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Name	Size	Permission
apr-x86_64.h	17.89 KB	-rw-r--r--
apr.h	636 B	-rw-r--r--
apr_allocator.h	6.07 KB	-rw-r--r--
apr_anylock.h	4.93 KB	-rw-r--r--
apr_atomic.h	6.04 KB	-rw-r--r--
apr_base64.h	3.75 KB	-rw-r--r--
apr_buckets.h	63.15 KB	-rw-r--r--
apr_crypto.h	19.68 KB	-rw-r--r--
apr_cstr.h	11.13 KB	-rw-r--r--
apr_date.h	3.47 KB	-rw-r--r--
apr_dbd.h	23.35 KB	-rw-r--r--
apr_dbm.h	8.4 KB	-rw-r--r--
apr_dso.h	2.64 KB	-rw-r--r--
apr_encode.h	30.35 KB	-rw-r--r--
apr_env.h	2.06 KB	-rw-r--r--
apr_errno.h	53.77 KB	-rw-r--r--
apr_escape.h	17.23 KB	-rw-r--r--
apr_file_info.h	17.17 KB	-rw-r--r--
apr_file_io.h	42.88 KB	-rw-r--r--
apr_fnmatch.h	6.08 KB	-rw-r--r--
apr_general.h	7.34 KB	-rw-r--r--
apr_getopt.h	5.84 KB	-rw-r--r--
apr_global_mutex.h	7.19 KB	-rw-r--r--
apr_hash.h	10.08 KB	-rw-r--r--
apr_hooks.h	12.36 KB	-rw-r--r--
apr_inherit.h	2.09 KB	-rw-r--r--
apr_ldap.h	5.57 KB	-rw-r--r--
apr_ldap_init.h	5.64 KB	-rw-r--r--
apr_ldap_option.h	8.4 KB	-rw-r--r--
apr_ldap_rebind.h	3.09 KB	-rw-r--r--
apr_ldap_url.h	3.71 KB	-rw-r--r--
apr_lib.h	8.23 KB	-rw-r--r--
apr_md4.h	4.42 KB	-rw-r--r--
apr_md5.h	6.2 KB	-rw-r--r--
apr_memcache.h	16.82 KB	-rw-r--r--
apr_mmap.h	5.01 KB	-rw-r--r--
apr_network_io.h	36.02 KB	-rw-r--r--
apr_optional.h	2.71 KB	-rw-r--r--
apr_optional_hooks.h	3.78 KB	-rw-r--r--
apr_perms_set.h	1.86 KB	-rw-r--r--
apr_poll.h	20.6 KB	-rw-r--r--
apr_pools.h	30.94 KB	-rw-r--r--
apr_portable.h	20.02 KB	-rw-r--r--
apr_proc_mutex.h	6.85 KB	-rw-r--r--
apr_queue.h	3.98 KB	-rw-r--r--
apr_random.h	4.92 KB	-rw-r--r--
apr_redis.h	15.62 KB	-rw-r--r--
apr_reslist.h	7.01 KB	-rw-r--r--
apr_ring.h	18.78 KB	-rw-r--r--
apr_rmm.h	4.67 KB	-rw-r--r--
apr_sdbm.h	5.97 KB	-rw-r--r--
apr_sha1.h	3.79 KB	-rw-r--r--
apr_shm.h	9.26 KB	-rw-r--r--
apr_signal.h	2.7 KB	-rw-r--r--
apr_siphash.h	6.01 KB	-rw-r--r--
apr_skiplist.h	14.19 KB	-rw-r--r--
apr_strings.h	14.55 KB	-rw-r--r--
apr_strmatch.h	2.61 KB	-rw-r--r--
apr_support.h	1.6 KB	-rw-r--r--
apr_tables.h	18.9 KB	-rw-r--r--
apr_thread_cond.h	5.4 KB	-rw-r--r--
apr_thread_mutex.h	4.39 KB	-rw-r--r--
apr_thread_pool.h	10.84 KB	-rw-r--r--
apr_thread_proc.h	36.8 KB	-rw-r--r--
apr_thread_rwlock.h	4.65 KB	-rw-r--r--
apr_time.h	7.39 KB	-rw-r--r--
apr_uri.h	6.43 KB	-rw-r--r--
apr_user.h	5.19 KB	-rw-r--r--
apr_uuid.h	2.05 KB	-rw-r--r--
apr_version.h	5.22 KB	-rw-r--r--
apr_want.h	2.89 KB	-rw-r--r--
apr_xlate.h	6.26 KB	-rw-r--r--
apr_xml.h	12.19 KB	-rw-r--r--
apu.h	4.22 KB	-rw-r--r--
apu_errno.h	5.32 KB	-rw-r--r--
apu_version.h	4.2 KB	-rw-r--r--
apu_want.h	1.45 KB	-rw-r--r--

Code Editor : apr_reslist.h

/* 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_RESLIST_H
#define APR_RESLIST_H

/** 
 * @file apr_reslist.h
 * @brief APR-UTIL Resource List Routines
 */

#include "apr.h"
#include "apu.h"
#include "apr_pools.h"
#include "apr_errno.h"
#include "apr_time.h"

/**
 * @defgroup APR_Util_RL Resource List Routines
 * @ingroup APR_Util
 * @{
 */

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

/** Opaque resource list object */
typedef struct apr_reslist_t apr_reslist_t;

