon
|
||||
Feiber at Sun: ifdef SUN to make top work on Suns (they don't use
|
||||
doubles in the proc structure), register declarations, check for
|
||||
getting a user structure that has disappeared since the proc array
|
||||
was read (it used to die, now it just shows the process as swapped).
|
||||
|
||||
Tue Nov 13 1984 - wnl (1.5)
|
||||
If the number of displayable processes ("active_procs") was less
|
||||
than the number of requested processes ("topn"), top would
|
||||
segmentation fault. This bug has been fixed. Thanks to Prentiss
|
||||
Riddle at ut-sally for pointing out the existence of this bug.
|
||||
|
||||
Tue Oct 23 1984 - wnl (1.4)
|
||||
Finally fixed the hash table bug that caused processes owned by
|
||||
root to sometimes appear with either no name or a different name
|
||||
that had UID 0 (such as "operator"). Removed all the ifdef DEBUG
|
||||
blocks to make top ready for distribution to the real world.
|
||||
|
||||
Sun Apr 8 1984 - wnl (still 1.3)
|
||||
Made some slight changes to the display format. It now looks more
|
||||
aesthetically pleasing. Added some preprocessor constants so that
|
||||
the two defaults (number of processes and seconds of delay) easier
|
||||
to change.
|
||||
|
||||
Thu Apr 5 1984 - wnl (1.3)
|
||||
Changed the order in which things are done at initialization time.
|
||||
This way, if an error occurs before starting the main loop, curses
|
||||
will never get started. Also changed other error handlers so that
|
||||
endwin() is called before any flavor of exit. Specifying a number
|
||||
of processes that is more than the screen can handle is no longer
|
||||
fatal. It displays a warning message and pretends the user
|
||||
specified the maximum for the screen. Finally cured all the TSTP
|
||||
blues (well, almost all). I removed my TSTP handler and convinced
|
||||
the system to always use the one that curses sets up. Turns out
|
||||
that "sleep" was stepping all over it during a pause. So, I don't
|
||||
use sleep anymore. The only problem that remains with it now is
|
||||
redrawing the old display before updating it after a pause.
|
||||
|
||||
Tue Apr 3 1984 - wnl (from 1.0 to 1.2)
|
||||
I changed the format of the TIME column from just "seconds" to
|
||||
"minutes:seconds". I also made pausing work correctly. Screen
|
||||
redraws with an up to date display. For compatibility with 4.2, I
|
||||
changed the name of the "zero" function to "bzero". The makefile
|
||||
has been altered to handle versions for 4.1 and 4.2, and README
|
||||
has been updated to reflect these recent changes.
|
||||
503
contrib/top/Configure
Executable file
503
contrib/top/Configure
Executable file
@ -0,0 +1,503 @@
|
||||
#!/bin/csh -f
|
||||
#
|
||||
# Configuration script for top.
|
||||
#
|
||||
# Use with version 3.0 and higher.
|
||||
#
|
||||
set PRIME = "/usr/games/primes"
|
||||
set vars = (module LoadMax topn NominalTopn delay owner group mode random \
|
||||
TableSize bindir mandir manext mansty \
|
||||
Cmdshell Cmdcc Cmdawk Cmdinstall cdefs)
|
||||
set fastrack = 0
|
||||
set yesno = (no yes)
|
||||
|
||||
onintr byebye
|
||||
|
||||
# make sure that getans is there and ready
|
||||
if (! -e getans) then
|
||||
echo 'This package is not complete. The shell file "getans" is missing.'
|
||||
exit 10
|
||||
endif
|
||||
chmod +x getans
|
||||
|
||||
if ($#argv > 0) then
|
||||
# fast track configuration
|
||||
set fastrack = 1
|
||||
else
|
||||
cat <<'EOF'
|
||||
Configuration for top, version 3.4
|
||||
|
||||
One moment....
|
||||
'EOF'
|
||||
endif
|
||||
|
||||
# collect file names and module names
|
||||
ls machine/m_*.c >$$.f
|
||||
ls machine/m_*.man >$$.m
|
||||
sed -e 's@^machine/m_@@' -e 's/.c$//' $$.f >$$.n
|
||||
|
||||
# build Make.desc
|
||||
set descs = `sed -e 's@\.c$@.desc@' $$.f`
|
||||
sed -e "s@%descs%@$descs@" Make.desc.X >Make.desc
|
||||
|
||||
# build desc files and SYNOPSIS as needed
|
||||
make -f Make.desc >/dev/null
|
||||
|
||||
if (-e .defaults) then
|
||||
echo ""
|
||||
echo "Reading configuration from last time..."
|
||||
source .defaults
|
||||
set nodefaults = 0
|
||||
if ($fastrack == 1) then
|
||||
set module = $1
|
||||
endif
|
||||
else
|
||||
if ($fastrack == 1) then
|
||||
echo "No previous configuration was found."
|
||||
set fastrack = 0
|
||||
set module = $1
|
||||
else
|
||||
set module = ""
|
||||
endif
|
||||
set LoadMax = 5.0
|
||||
set topn = 15
|
||||
set NominalTopn = 18
|
||||
set delay = 5
|
||||
set TableSize = 0
|
||||
set bindir = /usr/local/bin
|
||||
set mandir = /usr/man/manl
|
||||
set manext = l
|
||||
set mansty = man
|
||||
set nodefaults = 1
|
||||
set Cmdshell = /bin/sh
|
||||
set Cmdawk = awk
|
||||
set Cmdinstall = ./install
|
||||
set Cmdcc = cc
|
||||
set cdefs = -O
|
||||
endif
|
||||
echo ""
|
||||
|
||||
if ($fastrack == 1) then
|
||||
grep -s $module $$.n >/dev/null
|
||||
if ($status != 0) then
|
||||
echo "$module is not recognized. To see a list of available modules"
|
||||
echo 'run "Configure" with no arguments.'
|
||||
rm -f $$.[fmn]
|
||||
exit 1
|
||||
endif
|
||||
set random1 = `expr $random + 1`
|
||||
cat <<EOF
|
||||
Using these settings:
|
||||
Bourne Shell $Cmdshell
|
||||
C compiler $Cmdcc
|
||||
Compiler options $cdefs
|
||||
Awk command $Cmdawk
|
||||
Install command $Cmdinstall
|
||||
|
||||
Module $module
|
||||
LoadMax $LoadMax
|
||||
Default TOPN $topn
|
||||
Nominal TOPN $NominalTopn
|
||||
Default Delay $delay
|
||||
Random passwd access $yesno[$random1]
|
||||
Table Size $TableSize
|
||||
Owner $owner
|
||||
Group Owner $group
|
||||
Mode $mode
|
||||
bin directory $bindir
|
||||
man directory $mandir
|
||||
man extension $manext
|
||||
man style $mansty
|
||||
|
||||
EOF
|
||||
goto fast
|
||||
endif
|
||||
|
||||
cat <<'EOF'
|
||||
You will be asked a series of questions. Each question will have a
|
||||
default answer enclosed in brackets, such as "[5.0]". In most cases,
|
||||
the default answer will work well. To use that value, merely press
|
||||
return.
|
||||
|
||||
'EOF'
|
||||
|
||||
# display synopses
|
||||
|
||||
getmod:
|
||||
cat <<'EOF'
|
||||
|
||||
The following machine-dependent modules are available:
|
||||
'EOF'
|
||||
awk -F: ' { printf "%-8s %s\n", $1, $2 }' SYNOPSIS
|
||||
echo ''
|
||||
./getans "What module is appropriate for this machine? " string "$module" .$$
|
||||
set module = `cat .$$`
|
||||
|
||||
if ("$module" == "") then
|
||||
echo "Please specify a valid module name."
|
||||
goto getmod
|
||||
endif
|
||||
|
||||
# is it a valid one?
|
||||
grep -s "$module" $$.n >/dev/null
|
||||
if ($status != 0) then
|
||||
echo "That is not a recognized module name."
|
||||
goto getmod
|
||||
endif
|
||||
|
||||
# display a full description
|
||||
sed -e '1,/DESCRIPTION:/d' -e '/^$/,$d' machine/m_${module}.desc
|
||||
|
||||
# verify it
|
||||
echo ""
|
||||
./getans "Is this what you want to use?" yesno 1 .$$
|
||||
if (`cat .$$` == 0) then
|
||||
goto getmod
|
||||
endif
|
||||
endif
|
||||
|
||||
cat <<'EOF'
|
||||
|
||||
First we need to find out a little bit about the executables needed to
|
||||
compile top.
|
||||
|
||||
'EOF'
|
||||
./getans "What is the full path name for the Bourne shell" file "$Cmdshell" .$$
|
||||
set Cmdshell = `cat .$$`
|
||||
|
||||
cat <<'EOF'
|
||||
|
||||
Please supply the name of the appropriate command. It need not be a
|
||||
full path name, but the named command does need to exist somewhere on
|
||||
the current path.
|
||||
|
||||
'EOF'
|
||||
./getans "AWK Interpreter" path "$Cmdawk" .$$
|
||||
set Cmdawk = `cat .$$`
|
||||
./getans "C Compiler" path "$Cmdcc" .$$
|
||||
set Cmdcc = `cat .$$`
|
||||
|
||||
cat <<'EOF'
|
||||
|
||||
The installer command needs to understand Berkeley-esque arguments:
|
||||
"-o" for owner, "-g" for group, and "-m" for mode. A shell script
|
||||
called "install" is distributed with top and is suitable for use by
|
||||
top. You can specify a different program here if you like, or use
|
||||
the shell script (the default).
|
||||
|
||||
'EOF'
|
||||
./getans "Installer" path "$Cmdinstall" .$$
|
||||
set Cmdinstall = `cat .$$`
|
||||
|
||||
cat <<EOF
|
||||
|
||||
What other options should be used with the $Cmdcc command (use "none" to
|
||||
specify no options)?
|
||||
EOF
|
||||
./getans "Compiler options" string "$cdefs" .$$
|
||||
set cdefs = `cat .$$`
|
||||
if ("$cdefs" == "none") then
|
||||
set cdefs = ""
|
||||
endif
|
||||
|
||||
cat <<'EOF'
|
||||
|
||||
Now you need to answer some questions concerning the configuration of
|
||||
top itself.
|
||||
|
||||
The space command forces an immediate update. Sometimes, on loaded
|
||||
systems, this update will take a significant period of time (because all
|
||||
the output is buffered). So, if the short-term load average is above
|
||||
"LoadMax", then top will put the cursor home immediately after the space
|
||||
is pressed before the next update is attempted. This serves as a visual
|
||||
acknowledgement of the command. "LoadMax" should always be specified as a
|
||||
floating point number.
|
||||
|
||||
'EOF'
|
||||
./getans "LoadMax" number "$LoadMax" .$$
|
||||
set LoadMax = `cat .$$`
|
||||
|
||||
cat <<'EOF'
|
||||
|
||||
"Default TOPN" is the default number of processes to show. This is the
|
||||
number that will be used when the user does not specify the number of
|
||||
processes to show. If you want "all" (or infinity) as the default, use
|
||||
the value "-1".
|
||||
|
||||
'EOF'
|
||||
|
||||
./getans "Default TOPN" neginteger "$topn" .$$
|
||||
set topn = `cat .$$`
|
||||
|
||||
cat <<'EOF'
|
||||
|
||||
"Nominal_TOPN" is used as the default TOPN when Default_TOPN is Infinity
|
||||
and the output is a dumb terminal. If we didn't do this, then
|
||||
installations who use a default TOPN of Infinity will get every process in
|
||||
the system when running top on a dumb terminal (or redirected to a file).
|
||||
Note that Nominal_TOPN is a default: it can still be overridden on the
|
||||
command line, even with the value "infinity".
|
||||
|
||||
'EOF'
|
||||
|
||||
./getans "Nominal TOPN" integer "$NominalTopn" .$$
|
||||
set NominalTopn = `cat .$$`
|
||||
|
||||
cat <<'EOF'
|
||||
|
||||
Default Delay is the default number of seconds to wait between screen
|
||||
updates.
|
||||
|
||||
'EOF'
|
||||
|
||||
./getans "Default Delay" integer "$delay" .$$
|
||||
set delay = `cat .$$`
|
||||
|
||||
echo ""
|
||||
|
||||
set rand = 0
|
||||
ypwhich >&/dev/null
|
||||
if ($status == 0 || -e /etc/passwd.dir || -e /etc/pwd.db) then
|
||||
set rand = 1
|
||||
endif
|
||||
|
||||
if ($rand == 1) then
|
||||
echo "It looks like you have a passwd file that can be accessed at random."
|
||||
set pr = 'Do you want top to take advantage of this'
|
||||
else
|
||||
echo "It looks like you have conventional passwd file access. Top can take"
|
||||
echo "advantage of a random access passwd mechanism if such exists. Do"
|
||||
echo "you want top to assume that accesses to the file /etc/passwd are done"
|
||||
set pr = 'with random access rather than sequential'
|
||||
endif
|
||||
|
||||
if ($nodefaults == 1) then
|
||||
set random = $rand
|
||||
endif
|
||||
|
||||
./getans "${pr}?" yesno $random .$$
|
||||
set random = `cat .$$`
|
||||
|
||||
echo ""
|
||||
echo "Compiling prime.c"
|
||||
$Cmdcc $cdefs -o prime prime.c -lm
|
||||
if ($status != 0) then
|
||||
echo "Oh well."
|
||||
rm -f prime
|
||||
endif
|
||||
|
||||
echo ""
|
||||
|
||||
ypcat passwd.byname >&/tmp/$$.a
|
||||
if ($status == 0) then
|
||||
set cnt = `wc -l </tmp/$$.a`
|
||||
set mapfile = "NIS map"
|
||||
else
|
||||
set cnt = `wc -l </etc/passwd`
|
||||
set mapfile = "file"
|
||||
endif
|
||||
rm /tmp/$$.a
|
||||
set double = `expr $cnt \* 2`
|
||||
echo "I found $cnt entries in your passwd $mapfile. Top hashes the username to"
|
||||
echo "uid mappings as it goes along and it needs a good guess on the size of"
|
||||
echo "that hash table. This number should be the next highest prime number"
|
||||
echo "after $double."
|
||||
echo ""
|
||||
if (-e prime) then
|
||||
set pr = `./prime $double`
|
||||
echo "I have calculated that to be $pr."
|
||||
else if (-e $PRIME) then
|
||||
set pr = `$PRIME $double | head -1`
|
||||
echo "I have calculated that to be $pr."
|
||||
else
|
||||
set pr = $double
|
||||
echo "I cannot calculate that prime number, so you will need to provide it for me."
|
||||
endif
|
||||
|
||||
if ($TableSize == 0) then
|
||||
set TableSize = $pr
|
||||
endif
|
||||
|
||||
./getans "Enter the hash table size" integer "$TableSize" .$$
|
||||
set TableSize = `cat .$$`
|
||||
|
||||
echo ""
|
||||
|
||||
# !!! I need to fix this: /dev/kmem might not exist on some machines !!!
|
||||
|
||||
# determine the right way to invoke ls to get full output
|
||||
set ls = "ls -l"
|
||||
if (`$ls getans | wc -w` < 9) then
|
||||
set ls = "ls -lg"
|
||||
endif
|
||||
|
||||
set t_owner = root
|
||||
set t_group = `$ls -d /usr/bin | awk ' { print $4 }'`
|
||||
if (-e /proc) then
|
||||
cat <<EOF
|
||||
Uh oh! I see /proc out there. Some new Unix variants provide the /proc
|
||||
file system as a mechanism to get to a process's address space. This
|
||||
directory is typically only accessible by root. However, there are a few
|
||||
systems (such as DG/UX) on which this directory exists, but isn't used.
|
||||
I'm going to assume that top needs to run setuid to root, but you should
|
||||
double check and use mode 2755 (set group id) if top doesn't really need
|
||||
root access. If you are running SunOS 5.x then you will need to install
|
||||
top setuid root (owner root and mode 4711).
|
||||
|
||||
EOF
|
||||
set t_mode = 4711
|
||||
set mode = 4711
|
||||
else if (-e /dev/kmem) then
|
||||
$ls /dev/kmem >/tmp/$$.b
|
||||
grep '^....r..r..' /tmp/$$.b >&/dev/null
|
||||
if ($status == 1) then
|
||||
grep '^....r..-..' /tmp/$$.b >&/dev/null
|
||||
if ($status == 0) then
|
||||
set t_group = `awk ' { print $4 }' /tmp/$$.b`
|
||||
set t_mode = 2755
|
||||
echo "It looks like only group $t_group can read the memory devices."
|
||||
else
|
||||
set t_mode = 4755
|
||||
echo "It looks like only root can read the memory devices."
|
||||
endif
|
||||
else
|
||||
set t_mode = 755
|
||||
echo "It looks like anybody can read the memory devices."
|
||||
endif
|
||||
else
|
||||
echo "It looks like there are no memory device special files."
|
||||
set t_mode = 755
|
||||
endif
|
||||
if ($nodefaults) then
|
||||
set owner = $t_owner
|
||||
set group = $t_group
|
||||
set mode = $t_mode
|
||||
endif
|
||||
echo "Tell me how to set the following when top is installed:"
|
||||
./getans "Owner" user "$owner" .$$
|
||||
set owner = `cat .$$`
|
||||
./getans "Group owner" group "$group" .$$
|
||||
set group = `cat .$$`
|
||||
./getans "Mode" integer "$mode" .$$
|
||||
set mode = `cat .$$`
|
||||
rm -f /tmp/$$.b
|
||||
|
||||
echo ""
|
||||
./getans "Install the executable in this directory" file "$bindir" .$$
|
||||
set bindir = `cat .$$`
|
||||
|
||||
echo ""
|
||||
./getans "Install the manual page in this directory" file "$mandir" .$$
|
||||
set mandir = `cat .$$`
|
||||
|
||||
echo ""
|
||||
./getans "Install the manual page with this extension" string "$manext" .$$
|
||||
set manext = `cat .$$`
|
||||
|
||||
echo ""
|
||||
./getans "Install the manual page as 'man' or 'catman'" string "$mansty" .$$
|
||||
set mansty = `cat .$$`
|
||||
|
||||
echo ""
|
||||
echo "We are done with the questions."
|
||||
|
||||
# Some Unix environments are so poor that their csh doesn't even support
|
||||
# the "eval" builtin. Check for this before relying on its use to save
|
||||
# the current configuration.
|
||||
/bin/csh -c "eval echo foo" >&/dev/null
|
||||
if ($status == 1) then
|
||||
echo "Can't save configuration (nonfatal)"
|
||||
else
|
||||
echo "Saving configuration..."
|
||||
# save settings to use as defaults the next time
|
||||
rm -f .defaults
|
||||
foreach v ($vars)
|
||||
set tmp = `eval echo \$$v`
|
||||
echo set $v = "'$tmp'" >>.defaults
|
||||
end
|
||||
endif
|
||||
|
||||
fast:
|
||||
|
||||
# set variables which contain module lists
|
||||
set modules = `cat $$.f`
|
||||
set manmodules = `cat $$.m`
|
||||
|
||||
# clean up
|
||||
rm -f $$.f $$.m $$.n
|
||||
|
||||
# set the link for machine.c
|
||||
rm -f machine.c machine.o
|
||||
ln -s machine/m_${module}.c machine.c
|
||||
|
||||
# get definitions out of the module file
|
||||
set libs = `grep LIBS: machine/m_${module}.desc | sed -e 's/^.[^:]*: *//'`
|
||||
set cflgs = `grep CFLAGS: machine/m_${module}.desc | sed -e 's/^.[^:]*: *//'`
|
||||
set tcap = `grep TERMCAP: machine/m_${module}.desc | sed -e 's/^.[^:]*: *//'`
|
||||
|
||||
# default for tcap (termcap)
|
||||
if ("$tcap" == "") then
|
||||
set tcap="-ltermcap"
|
||||
endif
|
||||
|
||||
if ( { grep -s SIGKILL /usr/include/signal.h } ) then
|
||||
set signal="/usr/include/signal.h"
|
||||
else
|
||||
set signal="/usr/include/sys/signal.h"
|
||||
endif
|
||||
|
||||
|
||||
echo "Building Makefile..."
|
||||
sed -e "s|%topn%|$topn|" \
|
||||
-e "s|%delay%|$delay|" \
|
||||
-e "s|%owner%|$owner|" \
|
||||
-e "s|%group%|$group|" \
|
||||
-e "s|%mode%|$mode|" \
|
||||
-e "s|%bindir%|$bindir|" \
|
||||
-e "s|%mandir%|$mandir|" \
|
||||
-e "s|%manext%|$manext|" \
|
||||
-e "s|%mansty%|$mansty|" \
|
||||
-e "s|%tablesize%|$TableSize|" \
|
||||
-e "s|%libs%|$libs|" \
|
||||
-e "s|%cflgs%|$cflgs|" \
|
||||
-e "s|%termcap%|$tcap|" \
|
||||
-e "s|%cdefs%|$cdefs|" \
|
||||
-e "s|%modules%|$modules|" \
|
||||
-e "s|%manmodules%|$manmodules|" \
|
||||
-e "s|%signal%|$signal|" \
|
||||
-e "s|%cc%|$Cmdcc|" \
|
||||
-e "s|%awk%|$Cmdawk|" \
|
||||
-e "s|%install%|$Cmdinstall|" \
|
||||
-e "s|%shell%|$Cmdshell|" \
|
||||
Makefile.X >Makefile
|
||||
|
||||
echo "Building top.local.h..."
|
||||
sed -e "s|%LoadMax%|$LoadMax|" \
|
||||
-e "s|%TableSize%|$TableSize|" \
|
||||
-e "s|%NominalTopn%|$NominalTopn|" \
|
||||
-e "s|%topn%|$topn|" \
|
||||
-e "s|%delay%|$delay|" \
|
||||
-e "s|%random%|$random|" \
|
||||
top.local.H >top.local.h
|
||||
|
||||
echo "Building top.1..."
|
||||
sed -e "s|%topn%|$topn|" \
|
||||
-e "s|%delay%|$delay|" \
|
||||
top.X >top.1
|
||||
if (-e machine/m_${module}.man ) then
|
||||
cat machine/m_${module}.man >>top.1
|
||||
endif
|
||||
|
||||
# clean up
|
||||
rm -f .$$
|
||||
|
||||
echo 'Doing a "make clean".'
|
||||
make clean
|
||||
|
||||
echo 'To create the executable, type "make".'
|
||||
echo 'To install the executable, type "make install".'
|
||||
exit 0
|
||||
|
||||
byebye:
|
||||
rm -f .$$ $$.[fmn] /tmp/$$.[ab]
|
||||
exit 1
|
||||
30
contrib/top/DISCLAIMER
Normal file
30
contrib/top/DISCLAIMER
Normal file
@ -0,0 +1,30 @@
|
||||
DISCLAIMER
|
||||
|
||||
"top" is distributed free of charge. It should not be considered an
|
||||
official product of Argonne National Laboratory. William LeFebvre
|
||||
supports "top" in his spare time and as time permits.
|
||||
|
||||
NO WARRANTY:
|
||||
|
||||
BECAUSE "top" IS DISTRIBUTED FREE OF CHARGE, THERE IS ABSOLUTELY NO
|
||||
WARRANTY PROVIDED, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW.
|
||||
EXCEPT WHEN OTHERWISE STATED IN WRITING, ARGONNE NATIONAL LABORATORY,
|
||||
NORTHWESTERN UNIVERSITY, WILLIAM N. LeFEBVRE AND/OR OTHER PARTIES
|
||||
PROVIDE "top" "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
|
||||
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK
|
||||
AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD
|
||||
THE "top" PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
|
||||
NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
IN NO EVENT WILL ARGONNE NATIONAL LABORATORY, NORTHWESTERN UNIVERSITY,
|
||||
WILLIAM N. LeFEBVRE, AND/OR ANY OTHER PARTY WHO MAY MODIFY AND
|
||||
REDISTRIBUTE "top", BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY LOST
|
||||
PROFITS, LOST MONIES, OR OTHER SPECIAL, INCIDENTAL OR CONSEQUENTIAL
|
||||
DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE (INCLUDING BUT NOT
|
||||
LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES
|
||||
SUSTAINED BY THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH
|
||||
OTHER PROGRAMS) THE PROGRAM, EVEN IF YOU HAVE BEEN ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY.
|
||||
|
||||
So there!
|
||||
233
contrib/top/FAQ
Normal file
233
contrib/top/FAQ
Normal file
@ -0,0 +1,233 @@
|
||||
TOP
|
||||
Version 3.4
|
||||
|
||||
William LeFebvre
|
||||
and a cast of dozens
|
||||
|
||||
|
||||
FREQUENTLY ASKED QUESTIONS AND THEIR ANSWERS
|
||||
|
||||
This FAQ is broken out in to several topics.
|
||||
|
||||
|
||||
GENERAL
|
||||
|
||||
1. "Where do I get the latest version of top?"
|
||||
|
||||
The latest version of top is now available at the site "ftp.groupsys.com" in
|
||||
the directory "/pub/top". It is also available at "eecs.nwu.edu" in the
|
||||
directory "/pub/top".
