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| author | Ulrich Drepper <drepper@redhat.com> | 2002-12-18 00:53:21 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2002-12-18 00:53:21 +0000 |
| commit | f077a4a9f027b938bd091583e3ec34725cba428c (patch) | |
| tree | 6052d47da431d7cd5e745dab1a908a5f54ffbfc7 /malloc/thread-m.h | |
| parent | a7d5c29129aab547faff1fd2cfe0d9095ec4689b (diff) | |
| download | glibc-f077a4a9f027b938bd091583e3ec34725cba428c.zip glibc-f077a4a9f027b938bd091583e3ec34725cba428c.tar.gz glibc-f077a4a9f027b938bd091583e3ec34725cba428c.tar.bz2 | |
Update.
2002-12-17 Jakub Jelinek <jakub@redhat.com>
* malloc/thread-m.h (mutex_init, mutex_lock, mutex_trylock,
mutex_unlock): If not building NPTL, use __libc_maybe_call2 if
available, otherwise __libc_maybe_call.
* sysdeps/unix/sysv/linux/x86_64/recv.c: Add support for
cancellation handling.
* sysdeps/unix/sysv/linux/x86_64/send.c: Likewise.
Diffstat (limited to 'malloc/thread-m.h')
| -rw-r--r-- | malloc/thread-m.h | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/malloc/thread-m.h b/malloc/thread-m.h index 34fea0e..49db784 100644 --- a/malloc/thread-m.h +++ b/malloc/thread-m.h @@ -35,21 +35,42 @@ #ifdef PTHREAD_MUTEX_INITIALIZER -/* mutex */ __libc_lock_define (typedef, mutex_t) -/* Even if not linking with libpthread, ensure usability of mutex as - an `in use' flag, see also the NO_THREADS case below. Assume - pthread_mutex_t is at least one int wide. */ +#if defined(LLL_LOCK_INITIALIZER) && !defined(NOT_IN_libc) + +/* Assume NPTL. */ + +#define mutex_init(m) __libc_lock_init (*(m)) +#define mutex_lock(m) __libc_lock_lock (*(m)) +#define mutex_trylock(m) __libc_lock_trylock (*(m)) +#define mutex_unlock(m) __libc_lock_unlock (*(m)) + +#elif defined(__libc_maybe_call2) #define mutex_init(m) \ - __libc_lock_init (*m) + __libc_maybe_call2 (pthread_mutex_init, (m, NULL), (*(int *)(m) = 0)) #define mutex_lock(m) \ - __libc_lock_lock (*m) + __libc_maybe_call2 (pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0)) #define mutex_trylock(m) \ - __libc_lock_trylock (*m) + __libc_maybe_call2 (pthread_mutex_trylock, (m), \ + (*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0))) #define mutex_unlock(m) \ - __libc_lock_unlock (*m) + __libc_maybe_call2 (pthread_mutex_unlock, (m), (*(int *)(m) = 0)) + +#else + +#define mutex_init(m) \ + __libc_maybe_call (__pthread_mutex_init, (m, NULL), (*(int *)(m) = 0)) +#define mutex_lock(m) \ + __libc_maybe_call (__pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0)) +#define mutex_trylock(m) \ + __libc_maybe_call (__pthread_mutex_trylock, (m), \ + (*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0))) +#define mutex_unlock(m) \ + __libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0)) + +#endif #define thread_atfork(prepare, parent, child) \ (__pthread_atfork != NULL ? __pthread_atfork(prepare, parent, child) : 0) |