00001 /* ==================================================================== 00002 * The Apache Software License, Version 1.1 00003 * 00004 * Copyright (c) 2000-2003 The Apache Software Foundation. All rights 00005 * reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 00014 * 2. Redistributions in binary form must reproduce the above copyright 00015 * notice, this list of conditions and the following disclaimer in 00016 * the documentation and/or other materials provided with the 00017 * distribution. 00018 * 00019 * 3. The end-user documentation included with the redistribution, 00020 * if any, must include the following acknowledgment: 00021 * "This product includes software developed by the 00022 * Apache Software Foundation (http://www.apache.org/)." 00023 * Alternately, this acknowledgment may appear in the software itself, 00024 * if and wherever such third-party acknowledgments normally appear. 00025 * 00026 * 4. The names "Apache" and "Apache Software Foundation" must 00027 * not be used to endorse or promote products derived from this 00028 * software without prior written permission. For written 00029 * permission, please contact apache@apache.org. 00030 * 00031 * 5. Products derived from this software may not be called "Apache", 00032 * nor may "Apache" appear in their name, without prior written 00033 * permission of the Apache Software Foundation. 00034 * 00035 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00036 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00037 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00038 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00039 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00040 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00041 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00042 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00043 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00044 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00045 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00046 * SUCH DAMAGE. 00047 * ==================================================================== 00048 * 00049 * This software consists of voluntary contributions made by many 00050 * individuals on behalf of the Apache Software Foundation. For more 00051 * information on the Apache Software Foundation, please see 00052 * <http://www.apache.org/>. 00053 */ 00054 00055 #ifndef APR_THREAD_MUTEX_H 00056 #define APR_THREAD_MUTEX_H 00057 00063 #include "apr.h" 00064 #include "apr_errno.h" 00065 00066 #ifdef __cplusplus 00067 extern "C" { 00068 #endif /* __cplusplus */ 00069 00070 #if APR_HAS_THREADS || defined(DOXYGEN) 00071 00079 typedef struct apr_thread_mutex_t apr_thread_mutex_t; 00080 00081 #define APR_THREAD_MUTEX_DEFAULT 0x0 00082 #define APR_THREAD_MUTEX_NESTED 0x1 00083 #define APR_THREAD_MUTEX_UNNESTED 0x2 00085 /* Delayed the include to avoid a circular reference */ 00086 #include "apr_pools.h" 00087 00103 APR_DECLARE(apr_status_t) apr_thread_mutex_create(apr_thread_mutex_t **mutex, 00104 unsigned int flags, 00105 apr_pool_t *pool); 00111 APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex); 00112 00120 APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex); 00121 00126 APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex); 00127 00132 APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex); 00133 00138 APR_POOL_DECLARE_ACCESSOR(thread_mutex); 00139 00140 #endif /* APR_HAS_THREADS */ 00141 00144 #ifdef __cplusplus 00145 } 00146 #endif 00147 00148 #endif /* ! APR_THREAD_MUTEX_H */