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Diffstat (limited to 'rubbos/app/httpd-2.0.64/srclib/apr/include/apr_global_mutex.h')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/srclib/apr/include/apr_global_mutex.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/include/apr_global_mutex.h b/rubbos/app/httpd-2.0.64/srclib/apr/include/apr_global_mutex.h deleted file mode 100644 index 9316001c..00000000 --- a/rubbos/app/httpd-2.0.64/srclib/apr/include/apr_global_mutex.h +++ /dev/null @@ -1,153 +0,0 @@ -/* Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef APR_GLOBAL_MUTEX_H -#define APR_GLOBAL_MUTEX_H - -/** - * @file apr_global_mutex.h - * @brief APR Global Locking Routines - */ - -#include "apr.h" -#include "apr_proc_mutex.h" /* only for apr_lockmech_e */ -#include "apr_pools.h" -#include "apr_errno.h" -#if APR_PROC_MUTEX_IS_GLOBAL -#include "apr_proc_mutex.h" -#endif - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -/** - * @defgroup APR_GlobalMutex Global Locking Routines - * @ingroup APR - * @{ - */ - -#if !APR_PROC_MUTEX_IS_GLOBAL || defined(DOXYGEN) - -/** Opaque global mutex structure. */ -typedef struct apr_global_mutex_t apr_global_mutex_t; - -/* Function definitions */ - -/** - * Create and initialize a mutex that can be used to synchronize both - * processes and threads. Note: There is considerable overhead in using - * this API if only cross-process or cross-thread mutual exclusion is - * required. See apr_proc_mutex.h and apr_thread_mutex.h for more - * specialized lock routines. - * @param mutex the memory address where the newly created mutex will be - * stored. - * @param fname A file name to use if the lock mechanism requires one. This - * argument should always be provided. The lock code itself will - * determine if it should be used. - * @param mech The mechanism to use for the interprocess lock, if any; one of - * <PRE> - * APR_LOCK_FCNTL - * APR_LOCK_FLOCK - * APR_LOCK_SYSVSEM - * APR_LOCK_POSIXSEM - * APR_LOCK_PROC_PTHREAD - * APR_LOCK_DEFAULT pick the default mechanism for the platform - * </PRE> - * @param pool the pool from which to allocate the mutex. - * @warning Check APR_HAS_foo_SERIALIZE defines to see if the platform supports - * APR_LOCK_foo. Only APR_LOCK_DEFAULT is portable. - */ -APR_DECLARE(apr_status_t) apr_global_mutex_create(apr_global_mutex_t **mutex, - const char *fname, - apr_lockmech_e mech, - apr_pool_t *pool); - -/** - * Re-open a mutex in a child process. - * @param mutex The newly re-opened mutex structure. - * @param fname A file name to use if the mutex mechanism requires one. This - * argument should always be provided. The mutex code itself will - * determine if it should be used. This filename should be the - * same one that was passed to apr_global_mutex_create(). - * @param pool The pool to operate on. - * @remark This function must be called to maintain portability, even - * if the underlying lock mechanism does not require it. - */ -APR_DECLARE(apr_status_t) apr_global_mutex_child_init( - apr_global_mutex_t **mutex, - const char *fname, - apr_pool_t *pool); - -/** - * Acquire the lock for the given mutex. If the mutex is already locked, - * the current thread will be put to sleep until the lock becomes available. - * @param mutex the mutex on which to acquire the lock. - */ -APR_DECLARE(apr_status_t) apr_global_mutex_lock(apr_global_mutex_t *mutex); - -/** - * Attempt to acquire the lock for the given mutex. If the mutex has already - * been acquired, the call returns immediately with APR_EBUSY. Note: it - * is important that the APR_STATUS_IS_EBUSY(s) macro be used to determine - * if the return value was APR_EBUSY, for portability reasons. - * @param mutex the mutex on which to attempt the lock acquiring. - */ -APR_DECLARE(apr_status_t) apr_global_mutex_trylock(apr_global_mutex_t *mutex); - -/** - * Release the lock for the given mutex. - * @param mutex the mutex from which to release the lock. - */ -APR_DECLARE(apr_status_t) apr_global_mutex_unlock(apr_global_mutex_t *mutex); - -/** - * Destroy the mutex and free the memory associated with the lock. - * @param mutex the mutex to destroy. - */ -APR_DECLARE(apr_status_t) apr_global_mutex_destroy(apr_global_mutex_t *mutex); - -/** - * Get the pool used by this global_mutex. - * @return apr_pool_t the pool - */ -APR_POOL_DECLARE_ACCESSOR(global_mutex); - -#else /* APR_PROC_MUTEX_IS_GLOBAL */ - -/* Some platforms [e.g. Win32] have cross process locks that are truly - * global locks, since there isn't the concept of cross-process locks. - * Define these platforms in terms of an apr_proc_mutex_t. - */ - -#define apr_global_mutex_t apr_proc_mutex_t -#define apr_global_mutex_create apr_proc_mutex_create -#define apr_global_mutex_child_init apr_proc_mutex_child_init -#define apr_global_mutex_lock apr_proc_mutex_lock -#define apr_global_mutex_trylock apr_proc_mutex_trylock -#define apr_global_mutex_unlock apr_proc_mutex_unlock -#define apr_global_mutex_destroy apr_proc_mutex_destroy -#define apr_global_mutex_pool_get apr_proc_mutex_pool_get - -#endif - -/** @} */ - -#ifdef __cplusplus -} -#endif - -#endif /* ndef APR_GLOBAL_MUTEX_H */ |