/* * Copyright (c) 2001-2004 Jakub Jermar * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - 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. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ /** @addtogroup sync * @{ */ /** @file */ #ifndef KERN_CONDVAR_H_ #define KERN_CONDVAR_H_ #include #include #include #include typedef struct { waitq_t wq; } condvar_t; #define condvar_wait(cv, mtx) \ _condvar_wait_timeout((cv), (mtx), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE) #define condvar_wait_timeout(cv, mtx, usec) \ _condvar_wait_timeout((cv), (mtx), (usec), SYNCH_FLAGS_NONE) extern void condvar_initialize(condvar_t *cv); extern void condvar_signal(condvar_t *cv); extern void condvar_broadcast(condvar_t *cv); extern int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, uint32_t usec, int flags); #endif /** @} */