Date: Wed, 1 Sep 2010 03:11:21 +0000 (UTC) From: David Xu <davidxu@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/lib/libthr/thread thr_fork.c thr_init.c thr_mutex.c thr_private.h thr_umtx.c thr_umtx.h Message-ID: <201009010311.o813BdI0088120@repoman.freebsd.org>
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davidxu 2010-09-01 03:11:21 UTC
FreeBSD src repository
Modified files:
lib/libthr/thread thr_fork.c thr_init.c thr_mutex.c
thr_private.h thr_umtx.c thr_umtx.h
Log:
SVN rev 212077 on 2010-09-01 03:11:21Z by davidxu
Change atfork lock from mutex to rwlock, also make mutexes used by malloc()
module private type, when private type mutex is locked/unlocked, thread
critical region is entered or leaved. These changes makes fork()
async-signal safe which required by POSIX. Note that user's atfork handler
still needs to be async-signal safe, but it is not problem of libthr, it
is user's responsiblity.
Revision Changes Path
1.18 +22 -19 src/lib/libthr/thread/thr_fork.c
1.54 +2 -2 src/lib/libthr/thread/thr_init.c
1.76 +23 -5 src/lib/libthr/thread/thr_mutex.c
1.105 +2 -1 src/lib/libthr/thread/thr_private.h
1.20 +7 -0 src/lib/libthr/thread/thr_umtx.c
1.17 +4 -1 src/lib/libthr/thread/thr_umtx.h
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