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authorRich Felker <dalias@aerifal.cx>2011-04-06 12:24:34 -0400
committerRich Felker <dalias@aerifal.cx>2011-04-06 12:24:34 -0400
commita113434cd68ce30642c4995b1caadcd084be6f09 (patch)
treeb26daaeda2c9e2caf1605615c497a4a84191e01d /src/thread/pthread_cond_timedwait.c
parentcd3bb38412cfcc3bc47985ba25287e0af463609a (diff)
downloadmusl-a113434cd68ce30642c4995b1caadcd084be6f09.tar.gz
major semaphore improvements (performance and correctness)
1. make sem_[timed]wait interruptible by signals, per POSIX 2. keep a waiter count in order to avoid unnecessary futex wake syscalls
Diffstat (limited to 'src/thread/pthread_cond_timedwait.c')
-rw-r--r--src/thread/pthread_cond_timedwait.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/thread/pthread_cond_timedwait.c b/src/thread/pthread_cond_timedwait.c
index 1439aace..7a19fc55 100644
--- a/src/thread/pthread_cond_timedwait.c
+++ b/src/thread/pthread_cond_timedwait.c
@@ -16,7 +16,8 @@ int pthread_cond_timedwait(pthread_cond_t *c, pthread_mutex_t *m, const struct t
if ((r=pthread_mutex_unlock(m))) return r;
CANCELPT_BEGIN;
- e = __timedwait(&c->_c_block, 1, c->_c_clock, ts, 0);
+ do e = __timedwait(&c->_c_block, 1, c->_c_clock, ts, 0);
+ while (e == EINTR);
CANCELPT_END;
pthread_cleanup_pop(0);