diff options
| author | thorpej <thorpej@NetBSD.org> | 2003-01-19 19:24:39 +0000 |
|---|---|---|
| committer | thorpej <thorpej@NetBSD.org> | 2003-01-19 19:24:39 +0000 |
| commit | ba54189cb1c5c6b2ec5f5004fe9e9a02455d47be (patch) | |
| tree | 5fa41603799c23195479a76bae2e0173be81e689 /include/threadlib.h | |
| parent | d44e858cbb6a7ccf2d6ecad3dc1bb7b855d930c8 (diff) | |
Expose libc's thread stubs, which get magically turned into real pthread
calls when the pthread library is linked in. Simplifies making other
libraries (such as X's) thread-safe.
Diffstat (limited to 'include/threadlib.h')
| -rw-r--r-- | include/threadlib.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/include/threadlib.h b/include/threadlib.h new file mode 100644 index 00000000000..a4d1d997966 --- /dev/null +++ b/include/threadlib.h @@ -0,0 +1,140 @@ +/* $NetBSD: threadlib.h,v 1.1 2003/01/19 19:24:39 thorpej Exp $ */ + +/*- + * Copyright (c) 1997, 1998, 2003 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by J.T. Conklin, by Nathan J. Williams, and by Jason R. Thorpe. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _THREADLIB_H_ +#define _THREADLIB_H_ + +/* + * Abtract thread interface for thread-safe libraries. These routines + * will use stubs in libc if the application is not linked against the + * pthread library, and the real function in the pthread library if it + * is. + */ + +#include <pthread.h> +#include <signal.h> + +#define mutex_t pthread_mutex_t +#define MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER + +#define mutexattr_t pthread_mutexattr_t + +#define cond_t pthread_cond_t +#define COND_INITIALIZER PTHREAD_COND_INITIALIZER + +#define condattr_t pthread_condattr_t + +#define rwlock_t pthread_rwlock_t +#define RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER + +#define rwlockattr_t pthread_rwlockattr_t + +#define thread_key_t pthread_key_t + +#define thr_t pthread_t + +#define once_t pthread_once_t +#define ONCE_INITIALIZER PTHREAD_ONCE_INIT + +#ifndef __LIBC_THREAD_STUBS + +int __libc_mutex_init(mutex_t *, const mutexattr_t *); +int __libc_mutex_lock(mutex_t *); +int __libc_mutex_trylock(mutex_t *); +int __libc_mutex_unlock(mutex_t *); +int __libc_mutex_destroy(mutex_t *); + +#define mutex_init(m, a) __libc_mutex_init((m), (a)) +#define mutex_lock(m) __libc_mutex_lock((m)) +#define mutex_trylock(m) __libc_mutex_trylock((m)) +#define mutex_unlock(m) __libc_mutex_unlock((m)) +#define mutex_destroy(m) __libc_mutex_destroy((m)) + +int __libc_cond_init(cond_t *, const condattr_t *); +int __libc_cond_signal(cond_t *); +int __libc_cond_broadcast(cond_t *); +int __libc_cond_wait(cond_t *, mutex_t *); +int __libc_cond_timedwait(cond_t *, mutex_t *, const struct timespec *); +int __libc_cond_destroy(cond_t *); + +#define cond_init(c, t, a) __libc_cond_init((c), (a)) +#define cond_signal(c) __libc_cond_signal((c)) +#define cond_broadcast(c) __libc_cond_broadcast((c)) +#define cond_wait(c, m) __libc_cond_wait((c), (m)) +#define cond_timedwait(c, m, t) __libc_cond_timedwait((c), (m), (t)) +#define cond_destroy(c) __libc_cond_destroy((c)) + +int __libc_rwlock_init(rwlock_t *, const rwlockattr_t *); +int __libc_rwlock_rdlock(rwlock_t *); +int __libc_rwlock_wrlock(rwlock_t *); +int __libc_rwlock_tryrdlock(rwlock_t *); +int __libc_rwlock_trywrlock(rwlock_t *); +int __libc_rwlock_unlock(rwlock_t *); +int __libc_rwlock_destroy(rwlock_t *); + +#define rwlock_init(l, a) __libc_rwlock_init((l), (a)) +#define rwlock_rdlock(l) __libc_rwlock_rdlock((l)) +#define rwlock_wrlock(l) __libc_rwlock_wrlock((l)) +#define rwlock_tryrdlock(l) __libc_rwlock_tryrdlock((l)) +#define rwlock_trywrlock(l) __libc_rwlock_trywrlock((l)) +#define rwlock_unlock(l) __libc_rwlock_unlock((l)) +#define rwlock_destroy(l) __libc_rwlock_destroy((l)) + +int __libc_thr_keycreate(thread_key_t *, void (*)(void *)); +int __libc_thr_setspecific(thread_key_t, const void *); +void *__libc_thr_getspecific(thread_key_t); +int __libc_thr_keydelete(thread_key_t); + +#define thr_keycreate(k, d) __libc_thr_keycreate((k), (d)) +#define thr_setspecific(k, p) __libc_thr_setspecific((k), (p)) +#define thr_getspecific(k) __libc_thr_getspecific((k)) +#define thr_keydelete(k) __libc_thr_keydelete((k)) + +int __libc_thr_once(once_t *, void (*)(void)); +int __libc_thr_sigsetmask(int, const sigset_t *, sigset_t *); +thr_t __libc_thr_self(void); +int *__libc_thr_errno(void); + +#define thr_once(o, f) __libc_thr_once((o), (f)) +#define thr_sigsetmask(f, n, o) __libc_thr_sigsetmask((f), (n), (o)) +#define thr_self() __libc_thr_self() +#define thr_errno() __libc_thr_errno() + +#endif /* __LIBC_THREAD_STUBS */ + +#endif /* _THREADLIB_H_ */ |
