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authorUlrich Drepper <drepper@redhat.com>2000-04-13 05:57:21 +0000
committerUlrich Drepper <drepper@redhat.com>2000-04-13 05:57:21 +0000
commitd8d914df6806c6057b20c7311cad0bc2ac201c03 (patch)
tree6d2512373ef92b0abbebd4e0d0761cdd9715ea0b /linuxthreads/sysdeps/pthread/pthread.h
parentb3ae0650bcff54f12d87f878000d4c488b365bf7 (diff)
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Update.
	* sysdeps/pthread/pthread.h: Add prototypes for pthread_spin_init,
	pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock,
	and pthread_spin_unlock.
	* sysdeps/pthread/bits/pthreadtypes.h: Change struct _pthread_fastlock
	into pthread_spinlock_t.  Change all uses.
	* spinlock.c: Implement pthread_spin_lock.
	Rename __pthread_unlock to __pthread_spin_unlock and define weak
	alias for real name.
	Define pthread_spin_trylock, pthread_spin_init, and
	pthread_spin_destroy.
	Change all uses of _pthread_fastlock to pthread_spinlock_t.
	* spinlock.h: Rename __pthread_unlock to __pthread_spin_unlock.
	Change all uses of _pthread_fastlock to pthread_spinlock_t.
	* Versions [libpthread] (GLIBC_2.2): Add pthread_spin_init,
	pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock,
	and pthread_spin_unlock.
	* cancel.c: Use __pthread_spin_unlock instead of __pthread_unlock.
	Change all uses of _pthread_fastlock to pthread_spinlock_t.
	* condvar.c: Likewise.
	* internals.h: Likewise.
	* join.c: Likewise.
	* manager.c: Likewise.
	* mutex.c: Likewise.
	* pthread.c: Likewise.
	* rwlock.c: Likewise.
	* semaphore.c: Likewise.
	* signals.c: Likewise.
Diffstat (limited to 'linuxthreads/sysdeps/pthread/pthread.h')
-rw-r--r--linuxthreads/sysdeps/pthread/pthread.h21
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.  */