3604 lines
107 KiB
C
3604 lines
107 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2015, Digium, Inc.
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*
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* Joshua Colp <jcolp@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*!
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* \file
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*
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* \brief Sorcery Memory Cache Object Wizard
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*
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* \author Joshua Colp <jcolp@digium.com>
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include "asterisk/module.h"
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#include "asterisk/sorcery.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/sched.h"
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#include "asterisk/test.h"
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#include "asterisk/heap.h"
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#include "asterisk/cli.h"
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#include "asterisk/manager.h"
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/*** DOCUMENTATION
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<manager name="SorceryMemoryCacheExpireObject" language="en_US">
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<synopsis>
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Expire (remove) an object from a sorcery memory cache.
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</synopsis>
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<syntax>
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<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
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<parameter name="Cache" required="true">
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<para>The name of the cache to expire the object from.</para>
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</parameter>
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<parameter name="Object" required="true">
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<para>The name of the object to expire.</para>
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</parameter>
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</syntax>
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<description>
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<para>Expires (removes) an object from a sorcery memory cache. If full backend caching is enabled
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this action is not available and will fail. In this case the SorceryMemoryCachePopulate or
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SorceryMemoryCacheExpire AMI actions must be used instead.</para>
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</description>
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</manager>
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<manager name="SorceryMemoryCacheExpire" language="en_US">
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<synopsis>
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Expire (remove) ALL objects from a sorcery memory cache.
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</synopsis>
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<syntax>
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<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
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<parameter name="Cache" required="true">
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<para>The name of the cache to expire all objects from.</para>
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</parameter>
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</syntax>
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<description>
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<para>Expires (removes) ALL objects from a sorcery memory cache.</para>
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</description>
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</manager>
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<manager name="SorceryMemoryCacheStaleObject" language="en_US">
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<synopsis>
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Mark an object in a sorcery memory cache as stale.
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</synopsis>
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<syntax>
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<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
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<parameter name="Cache" required="true">
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<para>The name of the cache to mark the object as stale in.</para>
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</parameter>
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<parameter name="Object" required="true">
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<para>The name of the object to mark as stale.</para>
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</parameter>
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<parameter name="Reload" required="false">
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<para>If true, then immediately reload the object from the backend cache instead of waiting for the next retrieval</para>
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</parameter>
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</syntax>
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<description>
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<para>Marks an object as stale within a sorcery memory cache.</para>
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</description>
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</manager>
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<manager name="SorceryMemoryCacheStale" language="en_US">
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<synopsis>
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Marks ALL objects in a sorcery memory cache as stale.
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</synopsis>
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<syntax>
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<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
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<parameter name="Cache" required="true">
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<para>The name of the cache to mark all object as stale in.</para>
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</parameter>
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</syntax>
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<description>
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<para>Marks ALL objects in a sorcery memory cache as stale.</para>
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</description>
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</manager>
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<manager name="SorceryMemoryCachePopulate" language="en_US">
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<synopsis>
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Expire all objects from a memory cache and populate it with all objects from the backend.
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</synopsis>
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<syntax>
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<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
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<parameter name="Cache" required="true">
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<para>The name of the cache to populate.</para>
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</parameter>
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</syntax>
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<description>
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<para>Expires all objects from a memory cache and populate it with all objects from the backend.</para>
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</description>
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</manager>
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***/
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/*! \brief Structure for storing a memory cache */
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struct sorcery_memory_cache {
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/*! \brief The name of the memory cache */
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char *name;
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/*! \brief Objects in the cache */
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struct ao2_container *objects;
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/*! \brief The maximum number of objects permitted in the cache, 0 if no limit */
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unsigned int maximum_objects;
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/*! \brief The maximum time (in seconds) an object will stay in the cache, 0 if no limit */
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unsigned int object_lifetime_maximum;
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/*! \brief The amount of time (in seconds) before an object is marked as stale, 0 if disabled */
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unsigned int object_lifetime_stale;
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/*! \brief Whether all objects are expired when the object type is reloaded, 0 if disabled */
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unsigned int expire_on_reload;
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/*! \brief Whether this is a cache of the entire backend, 0 if disabled */
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unsigned int full_backend_cache;
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/*! \brief Heap of cached objects. Oldest object is at the top. */
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struct ast_heap *object_heap;
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/*! \brief Scheduler item for expiring oldest object. */
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int expire_id;
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/*! \brief scheduler id of stale update task */
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int stale_update_sched_id;
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/*! \brief An unreffed pointer to the sorcery instance, accessible only with lock held */
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const struct ast_sorcery *sorcery;
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/*! \brief The type of object we are caching */
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char *object_type;
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/*! TRUE if trying to stop the oldest object expiration scheduler item. */
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unsigned int del_expire:1;
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#ifdef TEST_FRAMEWORK
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/*! \brief Variable used to indicate we should notify a test when we reach empty */
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unsigned int cache_notify;
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/*! \brief Mutex lock used for signaling when the cache has reached empty */
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ast_mutex_t lock;
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/*! \brief Condition used for signaling when the cache has reached empty */
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ast_cond_t cond;
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/*! \brief Variable that is set when the cache has reached empty */
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unsigned int cache_completed;
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#endif
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};
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/*! \brief Structure for stored a cached object */
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struct sorcery_memory_cached_object {
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/*! \brief The cached object */
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void *object;
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/*! \brief The time at which the object was created */
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struct timeval created;
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/*! \brief index required by heap */
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ssize_t __heap_index;
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/*! \brief scheduler id of stale update task */
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int stale_update_sched_id;
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/*! \brief Cached objectset for field and regex retrieval */
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struct ast_variable *objectset;
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};
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/*! \brief Structure used for fields comparison */
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struct sorcery_memory_cache_fields_cmp_params {
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/*! \brief Pointer to the sorcery structure */
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const struct ast_sorcery *sorcery;
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/*! \brief The sorcery memory cache */
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struct sorcery_memory_cache *cache;
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/*! \brief Pointer to the fields to check */
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const struct ast_variable *fields;
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/*! \brief Regular expression for checking object id */
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regex_t *regex;
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/*! \brief Prefix for matching object id */
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const char *prefix;
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/*! \brief Prefix length in bytes for matching object id */
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const size_t prefix_len;
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/*! \brief Optional container to put object into */
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struct ao2_container *container;
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};
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static void *sorcery_memory_cache_open(const char *data);
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static int sorcery_memory_cache_create(const struct ast_sorcery *sorcery, void *data, void *object);
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static void sorcery_memory_cache_load(void *data, const struct ast_sorcery *sorcery, const char *type);
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static void sorcery_memory_cache_reload(void *data, const struct ast_sorcery *sorcery, const char *type);
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static void *sorcery_memory_cache_retrieve_id(const struct ast_sorcery *sorcery, void *data, const char *type,
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const char *id);
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static void *sorcery_memory_cache_retrieve_fields(const struct ast_sorcery *sorcery, void *data, const char *type,
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const struct ast_variable *fields);
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static void sorcery_memory_cache_retrieve_multiple(const struct ast_sorcery *sorcery, void *data, const char *type,
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struct ao2_container *objects, const struct ast_variable *fields);
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static void sorcery_memory_cache_retrieve_regex(const struct ast_sorcery *sorcery, void *data, const char *type,
