freebsd-dev/lib/libc/db
Daniel Eischen d201fe46e3 Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions.  If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
	__sys_foo - actual system call
	_foo - weak definition to __sys_foo
	foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo.  In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde).  All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes.  <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h  namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE.  We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by:	-arch
2001-01-24 13:01:12 +00:00
..
btree Remove _THREAD_SAFE and make libc thread-safe by default by 2001-01-24 13:01:12 +00:00
db $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
docs $Header$ -> $FreeBSD$ 1999-08-28 05:11:36 +00:00
hash Remove _THREAD_SAFE and make libc thread-safe by default by 2001-01-24 13:01:12 +00:00
man man(7) -> mdoc(7). 2001-01-11 20:07:30 +00:00
mpool Remove _THREAD_SAFE and make libc thread-safe by default by 2001-01-24 13:01:12 +00:00
recno Remove _THREAD_SAFE and make libc thread-safe by default by 2001-01-24 13:01:12 +00:00
test Prevent TMPDIR overflow. 2000-08-04 10:50:21 +00:00
changelog Fix conflicts and merge into mainline 1996-02-27 19:42:00 +00:00
Makefile.inc $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
README Fix conflicts and merge into mainline 1996-02-27 19:42:00 +00:00

#	@(#)README	8.27 (Berkeley) 9/1/94

This is version 1.85 of the Berkeley DB code.

For information on compiling and installing this software, see the file
PORT/README.

Newer versions of this software will periodically be made available by
anonymous ftp from ftp.cs.berkeley.edu.  An archive in compressed format
is in ucb/4bsd/db.tar.Z, or in gzip format in ucb/4bsd/db.tar.gz.  If
you'd like to receive announcements of future releases of this software,
send email to the contact address below.

Email questions may be addressed to Keith Bostic at bostic@cs.berkeley.edu.

============================================
Distribution contents:

Makefile.inc	Ignore this, it's the 4.4BSD subsystem Makefile.
PORT		The per OS/architecture directories to use to build
		libdb.a, if you're not running 4.4BSD.  See the file
		PORT/README for more information.
README		This file.
btree		The B+tree routines.
changelog	List of changes, per version.
db		The dbopen(3) interface routine.
docs		Various USENIX papers, and the formatted manual pages.
hash		The extended linear hashing routines.
man		The unformatted manual pages.
mpool		The memory pool routines.
recno		The fixed/variable length record routines.
test		Test package.

============================================
Debugging:

If you're running a memory checker (e.g. Purify) on DB, make sure that
you recompile it with "-DPURIFY" in the CFLAGS, first.  By default,
allocated pages are not initialized by the DB code, and they will show
up as reads of uninitialized memory in the buffer write routines.