|
||||
|
||||
2. "Is there a web page for top?"
|
||||
|
||||
Not at this time, but I am planning one. When it is finally available, you
|
||||
will be able to find it at "www.groupsys.com."
|
||||
|
||||
3. "Is there a mailing list for top?"
|
||||
|
||||
Currently there is a top developers mailing list that is used by beta
|
||||
testers and other people who help me port the program to various machines.
|
||||
I am planning a general mailing list for announcements and such, but it is
|
||||
not yet available.
|
||||
|
||||
4. "How can I find out when all these things become available?"
|
||||
|
||||
Information about the web site and the mailing list will be made available
|
||||
in future distributions of top. New distributions will be announced on the
|
||||
appropriate Usenet newsgroups (including comp.sources.unix).
|
||||
|
||||
5. "Why does it take so long for a new version of top to go through the
|
||||
beta test process?"
|
||||
|
||||
This is completely my fault. I have just not had the time recently to give
|
||||
top the attention it deserves. I thank everyone for their patience, and I
|
||||
hope that with the recent changes in the direction of my career that I can
|
||||
spend more time on this.
|
||||
|
||||
6. "Top is not written in ANSI C. Do you ever plan to change that?"
|
||||
|
||||
Top predates ANSI C by about 5 years. Yeah, it'll get "fixed" eventually.
|
||||
Probably in 3.5.
|
||||
|
||||
|
||||
CONFIGURING
|
||||
|
||||
7. "Configure said that it saw /proc and is recommending that I install top
|
||||
setuid root. Is there any way around this? Is it safe?"
|
||||
|
||||
There is no way around it. Complain to POSIX. Every effort has been made
|
||||
to make top a secure setuid program. However, we cannot guarantee that
|
||||
there are no security problems associated with this configuration. The
|
||||
places where top is most vulnerable are the builtin kill and renice
|
||||
commands. There is no internal top command that causes top to start a shell
|
||||
as a subprocess. Some SVR4 systems may contain a bug that enables a user to
|
||||
renice his own processes downward (to lower nice values that are more
|
||||
favorable for the process). This problem has been fixed for the Solaris 2.x
|
||||
modules, but may still exist in others. We will hopefully fix this up in
|
||||
the next release.
|
||||
|
||||
8. "Why is Configure a c-shell script? I thought c-shell scripts were
|
||||
evil?"
|
||||
|
||||
They are. :-) I'll probably be rewriting the Configure script for the
|
||||
next release.
|
||||
|
||||
|
||||
COMPILING
|
||||
|
||||
9. "We just upgraded our operating system to a new version and top broke.
|
||||
What should we do?"
|
||||
|
||||
Recompile it. Top is very sensitive to changes in internal kernel data
|
||||
structures. It is not uncommon for a new version of the operating system to
|
||||
include changes to kernel data structures.
|
||||
|
||||
|
||||
RUNNING
|
||||
|
||||
10. "I just finished compiling top and it works fine for root, but when
|
||||
I try to run it as a regular user it either complains about files
|
||||
it can't open or it doesn't display all the information it should.
|
||||
Did I do something wrong?"
|
||||
|
||||
Well, you're just not done. On many operating systems today, access to
|
||||
many of the kernel memory devices and other system files is restricted to
|
||||
either root or a particular group. The Configure script figures this out
|
||||
(usually) and makes sure that the "intsall" rule in the Makefile will
|
||||
install top so that anyone can run it successfully. However, you have to
|
||||
*install* it first. Do this with the command "make install".
|
||||
|
||||
11. "Top is (not) displaying idle processes and I don't (do) want it to."
|
||||
|
||||
This default has only changed about a dozen times, and I finally got tired
|
||||
of people whining about it. Go read the manual page for the current version
|
||||
and pay special attention to the description of the "TOP" environment
|
||||
variable.
|
||||
|
||||
12. "We have so much memory in our machine that the memory status display
|
||||
(the fourth line) ends up being longer than 80 characters. This
|
||||
completely messes up top's output. Is there a patch?"
|
||||
|
||||
Most modules have been changed to use new memory formatting functions which
|
||||
will display large values in terms of megabytes instead of kilobytes. This
|
||||
should fix all occurences of this problem. If you encounter a system where
|
||||
this large memory display overflow is still occurring, please let me know
|
||||
(send mail to <wnl@groupsys.com>). Also note that newer versions of top can
|
||||
use columns beyond 79, and understand window resizes. So you can always
|
||||
make your window bigger.
|
||||
|
||||
13. "I tried to compile top with gcc and it doesn't work. I get
|
||||
compilation errors in the include files, or I get an executable that
|
||||
dumps core, or top displays incorrect numbers in some of the displays.
|
||||
What's wrong?"
|
||||
|
||||
Gnu CC likes very much to use its own include files. Not being a gcc
|
||||
expert, I can't explain why it does this. But I can tell you that if you
|
||||
upgrade your operating system (say from Solaris 2.4 to Solaris 2.5) after
|
||||
installing gcc, then the include files that gcc uses will be incorrect,
|
||||
especially those found in the "sys" directory. Your choices are: (1)
|
||||
rebuild and reinstall the "standard" include files for gcc (look for a
|
||||
script in the distribution called "fixincludes"), (2) compile machine.c
|
||||
with "CFLAGS=-I/usr/include" then make the rest of the object files
|
||||
normally, or (3) use "cc".
|
||||
|
||||
14. "The cpu state percentages are all wrong, indicating that my machine is
|
||||
using 95% system time when it is clearly idle. What's wrong?"
|
||||
|
||||
This can happen if you compiled with gcc using the wrong include files.
|
||||
See the previous question.
|
||||
|
||||
|
||||
SUNOS PROBLEMS
|
||||
|
||||
15. "I tried compiling top under SunOS version 4.1.x and it got compile time
|
||||
errors. Is there a patch?"
|
||||
|
||||
If you try compiling top in a "System V environment" under SunOS (that is,
|
||||
/usr/5bin is before /usr/bin on your path) then the compilation may fail.
|
||||
This is mostly due to the fact that top thinks its being compiled on a
|
||||
System V machine when it really isn't. The only solution is to put /usr/bin
|
||||
and /usr/ucb before /usr/5bin on your path and try again.
|
||||
|
||||
|
||||
SVR4-derived PROBLEMS
|
||||
|
||||
16. "When I run top on my SVR4-derived operating system, it displays all
|
||||
the system information at the top but does not display any process
|
||||
information (or only displayes process information for my own
|
||||
processes). Yet when I run it as root, everything works fine."
|
||||
|
||||
Your system probably uses the pseudo file system "/proc", which is by
|
||||
default only accessible by root. Top needs to be installed setuid root on
|
||||
such systems if it is going to function correctly for normal users.
|
||||
|
||||
|
||||
SOLARIS PROBLEMS
|
||||
|
||||
17. "Under Solaris 2, when I run top as root it only shows root processes,
|
||||
or it only shows processes with a PID less than 1000. It refuses to
|
||||
show anything else. What do I do?"
|
||||
|
||||
You probably compiled it with /usr/ucb/cc instead of the real C compiler.
|
||||
/usr/ucb/cc is a cc front end that compiles programs in BSD source-level
|
||||
compatability mode. You do not want that. Make sure that /usr/ucb is not
|
||||
on your path and try compiling top again.
|
||||
|
||||
18. "Under Solaris 2, I compiled top using what I am sure is the correct
|
||||
compiler but when I try to run it it complains about missing dynamic
|
||||
libraries. What is wrong?"
|
||||
|
||||
Check to see if you have LD_LIBRARY_PATH defined in your shell. If you do,
|
||||
make sure that /usr/ucblib is not on the path anywhere. Then try compiling
|
||||
top again.
|
||||
|
||||
19. "Under Solaris 2, when I try to run top it complains that it can't open
|
||||
the library "libucb.so.1". So I changed the LIBS line in m_sunos5.c
|
||||
to include -R/usr/ucblib to make sure that the dynamic linker will look
|
||||
there when top runs. I figured this was just an oversight. Was I
|
||||
right?"
|
||||
|
||||
No, you were not right. As distributed, top requires NO alterations for
|
||||
successful compilation and operations under Solaris 2.0, 2.1, 2.2, 2.3, 2.4,
|
||||
and 2.5. You probably compiled top with /usr/ucb/cc instead of the real C
|
||||
compiler. See FAQ #10 for more details.
|
||||
|
||||
|
||||
SCO PROBLEMS
|
||||
|
||||
20. "When I try to run Configure, it complains about a syntax error."
|
||||
|
||||
Some versions of SCO's csh do not understand the syntax "$<". This breaks
|
||||
Configure. You'll just have to hack around it for now: the Configure script
|
||||
is going to be completely redone in the near future anyway.
|
||||
|
||||
|
||||
SVR42 PROBLEMS
|
||||
|
||||
21. "The load average and memory displays don't work right. Why?"
|
||||
|
||||
This is a known bug with the svr42 module. The problem has been traced down
|
||||
to a potential bug in the "mem" driver. The author of the svr42 module is
|
||||
working on a fix.
|
||||
|
||||
|
||||
STILL STUCK
|
||||
|
||||
22. I'm still stuck. To whom do I report problems with top?"
|
||||
|
||||
The most common problems are caused by top's sensitivity to internal kernel
|
||||
data structures. So make sure that you are using the right include files,
|
||||
and make sure that you test out top on the same machine where you compiled
|
||||
it. Sun's BSD Source Compatability Mode is also a common culprit. Make
|
||||
sure you aren't using either /usr/ucb/cc or any of the libraries in
|
||||
/usr/ucblib. Finally, make sure you are using the correct module. If there
|
||||
does not appear to be one appropriate for your computer, then top probably
|
||||
will not work on your system.
|
||||
|
||||
If after reading all of this file and checking everything you can you are
|
||||
still stuck, then send mail to "wnl@groupsys.com". I will answer your mail
|
||||
when I have time. Please bear with me in that regard! If it looks like the
|
||||
problem is machine-specific, I will forward the report along to the module's
|
||||
author. If you would like to converse directly with the module author, the
|
||||
authors' names are listed at the beginning of the module .c file in the
|
||||
"machine" directory.
|
||||
165
contrib/top/INSTALL
Normal file
165
contrib/top/INSTALL
Normal file
@ -0,0 +1,165 @@
|
||||
TOP
|
||||
Version 3.4
|
||||
|
||||
William LeFebvre
|
||||
and a cast of dozens
|
||||
|
||||
INSTALLATION
|
||||
|
||||
Configuration and installation of top is very straightforward. After
|
||||
unpacking the sources, run the script "Configure". It will present you
|
||||
with a series of questions, all of which should be explained in the
|
||||
presentation. After you have answered all the questions, "Configure" will
|
||||
perform all the necessary configuration. Once this is finished, type
|
||||
"make install". Make will compile the sources then install the resulting
|
||||
executable and manual page in the appropriate places.
|
||||
|
||||
The most difficult step in the configuration is the choice of an
|
||||
appropriate machine-specific module. The Configure script gives you a
|
||||
list of choices complete with brief descriptions of when each choice is
|
||||
appropriate. Each module is contained in a separate c file in the
|
||||
directory "machine". The module contains all of the machine-specific code
|
||||
that makes top work correctly on the architecture in question. All of the
|
||||
code in the top-level directory is machine-independent (or at least
|
||||
strives to be). Hints for some module choices that are not obvious are
|
||||
given at the end of this file.
|
||||
|
||||
The first comment in each c file in that directory contains the synopsis
|
||||
AND a detailed description of the machines for which that module is
|
||||
appropriate. It also contains a list of authors for that module. If you
|
||||
are really stumped in this choice, use grep to find your machine
|
||||
manufacturer's name or operating system name in machine/*.c. If you still
|
||||
can't find one that is appropriate, then chances are very good that one
|
||||
hasn't been written yet. If that is the case, then you are out of luck.
|
||||
|
||||
HANDLING MULTIPLE ARCHITECTURES
|
||||
|
||||
If you need to recompile top for a different architecture (that is, using
|
||||
a different module) you need to reconfigure top. A short cut is available
|
||||
to make this a little easier. If all of your previous answers to the
|
||||
configuration questions (except for the module name of course) are
|
||||
adequate for the new architecture, then you can just use the command
|
||||
"Configure <modulename>". The configuration script will reconfigure top
|
||||
using the new module and all the answers you gave last time. It will
|
||||
finish with a "make clean". Once that completes, type "make install"
|
||||
and make will compile the sources and do the installation.
|
||||
|
||||
HANDLING MULTIPLE OS VERSIONS
|
||||
|
||||
By far the most frequently received bug report for top is something like
|
||||
this: "We just upgraded our operating system to version 99.9.9.9 and top
|
||||
broke. What should we do?" The simple answer is "recompile".
|
||||
|
||||
Top is very sensitive to changes in internal kernel data structures
|
||||
(especially the proc and user structures). Some operating systems
|
||||
(especially SunOS) are notorious for changing these structure in every
|
||||
minor release of the OS. This means that a top executable made under one
|
||||
version of the OS will not always work correctly (if even at all) under
|
||||
another version. This is just one of those tough facts of life. There is
|
||||
really no way around it.
|
||||
|
||||
To make life even worse, some operating systems (SunOS again) will use
|
||||
slightly different proc and user structures on different models. For
|
||||
example, "top" built on a SparcStation 2 will not run correctly on a
|
||||
SparcStation 10, even if they are both running SunOS 4.1.3. These
|
||||
unfortunate circumstances make maintaining top very difficult, especially
|
||||
in an environment that runs several different versions of the same
|
||||
operating system.
|
||||
|
||||
But there is hope. If your operating system has a properly functioning
|
||||
"uname" command then you can handle this problem rather gracefully.
|
||||
Included in the distribution is a shell file called "metatop". All this
|
||||
shell file does is:
|
||||
|
||||
exec top-`uname -m`-`uname -r` "$@"
|
||||
|
||||
So when you run this script, it execs a filename that is unique to your
|
||||
specific machine architecture and your OS revision number.
|
||||
|
||||
To use "metatop", do the following:
|
||||
|
||||
. on any machine, run Configure and choose the module that is
|
||||
appropriate for the machine
|
||||
. for all machines which use the same module:
|
||||
. group machines according to machine architecture AND OS
|
||||
revision number (i.e.: sun4-4.1.1, sun4c-4.1.1, sun4c-4.1.2,
|
||||
sun4-4.1.3, sun4c-4.1.3, sun4m-4.1.3, ...)
|
||||
. for each group, choose one machine from that group and on it
|
||||
run "make clean; make installmeta".
|
||||
|
||||
|
||||
The "installmeta" rule in the makefile will insure that top is compiled,
|
||||
install the shell file "metatop" as "top", then install the executable
|
||||
"top" with a name appropriate to the machine architecture and OS revision.
|
||||
|
||||
|
||||
HINTS FOR CHOOSING THE CORRECT MODULE:
|
||||
|
||||
SOLARIS 2.x
|
||||
|
||||
For Solaris versions 2.0 thru 2.3, use the module sunos5. For Solaris
|
||||
versions 2.4 and higher (including 2.5 and 2.5.1) use the module sunos54.
|
||||
|
||||
SUNOS 4.x AND MULTIPROCESSOR ARCHITECTURES
|
||||
|
||||
First, we need to be speaking the same language:
|
||||
|
||||
sun4 a regular sparc sun 4 architecture machine (sparc station 1,
|
||||
sparc station 2, IPC, SLC, etc.)
|
||||
|
||||
sun4m a multiprocessor sparc (Sparc 10, 4/670, 4/690)
|
||||
|
||||
I intended to write the sunos4 module so that an executable compiled on a
|
||||
sun4m machine would work correctly on a sun4 machine. Unfortunately my
|
||||
experiments indicate that this cannot be done. It turns out that the user
|
||||
structure is so different between these two architectures that nothing
|
||||
short of a serious hack will make the same executable work correctly on
|
||||
both machines. I recommend that you use the separate module "sunos4mp"
|
||||
when making an executable for a sun4m architecture, and use "sunos4" when
|
||||
making an executable for sun4 or sun4c architectures.
|
||||
|
||||
DIGITAL UNIX V4.0
|
||||
|
||||
This is the successor to DECOSF/1. Use the module decosf1.
|
||||
|
||||
SOLBOURNE OPERATING SYSTEM (OS/MP)
|
||||
|
||||
If you are running OS/MP version 4.1A, then use the module "osmp4.1a".
|
||||
|
||||
If you are running a version of OS/MP OLDER than 4.1A (that is, one
|
||||
of its predecessors), use the module "sunos4".
|
||||
|
||||
If you are running OS/MP 4.1B or LATER, use the module "sunos4mp".
|
||||
|
||||
HP/UX OPERATING SYSTEM
|
||||
|
||||
The module hpux8 works on all version 8 systems. Some say that it works
|
||||
with version 9 as well, but one user did send me a separate module for
|
||||
version 9. This module has only been tested on series 800 machines. I
|
||||
would recommend the following for those running version 9: try hpux9 and
|
||||
if it doesn't work then try hpux8. If neither work, then send mail to me
|
||||
and/or the modules' authors. Another note: we have a model 730 supposedly
|
||||
running version 9.01. The module hpux9 did not compile successfully, but
|
||||
the module hpux8 worked fine. The module hpux10 works on all revisions of
|
||||
HP/UX 10 except 10.10, where HP removed the definition of the proc structure
|
||||
from the system include files.
|
||||
|
||||
NET/2 386BSD SYSTEMS
|
||||
|
||||
If your version of the operating system has patchkit 2.4 installed,
|
||||
then you will need to modify machine/m_386bsd.c and uncomment the
|
||||
definition of PATCHED_KVM. This patchkit makes what more than a few
|
||||
people believe to be a wholly unnecessary patch to the way the kvm
|
||||
routines work.
|
||||
|
||||
A/UX SYSTEMS
|
||||
|
||||
There is a module for A/UX 3.0 and 3.1. Whether or not it works for
|
||||
any other version is not known. Proceed at your own risk.
|
||||
|
||||
Although AUX does not generally have a renice systemcall, it can be
|
||||
implemented by tweeking kernel memory. The flag IMPLEMENT_SETPRIORITY
|
||||
controls the inclusion of this code. It is off be default. While
|
||||
such a simple hack should not be difficult to get right, USE THIS
|
||||
FEATURE AT YOUR OWN RISK!
|
||||
|
||||
23
contrib/top/Make.desc.X
Normal file
23
contrib/top/Make.desc.X
Normal file
@ -0,0 +1,23 @@
|
||||
# Makefile for .desc files
|
||||
|
||||
# This makefile is the prototype for "Make.desc", which is used by
|
||||
# top's Configure script to build .desc files and the SYNOPSIS file.
|
||||
# Configure then uses these files to ask appropriate questions.
|
||||
|
||||
# Written by William LeFebvre, Argonne National Laboratory
|
||||
# (formerly of Northwestern University and Rice University)
|
||||
|
||||
# DO NOT EDIT "Make.desc"!!! Make changes to "Make.desc.X",
|
||||
# then "make veryclean", then run "Configure".
|
||||
|
||||
DESCS=%descs%
|
||||
|
||||
.SUFFIXES: .desc
|
||||
|
||||
.c.desc:
|
||||
sed -e '/^$$/,$$d' -e 's,^[/ *]*,,' $< > $@
|
||||
|
||||
all: SYNOPSIS
|
||||
|
||||
SYNOPSIS: $(DESCS)
|
||||
grep SYNOPSIS: $(DESCS) | sed -e 's@^machine/m_@@' -e 's@.desc:.[^:]*: *@:@' >SYNOPSIS
|
||||
130
contrib/top/Makefile.X
Normal file
130
contrib/top/Makefile.X
Normal file
@ -0,0 +1,130 @@
|
||||
# Makefile for "top", a top 10 process display for Unix
|
||||
#
|
||||
# This makefile is for top, version 3
|
||||
#
|
||||
# Written by William LeFebvre, Argonne National Laboratory
|
||||
# (formerly of Northwestern University and Rice University)
|
||||
|
||||
# DO NOT EDIT "Makefile"!!!! Make changes to "Makefile.X" and rerun
|
||||
# Configure.
|
||||
|
||||
# Executables (these should be obvious):
|
||||
|
||||
SHELL = %shell%
|
||||
CC = %cc%
|
||||
AWK = %awk%
|
||||
INSTALL = %install%
|
||||
|
||||
# installation information:
|
||||
# OWNER - name (or uid) for the installed executable's owner
|
||||
# GROUP - group name (or gid) for the installed executable's group
|
||||
# MODE - mode for the installed executable (should start with a 0)
|
||||
# BINDIR - directory where the executable should live
|
||||
# MANDIR - directory where the manual page should live
|
||||
# MANEXT - installed man pages end in .$(MANEXT)
|
||||
# MANSTY - "man" or "catman" depending on what's to be installed
|
||||
# SIGNAL - <signal.h> or <sys/signal.h>; the one with signal definitions
|
||||
# TROFF - most appropriate troff command
|
||||
|
||||
OWNER = %owner%
|
||||
GROUP = %group%
|
||||
MODE = %mode%
|
||||
BINDIR = %bindir%
|
||||
MANDIR = %mandir%
|
||||
MANEXT = %manext%
|
||||
MANSTY = %mansty%
|
||||
SIGNAL = %signal%
|
||||
|
||||
# Values for the two defaults in "top":
|
||||
# TOPN - default number of processes to display
|
||||
# DELAY - default delay between updates
|
||||
#
|
||||
# set TOPN to -1 to indicate infinity (so that top will display as many
|
||||
# as the screen will hold).
|
||||
|
||||
TOPN = %topn%
|
||||
DELAY = %delay%
|
||||
|
||||
TARFILES = README INSTALL DISCLAIMER FAQ ADVERTISEMENT \
|
||||
Changes Configure Porting \
|
||||
Makefile.X Make.desc.X getans install \
|
||||
top.c commands.c display.c screen.c username.c \
|
||||
utils.c version.c getopt.c prime.c \
|
||||
boolean.h display.h layout.h loadavg.h screen.h \
|
||||
machine.h patchlevel.h top.h top.local.H os.h utils.h \
|
||||
sigconv.awk top.X m-template metatop \
|
||||
machine
|
||||
CFILES = top.c commands.c display.c screen.c username.c \
|
||||
utils.c version.c getopt.c machine.c
|
||||
OBJS = top.o commands.o display.o screen.o username.o \
|
||||
utils.o version.o getopt.o machine.o
|
||||
|
||||
CDEFS = %cdefs%
|
||||
LIBS = %libs%
|
||||
TERMCAP = %termcap%
|
||||
|
||||
CFLAGS = %cflgs% $(CDEFS)
|
||||
LINTFLAGS = -x $(CDEFS)
|
||||
|
||||
all: Makefile top.local.h top
|
||||
|
||||
Makefile: Makefile.X
|
||||
@echo 'You need to run the script "Configure" before running "make".'
|
||||
exit 10
|
||||
|
||||
top.local.h: top.local.H
|
||||
@echo 'You need to run the script "Configure" before running "make".'
|
||||
exit 10
|
||||
|
||||
top: $(OBJS)
|
||||
rm -f top
|
||||
$(CC) -o top $(OBJS) $(TERMCAP) -lm $(LIBS)
|
||||
|
||||
lint: sigdesc.h
|
||||
$(LINT) $(LINTFLAGS) $(CFILES)
|
||||
|
||||
# include file dependencies
|
||||
top.o: boolean.h display.h screen.h top.h top.local.h utils.h machine.h
|
||||
commands.o: boolean.h sigdesc.h utils.h
|
||||
display.o: boolean.h display.h layout.h screen.h top.h top.local.h utils.h
|
||||
machine.o: top.h machine.h utils.h
|
||||
screen.o: boolean.h screen.h
|
||||
utils.o: top.h
|
||||
version.o: top.h patchlevel.h
|
||||
username.o: top.local.h utils.h
|
||||
|
||||
# automatically built include file
|
||||
sigdesc.h: sigconv.awk $(SIGNAL)
|
||||
$(AWK) -f sigconv.awk $(SIGNAL) >sigdesc.h
|
||||
|
||||
tar:
|
||||
rm -f top.tar machine/*.desc machine/*~
|
||||
tar cvf top.tar $(TARFILES)
|
||||
|
||||
shar:
|
||||
rm -f top.shar* machine/*.desc
|
||||
makekit -ntop.shar. -t"Now read README and INSTALL, then run Configure" machine $(TARFILES)/*
|
||||
|
||||
clean:
|
||||
rm -f *.o top core core.* sigdesc.h
|
||||
|
||||
veryclean: clean
|
||||
rm -f Make.desc machine/*.desc .defaults top.tar SYNOPSIS Makefile top.local.h top.1 machine.c prime
|
||||
|
||||
install: top top.1 install-top install-$(MANSTY)
|
||||
|
||||
install-top:
|
||||
$(INSTALL) -o $(OWNER) -m $(MODE) -g $(GROUP) top $(BINDIR)
|
||||
|
||||
install-man:
|
||||
$(INSTALL) top.1 $(MANDIR)/top.$(MANEXT)
|
||||
|
||||
install-catman:
|
||||
tbl top.1 | nroff -man > $(MANDIR)/top.$(MANEXT)
|
||||
|
||||
installmeta: top top.1
|
||||
$(INSTALL) -o $(OWNER) -m 755 -g $(GROUP) metatop $(BINDIR)/top
|
||||
@echo $(INSTALL) -o $(OWNER) -m $(MODE) -g $(GROUP) top $(BINDIR)/top-`uname -m`-`uname -r`
|
||||
@$(INSTALL) -o $(OWNER) -m $(MODE) -g $(GROUP) \
|
||||
top $(BINDIR)/top-`uname -m`-`uname -r`
|
||||
$(INSTALL) top.1 $(MANDIR)/top.$(MANEXT)
|
||||
165
contrib/top/Porting
Normal file
165
contrib/top/Porting
Normal file
@ -0,0 +1,165 @@
|
||||
Instructions for porting top to other architectures.