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struct ao2_container *objects, const char *regex);
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static void sorcery_memory_cache_retrieve_prefix(const struct ast_sorcery *sorcery, void *data, const char *type,
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struct ao2_container *objects, const char *prefix, const size_t prefix_len);
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static int sorcery_memory_cache_delete(const struct ast_sorcery *sorcery, void *data, void *object);
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static void sorcery_memory_cache_close(void *data);
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static struct ast_sorcery_wizard memory_cache_object_wizard = {
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.name = "memory_cache",
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.open = sorcery_memory_cache_open,
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.create = sorcery_memory_cache_create,
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.update = sorcery_memory_cache_create,
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.delete = sorcery_memory_cache_delete,
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.load = sorcery_memory_cache_load,
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.reload = sorcery_memory_cache_reload,
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.retrieve_id = sorcery_memory_cache_retrieve_id,
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.retrieve_fields = sorcery_memory_cache_retrieve_fields,
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.retrieve_multiple = sorcery_memory_cache_retrieve_multiple,
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.retrieve_regex = sorcery_memory_cache_retrieve_regex,
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.retrieve_prefix = sorcery_memory_cache_retrieve_prefix,
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.close = sorcery_memory_cache_close,
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};
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/*! \brief The bucket size for the container of caches */
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#define CACHES_CONTAINER_BUCKET_SIZE 53
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/*! \brief The default bucket size for the container of objects in the cache */
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#define CACHE_CONTAINER_BUCKET_SIZE 53
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/*! \brief Height of heap for cache object heap. Allows 31 initial objects */
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#define CACHE_HEAP_INIT_HEIGHT 5
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/*! \brief Container of created caches */
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static struct ao2_container *caches;
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/*! \brief Scheduler for cache management */
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static struct ast_sched_context *sched;
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#define PASSTHRU_UPDATE_THREAD_ID 0x5EED1E55
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AST_THREADSTORAGE(passthru_update_id_storage);
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static int is_passthru_update(void)
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{
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uint32_t *passthru_update_thread_id;
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passthru_update_thread_id = ast_threadstorage_get(&passthru_update_id_storage,
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sizeof(*passthru_update_thread_id));
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if (!passthru_update_thread_id) {
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return 0;
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}
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return *passthru_update_thread_id == PASSTHRU_UPDATE_THREAD_ID;
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}
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static void set_passthru_update(uint32_t value)
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{
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uint32_t *passthru_update_thread_id;
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passthru_update_thread_id = ast_threadstorage_get(&passthru_update_id_storage,
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sizeof(*passthru_update_thread_id));
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if (!passthru_update_thread_id) {
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ast_log(LOG_ERROR, "Could not set passthru update ID for sorcery memory cache thread\n");
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return;
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}
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*passthru_update_thread_id = value;
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}
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static void start_passthru_update(void)
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{
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set_passthru_update(PASSTHRU_UPDATE_THREAD_ID);
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}
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static void end_passthru_update(void)
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{
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set_passthru_update(0);
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}
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/*!
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* \internal
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* \brief Hashing function for the container holding caches
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*
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* \param obj A sorcery memory cache or name of one
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* \param flags Hashing flags
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*
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* \return The hash of the memory cache name
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*/
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static int sorcery_memory_cache_hash(const void *obj, int flags)
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{
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const struct sorcery_memory_cache *cache = obj;
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const char *name = obj;
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int hash;
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switch (flags & OBJ_SEARCH_MASK) {
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default:
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case OBJ_SEARCH_OBJECT:
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name = cache->name;
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/* Fall through */
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case OBJ_SEARCH_KEY:
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hash = ast_str_hash(name);
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break;
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case OBJ_SEARCH_PARTIAL_KEY:
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/* Should never happen in hash callback. */
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ast_assert(0);
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hash = 0;
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break;
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}
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return hash;
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}
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/*!
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* \internal
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* \brief Comparison function for the container holding caches
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*
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* \param obj A sorcery memory cache
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* \param arg A sorcery memory cache, or name of one
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* \param flags Comparison flags
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*
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* \retval CMP_MATCH if the name is the same
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* \retval 0 if the name does not match
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*/
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static int sorcery_memory_cache_cmp(void *obj, void *arg, int flags)
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{
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const struct sorcery_memory_cache *left = obj;
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const struct sorcery_memory_cache *right = arg;
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const char *right_name = arg;
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int cmp;
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switch (flags & OBJ_SEARCH_MASK) {
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default:
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case OBJ_SEARCH_OBJECT:
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right_name = right->name;
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/* Fall through */
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case OBJ_SEARCH_KEY:
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cmp = strcmp(left->name, right_name);
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break;
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case OBJ_SEARCH_PARTIAL_KEY:
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cmp = strncmp(left->name, right_name, strlen(right_name));
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break;
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}
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return cmp ? 0 : CMP_MATCH;
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}
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/*!
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* \internal
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* \brief Hashing function for the container holding cached objects
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*
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* \param obj A cached object or id of one
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* \param flags Hashing flags
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*
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* \return The hash of the cached object id
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*/
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static int sorcery_memory_cached_object_hash(const void *obj, int flags)
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{
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const struct sorcery_memory_cached_object *cached = obj;
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const char *name = obj;
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int hash;
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switch (flags & OBJ_SEARCH_MASK) {
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default:
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case OBJ_SEARCH_OBJECT:
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name = ast_sorcery_object_get_id(cached->object);
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/* Fall through */
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case OBJ_SEARCH_KEY:
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hash = ast_str_hash(name);
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break;
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case OBJ_SEARCH_PARTIAL_KEY:
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/* Should never happen in hash callback. */
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ast_assert(0);
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hash = 0;
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break;
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}
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return hash;
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}
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/*!
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* \internal
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* \brief Comparison function for the container holding cached objects
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*
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* \param obj A cached object
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* \param arg A cached object, or id of one
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* \param flags Comparison flags
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*
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* \retval CMP_MATCH if the id is the same
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* \retval 0 if the id does not match
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*/
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static int sorcery_memory_cached_object_cmp(void *obj, void *arg, int flags)
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{
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struct sorcery_memory_cached_object *left = obj;
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struct sorcery_memory_cached_object *right = arg;
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const char *right_name = arg;
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int cmp;
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switch (flags & OBJ_SEARCH_MASK) {
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default:
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case OBJ_SEARCH_OBJECT:
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right_name = ast_sorcery_object_get_id(right->object);
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/* Fall through */
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case OBJ_SEARCH_KEY:
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cmp = strcmp(ast_sorcery_object_get_id(left->object), right_name);
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break;
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case OBJ_SEARCH_PARTIAL_KEY:
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cmp = strncmp(ast_sorcery_object_get_id(left->object), right_name, strlen(right_name));
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break;
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}
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return cmp ? 0 : CMP_MATCH;
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}
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/*!
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* \internal
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* \brief Destructor function for a sorcery memory cache
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*
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* \param obj A sorcery memory cache
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*/
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static void sorcery_memory_cache_destructor(void *obj)
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{
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struct sorcery_memory_cache *cache = obj;
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ast_free(cache->name);
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if (cache->object_heap) {
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ast_heap_destroy(cache->object_heap);
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}
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ao2_cleanup(cache->objects);
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ast_free(cache->object_type);
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}
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/*!
