diff options
Diffstat (limited to 'lib/libthr/thread/thr_umtx.h')
| -rw-r--r-- | lib/libthr/thread/thr_umtx.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/libthr/thread/thr_umtx.h b/lib/libthr/thread/thr_umtx.h index a0f331a..8696320 100644 --- a/lib/libthr/thread/thr_umtx.h +++ b/lib/libthr/thread/thr_umtx.h @@ -65,6 +65,14 @@ _thr_umutex_trylock(struct umutex *mtx, uint32_t id) } static inline int +_thr_umutex_trylock2(struct umutex *mtx, uint32_t id) +{ + if (atomic_cmpset_acq_32(&mtx->m_owner, UMUTEX_UNOWNED, id)) + return (0); + return (EBUSY); +} + +static inline int _thr_umutex_lock(struct umutex *mtx, uint32_t id) { if (atomic_cmpset_acq_32(&mtx->m_owner, UMUTEX_UNOWNED, id)) |