|
||||
|
||||
This is still a preliminary document. Suggestions for improvement are
|
||||
most welcome.
|
||||
|
||||
My address is now "lefebvre@dis.anl.gov".
|
||||
|
||||
Before you embark on a port, please send me a mail message telling me
|
||||
what platform you are porting top to. There are three reasons for
|
||||
this: (1) I may already have a port, (2) module naming needs to be
|
||||
centralized, (3) I want to loosely track the various porting efforts.
|
||||
You do not need to wait for an "okay", but I do want to know that you
|
||||
are working on it. And of course, once it is finished, please send me
|
||||
the module files so that I can add them to the main distribution!
|
||||
|
||||
----------
|
||||
|
||||
There is one set of functions which extract all the information that
|
||||
top needs for display. These functions are collected in to one file.
|
||||
To make top work on a different architecture simply requires a
|
||||
different implementation of these functions. The functions for a
|
||||
given architecture "foo" are stored in a file called "m_foo.c". The
|
||||
Configure script looks for these files and lets the configurer choose
|
||||
one of them. This file is called a "module". The idea is that making
|
||||
top work on a different machine only requires one additional file and
|
||||
does not require changes to any existing files.
|
||||
|
||||
A module template is included in the distribution, called "m-template".
|
||||
To write your own module, it is a good idea to start with this template.
|
||||
If you architecture is similar to one for which a module already
|
||||
exists, then you can start with that module instead. If you do so,
|
||||
remember to change the "AUTHOR" section at the top!
|
||||
|
||||
The first comment in a module contains information which is extracted
|
||||
and used by Configure. This information is marked with words in all
|
||||
capitals (such as "SYNOPSIS:" and "LIBS:"). Go look at m-template: it
|
||||
is fairly self-explanatory. The text after "LIBS:" (on the same line)
|
||||
is extracted and included in the LIBS definition of the Makefile so
|
||||
that extra libraries which may be necessary on some machines (such as
|
||||
"-lkvm") can be specified in the module. The text after "CFLAGS:"
|
||||
(on the same line) is extracted and included as flags in the "CFLAGS"
|
||||
definition of the Makefile (thus in every compilation step). This is
|
||||
used for rare circumstances only: please don't abuse this hook.
|
||||
|
||||
Some operating systems have idiosyncrasies which will affect the form
|
||||
and/or content of the information top displays. You may wish to
|
||||
document such anomalies in the top man page. This can be done by adding
|
||||
a file called m_{modulename}.man (where {modulename} is replaced with
|
||||
the name of the module). Configure will automatically add this file to
|
||||
the end of the man page. See m_sunos4.man for an example.
|
||||
|
||||
A module is concerned with two structures:
|
||||
|
||||
The statics struct is filled in by machine_init. Each item is a
|
||||
pointer to a list of character pointers. The list is terminated
|
||||
with a null pointer.
|
||||
|
||||
struct statics
|
||||
{
|
||||
char **procstate_names; /* process state names */
|
||||
char **cpustate_names; /* cpu state names */
|
||||
char **memory_names; /* memory information names */
|
||||
};
|
||||
|
||||
The system_info struct is filled in by get_system_info and
|
||||
get_process_info.
|
||||
|
||||
struct system_info
|
||||
{
|
||||
int last_pid; /* last pid assigned (0 means non-sequential assignment) */
|
||||
double load_avg[NUM_AVERAGES]; /* see below */
|
||||
int p_total; /* total number of processes */
|
||||
int p_active; /* number of procs considered "active" */
|
||||
int *procstates; /* array of process state counters */
|
||||
int *cpustates; /* array of cpustate counters */
|
||||
int *memory; /* memory information */
|
||||
};
|
||||
|
||||
The last three pointers each point to an array of integers. The
|
||||
length of the array is determined by the length of the corresponding
|
||||
_names array in the statics structure. Furthermore, if an entry in a
|
||||
_names array is the empty string ("") then the corresponding value in
|
||||
the value array will be skipped over. The display routine displays,
|
||||
for example, the string procstate_names[0] then the number
|
||||
procstates[0], then procstate_names[1], procstates[1], etc. until
|
||||
procstate_names[N] == NULL. This allows for a tremendous amount of
|
||||
flexibility in labeling the displayed values.
|
||||
|
||||
"procstates" and "memory" are displayed as straight integer values.
|
||||
Values in "cpustates" are displayed as a percentage * 10. For
|
||||
example, the (integer) value 105 is displayed as 10.5%.
|
||||
|
||||
These routines must be defined by the machine dependent module.
|
||||
|
||||
int machine_init(struct statics *)
|
||||
|
||||
returns 0 on success and -1 on failure,
|
||||
prints error messages
|
||||
|
||||
char *format_header(char *)
|
||||
|
||||
Returns a string which should be used as the header for the
|
||||
process display area. The argument is a string used to label
|
||||
the username column (either "USERNAME" or "UID") and is always
|
||||
8 characters in length.
|
||||
|
||||
void get_system_info(struct system_info *)
|
||||
|
||||
caddr_t get_process_info(struct system_info *, int, int, int (*func)())
|
||||
|
||||
returns a handle to use with format_next_process
|
||||
|
||||
char *format_next_process(caddr_t, char *(*func)())
|
||||
|
||||
returns string which describes next process
|
||||
|
||||
int proc_compare(caddr_t, caddr_t)
|
||||
|
||||
qsort comparison function
|
||||
|
||||
uid_t proc_owner(pid_t)
|
||||
|
||||
Returns the uid owner of the process specified by the pid argument.
|
||||
This function is VERY IMPORTANT. If it fails to do its job, then
|
||||
top may pose a security risk.
|
||||
|
||||
|
||||
get_process_info is called immediately after get_system_info. In
|
||||
fact, the two functions could be rolled in to one. The reason they
|
||||
are not is mostly historical.
|
||||
|
||||
Top relies on the existence of a function called "setpriority" to
|
||||
change a process's priority. This exists as a kernel call on most 4.3
|
||||
BSD derived Unixes. If neither your operating system nor your C
|
||||
library supplies such a function, then you will need to add one to the
|
||||
module. It is defined as follows:
|
||||
|
||||
int setpriority (int dummy, int who, int niceval)
|
||||
|
||||
For the purposes of top, the first argument is meaningless.
|
||||
The second is the pid and the third is the new nice value.
|
||||
This function should behave just like a kernel call, setting
|
||||
errno and returning -1 in case of an error. This function MUST
|
||||
check to make sure that a non-root user does not specify a nice
|
||||
value less than the process's current value. If it detects such
|
||||
a condition, it should set errno to EACCES and return -1.
|
||||
Other possible ERRNO values: ESRCH when pid "who" does not exist,
|
||||
EPERM when the invoker is not root and not the same as the
|
||||
process owner.
|
||||
|
||||
Note that top checks process ownership and should never call setpriority
|
||||
when the invoker's uid is not root and not the same as the process's owner
|
||||
uid.
|
||||
|
||||
|
||||
The file "machine.h" contains definitions which are useful to modules
|
||||
and to top.c (such as the structure definitions). You SHOULD NOT need
|
||||
to change it when porting to a new platform.
|
||||
|
||||
Porting to a new platform should NOT require any changes to existing
|
||||
files. You should only need to add m_ files. If you feel you need a
|
||||
change in one of the existing files, please contact me so that we can
|
||||
discuss the details. I want to keep such changes as general as
|
||||
possible.
|
||||
|
||||
178
contrib/top/README
Normal file
178
contrib/top/README
Normal file
@ -0,0 +1,178 @@
|
||||
TOP
|
||||
Version 3.4
|
||||
|
||||
William LeFebvre
|
||||
and a cast of dozens
|
||||
|
||||
|
||||
If you do not want to read this entire file, then at least read
|
||||
the section at the end entitled "KNOWN PROBLEMS".
|
||||
|
||||
If you are having any problems getting top to work, please read the
|
||||
file "FAQ" *before* contacting me. Thank you.
|
||||
|
||||
"top" is a program that will give continual reports about the state of
|
||||
the system, including a list of the top cpu using processes. Version 3
|
||||
of "top" has three primary design goals: provide an accurate snapshot of
|
||||
the system and process state, not be one of the top processes itself, be
|
||||
as portable as possible.
|
||||
|
||||
Version 3 has many bug fixes from version 2.5, and it has also been
|
||||
reorganized in a major way to make it easy to port to other platforms.
|
||||
All system dependent code is now contained in one file.
|
||||
|
||||
Top now includes a configuration script called "Configure". It helps
|
||||
the installer choose the correct parameters for this particular
|
||||
installation. This script MUST be run before attempting to compile top.
|
||||
|
||||
Top requires read access to the memory files "/dev/kmem" and "/dev/mem"
|
||||
as well as the system image "/vmunix". Some installations have these
|
||||
files protected from general access. These sites would have to install
|
||||
this program in the same way that programs such as "ps" are installed.
|
||||
In addition, on those Unix variants that support the proc filesystem
|
||||
(such as SVR4 and Solaris 2), top requires read access to all the files
|
||||
in /proc: typically dictating that top be installed setuid to root.
|
||||
|
||||
CAVEAT: version 3 of top has internal commands that kill and renice
|
||||
processes. Although I have taken steps to insure that top makes
|
||||
appropriate checks with these commands, I cannot guarantee that these
|
||||
internal commands are totally secure. IF YOU INSTALL top as a SETUID
|
||||
program, you do so AT YOUR OWN RISK! I realize that some operating
|
||||
systems will require top to run setuid, and I will do everything I can
|
||||
to make sure that top is a secure setuid program.
|
||||
|
||||
Configure will ask you to input values for certain parameters. Before
|
||||
each parameter, Configure will display a description of what the
|
||||
parameter does. Read the description and choose an appropriate value.
|
||||
Sometimes a default will appear in brackets. Typing just return will
|
||||
choose the default.
|
||||
|
||||
System support now takes the form of "modules". Adding support for
|
||||
a different architecture requires only adding a module. Configure
|
||||
asks which module to use when it is configuring top. See the file
|
||||
"Porting" for a description of how to write your own module.
|
||||
|
||||
To compile and install "top", read the file "INSTALL" and follow the
|
||||
directions and advice contained therein.
|
||||
|
||||
Once you have created a binary for one particular type of machine, you
|
||||
can reconfigure for another type with "./Configure modulename" where
|
||||
"modulename" is replaced with the appropriate module name. All other
|
||||
parameter values are kept the same. Note that in some cases this may
|
||||
not be appropriate.
|
||||
|
||||
If you make any kind of change to "top" that you feel would be
|
||||
beneficial to others who use this program, or if you find and fix a bug,
|
||||
please send me the change.
|
||||
|
||||
Be sure to read the FAQ enclosed with the distrubution. It contains
|
||||
answers to the most commonly asked questions about the configuration,
|
||||
installation, and operation of top.
|
||||
|
||||
AVAILABILITY
|
||||
|
||||
The latest version of "top" is now being made available via anonymous
|
||||
FTP from the host "ftp.groupsys.com" in the directory "/pub/top".
|
||||
Additional modules will be made available in the directory
|
||||
"/pub/top/m". The site "eecs.nwu.edu" will continue to house copies
|
||||
of the distribution as well.
|
||||
|
||||
Here are HTML links for the two best "top" archive sites:
|
||||
|
||||
<A HREF="ftp://ftp.groupsys.com/pub/top>Top archive (groupsys.com)</A>
|
||||
<A HREF="ftp://eecs.nwu.edu/pub/top>Top archive (eecs.nwu.edu)</A>
|
||||
|
||||
New releases will be posted to comp.sources.unix as they become
|
||||
available. Sites which arhive that newsgroup will also contain copies
|
||||
of the distribution.
|
||||
|
||||
KNOWN PROBLEMS:
|
||||
|
||||
Gnu CC
|
||||
|
||||
Compiling via Gnu CC continued to be the source of most of the
|
||||
questions I receive. By far the most common mistake made by those
|
||||
attempting to compile top with Gnu CC is out of date include files.
|
||||
When the operating system is upgraded, the include files that are part
|
||||
of the gcc package MUST also be updated. Gcc maintains its own
|
||||
include files. Even a minor OS upgrade can involve changes to some of
|
||||
the kernel's internal data structures, which are defined in include
|
||||
files in "sys". Top is very sensitive to these changes. If you are
|
||||
compiling with gcc and experience any sort of strange problems, please
|
||||
make sure the include files you are using are up to date BEFORE
|
||||
sending me a bug report. Look in the gcc source distribution for the
|
||||
shell script "fixincludes".
|
||||
|
||||
HP/UX 10.10
|
||||
|
||||
In their infinite wisdom, the folks at HP have decided that mere mortals
|
||||
such as you and I don't need to know what the kernel's proc structure looks
|
||||
like. To that end, they have removed all useful content from the include
|
||||
file <sys/proc.h> in version 10.10. As a result, top will not compile
|
||||
under 10.10. What HP is trying to accomplish with this move is to force
|
||||
iconoclasts such as myself to use "pstat" for collecting all process
|
||||
information. I have no immediate solution for this problem, but hope to
|
||||
obtain a sufficiently complete definition of "struct proc" at some point in
|
||||
the near future. Stay tuned.
|
||||
|
||||
DIGITAL UNIX 4.0 (DECOSF/1 V4.0)
|
||||
|
||||
A user has reported that idle processes are not displayed regardless
|
||||
of the flags used when invoking top. We have not had time to track
|
||||
this problem down.
|
||||
|
||||
DECOSF/1 V3.0
|
||||
|
||||
There is a bug either in the module, in utils.c, or in DEC's optimizer that
|
||||
is tickled by the decosf1 module when compiled under V3.0 (and perhaps
|
||||
earlier versions). Top compiled using DEC's compiler with optimization
|
||||
will consistently produce a segmentation fault (in format_next_process
|
||||
while calling sprintf). To work around this problem, either compile top
|
||||
with gcc or turn off optimization (compile without -O). We think that
|
||||
one of the bugs fixed in utils.c fixed this problem as well, but we are
|
||||
not certain.
|
||||
|
||||
|
||||
System V R 4.2
|
||||
|
||||
Load average and memory displays do not work. The problem has been
|
||||
traced down to a potential bug in the "mem" driver. The author
|
||||
of the svr42 module is working on a fix.
|
||||
|
||||
|
||||
|
||||
GRATITUDE
|
||||
|
||||
My perpetual thanks to all the people who have helped me support top
|
||||
on so many platforms. Without these people, top would not be what it
|
||||
is. Here is a partial list of contributors and other individuals.
|
||||
|
||||
Robert Boucher <boucher@sofkin.ca>
|
||||
Marc Cohen <marc@aai.com>
|
||||
David Cutter <dpc@grail.com>
|
||||
Casper Dik <casper@fwi.uva.nl>
|
||||
Charles Hedrick <hedrick@geneva.rutgers.edu>
|
||||
Andrew Herbert <andrew@werple.apana.org.au>
|
||||
Jeff Janvrin <jeff.janvrin@columbiasc.ncr.com>
|
||||
Torsten Kasch <torsten@techfak.uni-bielefeld.de>
|
||||
Petri Kutvonen <kutvonen@cs.helsinki.fi>
|
||||
William L. Jones <jones@chpc>
|
||||
Tim Pugh <tpugh@oce.orst.edu>
|
||||
Steve Scherf <scherf@swdc.stratus.com>
|
||||
Phillip Wu <pwu01@qantek.com.au>
|
||||
|
||||
(My apologies if I missed anyone.)
|
||||
|
||||
|
||||
AUTHOR
|
||||
|
||||
William LeFebvre
|
||||
Group sys Consulting
|
||||
wnl@groupsys.com
|
||||
|
||||
|
||||
U.S. Mail address:
|
||||
William LeFebvre
|
||||
170 Colton Crest Drive
|
||||
Alpharetta, GA 30202
|
||||
(770) 813-3224
|
||||
5
contrib/top/boolean.h
Normal file
5
contrib/top/boolean.h
Normal file
@ -0,0 +1,5 @@
|
||||
/* My favorite names for boolean values */
|
||||
#define No 0
|
||||
#define Yes 1
|
||||
#define Maybe 2 /* tri-state boolean, actually */
|
||||
|
||||
509
contrib/top/commands.c
Normal file
509
contrib/top/commands.c
Normal file
@ -0,0 +1,509 @@
|
||||
/*
|
||||
* Top users/processes display for Unix
|
||||
* Version 3
|
||||
*
|
||||
* This program may be freely redistributed,
|
||||
* but this entire comment MUST remain intact.
|
||||
*
|
||||
* Copyright (c) 1984, 1989, William LeFebvre, Rice University
|
||||
* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file contains the routines that implement some of the interactive
|
||||
* mode commands. Note that some of the commands are implemented in-line
|
||||
* in "main". This is necessary because they change the global state of
|
||||
* "top" (i.e.: changing the number of processes to display).
|
||||
*/
|
||||
|
||||
#include "os.h"
|
||||
#include <ctype.h>
|
||||
#include <signal.h>
|
||||
#include <errno.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/resource.h>
|
||||
|
||||
#include "sigdesc.h" /* generated automatically */
|
||||
#include "boolean.h"
|
||||
#include "utils.h"
|
||||
|
||||
extern int errno;
|
||||
|
||||
extern char *copyright;
|
||||
|
||||
/* imported from screen.c */
|
||||
extern int overstrike;
|
||||
|
||||
int err_compar();
|
||||
char *err_string();
|
||||
|
||||
/*
|
||||
* show_help() - display the help screen; invoked in response to
|
||||
* either 'h' or '?'.
|
||||
*/
|
||||
|
||||
show_help()
|
||||
|
||||
{
|
||||
printf("Top version %s, %s\n", version_string(), copyright);
|
||||
fputs("\n\n\
|
||||
A top users display for Unix\n\
|
||||
\n\
|
||||
These single-character commands are available:\n\
|
||||
\n\
|
||||
^L - redraw screen\n\
|
||||
q - quit\n\
|
||||
h or ? - help; show this text\n", stdout);
|
||||
|
||||
/* not all commands are availalbe with overstrike terminals */
|
||||
if (overstrike)
|
||||
{
|
||||
fputs("\n\
|
||||
Other commands are also available, but this terminal is not\n\
|
||||
sophisticated enough to handle those commands gracefully.\n\n", stdout);
|
||||
}
|
||||
else
|
||||
{
|
||||
fputs("\
|
||||
d - change number of displays to show\n\
|
||||
e - list errors generated by last \"kill\" or \"renice\" command\n\
|
||||
i - toggle the displaying of idle processes\n\
|
||||
I - same as 'i'\n\
|
||||
k - kill processes; send a signal to a list of processes\n\
|
||||
n or # - change number of processes to display\n", stdout);
|
||||
#ifdef ORDER
|
||||
fputs("\
|
||||
o - specify sort order (size, res, cpu, time)\n", stdout);
|
||||
#endif
|
||||
fputs("\
|
||||
r - renice a process\n\
|
||||
s - change number of seconds to delay between updates\n\
|
||||
u - display processes for only one user (+ selects all users)\n\
|
||||
\n\
|
||||
\n", stdout);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Utility routines that help with some of the commands.
|
||||
*/
|
||||
|
||||
char *next_field(str)
|
||||
|
||||
register char *str;
|
||||
|
||||
{
|
||||
if ((str = strchr(str, ' ')) == NULL)
|
||||
{
|
||||
return(NULL);
|
||||
}
|
||||
*str = '\0';
|
||||
while (*++str == ' ') /* loop */;
|
||||
|
||||
/* if there is nothing left of the string, return NULL */
|
||||
/* This fix is dedicated to Greg Earle */
|
||||
return(*str == '\0' ? NULL : str);
|
||||
}
|
||||
|
||||
scanint(str, intp)
|
||||
|
||||
char *str;
|
||||
int *intp;
|
||||
|
||||
{
|
||||
register int val = 0;
|
||||
register char ch;
|
||||
|
||||
/* if there is nothing left of the string, flag it as an error */
|
||||
/* This fix is dedicated to Greg Earle */
|
||||
if (*str == '\0')
|
||||
{
|
||||
return(-1);
|
||||
}
|
||||
|
||||
while ((ch = *str++) != '\0')
|
||||
{
|
||||
if (isdigit(ch))
|
||||
{
|
||||
val = val * 10 + (ch - '0');
|
||||
}
|
||||
else if (isspace(ch))
|
||||
{
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
return(-1);
|
||||
}
|
||||
}
|
||||
*intp = val;
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Some of the commands make system calls that could generate errors.
|
||||
* These errors are collected up in an array of structures for later
|
||||
* contemplation and display. Such routines return a string containing an
|
||||
* error message, or NULL if no errors occurred. The next few routines are
|
||||
* for manipulating and displaying these errors. We need an upper limit on
|
||||
* the number of errors, so we arbitrarily choose 20.
|
||||
*/
|
||||
|
||||
#define ERRMAX 20
|
||||
|
||||
struct errs /* structure for a system-call error */
|
||||
{
|
||||
int errno; /* value of errno (that is, the actual error) */
|
||||
char *arg; /* argument that caused the error */
|
||||
};
|
||||
|
||||
static struct errs errs[ERRMAX];
|
||||
static int errcnt;
|
||||
static char *err_toomany = " too many errors occurred";
|
||||
static char *err_listem =
|
||||
" Many errors occurred. Press `e' to display the list of errors.";
|
||||
|
||||
/* These macros get used to reset and log the errors */
|
||||
#define ERR_RESET errcnt = 0
|
||||
#define ERROR(p, e) if (errcnt >= ERRMAX) \
|
||||
{ \
|
||||
return(err_toomany); \
|
||||
} \
|
||||
else \
|
||||
{ \
|
||||
errs[errcnt].arg = (p); \
|
||||
errs[errcnt++].errno = (e); \
|
||||
}
|
||||
|
||||
/*
|
||||
* err_string() - return an appropriate error string. This is what the
|
||||
* command will return for displaying. If no errors were logged, then
|
||||
* return NULL. The maximum length of the error string is defined by
|
||||
* "STRMAX".
|
||||
*/
|
||||
|
||||
#define STRMAX 80
|
||||
|
||||
char *err_string()
|
||||
|
||||
{
|
||||
register struct errs *errp;
|
||||
register int cnt = 0;
|
||||
register int first = Yes;
|
||||
register int currerr = -1;
|
||||
int stringlen; /* characters still available in "string" */
|
||||
static char string[STRMAX];
|
||||
|
||||
/* if there are no errors, return NULL */
|
||||
if (errcnt == 0)
|
||||
{
|
||||
return(NULL);
|
||||
}
|
||||
|
||||
/* sort the errors */
|
||||
qsort((char *)errs, errcnt, sizeof(struct errs), err_compar);
|
||||
|
||||
/* need a space at the front of the error string */
|
||||
string[0] = ' ';
|
||||
string[1] = '\0';
|
||||
stringlen = STRMAX - 2;
|
||||
|
||||
/* loop thru the sorted list, building an error string */
|
||||
while (cnt < errcnt)
|
||||
{
|
||||
errp = &(errs[cnt++]);
|
||||
if (errp->errno != currerr)
|
||||
{
|
||||
if (currerr != -1)
|
||||
{
|
||||
if ((stringlen = str_adderr(string, stringlen, currerr)) < 2)
|
||||
{
|
||||
return(err_listem);
|
||||
}
|
||||
(void) strcat(string, "; "); /* we know there's more */
|
||||
}
|
||||
currerr = errp->errno;
|
||||
first = Yes;
|
||||
}
|
||||
if ((stringlen = str_addarg(string, stringlen, errp->arg, first)) ==0)
|
||||
{
|
||||
return(err_listem);
|
||||
}
|
||||
first = No;
|
||||
}
|
||||
|
||||
/* add final message */
|
||||
stringlen = str_adderr(string, stringlen, currerr);
|
||||
|
||||
/* return the error string */
|
||||
return(stringlen == 0 ? err_listem : string);
|
||||
}
|
||||
|
||||
/*
|
||||
* str_adderr(str, len, err) - add an explanation of error "err" to
|
||||
* the string "str".