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* \internal
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* \brief Destructor function for sorcery memory cached objects
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*
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* \param obj A sorcery memory cached object
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*/
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static void sorcery_memory_cached_object_destructor(void *obj)
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{
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struct sorcery_memory_cached_object *cached = obj;
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ao2_cleanup(cached->object);
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ast_variables_destroy(cached->objectset);
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}
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static int schedule_cache_expiration(struct sorcery_memory_cache *cache);
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/*!
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* \internal
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* \brief Remove an object from the cache.
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*
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* This removes the item from both the hashtable and the heap.
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*
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* \pre cache->objects is write-locked
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*
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* \param cache The cache from which the object is being removed.
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* \param id The sorcery object id of the object to remove.
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* \param reschedule Reschedule cache expiration if this was the oldest object.
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*
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* \retval 0 Success
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* \retval non-zero Failure
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*/
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static int remove_from_cache(struct sorcery_memory_cache *cache, const char *id, int reschedule)
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{
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struct sorcery_memory_cached_object *hash_object;
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struct sorcery_memory_cached_object *oldest_object;
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struct sorcery_memory_cached_object *heap_object;
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hash_object = ao2_find(cache->objects, id, OBJ_SEARCH_KEY | OBJ_UNLINK | OBJ_NOLOCK);
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if (!hash_object) {
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return -1;
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}
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ast_assert(!strcmp(ast_sorcery_object_get_id(hash_object->object), id));
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oldest_object = ast_heap_peek(cache->object_heap, 1);
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heap_object = ast_heap_remove(cache->object_heap, hash_object);
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ast_assert(heap_object == hash_object);
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ao2_ref(hash_object, -1);
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if (reschedule && (oldest_object == heap_object)) {
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schedule_cache_expiration(cache);
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}
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return 0;
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}
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/*!
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* \internal
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* \brief Scheduler callback invoked to expire old objects
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*
|
|
* \param data The opaque callback data (in our case, the memory cache)
|
|
*/
|
|
static int expire_objects_from_cache(const void *data)
|
|
{
|
|
struct sorcery_memory_cache *cache = (struct sorcery_memory_cache *)data;
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
/*
|
|
* We need to do deadlock avoidance between a non-scheduler thread
|
|
* blocking when trying to delete the scheduled entry for this
|
|
* callback because the scheduler thread is running this callback
|
|
* and this callback waiting for the cache->objects container lock
|
|
* that the blocked non-scheduler thread already holds.
|
|
*/
|
|
while (ao2_trywrlock(cache->objects)) {
|
|
if (cache->del_expire) {
|
|
cache->expire_id = -1;
|
|
ao2_ref(cache, -1);
|
|
return 0;
|
|
}
|
|
sched_yield();
|
|
}
|
|
|
|
cache->expire_id = -1;
|
|
|
|
/* This is an optimization for objects which have been cached close to each other */
|
|
while ((cached = ast_heap_peek(cache->object_heap, 1))) {
|
|
int expiration;
|
|
|
|
expiration = ast_tvdiff_ms(ast_tvadd(cached->created, ast_samp2tv(cache->object_lifetime_maximum, 1)), ast_tvnow());
|
|
|
|
/* If the current oldest object has not yet expired stop and reschedule for it */
|
|
if (expiration > 0) {
|
|
break;
|
|
}
|
|
|
|
remove_from_cache(cache, ast_sorcery_object_get_id(cached->object), 0);
|
|
}
|
|
|
|
schedule_cache_expiration(cache);
|
|
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Remove all objects from the cache.
|
|
*
|
|
* This removes ALL objects from both the hash table and heap.
|
|
*
|
|
* \pre cache->objects is write-locked
|
|
*
|
|
* \param cache The cache to empty.
|
|
*/
|
|
static void remove_all_from_cache(struct sorcery_memory_cache *cache)
|
|
{
|
|
while (ast_heap_pop(cache->object_heap)) {
|
|
}
|
|
|
|
ao2_callback(cache->objects, OBJ_UNLINK | OBJ_NOLOCK | OBJ_NODATA | OBJ_MULTIPLE,
|
|
NULL, NULL);
|
|
|
|
cache->del_expire = 1;
|
|
AST_SCHED_DEL_UNREF(sched, cache->expire_id, ao2_ref(cache, -1));
|
|
cache->del_expire = 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AO2 callback function for making an object stale immediately
|
|
*
|
|
* This changes the creation time of an object so it appears as though it is stale immediately.
|
|
*
|
|
* \param obj The cached object
|
|
* \param arg The cache itself
|
|
* \param flags Unused flags
|
|
*/
|
|
static int object_stale_callback(void *obj, void *arg, int flags)
|
|
{
|
|
struct sorcery_memory_cached_object *cached = obj;
|
|
struct sorcery_memory_cache *cache = arg;
|
|
|
|
/* Since our granularity is seconds it's possible for something to retrieve us within a window
|
|
* where we wouldn't be treated as stale. To ensure that doesn't happen we use the configured stale
|
|
* time plus a second.
|
|
*/
|
|
cached->created = ast_tvsub(cached->created, ast_samp2tv(cache->object_lifetime_stale + 1, 1));
|
|
|
|
return CMP_MATCH;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Mark an object as stale explicitly.
|
|
*
|
|
* This changes the creation time of an object so it appears as though it is stale immediately.
|
|
*
|
|
* \pre cache->objects is read-locked
|
|
*
|
|
* \param cache The cache the object is in
|
|
* \param id The unique identifier of the object
|
|
*
|
|
* \retval 0 success
|
|
* \retval -1 failure
|
|
*/
|
|
static int mark_object_as_stale_in_cache(struct sorcery_memory_cache *cache, const char *id)
|
|
{
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
cached = ao2_find(cache->objects, id, OBJ_SEARCH_KEY | OBJ_NOLOCK);
|
|
if (!cached) {
|
|
return -1;
|
|
}
|
|
|
|
ast_assert(!strcmp(ast_sorcery_object_get_id(cached->object), id));
|
|
|
|
object_stale_callback(cached, cache, 0);
|
|
ao2_ref(cached, -1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Mark all objects as stale within a cache.
|
|
*
|
|
* This changes the creation time of ALL objects so they appear as though they are stale.
|
|
*
|
|
* \pre cache->objects is read-locked
|
|
*
|
|
* \param cache
|
|
*/
|
|
static void mark_all_as_stale_in_cache(struct sorcery_memory_cache *cache)
|
|
{
|
|
ao2_callback(cache->objects, OBJ_NOLOCK | OBJ_NODATA | OBJ_MULTIPLE, object_stale_callback, cache);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Schedule a callback for cached object expiration.
|
|
*
|
|
* \pre cache->objects is write-locked
|
|
*
|
|
* \param cache The cache that is having its callback scheduled.
