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Diffstat (limited to 'rubbos/app/httpd-2.0.64/srclib/apr-util/include/apr_anylock.h')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/srclib/apr-util/include/apr_anylock.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/srclib/apr-util/include/apr_anylock.h b/rubbos/app/httpd-2.0.64/srclib/apr-util/include/apr_anylock.h new file mode 100644 index 00000000..6b724de2 --- /dev/null +++ b/rubbos/app/httpd-2.0.64/srclib/apr-util/include/apr_anylock.h @@ -0,0 +1,128 @@ +/* Copyright 2000-2005 The Apache Software Foundation or its licensors, as + * applicable. + * + * Licensed 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. + */ + +/** + * @file apr_anylock.h + * @brief APR-Util transparent any lock flavor wrapper + */ +#ifndef APR_ANYLOCK_H +#define APR_ANYLOCK_H + +#include "apr_proc_mutex.h" +#include "apr_thread_mutex.h" +#include "apr_thread_rwlock.h" + +/** Structure that may contain any APR lock type */ +typedef struct apr_anylock_t { + /** Indicates what type of lock is in lock */ + enum tm_lock { + apr_anylock_none, /**< None */ + apr_anylock_procmutex, /**< Process-based */ + apr_anylock_threadmutex, /**< Thread-based */ + apr_anylock_readlock, /**< Read lock */ + apr_anylock_writelock /**< Write lock */ + } type; + /** Union of all possible APR locks */ + union apr_anylock_u_t { + apr_proc_mutex_t *pm; /**< Process mutex */ +#if APR_HAS_THREADS + apr_thread_mutex_t *tm; /**< Thread mutex */ + apr_thread_rwlock_t *rw; /**< Read-write lock */ +#endif + } lock; +} apr_anylock_t; + +#if APR_HAS_THREADS + +/** Lock an apr_anylock_t structure */ +#define APR_ANYLOCK_LOCK(lck) \ + (((lck)->type == apr_anylock_none) \ + ? APR_SUCCESS \ + : (((lck)->type == apr_anylock_threadmutex) \ + ? apr_thread_mutex_lock((lck)->lock.tm) \ + : (((lck)->type == apr_anylock_procmutex) \ + ? apr_proc_mutex_lock((lck)->lock.pm) \ + : (((lck)->type == apr_anylock_readlock) \ + ? apr_thread_rwlock_rdlock((lck)->lock.rw) \ + : (((lck)->type == apr_anylock_writelock) \ + ? apr_thread_rwlock_wrlock((lck)->lock.rw) \ + : APR_EINVAL))))) + +#else /* APR_HAS_THREADS */ + +#define APR_ANYLOCK_LOCK(lck) \ + (((lck)->type == apr_anylock_none) \ + ? APR_SUCCESS \ + : (((lck)->type == apr_anylock_procmutex) \ + ? apr_proc_mutex_lock((lck)->lock.pm) \ + : APR_EINVAL)) + +#endif /* APR_HAS_THREADS */ + +#if APR_HAS_THREADS + +/** Try to lock an apr_anylock_t structure */ +#define APR_ANYLOCK_TRYLOCK(lck) \ + (((lck)->type == apr_anylock_none) \ + ? APR_SUCCESS \ + : (((lck)->type == apr_anylock_threadmutex) \ + ? apr_thread_mutex_trylock((lck)->lock.tm) \ + : (((lck)->type == apr_anylock_procmutex) \ + ? apr_proc_mutex_trylock((lck)->lock.pm) \ + : (((lck)->type == apr_anylock_readlock) \ + ? apr_thread_rwlock_tryrdlock((lck)->lock.rw) \ + : (((lck)->type == apr_anylock_writelock) \ + ? apr_thread_rwlock_trywrlock((lck)->lock.rw) \ + : APR_EINVAL))))) + +#else /* APR_HAS_THREADS */ + +#define APR_ANYLOCK_TRYLOCK(lck) \ + (((lck)->type == apr_anylock_none) \ + ? APR_SUCCESS \ + : (((lck)->type == apr_anylock_procmutex) \ + ? apr_proc_mutex_trylock((lck)->lock.pm) \ + : APR_EINVAL)) + +#endif /* APR_HAS_THREADS */ + +#if APR_HAS_THREADS + +/** Unlock an apr_anylock_t structure */ +#define APR_ANYLOCK_UNLOCK(lck) \ + (((lck)->type == apr_anylock_none) \ + ? APR_SUCCESS \ + : (((lck)->type == apr_anylock_threadmutex) \ + ? apr_thread_mutex_unlock((lck)->lock.tm) \ + : (((lck)->type == apr_anylock_procmutex) \ + ? apr_proc_mutex_unlock((lck)->lock.pm) \ + : ((((lck)->type == apr_anylock_readlock) || \ + ((lck)->type == apr_anylock_writelock)) \ + ? apr_thread_rwlock_unlock((lck)->lock.rw) \ + : APR_EINVAL)))) + +#else /* APR_HAS_THREADS */ + +#define APR_ANYLOCK_UNLOCK(lck) \ + (((lck)->type == apr_anylock_none) \ + ? APR_SUCCESS \ + : (((lck)->type == apr_anylock_procmutex) \ + ? apr_proc_mutex_unlock((lck)->lock.pm) \ + : APR_EINVAL)) + +#endif /* APR_HAS_THREADS */ + +#endif /* !APR_ANYLOCK_H */ |