/* * Copyright (c) 2010 Apple Inc. All rights reserved. * Copyright (c) 2008 Likewise Software, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * 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. Neither the name of Apple Inc. 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IN NO EVENT SHALL APPLE OR ITS 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. * * Portions of this software have been released under the following terms: * * (c) Copyright 1989-1993 OPEN SOFTWARE FOUNDATION, INC. * (c) Copyright 1989-1993 HEWLETT-PACKARD COMPANY * (c) Copyright 1989-1993 DIGITAL EQUIPMENT CORPORATION * * To anyone who acknowledges that this file is provided "AS IS" * without any express or implied warranty: * permission to use, copy, modify, and distribute this file for any * purpose is hereby granted without fee, provided that the above * copyright notices and this notice appears in all source code copies, * and that none of the names of Open Software Foundation, Inc., Hewlett- * Packard Company or Digital Equipment Corporation be used * in advertising or publicity pertaining to distribution of the software * without specific, written prior permission. Neither Open Software * Foundation, Inc., Hewlett-Packard Company nor Digital * Equipment Corporation makes any representations about the suitability * of this software for any purpose. * * Copyright (c) 2007, Novell, Inc. All rights reserved. * 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. Neither the name of Novell Inc. nor the names of its contributors * may be used to endorse or promote products derived from this * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS 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. * * @APPLE_LICENSE_HEADER_END@ */ #include <config.h> #include "dcethread-private.h" #include "dcethread-util.h" #include "dcethread-debug.h" #ifdef API int dcethread_cond_wait(dcethread_cond *cond, dcethread_mutex *mutex) { int ret = 0; int (*interrupt_old)(dcethread*, void*) = NULL; void *data_old = NULL; condwait_info info; info.cond = cond; info.mutex = mutex; if (dcethread__begin_block(dcethread__self(), dcethread__interrupt_condwait, &info, &interrupt_old, &data_old)) { dcethread__dispatchinterrupt(dcethread__self()); return dcethread__set_errno(EINTR); } mutex->owner = (pthread_t) -1; ret = dcethread__set_errno(pthread_cond_wait(cond, (pthread_mutex_t*) &mutex->mutex)); mutex->owner = pthread_self(); if (dcethread__end_block(dcethread__self(), interrupt_old, data_old)) { dcethread__dispatchinterrupt(dcethread__self()); return dcethread__set_errno(EINTR); } return dcethread__set_errno(ret); } int dcethread_cond_wait_throw(dcethread_cond *cond, dcethread_mutex *mutex) { DCETHREAD_WRAP_THROW(dcethread_cond_wait(cond, mutex)); } #endif /* API */ #ifdef TEST #include "dcethread-test.h" static void* basic_thread(void* data) { volatile int interrupt_caught = 0; dcethread_cond cond; dcethread_mutex mutex; MU_TRY_DCETHREAD( dcethread_mutex_init(&mutex, NULL) ); MU_TRY_DCETHREAD( dcethread_cond_init(&cond, NULL) ); DCETHREAD_TRY { MU_ASSERT(!interrupt_caught); MU_TRY_DCETHREAD( dcethread_mutex_lock (&mutex) ); while (1) { MU_TRY_DCETHREAD( dcethread_cond_wait (&cond, &mutex) ); } } DCETHREAD_CATCH(dcethread_interrupt_e) { MU_ASSERT(!interrupt_caught); interrupt_caught = 1; } DCETHREAD_FINALLY { dcethread_mutex_unlock (&mutex); } DCETHREAD_ENDTRY; MU_ASSERT(interrupt_caught); return NULL; } MU_TEST(dcethread_cond_wait, interrupt_pre) { dcethread* thread; MU_TRY_DCETHREAD( dcethread_create(&thread, NULL, basic_thread, NULL) ); MU_TRY_DCETHREAD( dcethread_interrupt(thread) ); MU_TRY_DCETHREAD( dcethread_join(thread, NULL) ); } MU_TEST(dcethread_cond_wait, interrupt_post) { dcethread* thread; struct timespec ts; ts.tv_nsec = 100000000; ts.tv_sec = 0; MU_TRY_DCETHREAD( dcethread_create(&thread, NULL, basic_thread, NULL) ); MU_TRY_DCETHREAD( dcethread_delay(&ts) ); MU_TRY_DCETHREAD( dcethread_interrupt(thread) ); MU_TRY_DCETHREAD( dcethread_join(thread, NULL) ); } dcethread_mutex global_mutex = DCETHREAD_MUTEX_INITIALIZER; static void* global_lock_thread(void* data) { volatile int interrupt_caught = 0; dcethread_cond cond; MU_TRY_DCETHREAD( dcethread_cond_init(&cond, NULL) ); DCETHREAD_TRY { MU_ASSERT(!interrupt_caught); MU_TRY_DCETHREAD( dcethread_mutex_lock (&global_mutex) ); while (1) { MU_TRY_DCETHREAD( dcethread_cond_wait (&cond, &global_mutex) ); } } DCETHREAD_CATCH(dcethread_interrupt_e) { MU_ASSERT(!interrupt_caught); interrupt_caught = 1; } DCETHREAD_FINALLY { dcethread_mutex_unlock (&global_mutex); } DCETHREAD_ENDTRY; MU_ASSERT(interrupt_caught); return NULL; } MU_TEST(dcethread_cond_wait, interrupt_global) { dcethread* thread; struct timespec ts; ts.tv_nsec = 100000000; ts.tv_sec = 0; MU_TRY_DCETHREAD( dcethread_create(&thread, NULL, global_lock_thread, NULL) ); MU_TRY_DCETHREAD( dcethread_delay(&ts) ); MU_TRY_DCETHREAD( dcethread_mutex_lock(&global_mutex) ); MU_TRY_DCETHREAD( dcethread_interrupt(thread) ); MU_TRY_DCETHREAD( dcethread_mutex_unlock(&global_mutex) ); MU_TRY_DCETHREAD( dcethread_join(thread, NULL) ); } #endif /* TEST */