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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/rwlock.c
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/rwlock.c')
-rw-r--r--linuxthreads/rwlock.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/linuxthreads/rwlock.c b/linuxthreads/rwlock.c
index 9da87d2..e4a4c81 100644
--- a/linuxthreads/rwlock.c
+++ b/linuxthreads/rwlock.c
@@ -217,7 +217,7 @@ __pthread_rwlock_destroy (pthread_rwlock_t *rwlock)
__pthread_lock (&rwlock->__rw_lock, NULL);
readers = rwlock->__rw_readers;
writer = rwlock->__rw_writer;
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
if (readers > 0 || writer != NULL)
return EBUSY;
@@ -247,12 +247,12 @@ __pthread_rwlock_rdlock (pthread_rwlock_t *rwlock)
break;
enqueue (&rwlock->__rw_read_waiting, self);
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
suspend (self); /* This is not a cancellation point */
}
++rwlock->__rw_readers;
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
if (have_lock_already || out_of_mem)
{
@@ -291,7 +291,7 @@ __pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock)
retval = 0;
}
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
if (retval == 0)
{
@@ -320,13 +320,13 @@ __pthread_rwlock_wrlock (pthread_rwlock_t *rwlock)
if (rwlock->__rw_readers == 0 && rwlock->__rw_writer == NULL)
{
rwlock->__rw_writer = self;
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
return 0;
}
/* Suspend ourselves, then try again */
enqueue (&rwlock->__rw_write_waiting, self);
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
suspend (self); /* This is not a cancellation point */
}
}
@@ -344,7 +344,7 @@ __pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock)
rwlock->__rw_writer = thread_self ();
result = 0;
}
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
return result;
}
@@ -363,7 +363,7 @@ __pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
/* Unlocking a write lock. */
if (rwlock->__rw_writer != thread_self ())
{
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
return EPERM;
}
rwlock->__rw_writer = NULL;
@@ -375,14 +375,14 @@ __pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
/* Restart all waiting readers. */
torestart = rwlock->__rw_read_waiting;
rwlock->__rw_read_waiting = NULL;
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
while ((th = dequeue (&torestart)) != NULL)
restart (th);
}
else
{
/* Restart one waiting writer. */
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
restart (th);
}
}
@@ -391,7 +391,7 @@ __pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
/* Unlocking a read lock. */
if (rwlock->__rw_readers == 0)
{
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
return EPERM;
}
@@ -402,7 +402,7 @@ __pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
else
th = NULL;
- __pthread_unlock (&rwlock->__rw_lock);
+ __pthread_spin_unlock (&rwlock->__rw_lock);
if (th != NULL)
restart (th);