|
||||
*/
|
||||
|
||||
str_adderr(str, len, err)
|
||||
|
||||
char *str;
|
||||
int len;
|
||||
int err;
|
||||
|
||||
{
|
||||
register char *msg;
|
||||
register int msglen;
|
||||
|
||||
msg = err == 0 ? "Not a number" : errmsg(err);
|
||||
msglen = strlen(msg) + 2;
|
||||
if (len <= msglen)
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
(void) strcat(str, ": ");
|
||||
(void) strcat(str, msg);
|
||||
return(len - msglen);
|
||||
}
|
||||
|
||||
/*
|
||||
* str_addarg(str, len, arg, first) - add the string argument "arg" to
|
||||
* the string "str". This is the first in the group when "first"
|
||||
* is set (indicating that a comma should NOT be added to the front).
|
||||
*/
|
||||
|
||||
str_addarg(str, len, arg, first)
|
||||
|
||||
char *str;
|
||||
int len;
|
||||
char *arg;
|
||||
int first;
|
||||
|
||||
{
|
||||
register int arglen;
|
||||
|
||||
arglen = strlen(arg);
|
||||
if (!first)
|
||||
{
|
||||
arglen += 2;
|
||||
}
|
||||
if (len <= arglen)
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
if (!first)
|
||||
{
|
||||
(void) strcat(str, ", ");
|
||||
}
|
||||
(void) strcat(str, arg);
|
||||
return(len - arglen);
|
||||
}
|
||||
|
||||
/*
|
||||
* err_compar(p1, p2) - comparison routine used by "qsort"
|
||||
* for sorting errors.
|
||||
*/
|
||||
|
||||
err_compar(p1, p2)
|
||||
|
||||
register struct errs *p1, *p2;
|
||||
|
||||
{
|
||||
register int result;
|
||||
|
||||
if ((result = p1->errno - p2->errno) == 0)
|
||||
{
|
||||
return(strcmp(p1->arg, p2->arg));
|
||||
}
|
||||
return(result);
|
||||
}
|
||||
|
||||
/*
|
||||
* error_count() - return the number of errors currently logged.
|
||||
*/
|
||||
|
||||
error_count()
|
||||
|
||||
{
|
||||
return(errcnt);
|
||||
}
|
||||
|
||||
/*
|
||||
* show_errors() - display on stdout the current log of errors.
|
||||
*/
|
||||
|
||||
show_errors()
|
||||
|
||||
{
|
||||
register int cnt = 0;
|
||||
register struct errs *errp = errs;
|
||||
|
||||
printf("%d error%s:\n\n", errcnt, errcnt == 1 ? "" : "s");
|
||||
while (cnt++ < errcnt)
|
||||
{
|
||||
printf("%5s: %s\n", errp->arg,
|
||||
errp->errno == 0 ? "Not a number" : errmsg(errp->errno));
|
||||
errp++;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* kill_procs(str) - send signals to processes, much like the "kill"
|
||||
* command does; invoked in response to 'k'.
|
||||
*/
|
||||
|
||||
char *kill_procs(str)
|
||||
|
||||
char *str;
|
||||
|
||||
{
|
||||
register char *nptr;
|
||||
int signum = SIGTERM; /* default */
|
||||
int procnum;
|
||||
struct sigdesc *sigp;
|
||||
int uid;
|
||||
|
||||
/* reset error array */
|
||||
ERR_RESET;
|
||||
|
||||
/* remember our uid */
|
||||
uid = getuid();
|
||||
|
||||
/* skip over leading white space */
|
||||
while (isspace(*str)) str++;
|
||||
|
||||
if (str[0] == '-')
|
||||
{
|
||||
/* explicit signal specified */
|
||||
if ((nptr = next_field(str)) == NULL)
|
||||
{
|
||||
return(" kill: no processes specified");
|
||||
}
|
||||
|
||||
if (isdigit(str[1]))
|
||||
{
|
||||
(void) scanint(str + 1, &signum);
|
||||
if (signum <= 0 || signum >= NSIG)
|
||||
{
|
||||
return(" invalid signal number");
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* translate the name into a number */
|
||||
for (sigp = sigdesc; sigp->name != NULL; sigp++)
|
||||
{
|
||||
if (strcmp(sigp->name, str + 1) == 0)
|
||||
{
|
||||
signum = sigp->number;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* was it ever found */
|
||||
if (sigp->name == NULL)
|
||||
{
|
||||
return(" bad signal name");
|
||||
}
|
||||
}
|
||||
/* put the new pointer in place */
|
||||
str = nptr;
|
||||
}
|
||||
|
||||
/* loop thru the string, killing processes */
|
||||
do
|
||||
{
|
||||
if (scanint(str, &procnum) == -1)
|
||||
{
|
||||
ERROR(str, 0);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* check process owner if we're not root */
|
||||
if (uid && (uid != proc_owner(procnum)))
|
||||
{
|
||||
ERROR(str, EACCES);
|
||||
}
|
||||
/* go in for the kill */
|
||||
else if (kill(procnum, signum) == -1)
|
||||
{
|
||||
/* chalk up an error */
|
||||
ERROR(str, errno);
|
||||
}
|
||||
}
|
||||
} while ((str = next_field(str)) != NULL);
|
||||
|
||||
/* return appropriate error string */
|
||||
return(err_string());
|
||||
}
|
||||
|
||||
/*
|
||||
* renice_procs(str) - change the "nice" of processes, much like the
|
||||
* "renice" command does; invoked in response to 'r'.
|
||||
*/
|
||||
|
||||
char *renice_procs(str)
|
||||
|
||||
char *str;
|
||||
|
||||
{
|
||||
register char negate;
|
||||
int prio;
|
||||
int procnum;
|
||||
int uid;
|
||||
|
||||
ERR_RESET;
|
||||
uid = getuid();
|
||||
|
||||
/* allow for negative priority values */
|
||||
if ((negate = (*str == '-')) != 0)
|
||||
{
|
||||
/* move past the minus sign */
|
||||
str++;
|
||||
}
|
||||
|
||||
/* use procnum as a temporary holding place and get the number */
|
||||
procnum = scanint(str, &prio);
|
||||
|
||||
/* negate if necessary */
|
||||
if (negate)
|
||||
{
|
||||
prio = -prio;
|
||||
}
|
||||
|
||||
#if defined(PRIO_MIN) && defined(PRIO_MAX)
|
||||
/* check for validity */
|
||||
if (procnum == -1 || prio < PRIO_MIN || prio > PRIO_MAX)
|
||||
{
|
||||
return(" bad priority value");
|
||||
}
|
||||
#endif
|
||||
|
||||
/* move to the first process number */
|
||||
if ((str = next_field(str)) == NULL)
|
||||
{
|
||||
return(" no processes specified");
|
||||
}
|
||||
|
||||
/* loop thru the process numbers, renicing each one */
|
||||
do
|
||||
{
|
||||
if (scanint(str, &procnum) == -1)
|
||||
{
|
||||
ERROR(str, 0);
|
||||
}
|
||||
|
||||
/* check process owner if we're not root */
|
||||
else if (uid && (uid != proc_owner(procnum)))
|
||||
{
|
||||
ERROR(str, EACCES);
|
||||
}
|
||||
else if (setpriority(PRIO_PROCESS, procnum, prio) == -1)
|
||||
{
|
||||
ERROR(str, errno);
|
||||
}
|
||||
} while ((str = next_field(str)) != NULL);
|
||||
|
||||
/* return appropriate error string */
|
||||
return(err_string());
|
||||
}
|
||||
|
||||
1129
contrib/top/display.c
Normal file
1129
contrib/top/display.c
Normal file
File diff suppressed because it is too large
Load Diff
7
contrib/top/display.h
Normal file
7
contrib/top/display.h
Normal file
@ -0,0 +1,7 @@
|
||||
/* constants needed for display.c */
|
||||
|
||||
/* "type" argument for new_message function */
|
||||
|
||||
#define MT_standout 1
|
||||
#define MT_delayed 2
|
||||
|
||||
86
contrib/top/getans
Executable file
86
contrib/top/getans
Executable file
@ -0,0 +1,86 @@
|
||||
#!/bin/csh -f
|
||||
set ny = (no yes)
|
||||
if ($2 == "yesno") then
|
||||
@ i = $3 + 1
|
||||
set pmpt = "$1 [$ny[$i]]: "
|
||||
else
|
||||
if ("$3" == "") then
|
||||
set pmpt = "${1}"
|
||||
else
|
||||
set pmpt = "$1 [$3]: "
|
||||
endif
|
||||
endif
|
||||
rpt:
|
||||
echo -n "$pmpt"
|
||||
set input = $<
|
||||
switch ($2)
|
||||
case number:
|
||||
set tmp = `echo $input | tr -d 0123456789.`
|
||||
if ("x$tmp" != x) then
|
||||
echo "Invalid number. Please try again."
|
||||
goto rpt
|
||||
endif
|
||||
breaksw
|
||||
|
||||
case integer:
|
||||
set tmp = `echo $input | tr -d 0123456789`
|
||||
if ("x$tmp" != x) then
|
||||
echo "Invalid integer. Please try again."
|
||||
goto rpt
|
||||
endif
|
||||
breaksw
|
||||
|
||||
case neginteger:
|
||||
if ("x$input" != x-1) then
|
||||
set tmp = `echo $input | tr -d 0123456789`
|
||||
if ("x$tmp" != x) then
|
||||
echo "Invalid integer. Please try again."
|
||||
goto rpt
|
||||
endif
|
||||
endif
|
||||
breaksw
|
||||
|
||||
case file:
|
||||
if ("x$input" == "x") then
|
||||
set input = $3
|
||||
endif
|
||||
if (! -e "$input") then
|
||||
echo The file $input "does not exist. Please try again."
|
||||
goto rpt
|
||||
endif
|
||||
breaksw
|
||||
|
||||
case path:
|
||||
if ("x$input" == "x") then
|
||||
set input = "$3"
|
||||
endif
|
||||
if (! -e "$input") then
|
||||
foreach elt ($path)
|
||||
if (-e "$elt/$input") breaksw
|
||||
end
|
||||
echo The command $input "was not found. Please try again."
|
||||
goto rpt
|
||||
endif
|
||||
breaksw
|
||||
|
||||
case yesno:
|
||||
if ("x$input" == xy || "x$input" == xyes) then
|
||||
set input = 1
|
||||
else if ("x$input" == xn || "x$input" == xno) then
|
||||
set input = 0
|
||||
else if ("x$input" != x) then
|
||||
echo 'Please answer "yes" or "no".'
|
||||
goto rpt
|
||||
endif
|
||||
breaksw
|
||||
|
||||
default:
|
||||
breaksw
|
||||
|
||||
endsw
|
||||
|
||||
if ("x$input" == x) then
|
||||
set input = "$3"
|
||||
endif
|
||||
|
||||
echo $input > $4
|
||||
90
contrib/top/getopt.c
Normal file
90
contrib/top/getopt.c
Normal file
@ -0,0 +1,90 @@
|
||||
/*
|
||||
* "getopt" routine customized for top.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Many modern-day Unix implementations already have this function
|
||||
* in libc. The standard "getopt" is perfectly sufficient for top's
|
||||
* needs. If such a function exists in libc then you certainly don't
|
||||
* need to compile this one in. To prevent this function from being
|
||||
* compiled, define "HAVE_GETOPT". This is usually done in the "CFLAGS"
|
||||
* line of the corresponding machine module.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This empty declaration exists solely to placate overexhuberant C
|
||||
* compilers that like to warn you about content-free files.
|
||||
*/
|
||||
static void __empty();
|
||||
|
||||
#ifndef HAVE_GETOPT
|
||||
|
||||
/*LINTLIBRARY*/
|
||||
|
||||
#include "os.h"
|
||||
#ifndef NULL
|
||||
#define NULL 0
|
||||
#endif
|
||||
#ifndef EOF
|
||||
#define EOF (-1)
|
||||
#endif
|
||||
#define ERR(s, c) if(opterr){\
|
||||
extern int write();\
|
||||
char errbuf[2];\
|
||||
errbuf[0] = c; errbuf[1] = '\n';\
|
||||
(void) write(2, argv[0], strlen(argv[0]));\
|
||||
(void) write(2, s, strlen(s));\
|
||||
(void) write(2, errbuf, 2);}
|
||||
|
||||
|
||||
int opterr = 1;
|
||||
int optind = 1;
|
||||
int optopt;
|
||||
char *optarg;
|
||||
|
||||
int
|
||||
getopt(argc, argv, opts)
|
||||
int argc;
|
||||
char **argv, *opts;
|
||||
{
|
||||
static int sp = 1;
|
||||
register int c;
|
||||
register char *cp;
|
||||
|
||||
if(sp == 1)
|
||||
if(optind >= argc ||
|
||||
argv[optind][0] != '-' || argv[optind][1] == '\0')
|
||||
return(EOF);
|
||||
else if(strcmp(argv[optind], "--") == 0) {
|
||||
optind++;
|
||||
return(EOF);
|
||||
}
|
||||
optopt = c = argv[optind][sp];
|
||||
if(c == ':' || (cp=strchr(opts, c)) == NULL) {
|
||||
ERR(": unknown option, -", c);
|
||||
if(argv[optind][++sp] == '\0') {
|
||||
optind++;
|
||||
sp = 1;
|
||||
}
|
||||
return('?');
|
||||
}
|
||||
if(*++cp == ':') {
|
||||
if(argv[optind][sp+1] != '\0')
|
||||
optarg = &argv[optind++][sp+1];
|
||||
else if(++optind >= argc) {
|
||||
ERR(": argument missing for -", c);
|
||||
sp = 1;
|
||||
return('?');
|
||||
} else
|
||||
optarg = argv[optind++];
|
||||
sp = 1;
|
||||
} else {
|
||||
if(argv[optind][++sp] == '\0') {
|
||||
sp = 1;
|
||||
optind++;
|
||||
}
|
||||
optarg = NULL;
|
||||
}
|
||||
return(c);
|
||||
}
|
||||
#endif /* HAVE_GETOPT */
|
||||
69
contrib/top/install
Executable file
69
contrib/top/install
Executable file
@ -0,0 +1,69 @@
|
||||
#!/bin/sh
|
||||
#
|
||||
# this shell script is amazingly similar to the old and lamented
|
||||
# BSD "install" command. It recognized the following options:
|
||||
#
|
||||
# -o target file owner
|
||||
# -m target file mode
|
||||
# -g target file group owner
|
||||
#
|
||||
#
|
||||
# scan the options
|
||||
#
|
||||
while [ $# -gt 0 ]; do
|
||||
case $1 in
|
||||
-o)
|
||||
owner=$2
|
||||
shift ; shift
|
||||
;;
|
||||
|
||||
-m)
|
||||
mode=$2
|
||||
shift; shift
|
||||
;;
|
||||
|
||||
-g)
|
||||
group=$2
|
||||
shift ; shift
|
||||
;;
|
||||
|
||||
-*)
|
||||
echo "install: unknown option $1"
|
||||
exit
|
||||
;;
|
||||
|
||||
*)
|
||||
break
|
||||
;;
|
||||
esac
|
||||
done
|
||||
#
|
||||
# we need two more: filename and destination
|
||||
#
|
||||
if [ $# -ne 2 ]; then
|
||||
echo "Usage: install [ -o owner ] [ -m mode ] [ -g group ] file destination"
|
||||
exit
|
||||
fi
|
||||
#
|
||||
# first, copy
|
||||
#
|
||||
cp $1 $2
|
||||
#
|
||||
# normalize the name
|
||||
#
|
||||
dest=$2
|
||||
if [ -d $2 ]; then
|
||||
dest=$2/`basename $1`
|
||||
fi
|
||||
#
|
||||
# do optional things
|
||||
#
|
||||
if [ "$owner" ]; then
|
||||
chown $owner $dest
|
||||
fi
|
||||
if [ "$group" ]; then
|
||||
chgrp $group $dest
|
||||
fi
|
||||
if [ "$mode" ]; then
|
||||
chmod $mode $dest
|
||||
fi
|
||||
27
contrib/top/layout.h
Normal file
27
contrib/top/layout.h
Normal file
@ -0,0 +1,27 @@
|
||||
/*
|
||||
* Top - a top users display for Berkeley Unix
|
||||
*
|
||||
* This file defines the locations on tne screen for various parts of the
|
||||
* display. These definitions are used by the routines in "display.c" for
|
||||
* cursor addressing.
|
||||
*/
|
||||
|
||||
#define x_lastpid 10
|
||||
#define y_lastpid 0
|
||||
#define x_loadave 33
|
||||
#define x_loadave_nompid 15
|
||||
#define y_loadave 0
|
||||
#define x_procstate 0
|
||||
#define y_procstate 1
|
||||
#define x_brkdn 15
|
||||
#define y_brkdn 1
|
||||
#define x_mem 8
|
||||
#define y_mem 3
|
||||
#define y_message 4
|
||||
#define x_header 0
|
||||
#define y_header 5
|
||||
#define x_idlecursor 0
|
||||
#define y_idlecursor 4
|
||||
#define y_procs 6
|
||||
|
||||
#define y_cpustates 2
|
||||
57
contrib/top/loadavg.h
Normal file
57
contrib/top/loadavg.h
Normal file
@ -0,0 +1,57 @@
|
||||
/*
|
||||
* Top - a top users display for Berkeley Unix
|
||||
*
|
||||
* Defines required to access load average figures.
|
||||
*
|
||||
* This include file sets up everything we need to access the load average
|
||||
* values in the kernel in a machine independent way. First, it sets the
|
||||
* typedef "load_avg" to be either double or long (depending on what is
|
||||
* needed), then it defines these macros appropriately:
|
||||
*
|
||||
* loaddouble(la) - convert load_avg to double.
|
||||
* intload(i) - convert integer to load_avg.
|
||||
*/
|
||||
|
||||
/*
|
||||
* We assume that if FSCALE is defined, then avenrun and ccpu are type long.
|
||||
* If your machine is an exception (mips, perhaps?) then make adjustments
|
||||
* here.
|
||||
*
|
||||
* Defined types: load_avg for load averages, pctcpu for cpu percentages.
|
||||
*/
|
||||
#if defined(mips) && !defined(NetBSD)
|
||||
# include <sys/fixpoint.h>
|
||||
# if defined(FBITS) && !defined(FSCALE)
|
||||
# define FSCALE (1 << FBITS) /* mips */
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef FSCALE
|
||||
# define FIXED_LOADAVG FSCALE
|
||||
# define FIXED_PCTCPU FSCALE
|
||||
#endif
|
||||
|
||||
#ifdef ibm032
|
||||
# undef FIXED_LOADAVG
|
||||
# undef FIXED_PCTCPU
|
||||
# define FIXED_PCTCPU PCT_SCALE
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef FIXED_PCTCPU
|
||||
typedef long pctcpu;
|
||||
# define pctdouble(p) ((double)(p) / FIXED_PCTCPU)
|
||||
#else
|
||||
typedef double pctcpu;
|
||||
# define pctdouble(p) (p)
|
||||
#endif
|
||||
|
||||
#ifdef FIXED_LOADAVG
|
||||
typedef long load_avg;
|
||||
# define loaddouble(la) ((double)(la) / FIXED_LOADAVG)
|
||||
# define intload(i) ((int)((i) * FIXED_LOADAVG))
|
||||
#else
|
||||
typedef double load_avg;
|
||||
# define loaddouble(la) (la)
|
||||
# define intload(i) ((double)(i))
|
||||
#endif
|
||||
241
contrib/top/m-template
Normal file
241
contrib/top/m-template
Normal file
@ -0,0 +1,241 @@
|
||||
/*
|
||||
* top - a top users display for Unix
|
||||
*
|
||||
* THIS IS A TEMPLATE FILE FOR A MACHINE DEPENDENT (m_...c) FILE
|
||||
*
|
||||
* SYNOPSIS: one line description of machine this module works with
|
||||
*
|
||||
* DESCRIPTION:
|
||||
* Detailed description of this machine dependent module.
|
||||
* It can be multiple lines, but a blank comment line (one with only an
|
||||
* asterisk) is considered to end it. Place here a complete list of
|
||||
* the machines and OS versions that this module works on.
|
||||
*
|
||||
* LIBS: list of special libraries to include at link step (REMOVE THIS LINE IF NOT NEEDED)
|
||||
*
|
||||
* AUTHOR: your name and <your@internet.address>
|
||||
*/
|
||||
|
||||
#include "top.h"
|
||||
#include "machine.h"
|
||||
|
||||
|
||||
/*
|
||||
* These definitions control the format of the per-process area
|
||||
*/
|
||||
|
||||
static char header[] =
|
||||
" PID X PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND";
|
||||
/* 0123456 -- field to fill in starts at header+6 */
|
||||
#define UNAME_START 6
|
||||
|
||||
#define Proc_format \
|
||||
"%5d %-8.8s %3d %4d%6dK %4dK %-5s%4d:%02d %5.2f%% %5.2f%% %.14s"
|
||||
|
||||
/* these are for detailing the process states */
|
||||
|
||||
int process_states[?];
|
||||
char *procstatenames[] = {
|
||||
"", " sleeping, ", " ABANDONED, ", " running, ", " starting, ",
|
||||
" zombie, ", " stopped, ",
|
||||
NULL
|
||||
};
|
||||
|
||||
/* these are for detailing the cpu states */
|
||||
|
||||
int cpu_states[?];
|
||||
char *cpustatenames[] = {
|
||||
"user", "nice", "system", "idle",
|
||||
NULL
|
||||
};
|
||||
|
||||
/* these are for detailing the memory statistics */
|
||||
|
||||
int memory_stats[?];
|
||||
char *memorynames[] = {
|
||||
"K available, ", "K in use, ", "K free, ", "K locked", NULL
|
||||
};
|
||||
|
||||
/* useful externals */
|
||||
extern int errno;
|
||||
extern char *sys_errlist[];
|
||||
|
||||
long lseek();
|
||||
long time();
|
||||
long percentages();
|
||||
|
||||
machine_init(statics)
|
||||
|
||||
struct statics *statics;
|
||||
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
|
||||
char *format_header(uname_field)
|
||||
|
||||
register char *uname_field;
|
||||
|
||||
{
|
||||
register char *ptr;
|
||||
|
||||
ptr = header + UNAME_START;
|
||||
while (*uname_field != '\0')
|
||||
{
|
||||
*ptr++ = *uname_field++;
|
||||
}
|
||||
|
||||
return(header);
|
||||
}
|
||||
|
||||
get_system_info(si)
|
||||
|
||||
struct system_info *si;
|
||||
|
||||
{
|
||||
}
|
||||
|
||||
static struct handle handle;
|
||||
|
||||
caddr_t get_process_info(si, sel, compare)
|
||||
|
||||
struct system_info *si;
|
||||
struct process_select *sel;
|
||||
int (*compare)();
|
||||
|
||||
{
|
||||
return((caddr_t)&handle);
|
||||
}
|
||||
|
||||
char fmt[128]; /* static area where result is built */
|
||||
|
||||
/* define what weighted cpu is. */
|
||||
#define weighted_cpu(pct, pp) ((pp)->p_time == 0 ? 0.0 : \
|
||||
((pct) / (1.0 - exp((pp)->p_time * logcpu))))
|
||||
|
||||
char *format_next_process(handle, get_userid)
|
||||
|
||||
caddr_t handle;
|
||||
char *(*get_userid)();
|
||||
|
||||
{
|
||||
return(fmt);
|
||||
}
|
||||
|
||||
/*
|
||||
* getkval(offset, ptr, size, refstr) - get a value out of the kernel.
|
||||
* "offset" is the byte offset into the kernel for the desired value,
|
||||
* "ptr" points to a buffer into which the value is retrieved,
|
||||
* "size" is the size of the buffer (and the object to retrieve),
|
||||
* "refstr" is a reference string used when printing error meessages,
|
||||
* if "refstr" starts with a '!', then a failure on read will not
|
||||
* be fatal (this may seem like a silly way to do things, but I
|
||||
* really didn't want the overhead of another argument).
|
||||
*
|
||||
*/
|
||||
|
||||
getkval(offset, ptr, size, refstr)
|
||||
|
||||
unsigned long offset;
|
||||
int *ptr;
|
||||
int size;
|
||||
char *refstr;
|
||||
|
||||
{
|
||||
if (kvm_read(kd, offset, ptr, size) != size)
|
||||
{
|
||||
if (*refstr == '!')
