diff options
author | pommicket <pommicket@gmail.com> | 2022-02-20 13:18:21 -0800 |
---|---|---|
committer | pommicket <pommicket@gmail.com> | 2022-02-20 13:18:21 -0800 |
commit | 9bc8a11afeed3569736b89754012e3ca22ee10f6 (patch) | |
tree | 5f0ec0d5c05f879b1ee86adfa654ed3ef2178d5f /05/musl-0.6.0/src/thread/pthread_rwlock_timedrdlock.c | |
parent | 0f97a589b800bdb71dda05984192f0f66a52edaa (diff) |
conclusion
Diffstat (limited to '05/musl-0.6.0/src/thread/pthread_rwlock_timedrdlock.c')
-rw-r--r-- | 05/musl-0.6.0/src/thread/pthread_rwlock_timedrdlock.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/05/musl-0.6.0/src/thread/pthread_rwlock_timedrdlock.c b/05/musl-0.6.0/src/thread/pthread_rwlock_timedrdlock.c new file mode 100644 index 0000000..1e76a8e --- /dev/null +++ b/05/musl-0.6.0/src/thread/pthread_rwlock_timedrdlock.c @@ -0,0 +1,15 @@ +#include "pthread_impl.h" + +int pthread_rwlock_timedrdlock(pthread_rwlock_t *rw, const struct timespec *at) +{ + int w=0; + while (pthread_rwlock_tryrdlock(rw)) { + if (!w) a_inc(&rw->_rw_waiters), w++; + if (__timedwait(&rw->_rw_wrlock, 1, CLOCK_REALTIME, at, 0)==ETIMEDOUT) { + if (w) a_dec(&rw->_rw_waiters); + return ETIMEDOUT; + } + } + if (w) a_dec(&rw->_rw_waiters); + return 0; +} |