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apr_global_mutex.h
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1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2  * contributor license agreements. See the NOTICE file distributed with
3  * this work for additional information regarding copyright ownership.
4  * The ASF licenses this file to You under the Apache License, Version 2.0
5  * (the "License"); you may not use this file except in compliance with
6  * the License. You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef APR_GLOBAL_MUTEX_H
18 #define APR_GLOBAL_MUTEX_H
19 
25 #include "apr.h"
26 #include "apr_proc_mutex.h" /* only for apr_lockmech_e */
27 #include "apr_pools.h"
28 #include "apr_errno.h"
29 #if APR_PROC_MUTEX_IS_GLOBAL
30 #include "apr_proc_mutex.h"
31 #endif
32 #include "apr_time.h"
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif /* __cplusplus */
37 
44 #if !APR_PROC_MUTEX_IS_GLOBAL || defined(DOXYGEN)
45 
48 
49 /* Function definitions */
50 
77  const char *fname,
78  apr_lockmech_e mech,
79  apr_pool_t *pool);
80 
93  apr_global_mutex_t **mutex,
94  const char *fname,
95  apr_pool_t *pool);
96 
103 
112 
122  apr_interval_time_t timeout);
123 
129 
135 
142 
149 
156 
160 APR_PERMS_SET_IMPLEMENT(global_mutex);
161 
166 APR_POOL_DECLARE_ACCESSOR(global_mutex);
167 
168 #else /* APR_PROC_MUTEX_IS_GLOBAL */
169 
170 /* Some platforms [e.g. Win32] have cross process locks that are truly
171  * global locks, since there isn't the concept of cross-process locks.
172  * Define these platforms in terms of an apr_proc_mutex_t.
173  */
174 
175 #define apr_global_mutex_t apr_proc_mutex_t
176 #define apr_global_mutex_create apr_proc_mutex_create
177 #define apr_global_mutex_child_init apr_proc_mutex_child_init
178 #define apr_global_mutex_lock apr_proc_mutex_lock
179 #define apr_global_mutex_trylock apr_proc_mutex_trylock
180 #define apr_global_mutex_unlock apr_proc_mutex_unlock
181 #define apr_global_mutex_destroy apr_proc_mutex_destroy
182 #define apr_global_mutex_lockfile apr_proc_mutex_lockfile
183 #define apr_global_mutex_mech apr_proc_mutex_mech
184 #define apr_global_mutex_name apr_proc_mutex_name
185 #define apr_global_mutex_perms_set apr_proc_mutex_perms_set
186 #define apr_global_mutex_pool_get apr_proc_mutex_pool_get
187 
188 #endif
189 
192 #ifdef __cplusplus
193 }
194 #endif
195 
196 #endif /* ndef APR_GLOBAL_MUTEX_H */
apr_status_t apr_global_mutex_create(apr_global_mutex_t **mutex, const char *fname, apr_lockmech_e mech, apr_pool_t *pool)
const char * apr_global_mutex_lockfile(apr_global_mutex_t *mutex)
apr_bucket_brigade request_rec apr_pool_t * pool
Definition: mod_dav.h:552
apr_status_t apr_global_mutex_lock(apr_global_mutex_t *mutex)
const char * apr_global_mutex_name(apr_global_mutex_t *mutex)
apr_status_t apr_global_mutex_unlock(apr_global_mutex_t *mutex)
apr_int64_t apr_interval_time_t
Definition: apr_time.h:55
Definition: apr_arch_global_mutex.h:23
APR memory allocation.
apr_thread_mutex_t * mutex
Definition: apr_arch_global_mutex.h:25
APR Error Codes.
apr_status_t apr_global_mutex_trylock(apr_global_mutex_t *mutex)
apr_lockmech_e
Definition: apr_proc_mutex.h:46
APR Platform Definitions.
apr_lockmech_e apr_global_mutex_mech(apr_global_mutex_t *mutex)
APR Process Locking Routines.
APR_POOL_DECLARE_ACCESSOR(global_mutex)
APR_PERMS_SET_IMPLEMENT(global_mutex)
#define APR_DECLARE(x)
Definition: macros.h:6
apr_status_t apr_global_mutex_timedlock(apr_global_mutex_t *mutex, apr_interval_time_t timeout)
struct apr_pool_t apr_pool_t
Definition: apr_pools.h:60
apr_status_t apr_global_mutex_child_init(apr_global_mutex_t **mutex, const char *fname, apr_pool_t *pool)
int apr_status_t
Definition: apr_errno.h:44
APR Time Library.
apr_status_t apr_global_mutex_destroy(apr_global_mutex_t *mutex)