/* Generic constructor called by resource list when it needs to create a
 * resource.
 * @param resource opaque resource
 * @param params flags
 * @param pool  Pool
 */
typedef apr_status_t (*apr_reslist_constructor)(void **resource, void *params,
                                                apr_pool_t *pool);

/* Generic destructor called by resource list when it needs to destroy a
 * resource.
 * @param resource opaque resource
 * @param params flags
 * @param pool  Pool
 */
typedef apr_status_t (*apr_reslist_destructor)(void *resource, void *params,
                                               apr_pool_t *pool);

/* Cleanup order modes */
#define APR_RESLIST_CLEANUP_DEFAULT  0       /**< default pool cleanup */
#define APR_RESLIST_CLEANUP_FIRST    1       /**< use pool pre cleanup */

/**
 * Create a new resource list with the following parameters:
 * @param reslist An address where the pointer to the new resource
 *                list will be stored.
 * @param min Allowed minimum number of available resources. Zero
 *            creates new resources only when needed.
 * @param smax Resources will be destroyed during reslist maintenance to
 *             meet this maximum restriction as they expire (reach their ttl).
 * @param hmax Absolute maximum limit on the number of total resources.
 * @param ttl If non-zero, sets the maximum amount of time in microseconds an
 *            unused resource is valid.  Any resource which has exceeded this
 *            time will be destroyed, either when encountered by
 *            apr_reslist_acquire() or during reslist maintenance.
 * @param con Constructor routine that is called to create a new resource.
 * @param de Destructor routine that is called to destroy an expired resource.
 * @param params Passed to constructor and deconstructor
 * @param pool The pool from which to create this resource list. Also the
 *             same pool that is passed to the constructor and destructor
 *             routines.
 * @remark If APR has been compiled without thread support, hmax will be
 *         automatically set to 1 and values of min and smax will be forced to
 *         1 for any non-zero value.
 */
APU_DECLARE(apr_status_t) apr_reslist_create(apr_reslist_t **reslist,
                                             int min, int smax, int hmax,
                                             apr_interval_time_t ttl,
                                             apr_reslist_constructor con,
                                             apr_reslist_destructor de,
                                             void *params,
                                             apr_pool_t *pool);

/**
 * Destroy the given resource list and all resources controlled by
 * this list.
 * FIXME: Should this block until all resources become available,
 *        or maybe just destroy all the free ones, or maybe destroy
 *        them even though they might be in use by something else?
 *        Currently it will abort if there are resources that haven't
 *        been released, so there is an assumption that all resources
 *        have been released to the list before calling this function.
 * @param reslist The reslist to destroy
 */
APU_DECLARE(apr_status_t) apr_reslist_destroy(apr_reslist_t *reslist);

/**
 * Retrieve a resource from the list, creating a new one if necessary.
 * If we have met our maximum number of resources, we will block
 * until one becomes available.
 * @param reslist The resource list.
 * @param resource An address where the pointer to the resource
 *                will be stored.
 */
APU_DECLARE(apr_status_t) apr_reslist_acquire(apr_reslist_t *reslist,
                                              void **resource);

/**
 * Return a resource back to the list of available resources.
 * @param reslist The resource list.
 * @param resource The resource to return to the list.
 */
APU_DECLARE(apr_status_t) apr_reslist_release(apr_reslist_t *reslist,
                                              void *resource);

/**
 * Set the timeout the acquire will wait for a free resource
 * when the maximum number of resources is exceeded.
 * @param reslist The resource list.
 * @param timeout Timeout to wait. The zero waits forever.
 */
APU_DECLARE(void) apr_reslist_timeout_set(apr_reslist_t *reslist,
                                          apr_interval_time_t timeout);

/**
 * Return the number of outstanding resources.
 * @param reslist The resource list.
 */
APU_DECLARE(apr_uint32_t) apr_reslist_acquired_count(apr_reslist_t *reslist);

/**
 * Invalidate a resource in the pool - e.g. a database connection
 * that returns a "lost connection" error and can't be restored.
 * Use this instead of apr_reslist_release if the resource is bad.
 * @param reslist The resource list.
 * @param resource The resource to invalidate.
 */
APU_DECLARE(apr_status_t) apr_reslist_invalidate(apr_reslist_t *reslist,
                                                 void *resource);

/**
 * Perform routine maintenance on the resource list. This call
 * may instantiate new resources or expire old resources.
 * @param reslist The resource list.
 */
APU_DECLARE(apr_status_t) apr_reslist_maintain(apr_reslist_t *reslist);

/**
 * Set reslist cleanup order.
 * @param reslist The resource list.
 * @param mode Cleanup order mode
 * <PRE>
 *           APR_RESLIST_CLEANUP_DEFAULT  default pool cleanup order
 *           APR_RESLIST_CLEANUP_FIRST    use pool pre cleanup
 * </PRE>
 * @remark If APR_RESLIST_CLEANUP_FIRST is used the destructors will
 * be called before child pools of the pool used to create the reslist
 * are destroyed. This allows to explicitly destroy the child pools
 * inside reslist destructors.
 */
APU_DECLARE(void) apr_reslist_cleanup_order_set(apr_reslist_t *reslist,
                                                apr_uint32_t mode);

#ifdef __cplusplus
}
#endif

/** @} */

#endif  /* ! APR_RESLIST_H */

${this.title}

Code Editor : apr_reslist.h