prototypes for the spinlock functions that will be used for thread locks.
libc will have stubs declared with weak symbols. libpthread and libc_r
will have functions that really do something.
Changes to support building with _POSIX_SOURCE set to 199309L:
1. Add sys/_posix.h to handle those preprocessor defs that POSIX
says have effects when defined before including any header files;
2. Change POSIX4_VISIBLE back to _POSIX4_VISIBLE
3. Add _POSIX4_VISIBLE_HISTORICALLY for pre-existing BSD features now
defined in POSIX. These show up when:
_POSIX_SOURCE and _POSIX_C_SOURCE are not set or
_POSIX_C_SOURCE is set >= 199309L
and vanish when:
_POSIX_SOURCE is set or _POSIX_C_SOURCE is < 199309L.
4. Explain these in man 9 posix4;
5. Include _posix.h and conditionalize on new feature test.
- Completely recoded the ypmatch cache code. The old code could leak
memory: it would allow the cache to grow, but never
shrink. The new code imposes the following limits:
o The cache is capped at a limit of 5 entries.
o Each entry expires after five seconds, at which point
its slot is freed.
o If an insertion is to be done and all five slots
are filled, the oldest entry is forcibly expired
to release its slot.
Also, the cache is implemented on a per-binding basis rather than
having a global cache covering all bindings. This means that each
bound domain has its own 5 slot cache.
- Changed clntudp_create() to clntudp_bufcreate() so that the
xmit/recv message buffer sizes can be set explicitly. NIS transactions
are rarely much larger than 1024 bytes since YPMAXRECORD is 1024.
The defaults chosen by clntudb_create() are actually much larger
than needed. I set the xmit buffer to a little over 1024 and the
recv buffer to a little over 2048. This saves a few Kbytes for each
NIS binding.
- Add my name to the copyright. I think I've made enough changes to
this file to merit it. :)
Note: these changes should go into the 2.2.x branch, but I'm waiting
on feedback from a tester to see if the cache fixes solve the reported
memory leak problem.
fix a slight confusion about which draft of threads we are supporting.
this allows something as big and ugly as samba to be compiled with libc_r
and still work! our user-level pthreads seems amazingly robust!
implement mkdtemp
improve man page for mk*temp
use arc4random to seed extra XXX's randomly
Optionally warn of unsafe mktemp uses
From various commits by theo de raadt and Todd Miller.
Obtained from: OpenBSD
This should go into 2.2 after a testing period.
one group. Thanks to Dirk Froemberg for supplying a patch for this. I will
be closing out the PR and moving this to the 2.2.5 branch later: my login
sessions to freefall from Columbia are ridiculously spotty today.
PR: 5610
Submitted by: Dirk Froemberg <ibex@physik.TU-Berlin.DE>
into libc. This reduces the size of every dynamically linked
executable by 248 bytes, and it reduces the size of static executables
by a lesser amount. It also eliminates some global namespace
pollution.
With this change in place, the source for dlfcn.h should probably
be moved to "/usr/src/include". I'll save that for another day.
Compatibility note: Programs which use dlopen, if compiled on
systems with this change, will not run on systems with a libc from
prior to this change. Very few programs use dlopen, so I think
that is OK.
isn't a prerequisite, since it isn't required for the prototypes
and isn't always needed to call the functions (the address family
might be a variable).