|
|
*
|
|
* \retval 0 success
|
|
* \retval -1 failure
|
|
*/
|
|
static int schedule_cache_expiration(struct sorcery_memory_cache *cache)
|
|
{
|
|
struct sorcery_memory_cached_object *cached;
|
|
int expiration = 0;
|
|
|
|
if (!cache->object_lifetime_maximum) {
|
|
return 0;
|
|
}
|
|
|
|
cache->del_expire = 1;
|
|
AST_SCHED_DEL_UNREF(sched, cache->expire_id, ao2_ref(cache, -1));
|
|
cache->del_expire = 0;
|
|
|
|
cached = ast_heap_peek(cache->object_heap, 1);
|
|
if (!cached) {
|
|
#ifdef TEST_FRAMEWORK
|
|
ast_mutex_lock(&cache->lock);
|
|
cache->cache_completed = 1;
|
|
ast_cond_signal(&cache->cond);
|
|
ast_mutex_unlock(&cache->lock);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
expiration = MAX(ast_tvdiff_ms(ast_tvadd(cached->created, ast_samp2tv(cache->object_lifetime_maximum, 1)), ast_tvnow()),
|
|
1);
|
|
|
|
cache->expire_id = ast_sched_add(sched, expiration, expire_objects_from_cache, ao2_bump(cache));
|
|
if (cache->expire_id < 0) {
|
|
ao2_ref(cache, -1);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Remove the oldest item from the cache.
|
|
*
|
|
* \pre cache->objects is write-locked
|
|
*
|
|
* \param cache The cache from which to remove the oldest object
|
|
*
|
|
* \retval 0 Success
|
|
* \retval non-zero Failure
|
|
*/
|
|
static int remove_oldest_from_cache(struct sorcery_memory_cache *cache)
|
|
{
|
|
struct sorcery_memory_cached_object *heap_old_object;
|
|
struct sorcery_memory_cached_object *hash_old_object;
|
|
|
|
heap_old_object = ast_heap_pop(cache->object_heap);
|
|
if (!heap_old_object) {
|
|
return -1;
|
|
}
|
|
hash_old_object = ao2_find(cache->objects, heap_old_object,
|
|
OBJ_SEARCH_OBJECT | OBJ_UNLINK | OBJ_NOLOCK);
|
|
|
|
ast_assert(heap_old_object == hash_old_object);
|
|
|
|
ao2_ref(hash_old_object, -1);
|
|
|
|
schedule_cache_expiration(cache);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Add a new object to the cache.
|
|
*
|
|
* \pre cache->objects is write-locked
|
|
*
|
|
* \param cache The cache in which to add the new object
|
|
* \param cached_object The object to add to the cache
|
|
*
|
|
* \retval 0 Success
|
|
* \retval non-zero Failure
|
|
*/
|
|
static int add_to_cache(struct sorcery_memory_cache *cache,
|
|
struct sorcery_memory_cached_object *cached_object)
|
|
{
|
|
struct sorcery_memory_cached_object *front;
|
|
|
|
if (!ao2_link_flags(cache->objects, cached_object, OBJ_NOLOCK)) {
|
|
return -1;
|
|
}
|
|
|
|
if (cache->full_backend_cache && (front = ast_heap_peek(cache->object_heap, 1))) {
|
|
/* For a full backend cache all objects share the same lifetime */
|
|
cached_object->created = front->created;
|
|
}
|
|
|
|
if (ast_heap_push(cache->object_heap, cached_object)) {
|
|
ao2_find(cache->objects, cached_object,
|
|
OBJ_SEARCH_OBJECT | OBJ_UNLINK | OBJ_NODATA | OBJ_NOLOCK);
|
|
return -1;
|
|
}
|
|
|
|
if (cache->expire_id == -1) {
|
|
schedule_cache_expiration(cache);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Allocate a cached object for caching an object
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param cache The sorcery memory cache
|
|
* \param object The object to cache
|
|
*
|
|
* \retval non-NULL success
|
|
* \retval NULL failure
|
|
*/
|
|
static struct sorcery_memory_cached_object *sorcery_memory_cached_object_alloc(const struct ast_sorcery *sorcery,
|
|
const struct sorcery_memory_cache *cache, void *object)
|
|
{
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
cached = ao2_alloc(sizeof(*cached), sorcery_memory_cached_object_destructor);
|
|
if (!cached) {
|
|
return NULL;
|
|
}
|
|
|
|
cached->object = ao2_bump(object);
|
|
cached->created = ast_tvnow();
|
|
cached->stale_update_sched_id = -1;
|
|
|
|
if (cache->full_backend_cache) {
|
|
/* A cached objectset allows us to easily perform all retrieval operations in a
|
|
* minimal of time.
|
|
*/
|
|
cached->objectset = ast_sorcery_objectset_create(sorcery, object);
|
|
if (!cached->objectset) {
|
|
ao2_ref(cached, -1);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return cached;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to cache an object in a memory cache
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data The sorcery memory cache
|
|
* \param object The object to cache
|
|
*
|
|
* \retval 0 success
|
|
* \retval -1 failure
|
|
*/
|
|
static int sorcery_memory_cache_create(const struct ast_sorcery *sorcery, void *data, void *object)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
cached = sorcery_memory_cached_object_alloc(sorcery, cache, object);
|
|
if (!cached) {
|
|
return -1;
|
|
}
|
|
|
|
/* As there is no guarantee that this won't be called by multiple threads wanting to cache
|
|
* the same object we remove any old ones, which turns this into a create/update function
|
|
* in reality. As well since there's no guarantee that the object in the cache is the same
|
|
* one here we remove any old objects using the object identifier.
