diff options
Diffstat (limited to 'lib/libthr/thread/thr_spinlock.c')
| -rw-r--r-- | lib/libthr/thread/thr_spinlock.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/libthr/thread/thr_spinlock.c b/lib/libthr/thread/thr_spinlock.c index ff9b9e0..0f9cb6b 100644 --- a/lib/libthr/thread/thr_spinlock.c +++ b/lib/libthr/thread/thr_spinlock.c @@ -69,6 +69,16 @@ _spinlock(spinlock_t *lck) _spinlock_pthread(curthread, lck); } +int +_spintrylock(spinlock_t *lck) +{ + int error; + error = umtx_trylock((struct umtx *)lck, curthread->thr_id); + if (error != 0 && error != EBUSY) + abort(); + return (error); +} + inline void _spinlock_pthread(pthread_t pthread, spinlock_t *lck) { |
