diff options
Diffstat (limited to 'linuxthreads/sysdeps/pthread/pthread.h')
| -rw-r--r-- | linuxthreads/sysdeps/pthread/pthread.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/pthread/pthread.h b/linuxthreads/sysdeps/pthread/pthread.h index 1ff7cba7a6..4cc1aaae06 100644 --- a/linuxthreads/sysdeps/pthread/pthread.h +++ b/linuxthreads/sysdeps/pthread/pthread.h @@ -405,6 +405,27 @@ extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr, int __pref) __THROW; #endif +#ifdef __USE_XOPEN2K +/* The IEEE Std. 10003.1j-2000 introduces functions to implement + spinlocks. */ + +/* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can + be shared between different processes. */ +extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared); + +/* Destroy the spinlock LOCK. */ +extern int pthread_spin_destroy (pthread_spinlock_t *__lock); + +/* Wait until spinlock LOCK is retrieved. */ +extern int pthread_spin_lock (pthread_spinlock_t *__lock); + +/* Try to lock spinlock LOCK. */ +extern int pthread_spin_trylock (pthread_spinlock_t *__lock); + +/* Release spinlock LOCK. */ +extern int pthread_spin_unlock (pthread_spinlock_t *__lock); +#endif + /* Functions for handling thread-specific data. */ |