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "top: kvm_read for %s: %s\n",
|
||||
refstr, sys_errlist[errno]);
|
||||
quit(23);
|
||||
}
|
||||
}
|
||||
return(1);
|
||||
}
|
||||
|
||||
/* comparison routine for qsort */
|
||||
/* NOTE: this is specific to the BSD proc structure, but it should
|
||||
give you a good place to start. */
|
||||
|
||||
/*
|
||||
* proc_compare - comparison function for "qsort"
|
||||
* Compares the resource consumption of two processes using five
|
||||
* distinct keys. The keys (in descending order of importance) are:
|
||||
* percent cpu, cpu ticks, state, resident set size, total virtual
|
||||
* memory usage. The process states are ordered as follows (from least
|
||||
* to most important): WAIT, zombie, sleep, stop, start, run. The
|
||||
* array declaration below maps a process state index into a number
|
||||
* that reflects this ordering.
|
||||
*/
|
||||
|
||||
static unsigned char sorted_state[] =
|
||||
{
|
||||
0, /* not used */
|
||||
3, /* sleep */
|
||||
1, /* ABANDONED (WAIT) */
|
||||
6, /* run */
|
||||
5, /* start */
|
||||
2, /* zombie */
|
||||
4 /* stop */
|
||||
};
|
||||
|
||||
proc_compare(pp1, pp2)
|
||||
|
||||
struct proc **pp1;
|
||||
struct proc **pp2;
|
||||
|
||||
{
|
||||
register struct proc *p1;
|
||||
register struct proc *p2;
|
||||
register int result;
|
||||
register pctcpu lresult;
|
||||
|
||||
/* remove one level of indirection */
|
||||
p1 = *pp1;
|
||||
p2 = *pp2;
|
||||
|
||||
/* compare percent cpu (pctcpu) */
|
||||
if ((lresult = p2->p_pctcpu - p1->p_pctcpu) == 0)
|
||||
{
|
||||
/* use cpticks to break the tie */
|
||||
if ((result = p2->p_cpticks - p1->p_cpticks) == 0)
|
||||
{
|
||||
/* use process state to break the tie */
|
||||
if ((result = sorted_state[p2->p_stat] -
|
||||
sorted_state[p1->p_stat]) == 0)
|
||||
{
|
||||
/* use priority to break the tie */
|
||||
if ((result = p2->p_pri - p1->p_pri) == 0)
|
||||
{
|
||||
/* use resident set size (rssize) to break the tie */
|
||||
if ((result = p2->p_rssize - p1->p_rssize) == 0)
|
||||
{
|
||||
/* use total memory to break the tie */
|
||||
result = PROCSIZE(p2) - PROCSIZE(p1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
result = lresult < 0 ? -1 : 1;
|
||||
}
|
||||
|
||||
return(result);
|
||||
}
|
||||
|
||||
proc_owner(pid)
|
||||
|
||||
int pid;
|
||||
|
||||
{
|
||||
/* returns uid of owner of process pid */
|
||||
return(uid);
|
||||
}
|
||||
|
||||
58
contrib/top/machine.h
Normal file
58
contrib/top/machine.h
Normal file
@ -0,0 +1,58 @@
|
||||
/*
|
||||
* This file defines the interface between top and the machine-dependent
|
||||
* module. It is NOT machine dependent and should not need to be changed
|
||||
* for any specific machine.
|
||||
*/
|
||||
|
||||
/*
|
||||
* the statics struct is filled in by machine_init
|
||||
*/
|
||||
struct statics
|
||||
{
|
||||
char **procstate_names;
|
||||
char **cpustate_names;
|
||||
char **memory_names;
|
||||
#ifdef ORDER
|
||||
char **order_names;
|
||||
#endif
|
||||
};
|
||||
|
||||
/*
|
||||
* the system_info struct is filled in by a machine dependent routine.
|
||||
*/
|
||||
|
||||
struct system_info
|
||||
{
|
||||
int last_pid;
|
||||
double load_avg[NUM_AVERAGES];
|
||||
int p_total;
|
||||
int p_active; /* number of procs considered "active" */
|
||||
int *procstates;
|
||||
int *cpustates;
|
||||
int *memory;
|
||||
};
|
||||
|
||||
/* cpu_states is an array of percentages * 10. For example,
|
||||
the (integer) value 105 is 10.5% (or .105).
|
||||
*/
|
||||
|
||||
/*
|
||||
* the process_select struct tells get_process_info what processes we
|
||||
* are interested in seeing
|
||||
*/
|
||||
|
||||
struct process_select
|
||||
{
|
||||
int idle; /* show idle processes */
|
||||
int system; /* show system processes */
|
||||
int uid; /* only this uid (unless uid == -1) */
|
||||
char *command; /* only this command (unless == NULL) */
|
||||
};
|
||||
|
||||
/* routines defined by the machine dependent module */
|
||||
|
||||
char *format_header();
|
||||
char *format_next_process();
|
||||
|
||||
/* non-int routines typically used by the machine dependent module */
|
||||
char *printable();
|
||||
25
contrib/top/metatop
Executable file
25
contrib/top/metatop
Executable file
@ -0,0 +1,25 @@
|
||||
#! /bin/sh
|
||||
#
|
||||
# Top is very sensitive to differences in the kernel, so much so that an
|
||||
# executable created on one sub-architecture may not work on others. It
|
||||
# is also quite common for a minor OS revision to require recompilation of
|
||||
# top. Both of these problems are especially prevalent on Suns. For
|
||||
# example, a top executable made under SunOS 4.1.1 will not run correctly
|
||||
# under SunOS 4.1.2, and vice versa. "metatop" attempts to solve this
|
||||
# problem by choosing one of several possible top executables to run then
|
||||
# executing it.
|
||||
#
|
||||
# To use metatop your operating system needs to have the command "uname"
|
||||
# as part of the standard OS release. MAKE SURE IT DOES before proceeding.
|
||||
# It will try to execute the command "top-`uname -m`-`uname -r`" For
|
||||
# example, on a sparcstation 1 running SunOS 4.1.1, it will try to run
|
||||
# "top-sun4c-4.1.1".
|
||||
#
|
||||
# INSTALLATION is easy. Just compile top as normal. Then use the command
|
||||
# "make metainstall" (on the same machine!) instead of the usual. "make"
|
||||
# will insure that this shell script is installed correctly then will install
|
||||
# the most recently made top executable with the correct name. Remember:
|
||||
# you will need to "make clean" and "make metainstall" on every different
|
||||
# combination of sub-architecture and OS version that you have.
|
||||
#
|
||||
exec $0-`uname -m`-`uname -r` "$@"
|
||||
29
contrib/top/os.h
Normal file
29
contrib/top/os.h
Normal file
@ -0,0 +1,29 @@
|
||||
#include <sys/types.h>
|
||||
#include <sys/param.h> /* This defines BSD */
|
||||
#if defined(BSD) && !defined(BSD4_4) && !defined(__osf__)
|
||||
# include <stdio.h>
|
||||
# include <strings.h>
|
||||
# define strchr(a, b) index((a), (b))
|
||||
# define strrchr(a, b) rindex((a), (b))
|
||||
# define memcpy(a, b, c) bcopy((b), (a), (c))
|
||||
# define memzero(a, b) bzero((a), (b))
|
||||
# define memcmp(a, b, c) bcmp((a), (b), (c))
|
||||
#if defined(NeXT)
|
||||
typedef void sigret_t;
|
||||
#else
|
||||
typedef int sigret_t;
|
||||
#endif
|
||||
|
||||
/* system routines that don't return int */
|
||||
char *getenv();
|
||||
caddr_t malloc();
|
||||
|
||||
#else
|
||||
# include <stdio.h>
|
||||
# define setbuffer(f, b, s) setvbuf((f), (b), (b) ? _IOFBF : _IONBF, (s))
|
||||
# include <string.h>
|
||||
# include <memory.h>
|
||||
# include <stdlib.h>
|
||||
# define memzero(a, b) memset((a), 0, (b))
|
||||
typedef void sigret_t;
|
||||
#endif
|
||||
1
contrib/top/patchlevel.h
Normal file
1
contrib/top/patchlevel.h
Normal file
@ -0,0 +1 @@
|
||||
#define PATCHLEVEL 4
|
||||
40
contrib/top/prime.c
Normal file
40
contrib/top/prime.c
Normal file
@ -0,0 +1,40 @@
|
||||
/*
|
||||
* Prime number generator. It prints on stdout the next prime number
|
||||
* higher than the number specified as argv[1].
|
||||
*/
|
||||
|
||||
#include <math.h>
|
||||
|
||||
main(argc, argv)
|
||||
|
||||
int argc;
|
||||
char *argv[];
|
||||
|
||||
{
|
||||
double i, j;
|
||||
int f;
|
||||
|
||||
if (argc < 2)
|
||||
{
|
||||
exit(1);
|
||||
}
|
||||
|
||||
i = atoi(argv[1]);
|
||||
while (i++)
|
||||
{
|
||||
f=1;
|
||||
for (j=2; j<i; j++)
|
||||
{
|
||||
if ((i/j)==floor(i/j))
|
||||
{
|
||||
f=0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (f)
|
||||
{
|
||||
printf("%.0f\n", i);
|
||||
exit(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
494
contrib/top/screen.c
Normal file
494
contrib/top/screen.c
Normal file
@ -0,0 +1,494 @@
|
||||
/*
|
||||
* Top users/processes display for Unix
|
||||
* Version 3
|
||||
*
|
||||
* This program may be freely redistributed,
|
||||
* but this entire comment MUST remain intact.
|
||||
*
|
||||
* Copyright (c) 1984, 1989, William LeFebvre, Rice University
|
||||
* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
|
||||
*/
|
||||
|
||||
/* This file contains the routines that interface to termcap and stty/gtty.
|
||||
*
|
||||
* Paul Vixie, February 1987: converted to use ioctl() instead of stty/gtty.
|
||||
*
|
||||
* I put in code to turn on the TOSTOP bit while top was running, but I
|
||||
* didn't really like the results. If you desire it, turn on the
|
||||
* preprocessor variable "TOStop". --wnl
|
||||
*/
|
||||
|
||||
#include "os.h"
|
||||
#include "top.h"
|
||||
|
||||
#include <sys/ioctl.h>
|
||||
#ifdef CBREAK
|
||||
# include <sgtty.h>
|
||||
# define SGTTY
|
||||
#else
|
||||
# ifdef TCGETA
|
||||
# define TERMIO
|
||||
# include <termio.h>
|
||||
# else
|
||||
# define TERMIOS
|
||||
# include <termios.h>
|
||||
# endif
|
||||
#endif
|
||||
#if defined(TERMIO) || defined(TERMIOS)
|
||||
# ifndef TAB3
|
||||
# ifdef OXTABS
|
||||
# define TAB3 OXTABS
|
||||
# else
|
||||
# define TAB3 0
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
#include "screen.h"
|
||||
#include "boolean.h"
|
||||
|
||||
extern char *myname;
|
||||
|
||||
int putstdout();
|
||||
|
||||
int overstrike;
|
||||
int screen_length;
|
||||
int screen_width;
|
||||
char ch_erase;
|
||||
char ch_kill;
|
||||
char smart_terminal;
|
||||
char PC;
|
||||
char *tgetstr();
|
||||
char *tgoto();
|
||||
char termcap_buf[1024];
|
||||
char string_buffer[1024];
|
||||
char home[15];
|
||||
char lower_left[15];
|
||||
char *clear_line;
|
||||
char *clear_screen;
|
||||
char *clear_to_end;
|
||||
char *cursor_motion;
|
||||
char *start_standout;
|
||||
char *end_standout;
|
||||
char *terminal_init;
|
||||
char *terminal_end;
|
||||
short ospeed;
|
||||
|
||||
#ifdef SGTTY
|
||||
static struct sgttyb old_settings;
|
||||
static struct sgttyb new_settings;
|
||||
#endif
|
||||
#ifdef TERMIO
|
||||
static struct termio old_settings;
|
||||
static struct termio new_settings;
|
||||
#endif
|
||||
#ifdef TERMIOS
|
||||
static struct termios old_settings;
|
||||
static struct termios new_settings;
|
||||
#endif
|
||||
static char is_a_terminal = No;
|
||||
#ifdef TOStop
|
||||
static int old_lword;
|
||||
static int new_lword;
|
||||
#endif
|
||||
|
||||
#define STDIN 0
|
||||
#define STDOUT 1
|
||||
#define STDERR 2
|
||||
|
||||
init_termcap(interactive)
|
||||
|
||||
int interactive;
|
||||
|
||||
{
|
||||
char *bufptr;
|
||||
char *PCptr;
|
||||
char *term_name;
|
||||
char *getenv();
|
||||
int status;
|
||||
|
||||
/* set defaults in case we aren't smart */
|
||||
screen_width = MAX_COLS;
|
||||
screen_length = 0;
|
||||
|
||||
if (!interactive)
|
||||
{
|
||||
/* pretend we have a dumb terminal */
|
||||
smart_terminal = No;
|
||||
return;
|
||||
}
|
||||
|
||||
/* assume we have a smart terminal until proven otherwise */
|
||||
smart_terminal = Yes;
|
||||
|
||||
/* get the terminal name */
|
||||
term_name = getenv("TERM");
|
||||
|
||||
/* if there is no TERM, assume it's a dumb terminal */
|
||||
/* patch courtesy of Sam Horrocks at telegraph.ics.uci.edu */
|
||||
if (term_name == NULL)
|
||||
{
|
||||
smart_terminal = No;
|
||||
return;
|
||||
}
|
||||
|
||||
/* now get the termcap entry */
|
||||
if ((status = tgetent(termcap_buf, term_name)) != 1)
|
||||
{
|
||||
if (status == -1)
|
||||
{
|
||||
fprintf(stderr, "%s: can't open termcap file\n", myname);
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "%s: no termcap entry for a `%s' terminal\n",
|
||||
myname, term_name);
|
||||
}
|
||||
|
||||
/* pretend it's dumb and proceed */
|
||||
smart_terminal = No;
|
||||
return;
|
||||
}
|
||||
|
||||
/* "hardcopy" immediately indicates a very stupid terminal */
|
||||
if (tgetflag("hc"))
|
||||
{
|
||||
smart_terminal = No;
|
||||
return;
|
||||
}
|
||||
|
||||
/* set up common terminal capabilities */
|
||||
if ((screen_length = tgetnum("li")) <= 0)
|
||||
{
|
||||
screen_length = smart_terminal = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
/* screen_width is a little different */
|
||||
if ((screen_width = tgetnum("co")) == -1)
|
||||
{
|
||||
screen_width = 79;
|
||||
}
|
||||
else
|
||||
{
|
||||
screen_width -= 1;
|
||||
}
|
||||
|
||||
/* terminals that overstrike need special attention */
|
||||
overstrike = tgetflag("os");
|
||||
|
||||
/* initialize the pointer into the termcap string buffer */
|
||||
bufptr = string_buffer;
|
||||
|
||||
/* get "ce", clear to end */
|
||||
if (!overstrike)
|
||||
{
|
||||
clear_line = tgetstr("ce", &bufptr);
|
||||
}
|
||||
|
||||
/* get necessary capabilities */
|
||||
if ((clear_screen = tgetstr("cl", &bufptr)) == NULL ||
|
||||
(cursor_motion = tgetstr("cm", &bufptr)) == NULL)
|
||||
{
|
||||
smart_terminal = No;
|
||||
return;
|
||||
}
|
||||
|
||||
/* get some more sophisticated stuff -- these are optional */
|
||||
clear_to_end = tgetstr("cd", &bufptr);
|
||||
terminal_init = tgetstr("ti", &bufptr);
|
||||
terminal_end = tgetstr("te", &bufptr);
|
||||
start_standout = tgetstr("so", &bufptr);
|
||||
end_standout = tgetstr("se", &bufptr);
|
||||
|
||||
/* pad character */
|
||||
PC = (PCptr = tgetstr("pc", &bufptr)) ? *PCptr : 0;
|
||||
|
||||
/* set convenience strings */
|
||||
(void) strcpy(home, tgoto(cursor_motion, 0, 0));
|
||||
/* (lower_left is set in get_screensize) */
|
||||
|
||||
/* get the actual screen size with an ioctl, if needed */
|
||||
/* This may change screen_width and screen_length, and it always
|
||||
sets lower_left. */
|
||||
get_screensize();
|
||||
|
||||
/* if stdout is not a terminal, pretend we are a dumb terminal */
|
||||
#ifdef SGTTY
|
||||
if (ioctl(STDOUT, TIOCGETP, &old_settings) == -1)
|
||||
{
|
||||
smart_terminal = No;
|
||||
}
|
||||
#endif
|
||||
#ifdef TERMIO
|
||||
if (ioctl(STDOUT, TCGETA, &old_settings) == -1)
|
||||
{
|
||||
smart_terminal = No;
|
||||
}
|
||||
#endif
|
||||
#ifdef TERMIOS
|
||||
if (tcgetattr(STDOUT, &old_settings) == -1)
|
||||
{
|
||||
smart_terminal = No;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
init_screen()
|
||||
|
||||
{
|
||||
/* get the old settings for safe keeping */
|
||||
#ifdef SGTTY
|
||||
if (ioctl(STDOUT, TIOCGETP, &old_settings) != -1)
|
||||
{
|
||||
/* copy the settings so we can modify them */
|
||||
new_settings = old_settings;
|
||||
|
||||
/* turn on CBREAK and turn off character echo and tab expansion */
|
||||
new_settings.sg_flags |= CBREAK;
|
||||
new_settings.sg_flags &= ~(ECHO|XTABS);
|
||||
(void) ioctl(STDOUT, TIOCSETP, &new_settings);
|
||||
|
||||
/* remember the erase and kill characters */
|
||||
ch_erase = old_settings.sg_erase;
|
||||
ch_kill = old_settings.sg_kill;
|
||||
|
||||
#ifdef TOStop
|
||||
/* get the local mode word */
|
||||
(void) ioctl(STDOUT, TIOCLGET, &old_lword);
|
||||
|
||||
/* modify it */
|
||||
new_lword = old_lword | LTOSTOP;
|
||||
(void) ioctl(STDOUT, TIOCLSET, &new_lword);
|
||||
#endif
|
||||
/* remember that it really is a terminal */
|
||||
is_a_terminal = Yes;
|
||||
|
||||
/* send the termcap initialization string */
|
||||
putcap(terminal_init);
|
||||
}
|
||||
#endif
|
||||
#ifdef TERMIO
|
||||
if (ioctl(STDOUT, TCGETA, &old_settings) != -1)
|
||||
{
|
||||
/* copy the settings so we can modify them */
|
||||
new_settings = old_settings;
|
||||
|
||||
/* turn off ICANON, character echo and tab expansion */
|
||||
new_settings.c_lflag &= ~(ICANON|ECHO);
|
||||
new_settings.c_oflag &= ~(TAB3);
|
||||
new_settings.c_cc[VMIN] = 1;
|
||||
new_settings.c_cc[VTIME] = 0;
|
||||
(void) ioctl(STDOUT, TCSETA, &new_settings);
|
||||
|
||||
/* remember the erase and kill characters */
|
||||
ch_erase = old_settings.c_cc[VERASE];
|
||||
ch_kill = old_settings.c_cc[VKILL];
|
||||
|
||||
/* remember that it really is a terminal */
|
||||
is_a_terminal = Yes;
|
||||
|
||||
/* send the termcap initialization string */
|
||||
putcap(terminal_init);
|
||||
}
|
||||
#endif
|
||||
#ifdef TERMIOS
|
||||
if (tcgetattr(STDOUT, &old_settings) != -1)
|
||||
{
|
||||
/* copy the settings so we can modify them */
|
||||
new_settings = old_settings;
|
||||
|
||||
/* turn off ICANON, character echo and tab expansion */
|
||||
new_settings.c_lflag &= ~(ICANON|ECHO);
|
||||
new_settings.c_oflag &= ~(TAB3);
|
||||
new_settings.c_cc[VMIN] = 1;
|
||||
new_settings.c_cc[VTIME] = 0;
|
||||
(void) tcsetattr(STDOUT, TCSADRAIN, &new_settings);
|
||||
|
||||
/* remember the erase and kill characters */
|
||||
ch_erase = old_settings.c_cc[VERASE];
|
||||
ch_kill = old_settings.c_cc[VKILL];
|
||||
|
||||
/* remember that it really is a terminal */
|
||||
is_a_terminal = Yes;
|
||||
|
||||
/* send the termcap initialization string */
|
||||
putcap(terminal_init);
|
||||
}
|
||||
#endif
|
||||
|
||||
if (!is_a_terminal)
|
||||
{
|
||||
/* not a terminal at all---consider it dumb */
|
||||
smart_terminal = No;
|
||||
}
|
||||
}
|
||||
|
||||
end_screen()
|
||||
|
||||
{
|
||||
/* move to the lower left, clear the line and send "te" */
|
||||
if (smart_terminal)
|
||||
{
|
||||
putcap(lower_left);
|
||||
putcap(clear_line);
|
||||
fflush(stdout);
|
||||
putcap(terminal_end);
|
||||
}
|
||||
|
||||
/* if we have settings to reset, then do so */
|
||||
if (is_a_terminal)
|
||||
{
|
||||
#ifdef SGTTY
|
||||
(void) ioctl(STDOUT, TIOCSETP, &old_settings);
|
||||
#ifdef TOStop
|
||||
(void) ioctl(STDOUT, TIOCLSET, &old_lword);
|
||||
#endif
|
||||
#endif
|
||||
#ifdef TERMIO
|
||||
(void) ioctl(STDOUT, TCSETA, &old_settings);
|
||||
#endif
|
||||
#ifdef TERMIOS
|
||||
(void) tcsetattr(STDOUT, TCSADRAIN, &old_settings);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
reinit_screen()
|
||||
|
||||
{
|
||||
/* install our settings if it is a terminal */
|
||||
if (is_a_terminal)
|
||||
{
|
||||
#ifdef SGTTY
|
||||
(void) ioctl(STDOUT, TIOCSETP, &new_settings);
|
||||
#ifdef TOStop
|
||||
(void) ioctl(STDOUT, TIOCLSET, &new_lword);
|
||||
#endif
|
||||
#endif
|
||||
#ifdef TERMIO
|
||||
(void) ioctl(STDOUT, TCSETA, &new_settings);
|
||||
#endif
|
||||
#ifdef TERMIOS
|
||||
(void) tcsetattr(STDOUT, TCSADRAIN, &new_settings);
|
||||
#endif
|
||||
}
|
||||
|
||||
/* send init string */
|
||||
if (smart_terminal)
|
||||
{
|
||||
putcap(terminal_init);
|
||||
}
|
||||
}
|
||||
|
||||
get_screensize()
|
||||
|
||||
{
|
||||
|
||||
#ifdef TIOCGWINSZ
|
||||
|
||||
struct winsize ws;
|
||||
|
||||
if (ioctl (1, TIOCGWINSZ, &ws) != -1)
|
||||
{
|
||||
if (ws.ws_row != 0)
|
||||
{
|
||||
screen_length = ws.ws_row;
|
||||
}
|
||||
if (ws.ws_col != 0)
|
||||
{
|
||||
screen_width = ws.ws_col - 1;
|
||||
}
|
||||
}
|
||||
|
||||
#else
|
||||
#ifdef TIOCGSIZE
|
||||
|
||||
struct ttysize ts;
|
||||
|
||||
if (ioctl (1, TIOCGSIZE, &ts) != -1)
|
||||
{
|
||||
if (ts.ts_lines != 0)
|
||||
{
|
||||
screen_length = ts.ts_lines;
|
||||
}
|
||||
if (ts.ts_cols != 0)
|
||||
{
|
||||
screen_width = ts.ts_cols - 1;
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* TIOCGSIZE */
|
||||
#endif /* TIOCGWINSZ */
|
||||
|
||||
(void) strcpy(lower_left, tgoto(cursor_motion, 0, screen_length - 1));
|
||||
}
|
||||
|
||||
standout(msg)
|
||||
|
||||
char *msg;
|
||||
|
||||
{
|
||||
if (smart_terminal)
|
||||
{
|
||||
putcap(start_standout);
|
||||
fputs(msg, stdout);
|
||||
putcap(end_standout);
|
||||
}
|
||||
else
|
||||
{
|
||||
fputs(msg, stdout);
|
||||
}
|
||||
}
|
||||
|
||||
clear()
|
||||
|
||||
{
|
||||
if (smart_terminal)
|
||||
{
|
||||
putcap(clear_screen);
|
||||
}
|
||||
}
|
||||
|
||||
clear_eol(len)
|
||||
|
||||
int len;
|
||||
|
||||
{
|
||||
if (smart_terminal && !overstrike && len > 0)
|
||||
{
|
||||
if (clear_line)
|
||||
{
|
||||
putcap(clear_line);
|
||||
return(0);
|
||||
}
|
||||
else
|
||||
{
|
||||
while (len-- > 0)
|
||||
{
|
||||
putchar(' ');
|
||||
}
|
||||
return(1);
|
||||
}
|
||||
}
|
||||
return(-1);
|
||||
}
|
||||
|
||||
go_home()
|
||||
|
||||
{
|
||||
if (smart_terminal)
|
||||
{
|
||||
putcap(home);
|
||||
}
|
||||
}
|
||||
|
||||
/* This has to be defined as a subroutine for tputs (instead of a macro) */
|
||||
|
||||
putstdout(ch)
|
||||
|
||||
char ch;
|
||||
|
||||
{
|
||||
putchar(ch);
|
||||
}
|
||||
|
||||
31
contrib/top/screen.h
Normal file
31
contrib/top/screen.h
Normal file
@ -0,0 +1,31 @@
|
||||
/*
|
||||
* top - a top users display for Unix 4.2
|
||||
*
|
||||
* This file contains all the definitions necessary to use the hand-written
|
||||
* screen package in "screen.c"
|
||||
*/
|
||||
|
||||
#define TCputs(str) tputs(str, 1, putstdout)
|
||||
#define putcap(str) (void)((str) != NULL ? TCputs(str) : 0)
|
||||
#define Move_to(x, y) TCputs(tgoto(cursor_motion, x, y))
|
||||
|
||||
/* declare return values for termcap functions */
|
||||
char *tgetstr();
|
||||
char *tgoto();
|
||||
|
||||
extern char ch_erase; /* set to the user's erase character */
|
||||
extern char ch_kill; /* set to the user's kill character */
|
||||
extern char smart_terminal; /* set if the terminal has sufficient termcap
|
||||
capabilities for normal operation */
|
||||
|
||||
/* These are some termcap strings for use outside of "screen.c" */
|
||||
extern char *cursor_motion;
|
||||
extern char *clear_line;
|
||||
extern char *clear_to_end;
|
||||
|
||||
/* rows and columns on the screen according to termcap */
|
||||
extern int screen_length;
|
||||
extern int screen_width;
|
||||
|
||||
/* a function that puts a single character on stdout */
|
||||
int putstdout();
|
||||
53
contrib/top/sigconv.awk
Normal file
53
contrib/top/sigconv.awk
Normal file
@ -0,0 +1,53 @@
|
||||
BEGIN {
|
||||
nsig = 0;
|
||||
j = 0;
|
||||
print "/* This file was automatically generated */"
|
||||
print "/* by the awk script \"sigconv.awk\". */\n"
|
||||
print "struct sigdesc {"
|
||||
print " char *name;"
|
||||
print " int number;"
|
||||
print "};\n"
|
||||
print "struct sigdesc sigdesc[] = {"
|
||||
}
|
||||
|
||||
/^#define[ \t][ \t]*SIG[A-Z]/ {
|
||||
|
||||
j = sprintf("%d", $3);
|
||||
str = $2;
|
||||
|
||||
if (nsig < j)
|
||||
nsig = j;
|
||||
|
||||
siglist[j] = sprintf("\"%s\",\t%2d,", \
|
||||
substr(str, 4), j);
|
||||
}
|
||||
/^#[ \t]*define[ \t][ \t]*SIG[A-Z]/ {
|
||||
|
||||
j = sprintf("%d", $4);
|
||||
str = $3;
|
||||
|
||||
if (nsig < j)
|
||||
nsig = j;
|
||||
|
||||
siglist[j] = sprintf("\"%s\",\t%2d,", \
|
||||
substr(str, 4), j);
|
||||
}
|
||||
/^#[ \t]*define[ \t][ \t]*_SIG[A-Z]/ {
|
||||
|
||||
j = sprintf("%d", $4);
|
||||
str = $3;
|
||||
|
||||
if (nsig < j)
|
||||
nsig = j;
|
||||
|
||||
siglist[j] = sprintf("\"%s\",\t%2d,", \
|
||||
substr(str, 5), j);
|
||||
}
|
||||
|
||||
END {
|
||||
for (n = 1; n <= nsig; n++)
|
||||
if (siglist[n] != "")
|
||||
printf(" %s\n", siglist[n]);
|
||||
|
||||
printf(" NULL,\t 0\n};\n");
|
||||
}
|
||||
324
contrib/top/top.X
Normal file
324
contrib/top/top.X
Normal file
@ -0,0 +1,324 @@
|
||||
.\" NOTE: changes to the manual page for "top" should be made in the
|
||||
.\" file "top.X" and NOT in the file "top.1".