|
|
*/
|
|
|
|
ao2_wrlock(cache->objects);
|
|
remove_from_cache(cache, ast_sorcery_object_get_id(object), 1);
|
|
if (cache->maximum_objects && ao2_container_count(cache->objects) >= cache->maximum_objects) {
|
|
if (remove_oldest_from_cache(cache)) {
|
|
ast_log(LOG_ERROR, "Unable to make room in cache for sorcery object '%s'.\n",
|
|
ast_sorcery_object_get_id(object));
|
|
ao2_unlock(cache->objects);
|
|
ao2_ref(cached, -1);
|
|
return -1;
|
|
}
|
|
ast_assert(ao2_container_count(cache->objects) != cache->maximum_objects);
|
|
}
|
|
if (add_to_cache(cache, cached)) {
|
|
ast_log(LOG_ERROR, "Unable to add object '%s' to the cache\n",
|
|
ast_sorcery_object_get_id(object));
|
|
ao2_unlock(cache->objects);
|
|
ao2_ref(cached, -1);
|
|
return -1;
|
|
}
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cached, -1);
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AO2 callback function for adding an object to a memory cache
|
|
*
|
|
* \param obj The cached object
|
|
* \param arg The sorcery instance
|
|
* \param data The cache itself
|
|
* \param flags Unused flags
|
|
*/
|
|
static int object_add_to_cache_callback(void *obj, void *arg, void *data, int flags)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
cached = sorcery_memory_cached_object_alloc(arg, cache, obj);
|
|
if (!cached) {
|
|
return CMP_STOP;
|
|
}
|
|
|
|
add_to_cache(cache, cached);
|
|
ao2_ref(cached, -1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct stale_cache_update_task_data {
|
|
struct ast_sorcery *sorcery;
|
|
struct sorcery_memory_cache *cache;
|
|
char *type;
|
|
};
|
|
|
|
static void stale_cache_update_task_data_destructor(void *obj)
|
|
{
|
|
struct stale_cache_update_task_data *task_data = obj;
|
|
|
|
ao2_cleanup(task_data->cache);
|
|
ast_sorcery_unref(task_data->sorcery);
|
|
ast_free(task_data->type);
|
|
}
|
|
|
|
static struct stale_cache_update_task_data *stale_cache_update_task_data_alloc(struct ast_sorcery *sorcery,
|
|
struct sorcery_memory_cache *cache, const char *type)
|
|
{
|
|
struct stale_cache_update_task_data *task_data;
|
|
|
|
task_data = ao2_alloc_options(sizeof(*task_data), stale_cache_update_task_data_destructor,
|
|
AO2_ALLOC_OPT_LOCK_NOLOCK);
|
|
if (!task_data) {
|
|
return NULL;
|
|
}
|
|
|
|
task_data->sorcery = ao2_bump(sorcery);
|
|
task_data->cache = ao2_bump(cache);
|
|
task_data->type = ast_strdup(type);
|
|
if (!task_data->type) {
|
|
ao2_ref(task_data, -1);
|
|
return NULL;
|
|
}
|
|
|
|
return task_data;
|
|
}
|
|
|
|
static int stale_cache_update(const void *data)
|
|
{
|
|
struct stale_cache_update_task_data *task_data = (struct stale_cache_update_task_data *) data;
|
|
struct ao2_container *backend_objects;
|
|
|
|
start_passthru_update();
|
|
backend_objects = ast_sorcery_retrieve_by_fields(task_data->sorcery, task_data->type,
|
|
AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
end_passthru_update();
|
|
|
|
if (!backend_objects) {
|
|
task_data->cache->stale_update_sched_id = -1;
|
|
ao2_ref(task_data, -1);
|
|
return 0;
|
|
}
|
|
|
|
if (task_data->cache->maximum_objects && ao2_container_count(backend_objects) >= task_data->cache->maximum_objects) {
|
|
ast_log(LOG_ERROR, "The backend contains %d objects while the sorcery memory cache '%s' is explicitly configured to only allow %d\n",
|
|
ao2_container_count(backend_objects), task_data->cache->name, task_data->cache->maximum_objects);
|
|
task_data->cache->stale_update_sched_id = -1;
|
|
ao2_ref(task_data, -1);
|
|
return 0;
|
|
}
|
|
|
|
ao2_wrlock(task_data->cache->objects);
|
|
remove_all_from_cache(task_data->cache);
|
|
ao2_callback_data(backend_objects, OBJ_NOLOCK | OBJ_NODATA | OBJ_MULTIPLE, object_add_to_cache_callback,
|
|
task_data->sorcery, task_data->cache);
|
|
|
|
/* If the number of cached objects does not match the number of backend objects we encountered a memory allocation
|
|
* failure and the cache is incomplete, so drop everything and fall back to querying the backend directly
|
|
* as it may be able to provide what is wanted.
|
|
*/
|
|
if (ao2_container_count(task_data->cache->objects) != ao2_container_count(backend_objects)) {
|
|
ast_log(LOG_WARNING, "The backend contains %d objects while only %d could be added to sorcery memory cache '%s'\n",
|
|
ao2_container_count(backend_objects), ao2_container_count(task_data->cache->objects), task_data->cache->name);
|
|
remove_all_from_cache(task_data->cache);
|
|
}
|
|
|
|
ao2_unlock(task_data->cache->objects);
|
|
ao2_ref(backend_objects, -1);
|
|
|
|
task_data->cache->stale_update_sched_id = -1;
|
|
ao2_ref(task_data, -1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct stale_update_task_data {
|
|
struct ast_sorcery *sorcery;
|
|
struct sorcery_memory_cache *cache;
|
|
void *object;
|
|
};
|
|
|
|
static void stale_update_task_data_destructor(void *obj)
|
|
{
|
|
struct stale_update_task_data *task_data = obj;
|
|
|
|
ao2_cleanup(task_data->cache);
|
|
ao2_cleanup(task_data->object);
|
|
ast_sorcery_unref(task_data->sorcery);
|
|
}
|
|
|
|
static struct stale_update_task_data *stale_update_task_data_alloc(struct ast_sorcery *sorcery,
|
|
struct sorcery_memory_cache *cache, const char *type, void *object)
|
|
{
|
|
struct stale_update_task_data *task_data;
|
|
|
|
task_data = ao2_alloc_options(sizeof(*task_data), stale_update_task_data_destructor,
|
|
AO2_ALLOC_OPT_LOCK_NOLOCK);
|
|
if (!task_data) {
|
|
return NULL;
|
|
}
|
|
|
|
task_data->sorcery = ao2_bump(sorcery);
|
|
task_data->cache = ao2_bump(cache);
|
|
task_data->object = ao2_bump(object);
|
|
|
|
return task_data;
|
|
}
|
|
|
|
static int stale_item_update(const void *data)
|
|
{
|
|
struct stale_update_task_data *task_data = (struct stale_update_task_data *) data;
|
|
void *object;
|
|
|
|
start_passthru_update();
|
|
|
|
object = ast_sorcery_retrieve_by_id(task_data->sorcery,
|
|
ast_sorcery_object_get_type(task_data->object),
|
|
ast_sorcery_object_get_id(task_data->object));
|
|
if (!object) {
|
|
ast_debug(1, "Backend no longer has object type '%s' ID '%s'. Removing from cache\n",
|
|
ast_sorcery_object_get_type(task_data->object),
|
|
ast_sorcery_object_get_id(task_data->object));
|
|
sorcery_memory_cache_delete(task_data->sorcery, task_data->cache,
|
|
task_data->object);
|
|
} else {
|
|
ast_debug(1, "Refreshing stale cache object type '%s' ID '%s'\n",
|
|
ast_sorcery_object_get_type(task_data->object),
|
|
ast_sorcery_object_get_id(task_data->object));
|
|
sorcery_memory_cache_create(task_data->sorcery, task_data->cache,
|
|
object);
|
|
ao2_ref(object, -1);
|
|
}
|
|
|
|
ast_test_suite_event_notify("SORCERY_MEMORY_CACHE_REFRESHED", "Cache: %s\r\nType: %s\r\nName: %s\r\n",
|
|
task_data->cache->name, ast_sorcery_object_get_type(task_data->object),
|
|
ast_sorcery_object_get_id(task_data->object));
|
|
|
|
ao2_ref(task_data, -1);
|
|
end_passthru_update();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Populate the cache with all objects from the backend
|
|
*
|
|
* \pre cache->objects is write-locked
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param type The type of object
|
|
* \param cache The sorcery memory cache
|
|
*/
|
|
static void memory_cache_populate(const struct ast_sorcery *sorcery, const char *type, struct sorcery_memory_cache *cache)
|
|
{
|
|
struct ao2_container *backend_objects;
|
|
|
|
start_passthru_update();
|
|
backend_objects = ast_sorcery_retrieve_by_fields(sorcery, type, AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
end_passthru_update();
|
|
|
|
if (!backend_objects) {
|
|
/* This will occur in off-nominal memory allocation failure scenarios */
|
|
return;
|
|
}
|
|
|
|
if (cache->maximum_objects && ao2_container_count(backend_objects) >= cache->maximum_objects) {
|
|
ast_log(LOG_ERROR, "The backend contains %d objects while the sorcery memory cache '%s' is explicitly configured to only allow %d\n",
|
|
ao2_container_count(backend_objects), cache->name, cache->maximum_objects);
|
|
return;
|
|
}
|
|
|
|
ao2_callback_data(backend_objects, OBJ_NOLOCK | OBJ_NODATA | OBJ_MULTIPLE, object_add_to_cache_callback,
|
|
(struct ast_sorcery*)sorcery, cache);
|
|
|
|
/* If the number of cached objects does not match the number of backend objects we encountered a memory allocation
|
|
* failure and the cache is incomplete, so drop everything and fall back to querying the backend directly
|
|
* as it may be able to provide what is wanted.
