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apr_proc_mutex.h

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00001 /* Copyright 2000-2004 The Apache Software Foundation 00002 * 00003 * Licensed under the Apache License, Version 2.0 (the "License"); 00004 * you may not use this file except in compliance with the License. 00005 * You may obtain a copy of the License at 00006 * 00007 * http://www.apache.org/licenses/LICENSE-2.0 00008 * 00009 * Unless required by applicable law or agreed to in writing, software 00010 * distributed under the License is distributed on an "AS IS" BASIS, 00011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00012 * See the License for the specific language governing permissions and 00013 * limitations under the License. 00014 */ 00015 00016 #ifndef APR_PROC_MUTEX_H 00017 #define APR_PROC_MUTEX_H 00018 00024 #include "apr.h" 00025 #include "apr_pools.h" 00026 #include "apr_errno.h" 00027 00028 #ifdef __cplusplus 00029 extern "C" { 00030 #endif /* __cplusplus */ 00031 00043 typedef enum { 00044 APR_LOCK_FCNTL, 00045 APR_LOCK_FLOCK, 00046 APR_LOCK_SYSVSEM, 00047 APR_LOCK_PROC_PTHREAD, 00048 APR_LOCK_POSIXSEM, 00049 APR_LOCK_DEFAULT 00050 } apr_lockmech_e; 00051 00053 typedef struct apr_proc_mutex_t apr_proc_mutex_t; 00054 00055 /* Function definitions */ 00056 00078 APR_DECLARE(apr_status_t) apr_proc_mutex_create(apr_proc_mutex_t **mutex, 00079 const char *fname, 00080 apr_lockmech_e mech, 00081 apr_pool_t *pool); 00082 00094 APR_DECLARE(apr_status_t) apr_proc_mutex_child_init(apr_proc_mutex_t **mutex, 00095 const char *fname, 00096 apr_pool_t *pool); 00097 00103 APR_DECLARE(apr_status_t) apr_proc_mutex_lock(apr_proc_mutex_t *mutex); 00104 00112 APR_DECLARE(apr_status_t) apr_proc_mutex_trylock(apr_proc_mutex_t *mutex); 00113 00118 APR_DECLARE(apr_status_t) apr_proc_mutex_unlock(apr_proc_mutex_t *mutex); 00119 00124 APR_DECLARE(apr_status_t) apr_proc_mutex_destroy(apr_proc_mutex_t *mutex); 00125 00132 APR_DECLARE(apr_status_t) apr_proc_mutex_cleanup(void *mutex); 00133 00139 APR_DECLARE(const char *) apr_proc_mutex_lockfile(apr_proc_mutex_t *mutex); 00140 00146 APR_DECLARE(const char *) apr_proc_mutex_name(apr_proc_mutex_t *mutex); 00147 00151 APR_DECLARE(const char *) apr_proc_mutex_defname(void); 00152 00157 APR_POOL_DECLARE_ACCESSOR(proc_mutex); 00158 00161 #ifdef __cplusplus 00162 } 00163 #endif 00164 00165 #endif /* ! APR_PROC_MUTEX_H */

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