|
||||
.nr N %topn%
|
||||
.nr D %delay%
|
||||
.TH TOP 1 Local
|
||||
.UC 4
|
||||
.SH NAME
|
||||
top \- display and update information about the top cpu processes
|
||||
.SH SYNOPSIS
|
||||
.B top
|
||||
[
|
||||
.B \-SbiInqu
|
||||
] [
|
||||
.BI \-d count
|
||||
] [
|
||||
.BI \-s time
|
||||
] [
|
||||
.BI \-o field
|
||||
] [
|
||||
.BI \-U username
|
||||
] [
|
||||
.I number
|
||||
]
|
||||
.SH DESCRIPTION
|
||||
.\" This defines appropriate quote strings for nroff and troff
|
||||
.ds lq \&"
|
||||
.ds rq \&"
|
||||
.if t .ds lq ``
|
||||
.if t .ds rq ''
|
||||
.\" Just in case these number registers aren't set yet...
|
||||
.if \nN==0 .nr N 10
|
||||
.if \nD==0 .nr D 5
|
||||
.I Top
|
||||
displays the top
|
||||
.if !\nN==-1 \nN
|
||||
processes on the system and periodically updates this information.
|
||||
.if \nN==-1 \
|
||||
\{\
|
||||
If standard output is an intelligent terminal (see below) then
|
||||
as many processes as will fit on the terminal screen are displayed
|
||||
by default. Otherwise, a good number of them are shown (around 20).
|
||||
.\}
|
||||
Raw cpu percentage is used to rank the processes. If
|
||||
.I number
|
||||
is given, then the top
|
||||
.I number
|
||||
processes will be displayed instead of the default.
|
||||
.PP
|
||||
.I Top
|
||||
makes a distinction between terminals that support advanced capabilities
|
||||
and those that do not. This
|
||||
distinction affects the choice of defaults for certain options. In the
|
||||
remainder of this document, an \*(lqintelligent\*(rq terminal is one that
|
||||
supports cursor addressing, clear screen, and clear to end of line.
|
||||
Conversely, a \*(lqdumb\*(rq terminal is one that does not support such
|
||||
features. If the output of
|
||||
.I top
|
||||
is redirected to a file, it acts as if it were being run on a dumb
|
||||
terminal.
|
||||
.SH OPTIONS
|
||||
.TP
|
||||
.B \-S
|
||||
Show system processes in the display. Normally, system processes such as
|
||||
the pager and the swapper are not shown. This option makes them visible.
|
||||
.TP
|
||||
.B \-b
|
||||
Use \*(lqbatch\*(rq mode. In this mode, all input from the terminal is
|
||||
ignored. Interrupt characters (such as ^C and ^\e) still have an effect.
|
||||
This is the default on a dumb terminal, or when the output is not a terminal.
|
||||
.TP
|
||||
.B \-i
|
||||
Use \*(lqinteractive\*(rq mode. In this mode, any input is immediately
|
||||
read for processing. See the section on \*(lqInteractive Mode\*(rq
|
||||
for an explanation of
|
||||
which keys perform what functions. After the command is processed, the
|
||||
screen will immediately be updated, even if the command was not
|
||||
understood. This mode is the default when standard output is an
|
||||
intelligent terminal.
|
||||
.TP
|
||||
.B \-I
|
||||
Do not display idle processes.
|
||||
By default, top displays both active and idle processes.
|
||||
.TP
|
||||
.B \-n
|
||||
Use \*(lqnon-interactive\*(rq mode. This is indentical to \*(lqbatch\*(rq
|
||||
mode.
|
||||
.TP
|
||||
.B \-q
|
||||
Renice
|
||||
.I top
|
||||
to -20 so that it will run faster. This can be used when the system is
|
||||
being very sluggish to improve the possibility of discovering the problem.
|
||||
This option can only be used by root.
|
||||
.TP
|
||||
.B \-u
|
||||
Do not take the time to map uid numbers to usernames. Normally,
|
||||
.I top
|
||||
will read as much of the file \*(lq/etc/passwd\*(rq as is necessary to map
|
||||
all the user id numbers it encounters into login names. This option
|
||||
disables all that, while possibly decreasing execution time. The uid
|
||||
numbers are displayed instead of the names.
|
||||
.TP
|
||||
.BI \-d count
|
||||
Show only
|
||||
.I count
|
||||
displays, then exit. A display is considered to be one update of the
|
||||
screen. This option allows the user to select the number of displays he
|
||||
wants to see before
|
||||
.I top
|
||||
automatically exits. For intelligent terminals, no upper limit
|
||||
is set. The default is 1 for dumb terminals.
|
||||
.TP
|
||||
.BI \-s time
|
||||
Set the delay between screen updates to
|
||||
.I time
|
||||
seconds. The default delay between updates is \nD seconds.
|
||||
.TP
|
||||
.BI \-o field
|
||||
Sort the process display area on the specified field. The field name is
|
||||
the name of the column as seen in the output, but in lower case. Likely
|
||||
values are \*(lqcpu\*(rq, \*(lqsize\*(rq, \*(lqres\*(rq, and \*(lqtime\*(rq,
|
||||
but may vary on different operating systems. Note that
|
||||
not all operating systems support this option.
|
||||
.TP
|
||||
.BI \-U username
|
||||
Show only those processes owned by
|
||||
.IR username .
|
||||
This option currently only accepts usernames and will not understand
|
||||
uid numbers.
|
||||
.PP
|
||||
Both
|
||||
.I count
|
||||
and
|
||||
.I number
|
||||
fields can be specified as \*(lqinfinite\*(rq, indicating that they can
|
||||
stretch as far as possible. This is accomplished by using any proper
|
||||
prefix of the keywords
|
||||
\*(lqinfinity\*(rq,
|
||||
\*(lqmaximum\*(rq,
|
||||
or
|
||||
\*(lqall\*(rq.
|
||||
The default for
|
||||
.I count
|
||||
on an intelligent terminal is, in fact,
|
||||
.BI infinity .
|
||||
.PP
|
||||
The environment variable
|
||||
.B TOP
|
||||
is examined for options before the command line is scanned. This enables
|
||||
a user to set his or her own defaults. The number of processes to display
|
||||
can also be specified in the environment variable
|
||||
.BR TOP .
|
||||
The options
|
||||
.BR \-I ,
|
||||
.BR \-S ,
|
||||
and
|
||||
.B \-u
|
||||
are actually toggles. A second specification of any of these options
|
||||
will negate the first. Thus a user who has the environment variable
|
||||
.B TOP
|
||||
set to \*(lq\-I\*(rq may use the command \*(lqtop \-I\*(rq to see idle processes.
|
||||
.SH "INTERACTIVE MODE"
|
||||
When
|
||||
.I top
|
||||
is running in \*(lqinteractive mode\*(rq, it reads commands from the
|
||||
terminal and acts upon them accordingly. In this mode, the terminal is
|
||||
put in \*(lqCBREAK\*(rq, so that a character will be
|
||||
processed as soon as it is typed. Almost always, a key will be
|
||||
pressed when
|
||||
.I top
|
||||
is between displays; that is, while it is waiting for
|
||||
.I time
|
||||
seconds to elapse. If this is the case, the command will be
|
||||
processed and the display will be updated immediately thereafter
|
||||
(reflecting any changes that the command may have specified). This
|
||||
happens even if the command was incorrect. If a key is pressed while
|
||||
.I top
|
||||
is in the middle of updating the display, it will finish the update and
|
||||
then process the command. Some commands require additional information,
|
||||
and the user will be prompted accordingly. While typing this information
|
||||
in, the user's erase and kill keys (as set up by the command
|
||||
.IR stty )
|
||||
are recognized, and a newline terminates the input.
|
||||
.PP
|
||||
These commands are currently recognized (^L refers to control-L):
|
||||
.TP
|
||||
.B ^L
|
||||
Redraw the screen.
|
||||
.IP "\fBh\fP\ or\ \fB?\fP"
|
||||
Display a summary of the commands (help screen).
|
||||
.TP
|
||||
.B q
|
||||
Quit
|
||||
.IR top.
|
||||
.TP
|
||||
.B d
|
||||
Change the number of displays to show (prompt for new number).
|
||||
Remember that the next display counts as one, so typing
|
||||
.B d1
|
||||
will make
|
||||
.I top
|
||||
show one final display and then immediately exit.
|
||||
.TP
|
||||
.B n or #
|
||||
Change the number of processes to display (prompt for new number).
|
||||
.TP
|
||||
.B s
|
||||
Change the number of seconds to delay between displays
|
||||
(prompt for new number).
|
||||
.TP
|
||||
.B k
|
||||
Send a signal (\*(lqkill\*(rq by default) to a list of processes. This
|
||||
acts similarly to the command
|
||||
.IR kill (1)).
|
||||
.TP
|
||||
.B r
|
||||
Change the priority (the \*(lqnice\*(rq) of a list of processes.
|
||||
This acts similarly to the command
|
||||
.IR renice (8)).
|
||||
.TP
|
||||
.B u
|
||||
Display only processes owned by a specific username (prompt for username).
|
||||
If the username specified is simply \*(lq+\*(rq, then processes belonging
|
||||
to all users will be displayed.
|
||||
.TP
|
||||
.B e
|
||||
Display a list of system errors (if any) generated by the last
|
||||
.BR k ill
|
||||
or
|
||||
.BR r enice
|
||||
command.
|
||||
.TP
|
||||
.B i
|
||||
(or
|
||||
.BR I)
|
||||
Toggle the display of idle processes.
|
||||
.SH "THE DISPLAY"
|
||||
The actual display varies depending on the specific variant of Unix
|
||||
that the machine is running. This description may not exactly match
|
||||
what is seen by top running on this particular machine. Differences
|
||||
are listed at the end of this manual entry.
|
||||
.PP
|
||||
The top few lines of the display show general information
|
||||
about the state of the system, including
|
||||
the last process id assigned to a process (on most systems),
|
||||
the three load averages,
|
||||
the current time,
|
||||
the number of existing processes,
|
||||
the number of processes in each state
|
||||
(sleeping, running, starting, zombies, and stopped),
|
||||
and a percentage of time spent in each of the processor states
|
||||
(user, nice, system, and idle).
|
||||
It also includes information about physial and virtual memory allocation.
|
||||
.PP
|
||||
The remainder of the screen displays information about individual
|
||||
processes. This display is similar in spirit to
|
||||
.IR ps (1)
|
||||
but it is not exactly the same. PID is the process id, USERNAME is the name
|
||||
of the process's owner (if
|
||||
.B \-u
|
||||
is specified, a UID column will be substituted for USERNAME),
|
||||
PRI is the current priority of the process,
|
||||
NICE is the nice amount (in the range \-20 to 20),
|
||||
SIZE is the total size of the process (text, data, and stack),
|
||||
RES is the current amount of resident memory (both SIZE and RES are
|
||||
given in kilobytes),
|
||||
STATE is the current state (one of \*(lqsleep\*(rq, \*(lqWAIT\*(rq,
|
||||
\*(lqrun\*(rq, \*(lqidl\*(rq, \*(lqzomb\*(rq, or \*(lqstop\*(rq),
|
||||
TIME is the number of system and user cpu seconds that the process has used,
|
||||
WCPU, when displayed, is the weighted cpu percentage (this is the same
|
||||
value that
|
||||
.IR ps (1)
|
||||
displays as CPU),
|
||||
CPU is the raw percentage and is the field that is sorted to determine
|
||||
the order of the processes, and
|
||||
COMMAND is the name of the command that the process is currently running
|
||||
(if the process is swapped out, this column is marked \*(lq<swapped>\*(rq).
|
||||
.SH NOTES
|
||||
The \*(lqABANDONED\*(rq state (known in the kernel as \*(lqSWAIT\*(rq) was
|
||||
abandoned, thus the name. A process should never end up in this state.
|
||||
.SH AUTHOR
|
||||
William LeFebvre, EECS Department, Northwestern University
|
||||
.SH ENVIRONMENT
|
||||
.DT
|
||||
TOP user-configurable defaults for options.
|
||||
.SH FILES
|
||||
.DT
|
||||
/dev/kmem kernel memory
|
||||
.br
|
||||
/dev/mem physical memory
|
||||
.br
|
||||
/etc/passwd used to map uid numbers to user names
|
||||
.br
|
||||
/vmunix system image
|
||||
.SH BUGS
|
||||
Don't shoot me, but the default for
|
||||
.B \-I
|
||||
has changed once again. So many people were confused by the fact that
|
||||
.I top
|
||||
wasn't showing them all the processes that I have decided to make the
|
||||
default behavior show idle processes, just like it did in version 2.
|
||||
But to appease folks who can't stand that behavior, I have added the
|
||||
ability to set \*(lqdefault\*(rq options in the environment variable
|
||||
.B TOP
|
||||
(see the OPTIONS section). Those who want the behavior that version
|
||||
3.0 had need only set the environment variable
|
||||
.B TOP
|
||||
to \*(lq\-I\*(rq.
|
||||
.PP
|
||||
The command name for swapped processes should be tracked down, but this
|
||||
would make the program run slower.
|
||||
.PP
|
||||
As with
|
||||
.IR ps (1),
|
||||
things can change while
|
||||
.I top
|
||||
is collecting information for an update. The picture it gives is only a
|
||||
close approximation to reality.
|
||||
.SH "SEE ALSO"
|
||||
kill(1),
|
||||
ps(1),
|
||||
stty(1),
|
||||
mem(4),
|
||||
renice(8)
|
||||
996
contrib/top/top.c
Normal file
996
contrib/top/top.c
Normal file
@ -0,0 +1,996 @@
|
||||
char *copyright =
|
||||
"Copyright (c) 1984 through 1996, William LeFebvre";
|
||||
|
||||
/*
|
||||
* Top users/processes display for Unix
|
||||
* Version 3
|
||||
*
|
||||
* This program may be freely redistributed,
|
||||
* but this entire comment MUST remain intact.
|
||||
*
|
||||
* Copyright (c) 1984, 1989, William LeFebvre, Rice University
|
||||
* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
|
||||
*/
|
||||
|
||||
/*
|
||||
* See the file "Changes" for information on version-to-version changes.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file contains "main" and other high-level routines.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The following preprocessor variables, when defined, are used to
|
||||
* distinguish between different Unix implementations:
|
||||
*
|
||||
* SIGHOLD - use SVR4 sighold function when defined
|
||||
* SIGRELSE - use SVR4 sigrelse function when defined
|
||||
* FD_SET - macros FD_SET and FD_ZERO are used when defined
|
||||
*/
|
||||
|
||||
#include "os.h"
|
||||
#include <signal.h>
|
||||
#include <setjmp.h>
|
||||
#include <ctype.h>
|
||||
#include <sys/time.h>
|
||||
|
||||
/* includes specific to top */
|
||||
#include "display.h" /* interface to display package */
|
||||
#include "screen.h" /* interface to screen package */
|
||||
#include "top.h"
|
||||
#include "top.local.h"
|
||||
#include "boolean.h"
|
||||
#include "machine.h"
|
||||
#include "utils.h"
|
||||
|
||||
/* Size of the stdio buffer given to stdout */
|
||||
#define Buffersize 2048
|
||||
|
||||
/* The buffer that stdio will use */
|
||||
char stdoutbuf[Buffersize];
|
||||
|
||||
/* build Signal masks */
|
||||
#define Smask(s) (1 << ((s) - 1))
|
||||
|
||||
/* for system errors */
|
||||
extern int errno;
|
||||
|
||||
/* for getopt: */
|
||||
extern int optind;
|
||||
extern char *optarg;
|
||||
|
||||
/* imported from screen.c */
|
||||
extern int overstrike;
|
||||
|
||||
/* signal handling routines */
|
||||
sigret_t leave();
|
||||
sigret_t onalrm();
|
||||
sigret_t tstop();
|
||||
#ifdef SIGWINCH
|
||||
sigret_t winch();
|
||||
#endif
|
||||
|
||||
/* internal routines */
|
||||
void quit();
|
||||
|
||||
/* values which need to be accessed by signal handlers */
|
||||
static int max_topn; /* maximum displayable processes */
|
||||
|
||||
/* miscellaneous things */
|
||||
char *myname = "top";
|
||||
jmp_buf jmp_int;
|
||||
|
||||
/* routines that don't return int */
|
||||
|
||||
char *username();
|
||||
char *ctime();
|
||||
char *kill_procs();
|
||||
char *renice_procs();
|
||||
|
||||
#ifdef ORDER
|
||||
extern int (*proc_compares[])();
|
||||
#else
|
||||
extern int proc_compare();
|
||||
#endif
|
||||
time_t time();
|
||||
|
||||
caddr_t get_process_info();
|
||||
|
||||
/* different routines for displaying the user's identification */
|
||||
/* (values assigned to get_userid) */
|
||||
char *username();
|
||||
char *itoa7();
|
||||
|
||||
/* display routines that need to be predeclared */
|
||||
int i_loadave();
|
||||
int u_loadave();
|
||||
int i_procstates();
|
||||
int u_procstates();
|
||||
int i_cpustates();
|
||||
int u_cpustates();
|
||||
int i_memory();
|
||||
int u_memory();
|
||||
int i_message();
|
||||
int u_message();
|
||||
int i_header();
|
||||
int u_header();
|
||||
int i_process();
|
||||
int u_process();
|
||||
|
||||
/* pointers to display routines */
|
||||
int (*d_loadave)() = i_loadave;
|
||||
int (*d_procstates)() = i_procstates;
|
||||
int (*d_cpustates)() = i_cpustates;
|
||||
int (*d_memory)() = i_memory;
|
||||
int (*d_message)() = i_message;
|
||||
int (*d_header)() = i_header;
|
||||
int (*d_process)() = i_process;
|
||||
|
||||
|
||||
main(argc, argv)
|
||||
|
||||
int argc;
|
||||
char *argv[];
|
||||
|
||||
{
|
||||
register int i;
|
||||
register int active_procs;
|
||||
register int change;
|
||||
|
||||
struct system_info system_info;
|
||||
struct statics statics;
|
||||
caddr_t processes;
|
||||
|
||||
static char tempbuf1[50];
|
||||
static char tempbuf2[50];
|
||||
int old_sigmask; /* only used for BSD-style signals */
|
||||
int topn = Default_TOPN;
|
||||
int delay = Default_DELAY;
|
||||
int displays = 0; /* indicates unspecified */
|
||||
time_t curr_time;
|
||||
char *(*get_userid)() = username;
|
||||
char *uname_field = "USERNAME";
|
||||
char *header_text;
|
||||
char *env_top;
|
||||
char **preset_argv;
|
||||
int preset_argc = 0;
|
||||
char **av;
|
||||
int ac;
|
||||
char dostates = No;
|
||||
char do_unames = Yes;
|
||||
char interactive = Maybe;
|
||||
char warnings = 0;
|
||||
#if Default_TOPN == Infinity
|
||||
char topn_specified = No;
|
||||
#endif
|
||||
char ch;
|
||||
char *iptr;
|
||||
char no_command = 1;
|
||||
struct timeval timeout;
|
||||
struct process_select ps;
|
||||
#ifdef ORDER
|
||||
char *order_name = NULL;
|
||||
int order_index = 0;
|
||||
#endif
|
||||
#ifndef FD_SET
|
||||
/* FD_SET and friends are not present: fake it */
|
||||
typedef int fd_set;
|
||||
#define FD_ZERO(x) (*(x) = 0)
|
||||
#define FD_SET(f, x) (*(x) = f)
|
||||
#endif
|
||||
fd_set readfds;
|
||||
|
||||
#ifdef ORDER
|
||||
static char command_chars[] = "\f qh?en#sdkriIuo";
|
||||
#else
|
||||
static char command_chars[] = "\f qh?en#sdkriIu";
|
||||
#endif
|
||||
/* these defines enumerate the "strchr"s of the commands in command_chars */
|
||||
#define CMD_redraw 0
|
||||
#define CMD_update 1
|
||||
#define CMD_quit 2
|
||||
#define CMD_help1 3
|
||||
#define CMD_help2 4
|
||||
#define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
|
||||
#define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
|
||||
#define CMD_number1 6
|
||||
#define CMD_number2 7
|
||||
#define CMD_delay 8
|
||||
#define CMD_displays 9
|
||||
#define CMD_kill 10
|
||||
#define CMD_renice 11
|
||||
#define CMD_idletog 12
|
||||
#define CMD_idletog2 13
|
||||
#define CMD_user 14
|
||||
#ifdef ORDER
|
||||
#define CMD_order 15
|
||||
#endif
|
||||
|
||||
/* set the buffer for stdout */
|
||||
#ifdef DEBUG
|
||||
setbuffer(stdout, NULL, 0);
|
||||
#else
|
||||
setbuffer(stdout, stdoutbuf, Buffersize);
|
||||
#endif
|
||||
|
||||
/* get our name */
|
||||
if (argc > 0)
|
||||
{
|
||||
if ((myname = strrchr(argv[0], '/')) == 0)
|
||||
{
|
||||
myname = argv[0];
|
||||
}
|
||||
else
|
||||
{
|
||||
myname++;
|
||||
}
|
||||
}
|
||||
|
||||
/* initialize some selection options */
|
||||
ps.idle = Yes;
|
||||
ps.system = No;
|
||||
ps.uid = -1;
|
||||
ps.command = NULL;
|
||||
|
||||
/* get preset options from the environment */
|
||||
if ((env_top = getenv("TOP")) != NULL)
|
||||
{
|
||||
av = preset_argv = argparse(env_top, &preset_argc);
|
||||
ac = preset_argc;
|
||||
|
||||
/* set the dummy argument to an explanatory message, in case
|
||||
getopt encounters a bad argument */
|
||||
preset_argv[0] = "while processing environment";
|
||||
}
|
||||
|
||||
/* process options */
|
||||
do {
|
||||
/* if we're done doing the presets, then process the real arguments */
|
||||
if (preset_argc == 0)
|
||||
{
|
||||
ac = argc;
|
||||
av = argv;
|
||||
|
||||
/* this should keep getopt happy... */
|
||||
optind = 1;
|
||||
}
|
||||
|
||||
while ((i = getopt(ac, av, "SIbinqus:d:U:o:")) != EOF)
|
||||
{
|
||||
switch(i)
|
||||
{
|
||||
case 'u': /* toggle uid/username display */
|
||||
do_unames = !do_unames;
|
||||
break;
|
||||
|
||||
case 'U': /* display only username's processes */
|
||||
if ((ps.uid = userid(optarg)) == -1)
|
||||
{
|
||||
fprintf(stderr, "%s: unknown user\n", optarg);
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
|
||||
case 'S': /* show system processes */
|
||||
ps.system = !ps.system;
|
||||
break;
|
||||
|
||||
case 'I': /* show idle processes */
|
||||
ps.idle = !ps.idle;
|
||||
break;
|
||||
|
||||
case 'i': /* go interactive regardless */
|
||||
interactive = Yes;
|
||||
break;
|
||||
|
||||
case 'n': /* batch, or non-interactive */
|
||||
case 'b':
|
||||
interactive = No;
|
||||
break;
|
||||
|
||||
case 'd': /* number of displays to show */
|
||||
if ((i = atoiwi(optarg)) == Invalid || i == 0)
|
||||
{
|
||||
fprintf(stderr,
|
||||
"%s: warning: display count should be positive -- option ignored\n",
|
||||
myname);
|
||||
warnings++;
|
||||
}
|
||||
else
|
||||
{
|
||||
displays = i;
|
||||
}
|
||||
break;
|
||||
|
||||
case 's':
|
||||
if ((delay = atoi(optarg)) < 0)
|
||||
{
|
||||
fprintf(stderr,
|
||||
"%s: warning: seconds delay should be non-negative -- using default\n",
|
||||
myname);
|
||||
delay = Default_DELAY;
|
||||
warnings++;
|
||||
}
|
||||
break;
|
||||
|
||||
case 'q': /* be quick about it */
|
||||
/* only allow this if user is really root */
|
||||
if (getuid() == 0)
|
||||
{
|
||||
/* be very un-nice! */
|
||||
(void) nice(-20);
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr,
|
||||
"%s: warning: `-q' option can only be used by root\n",
|
||||
myname);
|
||||
warnings++;
|
||||
}
|
||||
break;
|
||||
|
||||
case 'o': /* select sort order */
|
||||
#ifdef ORDER
|
||||
order_name = optarg;
|
||||
#else
|
||||
fprintf(stderr,
|
||||
"%s: this platform does not support arbitrary ordering. Sorry.\n",
|
||||
myname);
|
||||
warnings++;
|
||||
#endif
|
||||
break;
|
||||
|
||||
default:
|
||||
fprintf(stderr, "\
|
||||
Top version %s\n\
|
||||
Usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
|
||||
version_string(), myname);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
/* get count of top processes to display (if any) */
|
||||
if (optind < ac)
|
||||
{
|
||||
if ((topn = atoiwi(av[optind])) == Invalid)
|
||||
{
|
||||
fprintf(stderr,
|
||||
"%s: warning: process display count should be non-negative -- using default\n",
|
||||
myname);
|
||||
warnings++;
|
||||
}
|
||||
#if Default_TOPN == Infinity
|
||||
else
|
||||
{
|
||||
topn_specified = Yes;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
/* tricky: remember old value of preset_argc & set preset_argc = 0 */
|
||||
i = preset_argc;
|
||||
preset_argc = 0;
|
||||
|
||||
/* repeat only if we really did the preset arguments */
|
||||
} while (i != 0);
|
||||
|
||||
/* set constants for username/uid display correctly */
|
||||
if (!do_unames)
|
||||
{
|
||||
uname_field = " UID ";
|
||||
get_userid = itoa7;
|
||||
}
|
||||
|
||||
/* initialize the kernel memory interface */
|
||||
if (machine_init(&statics) == -1)
|
||||
{
|
||||
exit(1);
|
||||
}
|
||||
|
||||
#ifdef ORDER
|
||||
/* determine sorting order index, if necessary */
|
||||
if (order_name != NULL)
|
||||
{
|
||||
if ((order_index = string_index(order_name, statics.order_names)) == -1)
|
||||
{
|
||||
char **pp;
|
||||
|
||||
fprintf(stderr, "%s: '%s' is not a recognized sorting order.\n",
|
||||
myname, order_name);
|
||||
fprintf(stderr, "\tTry one of these:");
|
||||
pp = statics.order_names;
|
||||
while (*pp != NULL)
|
||||
{
|
||||
fprintf(stderr, " %s", *pp++);
|
||||
}
|
||||
fputc('\n', stderr);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef no_initialization_needed
|
||||
/* initialize the hashing stuff */
|
||||
if (do_unames)
|
||||
{
|
||||
init_hash();
|
||||
}
|
||||
#endif
|
||||
|
||||
/* initialize termcap */
|
||||
init_termcap(interactive);
|
||||
|
||||
/* get the string to use for the process area header */
|
||||
header_text = format_header(uname_field);
|
||||
|
||||
/* initialize display interface */
|
||||
if ((max_topn = display_init(&statics)) == -1)
|
||||
{
|
||||
fprintf(stderr, "%s: can't allocate sufficient memory\n", myname);
|
||||
exit(4);
|
||||
}
|
||||
|
||||
/* print warning if user requested more processes than we can display */
|
||||
if (topn > max_topn)
|
||||
{
|
||||
fprintf(stderr,
|
||||
"%s: warning: this terminal can only display %d processes.\n",
|
||||
myname, max_topn);
|
||||
warnings++;
|
||||
}
|
||||
|
||||
/* adjust for topn == Infinity */
|
||||
if (topn == Infinity)
|
||||
{
|
||||
/*
|
||||
* For smart terminals, infinity really means everything that can
|
||||
* be displayed, or Largest.
