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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.
This commit is contained in:
Ulrich Drepper
2002-12-18 00:53:21 +00:00
parent a7d5c29129
commit f077a4a9f0
9 changed files with 266 additions and 14 deletions
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37
malloc/thread-m.h
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@ -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)