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| author | Ulrich Drepper <drepper@redhat.com> | 1998-10-29 15:17:25 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-10-29 15:17:25 +0000 |
| commit | c5e340c71ba6f4563ca5fa245baa82b6363ddb2e (patch) | |
| tree | 3ff655dfee624df411e1f3ebc062181fc0f3f338 /linuxthreads/rwlock.c | |
| parent | 05e951cd1ae7917ce25ec96cc17ebcbf401e345c (diff) | |
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Update.
1998-10-29 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/ttyname_r.c (ttyname_r): Try reading
/prof/self/fd/FD first.
* sysdeps/unix/sysv/linux/ttyname.c (ttyname): Likewise.
* stdio-common/_itoa.h (_fitoa_word): New inline function. Write
formatted number starting at given position and return pointer to
following byte.
(_fitoa): Likewise, for long long.
Diffstat (limited to 'linuxthreads/rwlock.c')
| -rw-r--r-- | linuxthreads/rwlock.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/linuxthreads/rwlock.c b/linuxthreads/rwlock.c index bff4e38fa8..1fb18a3f9e 100644 --- a/linuxthreads/rwlock.c +++ b/linuxthreads/rwlock.c @@ -57,7 +57,7 @@ pthread_rwlock_destroy (pthread_rwlock_t *rwlock) int readers; _pthread_descr writer; - __pthread_lock (&rwlock->__rw_lock); + __pthread_lock (&rwlock->__rw_lock, NULL); readers = rwlock->__rw_readers; writer = rwlock->__rw_writer; __pthread_unlock (&rwlock->__rw_lock); @@ -72,11 +72,11 @@ pthread_rwlock_destroy (pthread_rwlock_t *rwlock) int pthread_rwlock_rdlock (pthread_rwlock_t *rwlock) { - pthread_descr self; + pthread_descr self = NULL; while (1) { - __pthread_lock (&rwlock->__rw_lock); + __pthread_lock (&rwlock->__rw_lock, self); if (rwlock->__rw_writer == NULL || (rwlock->__rw_kind == PTHREAD_RWLOCK_PREFER_READER_NP && rwlock->__rw_readers != 0)) @@ -84,7 +84,8 @@ pthread_rwlock_rdlock (pthread_rwlock_t *rwlock) break; /* Suspend ourselves, then try again */ - self = thread_self (); + if (self == NULL) + self = thread_self (); enqueue (&rwlock->__rw_read_waiting, self); __pthread_unlock (&rwlock->__rw_lock); suspend (self); /* This is not a cancellation point */ @@ -102,7 +103,7 @@ pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock) { int result = EBUSY; - __pthread_lock (&rwlock->__rw_lock); + __pthread_lock (&rwlock->__rw_lock, NULL); if (rwlock->__rw_writer == NULL || (rwlock->__rw_kind == PTHREAD_RWLOCK_PREFER_READER_NP && rwlock->__rw_readers != 0)) @@ -123,7 +124,7 @@ pthread_rwlock_wrlock (pthread_rwlock_t *rwlock) while(1) { - __pthread_lock (&rwlock->__rw_lock); + __pthread_lock (&rwlock->__rw_lock, self); if (rwlock->__rw_readers == 0 && rwlock->__rw_writer == NULL) { rwlock->__rw_writer = self; @@ -144,7 +145,7 @@ pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock) { int result = EBUSY; - __pthread_lock (&rwlock->__rw_lock); + __pthread_lock (&rwlock->__rw_lock, NULL); if (rwlock->__rw_readers == 0 && rwlock->__rw_writer == NULL) { rwlock->__rw_writer = thread_self (); @@ -162,7 +163,7 @@ pthread_rwlock_unlock (pthread_rwlock_t *rwlock) pthread_descr torestart; pthread_descr th; - __pthread_lock (&rwlock->__rw_lock); + __pthread_lock (&rwlock->__rw_lock, NULL); if (rwlock->__rw_writer != NULL) { /* Unlocking a write lock. */ |