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These are some cosmetic changes to improve the clarity of libthr's fork implementation.

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This commit is contained in:
Brian Feldman 2009-05-11 16:45:53 +00:00
parent 22d7ae67d4
commit 43af51a2b5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=191993
1 changed files with 9 additions and 9 deletions
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18
lib/libthr/thread/thr_fork.c
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@ -105,7 +105,7 @@ _fork(void)
struct pthread_atfork *af;
pid_t ret;
int errsave;
int unlock_malloc;
int was_threaded;
int rtld_locks[MAX_RTLD_LOCKS];
if (!_thr_is_inited())
@ -122,16 +122,16 @@ _fork(void)
}
/*
* Try our best to protect memory from being corrupted in
* child process because another thread in malloc code will
* simply be kill by fork().
* All bets are off as to what should happen soon if the parent
* process was not so kindly as to set up pthread fork hooks to
* relinquish all running threads.
*/
if (_thr_isthreaded() != 0) {
unlock_malloc = 1;
was_threaded = 1;
_malloc_prefork();
_rtld_atfork_pre(rtld_locks);
} else {
unlock_malloc = 0;
was_threaded = 0;
}
/*
@ -159,7 +159,7 @@ _fork(void)
_thr_umutex_init(&curthread->lock);
_thr_umutex_init(&_thr_atfork_lock);
if (unlock_malloc)
if (was_threaded)
_rtld_atfork_post(rtld_locks);
_thr_setthreaded(0);
@ -173,7 +173,7 @@ _fork(void)
/* Ready to continue, unblock signals. */
_thr_signal_unblock(curthread);
if (unlock_malloc) {
if (was_threaded) {
__isthreaded = 1;
_malloc_postfork();
__isthreaded = 0;
@ -191,7 +191,7 @@ _fork(void)
/* Ready to continue, unblock signals. */
_thr_signal_unblock(curthread);
if (unlock_malloc) {
if (was_threaded) {
_rtld_atfork_post(rtld_locks);
_malloc_postfork();
}