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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 00059 #ifndef APR_ANYLOCK_H 00060 #define APR_ANYLOCK_H 00061 00062 #include "apr_proc_mutex.h" 00063 #include "apr_thread_mutex.h" 00064 #include "apr_thread_rwlock.h" 00065 00067 typedef struct apr_anylock_t { 00069 enum tm_lock { 00070 apr_anylock_none, 00071 apr_anylock_procmutex, 00072 apr_anylock_threadmutex, 00073 apr_anylock_readlock, 00074 apr_anylock_writelock 00075 } type; 00077 union apr_anylock_u_t { 00078 apr_proc_mutex_t *pm; 00079 #if APR_HAS_THREADS 00080 apr_thread_mutex_t *tm; 00081 apr_thread_rwlock_t *rw; 00082 #endif 00083 } lock; 00084 } apr_anylock_t; 00085 00086 #if APR_HAS_THREADS 00087 00089 #define APR_ANYLOCK_LOCK(lck) \ 00090 (((lck)->type == apr_anylock_none) \ 00091 ? APR_SUCCESS \ 00092 : (((lck)->type == apr_anylock_threadmutex) \ 00093 ? apr_thread_mutex_lock((lck)->lock.tm) \ 00094 : (((lck)->type == apr_anylock_procmutex) \ 00095 ? apr_proc_mutex_lock((lck)->lock.pm) \ 00096 : (((lck)->type == apr_anylock_readlock) \ 00097 ? apr_thread_rwlock_rdlock((lck)->lock.rw) \ 00098 : (((lck)->type == apr_anylock_writelock) \ 00099 ? apr_thread_rwlock_wrlock((lck)->lock.rw) \ 00100 : APR_EINVAL))))) 00101 00102 #else /* APR_HAS_THREADS */ 00103 00104 #define APR_ANYLOCK_LOCK(lck) \ 00105 (((lck)->type == apr_anylock_none) \ 00106 ? APR_SUCCESS \ 00107 : (((lck)->type == apr_anylock_procmutex) \ 00108 ? apr_proc_mutex_lock((lck)->lock.pm) \ 00109 : APR_EINVAL)) 00110 00111 #endif /* APR_HAS_THREADS */ 00112 00113 #if APR_HAS_THREADS 00114 00116 #define APR_ANYLOCK_TRYLOCK(lck) \ 00117 (((lck)->type == apr_anylock_none) \ 00118 ? APR_SUCCESS \ 00119 : (((lck)->type == apr_anylock_threadmutex) \ 00120 ? apr_thread_mutex_trylock((lck)->lock.tm) \ 00121 : (((lck)->type == apr_anylock_procmutex) \ 00122 ? apr_proc_mutex_trylock((lck)->lock.pm) \ 00123 : (((lck)->type == apr_anylock_readlock) \ 00124 ? apr_thread_rwlock_tryrdlock((lck)->lock.rw) \ 00125 : (((lck)->type == apr_anylock_writelock) \ 00126 ? apr_thread_rwlock_trywrlock((lck)->lock.rw) \ 00127 : APR_EINVAL))))) 00128 00129 #else /* APR_HAS_THREADS */ 00130 00131 #define APR_ANYLOCK_TRYLOCK(lck) \ 00132 (((lck)->type == apr_anylock_none) \ 00133 ? APR_SUCCESS \ 00134 : (((lck)->type == apr_anylock_procmutex) \ 00135 ? apr_proc_mutex_trylock((lck)->lock.pm) \ 00136 : APR_EINVAL)) 00137 00138 #endif /* APR_HAS_THREADS */ 00139 00140 #if APR_HAS_THREADS 00141 00143 #define APR_ANYLOCK_UNLOCK(lck) \ 00144 (((lck)->type == apr_anylock_none) \ 00145 ? APR_SUCCESS \ 00146 : (((lck)->type == apr_anylock_threadmutex) \ 00147 ? apr_thread_mutex_unlock((lck)->lock.tm) \ 00148 : (((lck)->type == apr_anylock_procmutex) \ 00149 ? apr_proc_mutex_unlock((lck)->lock.pm) \ 00150 : ((((lck)->type == apr_anylock_readlock) || \ 00151 ((lck)->type == apr_anylock_writelock)) \ 00152 ? apr_thread_rwlock_unlock((lck)->lock.rw) \ 00153 : APR_EINVAL)))) 00154 00155 #else /* APR_HAS_THREADS */ 00156 00157 #define APR_ANYLOCK_UNLOCK(lck) \ 00158 (((lck)->type == apr_anylock_none) \ 00159 ? APR_SUCCESS \ 00160 : (((lck)->type == apr_anylock_procmutex) \ 00161 ? apr_proc_mutex_unlock((lck)->lock.pm) \ 00162 : APR_EINVAL)) 00163 00164 #endif /* APR_HAS_THREADS */ 00165 00166 #endif /* !APR_ANYLOCK_H */

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