|
||||
* On dumb terminals, infinity means every process in the system!
|
||||
* We only really want to do that if it was explicitly specified.
|
||||
* This is always the case when "Default_TOPN != Infinity". But if
|
||||
* topn wasn't explicitly specified and we are on a dumb terminal
|
||||
* and the default is Infinity, then (and only then) we use
|
||||
* "Nominal_TOPN" instead.
|
||||
*/
|
||||
#if Default_TOPN == Infinity
|
||||
topn = smart_terminal ? Largest :
|
||||
(topn_specified ? Largest : Nominal_TOPN);
|
||||
#else
|
||||
topn = Largest;
|
||||
#endif
|
||||
}
|
||||
|
||||
/* set header display accordingly */
|
||||
display_header(topn > 0);
|
||||
|
||||
/* determine interactive state */
|
||||
if (interactive == Maybe)
|
||||
{
|
||||
interactive = smart_terminal;
|
||||
}
|
||||
|
||||
/* if # of displays not specified, fill it in */
|
||||
if (displays == 0)
|
||||
{
|
||||
displays = smart_terminal ? Infinity : 1;
|
||||
}
|
||||
|
||||
/* hold interrupt signals while setting up the screen and the handlers */
|
||||
#ifdef SIGHOLD
|
||||
sighold(SIGINT);
|
||||
sighold(SIGQUIT);
|
||||
sighold(SIGTSTP);
|
||||
#else
|
||||
old_sigmask = sigblock(Smask(SIGINT) | Smask(SIGQUIT) | Smask(SIGTSTP));
|
||||
#endif
|
||||
init_screen();
|
||||
(void) signal(SIGINT, leave);
|
||||
(void) signal(SIGQUIT, leave);
|
||||
(void) signal(SIGTSTP, tstop);
|
||||
#ifdef SIGWINCH
|
||||
(void) signal(SIGWINCH, winch);
|
||||
#endif
|
||||
#ifdef SIGRELSE
|
||||
sigrelse(SIGINT);
|
||||
sigrelse(SIGQUIT);
|
||||
sigrelse(SIGTSTP);
|
||||
#else
|
||||
(void) sigsetmask(old_sigmask);
|
||||
#endif
|
||||
if (warnings)
|
||||
{
|
||||
fputs("....", stderr);
|
||||
fflush(stderr); /* why must I do this? */
|
||||
sleep((unsigned)(3 * warnings));
|
||||
fputc('\n', stderr);
|
||||
}
|
||||
|
||||
/* setup the jump buffer for stops */
|
||||
if (setjmp(jmp_int) != 0)
|
||||
{
|
||||
/* control ends up here after an interrupt */
|
||||
reset_display();
|
||||
}
|
||||
|
||||
/*
|
||||
* main loop -- repeat while display count is positive or while it
|
||||
* indicates infinity (by being -1)
|
||||
*/
|
||||
|
||||
while ((displays == -1) || (displays-- > 0))
|
||||
{
|
||||
/* get the current stats */
|
||||
get_system_info(&system_info);
|
||||
|
||||
/* get the current set of processes */
|
||||
processes =
|
||||
get_process_info(&system_info,
|
||||
&ps,
|
||||
#ifdef ORDER
|
||||
proc_compares[order_index]);
|
||||
#else
|
||||
proc_compare);
|
||||
#endif
|
||||
|
||||
/* display the load averages */
|
||||
(*d_loadave)(system_info.last_pid,
|
||||
system_info.load_avg);
|
||||
|
||||
/* display the current time */
|
||||
/* this method of getting the time SHOULD be fairly portable */
|
||||
time(&curr_time);
|
||||
i_timeofday(&curr_time);
|
||||
|
||||
/* display process state breakdown */
|
||||
(*d_procstates)(system_info.p_total,
|
||||
system_info.procstates);
|
||||
|
||||
/* display the cpu state percentage breakdown */
|
||||
if (dostates) /* but not the first time */
|
||||
{
|
||||
(*d_cpustates)(system_info.cpustates);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* we'll do it next time */
|
||||
if (smart_terminal)
|
||||
{
|
||||
z_cpustates();
|
||||
}
|
||||
else
|
||||
{
|
||||
putchar('\n');
|
||||
}
|
||||
dostates = Yes;
|
||||
}
|
||||
|
||||
/* display memory stats */
|
||||
(*d_memory)(system_info.memory);
|
||||
|
||||
/* handle message area */
|
||||
(*d_message)();
|
||||
|
||||
/* update the header area */
|
||||
(*d_header)(header_text);
|
||||
|
||||
if (topn > 0)
|
||||
{
|
||||
/* determine number of processes to actually display */
|
||||
/* this number will be the smallest of: active processes,
|
||||
number user requested, number current screen accomodates */
|
||||
active_procs = system_info.p_active;
|
||||
if (active_procs > topn)
|
||||
{
|
||||
active_procs = topn;
|
||||
}
|
||||
if (active_procs > max_topn)
|
||||
{
|
||||
active_procs = max_topn;
|
||||
}
|
||||
|
||||
/* now show the top "n" processes. */
|
||||
for (i = 0; i < active_procs; i++)
|
||||
{
|
||||
(*d_process)(i, format_next_process(processes, get_userid));
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
i = 0;
|
||||
}
|
||||
|
||||
/* do end-screen processing */
|
||||
u_endscreen(i);
|
||||
|
||||
/* now, flush the output buffer */
|
||||
fflush(stdout);
|
||||
|
||||
/* only do the rest if we have more displays to show */
|
||||
if (displays)
|
||||
{
|
||||
/* switch out for new display on smart terminals */
|
||||
if (smart_terminal)
|
||||
{
|
||||
if (overstrike)
|
||||
{
|
||||
reset_display();
|
||||
}
|
||||
else
|
||||
{
|
||||
d_loadave = u_loadave;
|
||||
d_procstates = u_procstates;
|
||||
d_cpustates = u_cpustates;
|
||||
d_memory = u_memory;
|
||||
d_message = u_message;
|
||||
d_header = u_header;
|
||||
d_process = u_process;
|
||||
}
|
||||
}
|
||||
|
||||
no_command = Yes;
|
||||
if (!interactive)
|
||||
{
|
||||
/* set up alarm */
|
||||
(void) signal(SIGALRM, onalrm);
|
||||
(void) alarm((unsigned)delay);
|
||||
|
||||
/* wait for the rest of it .... */
|
||||
pause();
|
||||
}
|
||||
else while (no_command)
|
||||
{
|
||||
/* assume valid command unless told otherwise */
|
||||
no_command = No;
|
||||
|
||||
/* set up arguments for select with timeout */
|
||||
FD_ZERO(&readfds);
|
||||
FD_SET(1, &readfds); /* for standard input */
|
||||
timeout.tv_sec = delay;
|
||||
timeout.tv_usec = 0;
|
||||
|
||||
/* wait for either input or the end of the delay period */
|
||||
if (select(32, &readfds, (fd_set *)NULL, (fd_set *)NULL, &timeout) > 0)
|
||||
{
|
||||
int newval;
|
||||
char *errmsg;
|
||||
|
||||
/* something to read -- clear the message area first */
|
||||
clear_message();
|
||||
|
||||
/* now read it and convert to command strchr */
|
||||
/* (use "change" as a temporary to hold strchr) */
|
||||
(void) read(0, &ch, 1);
|
||||
if ((iptr = strchr(command_chars, ch)) == NULL)
|
||||
{
|
||||
/* illegal command */
|
||||
new_message(MT_standout, " Command not understood");
|
||||
putchar('\r');
|
||||
no_command = Yes;
|
||||
}
|
||||
else
|
||||
{
|
||||
change = iptr - command_chars;
|
||||
if (overstrike && change > CMD_OSLIMIT)
|
||||
{
|
||||
/* error */
|
||||
new_message(MT_standout,
|
||||
" Command cannot be handled by this terminal");
|
||||
putchar('\r');
|
||||
no_command = Yes;
|
||||
}
|
||||
else switch(change)
|
||||
{
|
||||
case CMD_redraw: /* redraw screen */
|
||||
reset_display();
|
||||
break;
|
||||
|
||||
case CMD_update: /* merely update display */
|
||||
/* is the load average high? */
|
||||
if (system_info.load_avg[0] > LoadMax)
|
||||
{
|
||||
/* yes, go home for visual feedback */
|
||||
go_home();
|
||||
fflush(stdout);
|
||||
}
|
||||
break;
|
||||
|
||||
case CMD_quit: /* quit */
|
||||
quit(0);
|
||||
/*NOTREACHED*/
|
||||
break;
|
||||
|
||||
case CMD_help1: /* help */
|
||||
case CMD_help2:
|
||||
reset_display();
|
||||
clear();
|
||||
show_help();
|
||||
standout("Hit any key to continue: ");
|
||||
fflush(stdout);
|
||||
(void) read(0, &ch, 1);
|
||||
break;
|
||||
|
||||
case CMD_errors: /* show errors */
|
||||
if (error_count() == 0)
|
||||
{
|
||||
new_message(MT_standout,
|
||||
" Currently no errors to report.");
|
||||
putchar('\r');
|
||||
no_command = Yes;
|
||||
}
|
||||
else
|
||||
{
|
||||
reset_display();
|
||||
clear();
|
||||
show_errors();
|
||||
standout("Hit any key to continue: ");
|
||||
fflush(stdout);
|
||||
(void) read(0, &ch, 1);
|
||||
}
|
||||
break;
|
||||
|
||||
case CMD_number1: /* new number */
|
||||
case CMD_number2:
|
||||
new_message(MT_standout,
|
||||
"Number of processes to show: ");
|
||||
newval = readline(tempbuf1, 8, Yes);
|
||||
if (newval > -1)
|
||||
{
|
||||
if (newval > max_topn)
|
||||
{
|
||||
new_message(MT_standout | MT_delayed,
|
||||
" This terminal can only display %d processes.",
|
||||
max_topn);
|
||||
putchar('\r');
|
||||
}
|
||||
|
||||
if (newval == 0)
|
||||
{
|
||||
/* inhibit the header */
|
||||
display_header(No);
|
||||
}
|
||||
else if (newval > topn && topn == 0)
|
||||
{
|
||||
/* redraw the header */
|
||||
display_header(Yes);
|
||||
d_header = i_header;
|
||||
}
|
||||
topn = newval;
|
||||
}
|
||||
break;
|
||||
|
||||
case CMD_delay: /* new seconds delay */
|
||||
new_message(MT_standout, "Seconds to delay: ");
|
||||
if ((i = readline(tempbuf1, 8, Yes)) > -1)
|
||||
{
|
||||
delay = i;
|
||||
}
|
||||
clear_message();
|
||||
break;
|
||||
|
||||
case CMD_displays: /* change display count */
|
||||
new_message(MT_standout,
|
||||
"Displays to show (currently %s): ",
|
||||
displays == -1 ? "infinite" :
|
||||
itoa(displays));
|
||||
if ((i = readline(tempbuf1, 10, Yes)) > 0)
|
||||
{
|
||||
displays = i;
|
||||
}
|
||||
else if (i == 0)
|
||||
{
|
||||
quit(0);
|
||||
}
|
||||
clear_message();
|
||||
break;
|
||||
|
||||
case CMD_kill: /* kill program */
|
||||
new_message(0, "kill ");
|
||||
if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
|
||||
{
|
||||
if ((errmsg = kill_procs(tempbuf2)) != NULL)
|
||||
{
|
||||
new_message(MT_standout, errmsg);
|
||||
putchar('\r');
|
||||
no_command = Yes;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
clear_message();
|
||||
}
|
||||
break;
|
||||
|
||||
case CMD_renice: /* renice program */
|
||||
new_message(0, "renice ");
|
||||
if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
|
||||
{
|
||||
if ((errmsg = renice_procs(tempbuf2)) != NULL)
|
||||
{
|
||||
new_message(MT_standout, errmsg);
|
||||
putchar('\r');
|
||||
no_command = Yes;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
clear_message();
|
||||
}
|
||||
break;
|
||||
|
||||
case CMD_idletog:
|
||||
case CMD_idletog2:
|
||||
ps.idle = !ps.idle;
|
||||
new_message(MT_standout | MT_delayed,
|
||||
" %sisplaying idle processes.",
|
||||
ps.idle ? "D" : "Not d");
|
||||
putchar('\r');
|
||||
break;
|
||||
|
||||
case CMD_user:
|
||||
new_message(MT_standout,
|
||||
"Username to show: ");
|
||||
if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
|
||||
{
|
||||
if (tempbuf2[0] == '+' &&
|
||||
tempbuf2[1] == '\0')
|
||||
{
|
||||
ps.uid = -1;
|
||||
}
|
||||
else if ((i = userid(tempbuf2)) == -1)
|
||||
{
|
||||
new_message(MT_standout,
|
||||
" %s: unknown user", tempbuf2);
|
||||
no_command = Yes;
|
||||
}
|
||||
else
|
||||
{
|
||||
ps.uid = i;
|
||||
}
|
||||
putchar('\r');
|
||||
}
|
||||
else
|
||||
{
|
||||
clear_message();
|
||||
}
|
||||
break;
|
||||
|
||||
#ifdef ORDER
|
||||
case CMD_order:
|
||||
new_message(MT_standout,
|
||||
"Order to sort: ");
|
||||
if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
|
||||
{
|
||||
if ((i = string_index(tempbuf2, statics.order_names)) == -1)
|
||||
{
|
||||
new_message(MT_standout,
|
||||
" %s: unrecognized sorting order", tempbuf2);
|
||||
no_command = Yes;
|
||||
}
|
||||
else
|
||||
{
|
||||
order_index = i;
|
||||
}
|
||||
putchar('\r');
|
||||
}
|
||||
else
|
||||
{
|
||||
clear_message();
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
|
||||
default:
|
||||
new_message(MT_standout, " BAD CASE IN SWITCH!");
|
||||
putchar('\r');
|
||||
}
|
||||
}
|
||||
|
||||
/* flush out stuff that may have been written */
|
||||
fflush(stdout);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
quit(0);
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
/*
|
||||
* reset_display() - reset all the display routine pointers so that entire
|
||||
* screen will get redrawn.
|
||||
*/
|
||||
|
||||
reset_display()
|
||||
|
||||
{
|
||||
d_loadave = i_loadave;
|
||||
d_procstates = i_procstates;
|
||||
d_cpustates = i_cpustates;
|
||||
d_memory = i_memory;
|
||||
d_message = i_message;
|
||||
d_header = i_header;
|
||||
d_process = i_process;
|
||||
}
|
||||
|
||||
/*
|
||||
* signal handlers
|
||||
*/
|
||||
|
||||
sigret_t leave() /* exit under normal conditions -- INT handler */
|
||||
|
||||
{
|
||||
end_screen();
|
||||
exit(0);
|
||||
}
|
||||
|
||||
sigret_t tstop(i) /* SIGTSTP handler */
|
||||
|
||||
int i;
|
||||
|
||||
{
|
||||
/* move to the lower left */
|
||||
end_screen();
|
||||
fflush(stdout);
|
||||
|
||||
/* default the signal handler action */
|
||||
(void) signal(SIGTSTP, SIG_DFL);
|
||||
|
||||
/* unblock the signal and send ourselves one */
|
||||
#ifdef SIGRELSE
|
||||
sigrelse(SIGTSTP);
|
||||
#else
|
||||
(void) sigsetmask(sigblock(0) & ~(1 << (SIGTSTP - 1)));
|
||||
#endif
|
||||
(void) kill(0, SIGTSTP);
|
||||
|
||||
/* reset the signal handler */
|
||||
(void) signal(SIGTSTP, tstop);
|
||||
|
||||
/* reinit screen */
|
||||
reinit_screen();
|
||||
|
||||
/* jump to appropriate place */
|
||||
longjmp(jmp_int, 1);
|
||||
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
#ifdef SIGWINCH
|
||||
sigret_t winch(i) /* SIGWINCH handler */
|
||||
|
||||
int i;
|
||||
|
||||
{
|
||||
/* reascertain the screen dimensions */
|
||||
get_screensize();
|
||||
|
||||
/* tell display to resize */
|
||||
max_topn = display_resize();
|
||||
|
||||
/* reset the signal handler */
|
||||
(void) signal(SIGWINCH, winch);
|
||||
|
||||
/* jump to appropriate place */
|
||||
longjmp(jmp_int, 1);
|
||||
}
|
||||
#endif
|
||||
|
||||
void quit(status) /* exit under duress */
|
||||
|
||||
int status;
|
||||
|
||||
{
|
||||
end_screen();
|
||||
exit(status);
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
sigret_t onalrm() /* SIGALRM handler */
|
||||
|
||||
{
|
||||
/* this is only used in batch mode to break out of the pause() */
|
||||
/* return; */
|
||||
}
|
||||
|
||||
36
contrib/top/top.h
Normal file
36
contrib/top/top.h
Normal file
@ -0,0 +1,36 @@
|
||||
/*
|
||||
* Top - a top users display for Berkeley Unix
|
||||
*
|
||||
* General (global) definitions
|
||||
*/
|
||||
|
||||
/* Current major version number */
|
||||
#define VERSION 3
|
||||
|
||||
/* Number of lines of header information on the standard screen */
|
||||
#define Header_lines 6
|
||||
|
||||
/* Maximum number of columns allowed for display */
|
||||
#define MAX_COLS 128
|
||||
|
||||
/* Log base 2 of 1024 is 10 (2^10 == 1024) */
|
||||
#define LOG1024 10
|
||||
|
||||
char *itoa();
|
||||
char *itoa7();
|
||||
|
||||
char *version_string();
|
||||
|
||||
/* Special atoi routine returns either a non-negative number or one of: */
|
||||
#define Infinity -1
|
||||
#define Invalid -2
|
||||
|
||||
/* maximum number we can have */
|
||||
#define Largest 0x7fffffff
|
||||
|
||||
/*
|
||||
* The entire display is based on these next numbers being defined as is.
|
||||
*/
|
||||
|
||||
#define NUM_AVERAGES 3
|
||||
|
||||
68
contrib/top/top.local.H
Normal file
68
contrib/top/top.local.H
Normal file
@ -0,0 +1,68 @@
|
||||
/*
|
||||
* Top - a top users display for Berkeley Unix
|
||||
*
|
||||
* Definitions for things that might vary between installations.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The space command forces an immediate update. Sometimes, on loaded
|
||||
* systems, this update will take a significant period of time (because all
|
||||
* the output is buffered). So, if the short-term load average is above
|
||||
* "LoadMax", then top will put the cursor home immediately after the space
|
||||
* is pressed before the next update is attempted. This serves as a visual
|
||||
* acknowledgement of the command. On Suns, "LoadMax" will get multiplied by
|
||||
* "FSCALE" before being compared to avenrun[0]. Therefore, "LoadMax"
|
||||
* should always be specified as a floating point number.
|
||||
*/
|
||||
#ifndef LoadMax
|
||||
#define LoadMax %LoadMax%
|
||||
#endif
|
||||
|
||||
/*
|
||||
* "Table_size" defines the size of the hash tables used to map uid to
|
||||
* username. The number of users in /etc/passwd CANNOT be greater than
|
||||
* this number. If the error message "table overflow: too many users"
|
||||
* is printed by top, then "Table_size" needs to be increased. Things will
|
||||
* work best if the number is a prime number that is about twice the number
|
||||
* of lines in /etc/passwd.
