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00001 /* Licensed to the Apache Software Foundation (ASF) under one or more 00002 * contributor license agreements. See the NOTICE file distributed with 00003 * this work for additional information regarding copyright ownership. 00004 * The ASF licenses this file to You under the Apache License, Version 2.0 00005 * (the "License"); you may not use this file except in compliance with 00006 * the License. You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #ifndef APR_PROC_MUTEX_H 00018 #define APR_PROC_MUTEX_H 00019 00025 #include "apr.h" 00026 #include "apr_pools.h" 00027 #include "apr_errno.h" 00028 00029 #ifdef __cplusplus 00030 extern "C" { 00031 #endif /* __cplusplus */ 00032 00044 typedef enum { 00045 APR_LOCK_FCNTL, 00046 APR_LOCK_FLOCK, 00047 APR_LOCK_SYSVSEM, 00048 APR_LOCK_PROC_PTHREAD, 00049 APR_LOCK_POSIXSEM, 00050 APR_LOCK_DEFAULT 00051 } apr_lockmech_e; 00052 00054 typedef struct apr_proc_mutex_t apr_proc_mutex_t; 00055 00056 /* Function definitions */ 00057 00079 APR_DECLARE(apr_status_t) apr_proc_mutex_create(apr_proc_mutex_t **mutex, 00080 const char *fname, 00081 apr_lockmech_e mech, 00082 apr_pool_t *pool); 00083 00095 APR_DECLARE(apr_status_t) apr_proc_mutex_child_init(apr_proc_mutex_t **mutex, 00096 const char *fname, 00097 apr_pool_t *pool); 00098 00104 APR_DECLARE(apr_status_t) apr_proc_mutex_lock(apr_proc_mutex_t *mutex); 00105 00113 APR_DECLARE(apr_status_t) apr_proc_mutex_trylock(apr_proc_mutex_t *mutex); 00114 00119 APR_DECLARE(apr_status_t) apr_proc_mutex_unlock(apr_proc_mutex_t *mutex); 00120 00125 APR_DECLARE(apr_status_t) apr_proc_mutex_destroy(apr_proc_mutex_t *mutex); 00126 00133 APR_DECLARE(apr_status_t) apr_proc_mutex_cleanup(void *mutex); 00134 00140 APR_DECLARE(const char *) apr_proc_mutex_lockfile(apr_proc_mutex_t *mutex); 00141 00147 APR_DECLARE(const char *) apr_proc_mutex_name(apr_proc_mutex_t *mutex); 00148 00152 APR_DECLARE(const char *) apr_proc_mutex_defname(void); 00153 00158 APR_POOL_DECLARE_ACCESSOR(proc_mutex); 00159 00162 #ifdef __cplusplus 00163 } 00164 #endif 00165 00166 #endif /* ! APR_PROC_MUTEX_H */