|
|
*/
|
|
if (ao2_container_count(cache->objects) != ao2_container_count(backend_objects)) {
|
|
ast_log(LOG_WARNING, "The backend contains %d objects while only %d could be added to sorcery memory cache '%s'\n",
|
|
ao2_container_count(backend_objects), ao2_container_count(cache->objects), cache->name);
|
|
remove_all_from_cache(cache);
|
|
}
|
|
|
|
ao2_ref(backend_objects, -1);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Determine if a full backend cache update is needed and do it
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param type The type of object
|
|
* \param cache The sorcery memory cache
|
|
*/
|
|
static void memory_cache_full_update(const struct ast_sorcery *sorcery, const char *type, struct sorcery_memory_cache *cache)
|
|
{
|
|
if (!cache->full_backend_cache) {
|
|
return;
|
|
}
|
|
|
|
ao2_wrlock(cache->objects);
|
|
if (!ao2_container_count(cache->objects)) {
|
|
memory_cache_populate(sorcery, type, cache);
|
|
}
|
|
ao2_unlock(cache->objects);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Queue a full cache update
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param cache The sorcery memory cache
|
|
* \param type The type of object
|
|
*/
|
|
static void memory_cache_stale_update_full(const struct ast_sorcery *sorcery, struct sorcery_memory_cache *cache,
|
|
const char *type)
|
|
{
|
|
ao2_wrlock(cache->objects);
|
|
if (cache->stale_update_sched_id == -1) {
|
|
struct stale_cache_update_task_data *task_data;
|
|
|
|
task_data = stale_cache_update_task_data_alloc((struct ast_sorcery *) sorcery,
|
|
cache, type);
|
|
if (task_data) {
|
|
cache->stale_update_sched_id = ast_sched_add(sched, 1,
|
|
stale_cache_update, task_data);
|
|
}
|
|
if (cache->stale_update_sched_id < 0) {
|
|
ao2_cleanup(task_data);
|
|
}
|
|
}
|
|
ao2_unlock(cache->objects);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Queue a stale object update
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param cache The sorcery memory cache
|
|
* \param cached The cached object
|
|
*/
|
|
static void memory_cache_stale_update_object(const struct ast_sorcery *sorcery, struct sorcery_memory_cache *cache,
|
|
struct sorcery_memory_cached_object *cached)
|
|
{
|
|
ao2_lock(cached);
|
|
if (cached->stale_update_sched_id == -1) {
|
|
struct stale_update_task_data *task_data;
|
|
|
|
task_data = stale_update_task_data_alloc((struct ast_sorcery *) sorcery,
|
|
cache, ast_sorcery_object_get_type(cached->object), cached->object);
|
|
if (task_data) {
|
|
ast_debug(1, "Cached sorcery object type '%s' ID '%s' is stale. Refreshing\n",
|
|
ast_sorcery_object_get_type(cached->object), ast_sorcery_object_get_id(cached->object));
|
|
cached->stale_update_sched_id = ast_sched_add(sched, 1,
|
|
stale_item_update, task_data);
|
|
}
|
|
if (cached->stale_update_sched_id < 0) {
|
|
ao2_cleanup(task_data);
|
|
ast_log(LOG_ERROR, "Unable to update stale cached object type '%s', ID '%s'.\n",
|
|
ast_sorcery_object_get_type(cached->object), ast_sorcery_object_get_id(cached->object));
|
|
}
|
|
}
|
|
ao2_unlock(cached);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Check whether an object (or cache) is stale and queue an update
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param cache The sorcery memory cache
|
|
* \param cached The cached object
|
|
*/
|
|
static void memory_cache_stale_check_object(const struct ast_sorcery *sorcery, struct sorcery_memory_cache *cache,
|
|
struct sorcery_memory_cached_object *cached)
|
|
{
|
|
struct timeval elapsed;
|
|
|
|
if (!cache->object_lifetime_stale) {
|
|
return;
|
|
}
|
|
|
|
/* For a full cache as every object has the same expiration/staleness we can do the same check */
|
|
elapsed = ast_tvsub(ast_tvnow(), cached->created);
|
|
|
|
if (elapsed.tv_sec < cache->object_lifetime_stale) {
|
|
return;
|
|
}
|
|
|
|
if (cache->full_backend_cache) {
|
|
memory_cache_stale_update_full(sorcery, cache, ast_sorcery_object_get_type(cached->object));
|
|
} else {
|
|
memory_cache_stale_update_object(sorcery, cache, cached);
|
|
}
|
|
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Check whether the entire cache is stale or not and queue an update
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param cache The sorcery memory cache
|
|
*
|
|
* \note Unlike \ref memory_cache_stale_check this does not require an explicit object
|
|
*/
|
|
static void memory_cache_stale_check(const struct ast_sorcery *sorcery, struct sorcery_memory_cache *cache)
|
|
{
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
ao2_rdlock(cache->objects);
|
|
cached = ao2_bump(ast_heap_peek(cache->object_heap, 1));
|
|
ao2_unlock(cache->objects);
|
|
|
|
if (!cached) {
|
|
return;
|
|
}
|
|
|
|
memory_cache_stale_check_object(sorcery, cache, cached);
|
|
ao2_ref(cached, -1);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to retrieve an object from a memory cache
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data The sorcery memory cache
|
|
* \param type The type of the object to retrieve
|
|
* \param id The id of the object to retrieve
|
|
*
|
|
* \retval non-NULL success
|
|
* \retval NULL failure
|
|
*/
|
|
static void *sorcery_memory_cache_retrieve_id(const struct ast_sorcery *sorcery, void *data, const char *type, const char *id)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
struct sorcery_memory_cached_object *cached;
|
|
void *object;
|
|
|
|
if (is_passthru_update()) {
|
|
return NULL;
|
|
}
|
|
|
|
memory_cache_full_update(sorcery, type, cache);
|
|
|
|
cached = ao2_find(cache->objects, id, OBJ_SEARCH_KEY);
|
|
if (!cached) {
|
|
return NULL;
|
|
}
|
|
|
|
ast_assert(!strcmp(ast_sorcery_object_get_id(cached->object), id));
|
|
|
|
memory_cache_stale_check_object(sorcery, cache, cached);
|
|
|
|
object = ao2_bump(cached->object);
|
|
ao2_ref(cached, -1);
|
|
|
|
return object;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AO2 callback function for comparing a retrieval request and finding applicable objects
|
|
*
|
|
* \param obj The cached object
|
|
* \param arg The comparison parameters
|
|
* \param flags Unused flags
|
|
*/
|
|
static int sorcery_memory_cache_fields_cmp(void *obj, void *arg, int flags)
|
|
{
|
|
struct sorcery_memory_cached_object *cached = obj;
|
|
const struct sorcery_memory_cache_fields_cmp_params *params = arg;
|
|
RAII_VAR(struct ast_variable *, diff, NULL, ast_variables_destroy);
|
|
|
|
if (params->regex) {
|
|
/* If a regular expression has been provided see if it matches, otherwise move on */
|
|
if (!regexec(params->regex, ast_sorcery_object_get_id(cached->object), 0, NULL, 0)) {
|
|
ao2_link(params->container, cached->object);
|
|
}
|
|
return 0;
|
|
} else if (params->prefix) {
|
|
if (!strncmp(params->prefix, ast_sorcery_object_get_id(cached->object), params->prefix_len)) {
|
|
ao2_link(params->container, cached->object);
|
|
}
|
|
return 0;
|
|
} else if (params->fields &&
|
|
(!ast_variable_lists_match(cached->objectset, params->fields, 0))) {
|
|
/* If we can't turn the object into an object set OR if differences exist between the fields
|
|
* passed in and what are present on the object they are not a match.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
if (params->container) {
|
|
ao2_link(params->container, cached->object);
|
|
|
|
/* As multiple objects are being returned keep going */
|
|
return 0;
|
|
} else {
|
|
/* Immediately stop and return, we only want a single object */
|
|
