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* 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.
This commit is contained in:
Ulrich Drepper
2000-04-13 05:57:21 +00:00
parent b3ae0650bc
commit d8d914df68
16 changed files with 183 additions and 98 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
linuxthreads/sysdeps/pthread/pthread.h
View File

@@ -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. */