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| author | Ulrich Drepper <drepper@redhat.com> | 2003-06-05 19:31:57 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-06-05 19:31:57 +0000 |
| commit | 4ad0bbf4fa2073b8b2cb81866f68ff3e8c503174 (patch) | |
| tree | 3b1ca4ddea994a1978a4c1b1a791f8458cce706d /nptl/sysdeps/pthread/pthread_rwlock_wrlock.c | |
| parent | b558fd3ab7b8d9d98b7babc51da7de109f69a77e (diff) | |
| download | glibc-4ad0bbf4fa2073b8b2cb81866f68ff3e8c503174.tar.gz glibc-4ad0bbf4fa2073b8b2cb81866f68ff3e8c503174.tar.xz glibc-4ad0bbf4fa2073b8b2cb81866f68ff3e8c503174.zip | |
Update.
2003-06-05 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h (pthread_rwlock_t): Change type of __writer element to int. * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/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/x86_64/bits/pthreadtypes.h: Likewise. * sysdeps/i386/tcb-offsets.sym: Replace SELF entry with TID entry. * sysdeps/x86_64/tcb-offsets.sym: Likewise. * pthread_rwlock_trywrlock.c: Store TID not self pointer in __writer. Compare with TID to determine deadlocks. * sysdeps/pthread/pthread_rwlock_rdlock.c: Likewise. * sysdeps/pthread/pthread_rwlock_timedrdlock.c: Likewise. * sysdeps/pthread/pthread_rwlock_timedwrlock.: Likewise. * sysdeps/pthread/pthread_rwlock_wrlock.c: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: Likewise. * Makefile (tests): Add tst-rwlock12. * tst-rwlock12.c: New file.
Diffstat (limited to 'nptl/sysdeps/pthread/pthread_rwlock_wrlock.c')
| -rw-r--r-- | nptl/sysdeps/pthread/pthread_rwlock_wrlock.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c b/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c index 171a14adb1..822aeed79c 100644 --- a/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c +++ b/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c @@ -40,15 +40,14 @@ __pthread_rwlock_wrlock (rwlock) if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0) { /* Mark self as writer. */ - rwlock->__data.__writer = (pthread_t) THREAD_ID; + rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid); break; } /* Make sure we are not holding the rwlock as a writer. This is a deadlock situation we recognize and report. */ - if (rwlock->__data.__writer != 0 - && __builtin_expect (rwlock->__data.__writer - == (pthread_t) THREAD_ID, 0)) + if (__builtin_expect (rwlock->__data.__writer + == THREAD_GETMEM (THREAD_SELF, tid), 0)) { result = EDEADLK; break; |