Chromium Code Reviews| Index: fusl/src/thread/pthread_rwlock_trywrlock.c |
| diff --git a/fusl/src/thread/pthread_rwlock_trywrlock.c b/fusl/src/thread/pthread_rwlock_trywrlock.c |
| new file mode 100644 |
| index 0000000000000000000000000000000000000000..bb3d3a992d1f3dd8a4919de9945b7fad75786a6a |
| --- /dev/null |
| +++ b/fusl/src/thread/pthread_rwlock_trywrlock.c |
| @@ -0,0 +1,7 @@ |
| +#include "pthread_impl.h" |
| + |
| +int pthread_rwlock_trywrlock(pthread_rwlock_t *rw) |
| +{ |
| + if (a_cas(&rw->_rw_lock, 0, 0x7fffffff)) return EBUSY; |
| + return 0; |
| +} |