return CMP_MATCH | CMP_STOP;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to retrieve a single object based on fields
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data The sorcery memory cache
|
|
* \param type The type of the object to retrieve
|
|
* \param fields Any explicit fields to search for
|
|
*/
|
|
static void *sorcery_memory_cache_retrieve_fields(const struct ast_sorcery *sorcery, void *data, const char *type,
|
|
const struct ast_variable *fields)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
struct sorcery_memory_cache_fields_cmp_params params = {
|
|
.sorcery = sorcery,
|
|
.cache = cache,
|
|
.fields = fields,
|
|
};
|
|
struct sorcery_memory_cached_object *cached;
|
|
void *object = NULL;
|
|
|
|
if (is_passthru_update() || !cache->full_backend_cache || !fields) {
|
|
return NULL;
|
|
}
|
|
|
|
cached = ao2_callback(cache->objects, 0, sorcery_memory_cache_fields_cmp, ¶ms);
|
|
|
|
if (cached) {
|
|
memory_cache_stale_check_object(sorcery, cache, cached);
|
|
object = ao2_bump(cached->object);
|
|
ao2_ref(cached, -1);
|
|
}
|
|
|
|
return object;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to retrieve multiple objects from a memory cache
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data The sorcery memory cache
|
|
* \param type The type of the object to retrieve
|
|
* \param objects Container to place the objects into
|
|
* \param fields Any explicit fields to search for
|
|
*/
|
|
static void sorcery_memory_cache_retrieve_multiple(const struct ast_sorcery *sorcery, void *data, const char *type,
|
|
struct ao2_container *objects, const struct ast_variable *fields)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
struct sorcery_memory_cache_fields_cmp_params params = {
|
|
.sorcery = sorcery,
|
|
.cache = cache,
|
|
.fields = fields,
|
|
.container = objects,
|
|
};
|
|
|
|
if (is_passthru_update() || !cache->full_backend_cache) {
|
|
return;
|
|
}
|
|
|
|
memory_cache_full_update(sorcery, type, cache);
|
|
ao2_callback(cache->objects, 0, sorcery_memory_cache_fields_cmp, ¶ms);
|
|
|
|
if (ao2_container_count(objects)) {
|
|
memory_cache_stale_check(sorcery, cache);
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to retrieve multiple objects using a regex on the object id
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data The sorcery memory cache
|
|
* \param type The type of the object to retrieve
|
|
* \param objects Container to place the objects into
|
|
* \param regex Regular expression to apply to the object id
|
|
*/
|
|
static void sorcery_memory_cache_retrieve_regex(const struct ast_sorcery *sorcery, void *data, const char *type,
|
|
struct ao2_container *objects, const char *regex)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
regex_t expression;
|
|
struct sorcery_memory_cache_fields_cmp_params params = {
|
|
.sorcery = sorcery,
|
|
.cache = cache,
|
|
.container = objects,
|
|
.regex = &expression,
|
|
};
|
|
|
|
if (is_passthru_update() || !cache->full_backend_cache || regcomp(&expression, regex, REG_EXTENDED | REG_NOSUB)) {
|
|
return;
|
|
}
|
|
|
|
memory_cache_full_update(sorcery, type, cache);
|
|
ao2_callback(cache->objects, 0, sorcery_memory_cache_fields_cmp, ¶ms);
|
|
regfree(&expression);
|
|
|
|
if (ao2_container_count(objects)) {
|
|
memory_cache_stale_check(sorcery, cache);
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to retrieve multiple objects whose id matches a prefix
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data The sorcery memory cache
|
|
* \param type The type of the object to retrieve
|
|
* \param objects Container to place the objects into
|
|
* \param prefix, prefix_len Prefix to match against the object id
|
|
*/
|
|
static void sorcery_memory_cache_retrieve_prefix(const struct ast_sorcery *sorcery, void *data, const char *type,
|
|
struct ao2_container *objects, const char *prefix, const size_t prefix_len)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
struct sorcery_memory_cache_fields_cmp_params params = {
|
|
.sorcery = sorcery,
|
|
.cache = cache,
|
|
.container = objects,
|
|
.prefix = prefix,
|
|
.prefix_len = prefix_len,
|
|
};
|
|
|
|
if (is_passthru_update() || !cache->full_backend_cache) {
|
|
return;
|
|
}
|
|
|
|
memory_cache_full_update(sorcery, type, cache);
|
|
ao2_callback(cache->objects, 0, sorcery_memory_cache_fields_cmp, ¶ms);
|
|
|
|
if (ao2_container_count(objects)) {
|
|
memory_cache_stale_check(sorcery, cache);
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to finish configuring the memory cache
|
|
*
|
|
* \param data The sorcery memory cache
|
|
* \param sorcery The sorcery instance
|
|
* \param type The type of object being loaded
|
|
*/
|
|
static void sorcery_memory_cache_load(void *data, const struct ast_sorcery *sorcery, const char *type)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
|
|
/* If no name was explicitly specified generate one given the sorcery instance and object type */
|
|
if (ast_strlen_zero(cache->name)) {
|
|
ast_asprintf(&cache->name, "%s/%s", ast_sorcery_get_module(sorcery), type);
|
|
}
|
|
|
|
ao2_link(caches, cache);
|
|
ast_debug(1, "Memory cache '%s' associated with sorcery instance '%p' of module '%s' with object type '%s'\n",
|
|
cache->name, sorcery, ast_sorcery_get_module(sorcery), type);
|
|
|
|
cache->sorcery = sorcery;
|
|
cache->object_type = ast_strdup(type);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to expire objects from the memory cache on reload (if configured)
|
|
*
|
|
* \param data The sorcery memory cache
|
|
* \param sorcery The sorcery instance
|
|
* \param type The type of object being reloaded
|
|
*/
|
|
static void sorcery_memory_cache_reload(void *data, const struct ast_sorcery *sorcery, const char *type)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
|
|
if (!cache->expire_on_reload) {
|
|
return;
|
|
}
|
|
|
|
ao2_wrlock(cache->objects);
|
|
remove_all_from_cache(cache);
|
|
ao2_unlock(cache->objects);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Function used to take an unsigned integer based configuration option and parse it
|
|
*
|
|
* \param value The string value of the configuration option
|
|
* \param result The unsigned integer to place the result in
|
|
*
|
|
* \retval 0 failure
|
|
* \retval 1 success
|
|
*/
|
|
static int configuration_parse_unsigned_integer(const char *value, unsigned int *result)
|
|
{
|
|
if (ast_strlen_zero(value) || !strncmp(value, "-", 1)) {
|
|
return 0;
|
|
}
|
|
|
|
return sscanf(value, "%30u", result);
|
|
}
|
|
|
|
static int age_cmp(void *a, void *b)
|
|
{
|
|
return ast_tvcmp(((struct sorcery_memory_cached_object *) b)->created,
|
|
((struct sorcery_memory_cached_object *) a)->created);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to create a new sorcery memory cache using provided configuration
|
|
*
|
|
* \param data A stringified configuration for the memory cache
|
|
*
|
|
* \retval non-NULL success
|
|
* \retval NULL failure
|
|
*/
|
|
static void *sorcery_memory_cache_open(const char *data)
|
|
{
|
|
char *options = ast_strdupa(data), *option;
|
|
RAII_VAR(struct sorcery_memory_cache *, cache, NULL, ao2_cleanup);
|
|
|
|
cache = ao2_alloc_options(sizeof(*cache), sorcery_memory_cache_destructor, AO2_ALLOC_OPT_LOCK_NOLOCK);
|
|
if (!cache) {
|
|
return NULL;
|
|
}
|
|
|
|
cache->expire_id = -1;
|
|
cache->stale_update_sched_id = -1;
|
|
|
|
/* If no configuration options have been provided this memory cache will operate in a default
|
|
* configuration.