|
||||
*/
|
||||
#ifndef Table_size
|
||||
#define Table_size %TableSize%
|
||||
#endif
|
||||
|
||||
/*
|
||||
* "Nominal_TOPN" is used as the default TOPN when Default_TOPN is Infinity
|
||||
* and the output is a dumb terminal. If we didn't do this, then
|
||||
* installations who use a default TOPN of Infinity will get every
|
||||
* process in the system when running top on a dumb terminal (or redirected
|
||||
* to a file). Note that Nominal_TOPN is a default: it can still be
|
||||
* overridden on the command line, even with the value "infinity".
|
||||
*/
|
||||
#ifndef Nominal_TOPN
|
||||
#define Nominal_TOPN %NominalTopn%
|
||||
#endif
|
||||
|
||||
#ifndef Default_TOPN
|
||||
#define Default_TOPN %topn%
|
||||
#endif
|
||||
|
||||
#ifndef Default_DELAY
|
||||
#define Default_DELAY %delay%
|
||||
#endif
|
||||
|
||||
/*
|
||||
* If the local system's getpwnam interface uses random access to retrieve
|
||||
* a record (i.e.: 4.3 systems, Sun "yellow pages"), then defining
|
||||
* RANDOM_PW will take advantage of that fact. If RANDOM_PW is defined,
|
||||
* then getpwnam is used and the result is cached. If not, then getpwent
|
||||
* is used to read and cache the password entries sequentially until the
|
||||
* desired one is found.
|
||||
*
|
||||
* We initially set RANDOM_PW to something which is controllable by the
|
||||
* Configure script. Then if its value is 0, we undef it.
|
||||
*/
|
||||
|
||||
#define RANDOM_PW %random%
|
||||
#if RANDOM_PW == 0
|
||||
#undef RANDOM_PW
|
||||
#endif
|
||||
185
contrib/top/username.c
Normal file
185
contrib/top/username.c
Normal file
@ -0,0 +1,185 @@
|
||||
/*
|
||||
* Top users/processes display for Unix
|
||||
* Version 3
|
||||
*
|
||||
* This program may be freely redistributed,
|
||||
* but this entire comment MUST remain intact.
|
||||
*
|
||||
* Copyright (c) 1984, 1989, William LeFebvre, Rice University
|
||||
* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
|
||||
*/
|
||||
|
||||
/*
|
||||
* Username translation code for top.
|
||||
*
|
||||
* These routines handle uid to username mapping.
|
||||
* They use a hashing table scheme to reduce reading overhead.
|
||||
* For the time being, these are very straightforward hashing routines.
|
||||
* Maybe someday I'll put in something better. But with the advent of
|
||||
* "random access" password files, it might not be worth the effort.
|
||||
*
|
||||
* Changes to these have been provided by John Gilmore (gnu@toad.com).
|
||||
*
|
||||
* The hash has been simplified in this release, to avoid the
|
||||
* table overflow problems of previous releases. If the value
|
||||
* at the initial hash location is not right, it is replaced
|
||||
* by the right value. Collisions will cause us to call getpw*
|
||||
* but hey, this is a cache, not the Library of Congress.
|
||||
* This makes the table size independent of the passwd file size.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <pwd.h>
|
||||
|
||||
#include "top.local.h"
|
||||
#include "utils.h"
|
||||
|
||||
struct hash_el {
|
||||
int uid;
|
||||
char name[9];
|
||||
};
|
||||
|
||||
#define is_empty_hash(x) (hash_table[x].name[0] == 0)
|
||||
|
||||
/* simple minded hashing function */
|
||||
/* Uid "nobody" is -2 results in hashit(-2) = -2 which is out of bounds for
|
||||
the hash_table. Applied abs() function to fix. 2/16/96 tpugh
|
||||
*/
|
||||
#define hashit(i) (abs(i) % Table_size)
|
||||
|
||||
/* K&R requires that statically declared tables be initialized to zero. */
|
||||
/* We depend on that for hash_table and YOUR compiler had BETTER do it! */
|
||||
struct hash_el hash_table[Table_size];
|
||||
|
||||
init_hash()
|
||||
|
||||
{
|
||||
/*
|
||||
* There used to be some steps we had to take to initialize things.
|
||||
* We don't need to do that anymore, but we will leave this stub in
|
||||
* just in case future changes require initialization steps.
|
||||
*/
|
||||
}
|
||||
|
||||
char *username(uid)
|
||||
|
||||
register int uid;
|
||||
|
||||
{
|
||||
register int hashindex;
|
||||
|
||||
hashindex = hashit(uid);
|
||||
if (is_empty_hash(hashindex) || (hash_table[hashindex].uid != uid))
|
||||
{
|
||||
/* not here or not right -- get it out of passwd */
|
||||
hashindex = get_user(uid);
|
||||
}
|
||||
return(hash_table[hashindex].name);
|
||||
}
|
||||
|
||||
int userid(username)
|
||||
|
||||
char *username;
|
||||
|
||||
{
|
||||
struct passwd *pwd;
|
||||
|
||||
/* Eventually we want this to enter everything in the hash table,
|
||||
but for now we just do it simply and remember just the result.
|
||||
*/
|
||||
|
||||
if ((pwd = getpwnam(username)) == NULL)
|
||||
{
|
||||
return(-1);
|
||||
}
|
||||
|
||||
/* enter the result in the hash table */
|
||||
enter_user(pwd->pw_uid, username, 1);
|
||||
|
||||
/* return our result */
|
||||
return(pwd->pw_uid);
|
||||
}
|
||||
|
||||
int enter_user(uid, name, wecare)
|
||||
|
||||
register int uid;
|
||||
register char *name;
|
||||
int wecare; /* 1 = enter it always, 0 = nice to have */
|
||||
|
||||
{
|
||||
register int hashindex;
|
||||
|
||||
#ifdef DEBUG
|
||||
fprintf(stderr, "enter_hash(%d, %s, %d)\n", uid, name, wecare);
|
||||
#endif
|
||||
|
||||
hashindex = hashit(uid);
|
||||
|
||||
if (!is_empty_hash(hashindex))
|
||||
{
|
||||
if (!wecare)
|
||||
return 0; /* Don't clobber a slot for trash */
|
||||
if (hash_table[hashindex].uid == uid)
|
||||
return(hashindex); /* Fortuitous find */
|
||||
}
|
||||
|
||||
/* empty or wrong slot -- fill it with new value */
|
||||
hash_table[hashindex].uid = uid;
|
||||
(void) strncpy(hash_table[hashindex].name, name, 8);
|
||||
return(hashindex);
|
||||
}
|
||||
|
||||
/*
|
||||
* Get a userid->name mapping from the system.
|
||||
* If the passwd database is hashed (#define RANDOM_PW), we
|
||||
* just handle this uid. Otherwise we scan the passwd file
|
||||
* and cache any entries we pass over while looking.
|
||||
*/
|
||||
|
||||
int get_user(uid)
|
||||
|
||||
register int uid;
|
||||
|
||||
{
|
||||
struct passwd *pwd;
|
||||
|
||||
#ifdef RANDOM_PW
|
||||
/* no performance penalty for using getpwuid makes it easy */
|
||||
if ((pwd = getpwuid(uid)) != NULL)
|
||||
{
|
||||
return(enter_user(pwd->pw_uid, pwd->pw_name, 1));
|
||||
}
|
||||
#else
|
||||
|
||||
int from_start = 0;
|
||||
|
||||
/*
|
||||
* If we just called getpwuid each time, things would be very slow
|
||||
* since that just iterates through the passwd file each time. So,
|
||||
* we walk through the file instead (using getpwent) and cache each
|
||||
* entry as we go. Once the right record is found, we cache it and
|
||||
* return immediately. The next time we come in, getpwent will get
|
||||
* the next record. In theory, we never have to read the passwd file
|
||||
* a second time (because we cache everything we read). But in
|
||||
* practice, the cache may not be large enough, so if we don't find
|
||||
* it the first time we have to scan the file a second time. This
|
||||
* is not very efficient, but it will do for now.
|
||||
*/
|
||||
|
||||
while (from_start++ < 2)
|
||||
{
|
||||
while ((pwd = getpwent()) != NULL)
|
||||
{
|
||||
if (pwd->pw_uid == uid)
|
||||
{
|
||||
return(enter_user(pwd->pw_uid, pwd->pw_name, 1));
|
||||
}
|
||||
(void) enter_user(pwd->pw_uid, pwd->pw_name, 0);
|
||||
}
|
||||
/* try again */
|
||||
setpwent();
|
||||
}
|
||||
#endif
|
||||
/* if we can't find the name at all, then use the uid as the name */
|
||||
return(enter_user(uid, itoa7(uid), 1));
|
||||
}
|
||||
453
contrib/top/utils.c
Normal file
453
contrib/top/utils.c
Normal file
@ -0,0 +1,453 @@
|
||||
/*
|
||||
* Top users/processes display for Unix
|
||||
* Version 3
|
||||
*
|
||||
* This program may be freely redistributed,
|
||||
* but this entire comment MUST remain intact.
|
||||
*
|
||||
* Copyright (c) 1984, 1989, William LeFebvre, Rice University
|
||||
* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file contains various handy utilities used by top.
|
||||
*/
|
||||
|
||||
#include "top.h"
|
||||
#include "os.h"
|
||||
|
||||
int atoiwi(str)
|
||||
|
||||
char *str;
|
||||
|
||||
{
|
||||
register int len;
|
||||
|
||||
len = strlen(str);
|
||||
if (len != 0)
|
||||
{
|
||||
if (strncmp(str, "infinity", len) == 0 ||
|
||||
strncmp(str, "all", len) == 0 ||
|
||||
strncmp(str, "maximum", len) == 0)
|
||||
{
|
||||
return(Infinity);
|
||||
}
|
||||
else if (str[0] == '-')
|
||||
{
|
||||
return(Invalid);
|
||||
}
|
||||
else
|
||||
{
|
||||
return(atoi(str));
|
||||
}
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*
|
||||
* itoa - convert integer (decimal) to ascii string for positive numbers
|
||||
* only (we don't bother with negative numbers since we know we
|
||||
* don't use them).
|
||||
*/
|
||||
|
||||
/*
|
||||
* How do we know that 16 will suffice?
|
||||
* Because the biggest number that we will
|
||||
* ever convert will be 2^32-1, which is 10
|
||||
* digits.
|
||||
*/
|
||||
|
||||
char *itoa(val)
|
||||
|
||||
register int val;
|
||||
|
||||
{
|
||||
register char *ptr;
|
||||
static char buffer[16]; /* result is built here */
|
||||
/* 16 is sufficient since the largest number
|
||||
we will ever convert will be 2^32-1,
|
||||
which is 10 digits. */
|
||||
|
||||
ptr = buffer + sizeof(buffer);
|
||||
*--ptr = '\0';
|
||||
if (val == 0)
|
||||
{
|
||||
*--ptr = '0';
|
||||
}
|
||||
else while (val != 0)
|
||||
{
|
||||
*--ptr = (val % 10) + '0';
|
||||
val /= 10;
|
||||
}
|
||||
return(ptr);
|
||||
}
|
||||
|
||||
/*
|
||||
* itoa7(val) - like itoa, except the number is right justified in a 7
|
||||
* character field. This code is a duplication of itoa instead of
|
||||
* a front end to a more general routine for efficiency.
|
||||
*/
|
||||
|
||||
char *itoa7(val)
|
||||
|
||||
register int val;
|
||||
|
||||
{
|
||||
register char *ptr;
|
||||
static char buffer[16]; /* result is built here */
|
||||
/* 16 is sufficient since the largest number
|
||||
we will ever convert will be 2^32-1,
|
||||
which is 10 digits. */
|
||||
|
||||
ptr = buffer + sizeof(buffer);
|
||||
*--ptr = '\0';
|
||||
if (val == 0)
|
||||
{
|
||||
*--ptr = '0';
|
||||
}
|
||||
else while (val != 0)
|
||||
{
|
||||
*--ptr = (val % 10) + '0';
|
||||
val /= 10;
|
||||
}
|
||||
while (ptr > buffer + sizeof(buffer) - 7)
|
||||
{
|
||||
*--ptr = ' ';
|
||||
}
|
||||
return(ptr);
|
||||
}
|
||||
|
||||
/*
|
||||
* digits(val) - return number of decimal digits in val. Only works for
|
||||
* positive numbers. If val <= 0 then digits(val) == 0.
|
||||
*/
|
||||
|
||||
int digits(val)
|
||||
|
||||
int val;
|
||||
|
||||
{
|
||||
register int cnt = 0;
|
||||
|
||||
while (val > 0)
|
||||
{
|
||||
cnt++;
|
||||
val /= 10;
|
||||
}
|
||||
return(cnt);
|
||||
}
|
||||
|
||||
/*
|
||||
* strecpy(to, from) - copy string "from" into "to" and return a pointer
|
||||
* to the END of the string "to".
|
||||
*/
|
||||
|
||||
char *strecpy(to, from)
|
||||
|
||||
register char *to;
|
||||
register char *from;
|
||||
|
||||
{
|
||||
while ((*to++ = *from++) != '\0');
|
||||
return(--to);
|
||||
}
|
||||
|
||||
/*
|
||||
* string_index(string, array) - find string in array and return index
|
||||
*/
|
||||
|
||||
int string_index(string, array)
|
||||
|
||||
char *string;
|
||||
char **array;
|
||||
|
||||
{
|
||||
register int i = 0;
|
||||
|
||||
while (*array != NULL)
|
||||
{
|
||||
if (strcmp(string, *array) == 0)
|
||||
{
|
||||
return(i);
|
||||
}
|
||||
array++;
|
||||
i++;
|
||||
}
|
||||
return(-1);
|
||||
}
|
||||
|
||||
/*
|
||||
* argparse(line, cntp) - parse arguments in string "line", separating them
|
||||
* out into an argv-like array, and setting *cntp to the number of
|
||||
* arguments encountered. This is a simple parser that doesn't understand
|
||||
* squat about quotes.
|
||||
*/
|
||||
|
||||
char **argparse(line, cntp)
|
||||
|
||||
char *line;
|
||||
int *cntp;
|
||||
|
||||
{
|
||||
register char *from;
|
||||
register char *to;
|
||||
register int cnt;
|
||||
register int ch;
|
||||
int length;
|
||||
int lastch;
|
||||
register char **argv;
|
||||
char **argarray;
|
||||
char *args;
|
||||
|
||||
/* unfortunately, the only real way to do this is to go thru the
|
||||
input string twice. */
|
||||
|
||||
/* step thru the string counting the white space sections */
|
||||
from = line;
|
||||
lastch = cnt = length = 0;
|
||||
while ((ch = *from++) != '\0')
|
||||
{
|
||||
length++;
|
||||
if (ch == ' ' && lastch != ' ')
|
||||
{
|
||||
cnt++;
|
||||
}
|
||||
lastch = ch;
|
||||
}
|
||||
|
||||
/* add three to the count: one for the initial "dummy" argument,
|
||||
one for the last argument and one for NULL */
|
||||
cnt += 3;
|
||||
|
||||
/* allocate a char * array to hold the pointers */
|
||||
argarray = (char **)malloc(cnt * sizeof(char *));
|
||||
|
||||
/* allocate another array to hold the strings themselves */
|
||||
args = (char *)malloc(length+2);
|
||||
|
||||
/* initialization for main loop */
|
||||
from = line;
|
||||
to = args;
|
||||
argv = argarray;
|
||||
lastch = '\0';
|
||||
|
||||
/* create a dummy argument to keep getopt happy */
|
||||
*argv++ = to;
|
||||
*to++ = '\0';
|
||||
cnt = 2;
|
||||
|
||||
/* now build argv while copying characters */
|
||||
*argv++ = to;
|
||||
while ((ch = *from++) != '\0')
|
||||
{
|
||||
if (ch != ' ')
|
||||
{
|
||||
if (lastch == ' ')
|
||||
{
|
||||
*to++ = '\0';
|
||||
*argv++ = to;
|
||||
cnt++;
|
||||
}
|
||||
*to++ = ch;
|
||||
}
|
||||
lastch = ch;
|
||||
}
|
||||
*to++ = '\0';
|
||||
|
||||
/* set cntp and return the allocated array */
|
||||
*cntp = cnt;
|
||||
return(argarray);
|
||||
}
|
||||
|
||||
/*
|
||||
* percentages(cnt, out, new, old, diffs) - calculate percentage change
|
||||
* between array "old" and "new", putting the percentages i "out".
|
||||
* "cnt" is size of each array and "diffs" is used for scratch space.
|
||||
* The array "old" is updated on each call.
|
||||
* The routine assumes modulo arithmetic. This function is especially
|
||||
* useful on BSD mchines for calculating cpu state percentages.
|
||||
*/
|
||||
|
||||
long percentages(cnt, out, new, old, diffs)
|
||||
|
||||
int cnt;
|
||||
int *out;
|
||||
register long *new;
|
||||
register long *old;
|
||||
long *diffs;
|
||||
|
||||
{
|
||||
register int i;
|
||||
register long change;
|
||||
register long total_change;
|
||||
register long *dp;
|
||||
long half_total;
|
||||
|
||||
/* initialization */
|
||||
total_change = 0;
|
||||
dp = diffs;
|
||||
|
||||
/* calculate changes for each state and the overall change */
|
||||
for (i = 0; i < cnt; i++)
|
||||
{
|
||||
if ((change = *new - *old) < 0)
|
||||
{
|
||||
/* this only happens when the counter wraps */
|
||||
change = (int)
|
||||
((unsigned long)*new-(unsigned long)*old);
|
||||
}
|
||||
total_change += (*dp++ = change);
|
||||
*old++ = *new++;
|
||||
}
|
||||
|
||||
/* avoid divide by zero potential */
|
||||
if (total_change == 0)
|
||||
{
|
||||
total_change = 1;
|
||||
}
|
||||
|
||||
/* calculate percentages based on overall change, rounding up */
|
||||
half_total = total_change / 2l;
|
||||
for (i = 0; i < cnt; i++)
|
||||
{
|
||||
*out++ = (int)((*diffs++ * 1000 + half_total) / total_change);
|
||||
}
|
||||
|
||||
/* return the total in case the caller wants to use it */
|
||||
return(total_change);
|
||||
}
|
||||
|
||||
/*
|
||||
* errmsg(errnum) - return an error message string appropriate to the
|
||||
* error number "errnum". This is a substitute for the System V
|
||||
* function "strerror" with one important difference: the string
|
||||
* returned by this function does NOT end in a newline!
|
||||
* N.B.: there appears to be no reliable way to determine if
|
||||
* "strerror" exists at compile time, so I make do by providing
|
||||
* something of similar functionality.
|
||||
*/
|
||||
|
||||
/* externs referenced by errmsg */
|
||||
|
||||
extern char *sys_errlist[];
|
||||
extern int sys_nerr;
|
||||
|
||||
char *errmsg(errnum)
|
||||
|
||||
int errnum;
|
||||
|
||||
{
|
||||
if (errnum > 0 && errnum < sys_nerr)
|
||||
{
|
||||
return(sys_errlist[errnum]);
|
||||
}
|
||||
return("No error");
|
||||
}
|
||||
|
||||
/* format_time(seconds) - format number of seconds into a suitable
|
||||
* display that will fit within 6 characters. Note that this
|
||||
* routine builds its string in a static area. If it needs
|
||||
* to be called more than once without overwriting previous data,
|
||||
* then we will need to adopt a technique similar to the
|
||||
* one used for format_k.
|
||||
*/
|
||||
|
||||
/* Explanation:
|
||||
We want to keep the output within 6 characters. For low values we use
|
||||
the format mm:ss. For values that exceed 999:59, we switch to a format
|
||||
that displays hours and fractions: hhh.tH. For values that exceed
|
||||
999.9, we use hhhh.t and drop the "H" designator. For values that
|
||||
exceed 9999.9, we use "???".
|
||||
*/
|
||||
|
||||
char *format_time(seconds)
|
||||
|
||||
long seconds;
|
||||
|
||||
{
|
||||
register int value;
|
||||
register int digit;
|
||||
register char *ptr;
|
||||
static char result[10];
|
||||
|
||||
/* sanity protection */
|
||||
if (seconds < 0 || seconds > (99999l * 360l))
|
||||
{
|
||||
strcpy(result, " ???");
|
||||
}
|
||||
else if (seconds >= (1000l * 60l))
|
||||
{
|
||||
/* alternate (slow) method displaying hours and tenths */
|
||||
sprintf(result, "%5.1fH", (double)seconds / (double)(60l * 60l));
|
||||
|
||||
/* It is possible that the sprintf took more than 6 characters.
|
||||
If so, then the "H" appears as result[6]. If not, then there
|
||||
is a \0 in result[6]. Either way, it is safe to step on.
|
||||
*/
|
||||
result[6] = '\0';
|
||||
}
|
||||
else
|
||||
{
|
||||
/* standard method produces MMM:SS */
|
||||
/* we avoid printf as must as possible to make this quick */
|
||||
sprintf(result, "%3d:%02d", seconds / 60l, seconds % 60l);
|
||||
}
|
||||
return(result);
|
||||
}
|
||||
|
||||
/*
|
||||
* format_k(amt) - format a kilobyte memory value, returning a string
|
||||
* suitable for display. Returns a pointer to a static
|
||||
* area that changes each call. "amt" is converted to a
|
||||
* string with a trailing "K". If "amt" is 10000 or greater,
|
||||
* then it is formatted as megabytes (rounded) with a
|
||||
* trailing "M".
|
||||
*/
|
||||
|
||||
/*
|
||||
* Compromise time. We need to return a string, but we don't want the
|
||||
* caller to have to worry about freeing a dynamically allocated string.
|
||||
* Unfortunately, we can't just return a pointer to a static area as one
|
||||
* of the common uses of this function is in a large call to sprintf where
|
||||
* it might get invoked several times. Our compromise is to maintain an
|
||||
* array of strings and cycle thru them with each invocation. We make the
|
||||
* array large enough to handle the above mentioned case. The constant
|
||||
* NUM_STRINGS defines the number of strings in this array: we can tolerate
|
||||
* up to NUM_STRINGS calls before we start overwriting old information.
|
||||
* Keeping NUM_STRINGS a power of two will allow an intelligent optimizer
|
||||
* to convert the modulo operation into something quicker. What a hack!
|
||||
*/
|
||||
|
||||
#define NUM_STRINGS 8
|
||||
|
||||
char *format_k(amt)
|
||||
|
||||
int amt;
|
||||
|
||||
{
|
||||
static char retarray[NUM_STRINGS][16];
|
||||
static int index = 0;
|
||||
register char *p;
|
||||
register char *ret;
|
||||
register char tag = 'K';
|
||||
|
||||
p = ret = retarray[index];
|
||||
index = (index + 1) % NUM_STRINGS;
|
||||
|
||||
if (amt >= 10000)
|
||||
{
|
||||
amt = (amt + 512) / 1024;
|
||||
tag = 'M';
|
||||
if (amt >= 10000)
|
||||
{
|
||||
amt = (amt + 512) / 1024;
|
||||
tag = 'G';
|
||||
}
|
||||
}
|
||||
|
||||
p = strecpy(p, itoa(amt));
|
||||
*p++ = tag;
|
||||
*p = '\0';
|
||||
|
||||
return(ret);
|
||||
}
|
||||
23
contrib/top/utils.h
Normal file
23
contrib/top/utils.h
Normal file
@ -0,0 +1,23 @@
|
||||
/*
|
||||
* Top users/processes display for Unix
|
||||
* Version 3
|
||||
*
|
||||
* This program may be freely redistributed,
|
||||
* but this entire comment MUST remain intact.
|
||||
*
|
||||
* Copyright (c) 1984, 1989, William LeFebvre, Rice University
|
||||
* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
|
||||
*/
|
||||
|
||||
/* prototypes for functions found in utils.c */
|
||||
|
||||
int atoiwi();
|
||||
char *itoa();
|
||||
char *itoa7();
|
||||
int digits();
|
||||
char *strecpy();
|
||||
char **argparse();
|
||||
long percentages();
|
||||
char *errmsg();
|
||||
char *format_time();
|
||||
char *format_k();
|
||||
25
contrib/top/version.c
Normal file
25
contrib/top/version.c
Normal file
@ -0,0 +1,25 @@
|
||||
/*
|
||||
* Top users/processes display for Unix
|
||||
* Version 3
|
||||
*
|
||||
* This program may be freely redistributed,
|
||||
* but this entire comment MUST remain intact.
|
||||
*
|
||||
* Copyright (c) 1984, 1989, William LeFebvre, Rice University
|
||||
* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
|
||||
*/
|
||||
|
||||
#include "top.h"
|
||||
#include "patchlevel.h"
|
||||
|
||||
static char version[16];
|
||||
|
||||
char *version_string()
|
||||
|
||||
{
|
||||
sprintf(version, "%d.%d", VERSION, PATCHLEVEL);
|
||||
#ifdef BETA
|
||||
strcat(version, BETA);
|
||||
#endif
|
||||
return(version);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user