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authorthorpej <thorpej@NetBSD.org>2003-01-19 19:24:39 +0000
committerthorpej <thorpej@NetBSD.org>2003-01-19 19:24:39 +0000
commitba54189cb1c5c6b2ec5f5004fe9e9a02455d47be (patch)
tree5fa41603799c23195479a76bae2e0173be81e689 /include/threadlib.h
parentd44e858cbb6a7ccf2d6ecad3dc1bb7b855d930c8 (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.h140
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_ */