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authorUlrich Drepper <drepper@redhat.com>2003-06-22 23:55:27 +0000
committerUlrich Drepper <drepper@redhat.com>2003-06-22 23:55:27 +0000
commit6162364368b2092b2bd7b1ba26366ba9a841787a (patch)
tree484fb1a48e0bed5865f53b53e012475efec09fc5 /nptl/pthread_mutex_unlock.c
parentb758b9cb108f37e65278f4488fad083300022ba7 (diff)
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Update.
2003-06-22 Ulrich Drepper <drepper@redhat.com> * pthreadP.h (__pthread_mutex_init_internal): Mark hidden. (__pthread_mutex_lock_internal): Likewise. (__pthread_mutex_unlock_internal): Likewise. (__pthread_mutex_unlock_usercnt): Declare. * pthread_mutex_destroy.c: Always fail if used in any way. * pthread_mutex_init.c: Update comment. * pthread_mutex_lock.c: If NO_INCR is not defined adjust __nusers. * pthread_mutex_timedlock.c: Adjust __nusers. * pthread_mutex_trylock.c: Adjust __nusers. * pthread_mutex_unlock.c: Old code is in __pthread_mutex_unlock_usercnt and public interfaces are wrapper with pass additional parameter. __pthread_mutex_unlock_usercnt does not adjust __nusers if second parameter zero. * tst-mutex8.c: New file. * Makefile (tests): Add tst-mutex8. * sysdeps/pthread/pthread_cond_timedwait.c: Call __pthread_mutex_unlock_usercnt. * sysdeps/pthread/pthread_cond_wait.c: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c: Define NO_INCR. * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h (pthread_mutex_t): Add __nusers. * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise. * pthread_mutex_lock.c: Don't store THREAD_ID in __owner, use TID. * pthread_mutex_timedlock.c: Likewise. * pthread_mutex_trylock.c: Adjust __nusers. * pthread_mutex_unlock.c: Compare with TID not THREAD_ID. * tst-mutex9.c: New file. * Makefile (tests): Add tst-mutex9. * sysdeps/i386/tls.h: Remove THREAD_ID definition. * sysdeps/ia64/tls.h: Likewise. * sysdeps/powerpc/tls.h: Likewise. * sysdeps/s390/tls.h: Likewise. * sysdeps/sh/tls.h: Likewise. * sysdeps/x86_64/tls.h: Likewise. * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h (pthread_mutex_t): Change type of __owner. * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
Diffstat (limited to 'nptl/pthread_mutex_unlock.c')
-rw-r--r--nptl/pthread_mutex_unlock.c21
1 files changed, 17 insertions, 4 deletions
diff --git a/nptl/pthread_mutex_unlock.c b/nptl/pthread_mutex_unlock.c
index 975127d2b2..56b1cd4a9a 100644
--- a/nptl/pthread_mutex_unlock.c
+++ b/nptl/pthread_mutex_unlock.c
@@ -23,14 +23,16 @@
int
-__pthread_mutex_unlock (mutex)
+internal_function
+__pthread_mutex_unlock_usercnt (mutex, decr)
pthread_mutex_t *mutex;
+ bool decr;
{
switch (__builtin_expect (mutex->__data.__kind, PTHREAD_MUTEX_TIMED_NP))
{
case PTHREAD_MUTEX_RECURSIVE_NP:
/* Recursive mutex. */
- if (mutex->__data.__owner != THREAD_ID)
+ if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid))
return EPERM;
if (--mutex->__data.__count != 0)
@@ -40,7 +42,7 @@ __pthread_mutex_unlock (mutex)
case PTHREAD_MUTEX_ERRORCHECK_NP:
/* Error checking mutex. */
- if (mutex->__data.__owner != THREAD_ID
+ if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid)
|| ! lll_mutex_islocked (mutex->__data.__lock))
return EPERM;
break;
@@ -54,12 +56,23 @@ __pthread_mutex_unlock (mutex)
}
/* Always reset the owner field. */
- mutex->__data.__owner = NULL;
+ mutex->__data.__owner = 0;
+ if (decr)
+ /* One less user. */
+ --mutex->__data.__nusers;
/* Unlock. */
lll_mutex_unlock (mutex->__data.__lock);
return 0;
}
+
+
+int
+__pthread_mutex_unlock (mutex)
+ pthread_mutex_t *mutex;
+{
+ return __pthread_mutex_unlock_usercnt (mutex, true);
+}
strong_alias (__pthread_mutex_unlock, pthread_mutex_unlock)
strong_alias (__pthread_mutex_unlock, __pthread_mutex_unlock_internal)