diff options
Diffstat (limited to '05/musl-0.6.0/src/thread/pthread_rwlock_wrlock.c')
| -rw-r--r-- | 05/musl-0.6.0/src/thread/pthread_rwlock_wrlock.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/05/musl-0.6.0/src/thread/pthread_rwlock_wrlock.c b/05/musl-0.6.0/src/thread/pthread_rwlock_wrlock.c new file mode 100644 index 0000000..8fd9ad1 --- /dev/null +++ b/05/musl-0.6.0/src/thread/pthread_rwlock_wrlock.c @@ -0,0 +1,13 @@ +#include "pthread_impl.h" + +int pthread_rwlock_wrlock(pthread_rwlock_t *rw) +{ + int nr; + while (pthread_rwlock_trywrlock(rw)==EAGAIN) { + if ((nr=rw->_rw_readers)) + __wait(&rw->_rw_readers, &rw->_rw_waiters, nr, 0); + else + __wait(&rw->_rw_wrlock, &rw->_rw_waiters, 1, 0); + } + return 0; +} |