|
|
*/
|
|
while (!ast_strlen_zero(options) && (option = strsep(&options, ","))) {
|
|
char *name = strsep(&option, "="), *value = option;
|
|
|
|
if (!strcasecmp(name, "name")) {
|
|
if (ast_strlen_zero(value)) {
|
|
ast_log(LOG_ERROR, "A name must be specified for the memory cache\n");
|
|
return NULL;
|
|
}
|
|
ast_free(cache->name);
|
|
cache->name = ast_strdup(value);
|
|
} else if (!strcasecmp(name, "maximum_objects")) {
|
|
if (configuration_parse_unsigned_integer(value, &cache->maximum_objects) != 1) {
|
|
ast_log(LOG_ERROR, "Unsupported maximum objects value of '%s' used for memory cache\n",
|
|
value);
|
|
return NULL;
|
|
}
|
|
} else if (!strcasecmp(name, "object_lifetime_maximum")) {
|
|
if (configuration_parse_unsigned_integer(value, &cache->object_lifetime_maximum) != 1) {
|
|
ast_log(LOG_ERROR, "Unsupported object maximum lifetime value of '%s' used for memory cache\n",
|
|
value);
|
|
return NULL;
|
|
}
|
|
} else if (!strcasecmp(name, "object_lifetime_stale")) {
|
|
if (configuration_parse_unsigned_integer(value, &cache->object_lifetime_stale) != 1) {
|
|
ast_log(LOG_ERROR, "Unsupported object stale lifetime value of '%s' used for memory cache\n",
|
|
value);
|
|
return NULL;
|
|
}
|
|
} else if (!strcasecmp(name, "expire_on_reload")) {
|
|
cache->expire_on_reload = ast_true(value);
|
|
} else if (!strcasecmp(name, "full_backend_cache")) {
|
|
cache->full_backend_cache = ast_true(value);
|
|
} else {
|
|
ast_log(LOG_ERROR, "Unsupported option '%s' used for memory cache\n", name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
cache->objects = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_RWLOCK, 0,
|
|
cache->maximum_objects ? cache->maximum_objects : CACHE_CONTAINER_BUCKET_SIZE,
|
|
sorcery_memory_cached_object_hash, NULL, sorcery_memory_cached_object_cmp);
|
|
if (!cache->objects) {
|
|
ast_log(LOG_ERROR, "Could not create a container to hold cached objects for memory cache\n");
|
|
return NULL;
|
|
}
|
|
|
|
cache->object_heap = ast_heap_create(CACHE_HEAP_INIT_HEIGHT, age_cmp,
|
|
offsetof(struct sorcery_memory_cached_object, __heap_index));
|
|
if (!cache->object_heap) {
|
|
ast_log(LOG_ERROR, "Could not create heap to hold cached objects\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* The memory cache is not linked to the caches container until the load callback is invoked.
|
|
* Linking occurs there so an intelligent cache name can be constructed using the module of
|
|
* the sorcery instance and the specific object type if no cache name was specified as part
|
|
* of the configuration.
|
|
*/
|
|
|
|
/* This is done as RAII_VAR will drop the reference */
|
|
return ao2_bump(cache);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to delete an object from a memory cache
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data The sorcery memory cache
|
|
* \param object The object to cache
|
|
*
|
|
* \retval 0 success
|
|
* \retval -1 failure
|
|
*/
|
|
static int sorcery_memory_cache_delete(const struct ast_sorcery *sorcery, void *data, void *object)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
int res;
|
|
|
|
ao2_wrlock(cache->objects);
|
|
res = remove_from_cache(cache, ast_sorcery_object_get_id(object), 1);
|
|
ao2_unlock(cache->objects);
|
|
|
|
if (res) {
|
|
ast_debug(1, "Unable to delete object '%s' from sorcery cache\n", ast_sorcery_object_get_id(object));
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function to terminate a memory cache
|
|
*
|
|
* \param data The sorcery memory cache
|
|
*/
|
|
static void sorcery_memory_cache_close(void *data)
|
|
{
|
|
struct sorcery_memory_cache *cache = data;
|
|
|
|
/* This can occur if a cache is created but never loaded */
|
|
if (!ast_strlen_zero(cache->name)) {
|
|
ao2_unlink(caches, cache);
|
|
}
|
|
|
|
if (cache->object_lifetime_maximum) {
|
|
/* If object lifetime support is enabled we need to explicitly drop all cached objects here
|
|
* and stop the scheduled task. Failure to do so could potentially keep the cache around for
|
|
* a prolonged period of time.
|
|
*/
|
|
ao2_wrlock(cache->objects);
|
|
remove_all_from_cache(cache);
|
|
ao2_unlock(cache->objects);
|
|
}
|
|
|
|
if (cache->full_backend_cache) {
|
|
ao2_wrlock(cache->objects);
|
|
cache->sorcery = NULL;
|
|
ao2_unlock(cache->objects);
|
|
}
|
|
|
|
ao2_ref(cache, -1);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief CLI tab completion for cache names
|
|
*/
|
|
static char *sorcery_memory_cache_complete_name(const char *word, int state)
|
|
{
|
|
struct sorcery_memory_cache *cache;
|
|
struct ao2_iterator it_caches;
|
|
int wordlen = strlen(word);
|
|
int which = 0;
|
|
char *result = NULL;
|
|
|
|
it_caches = ao2_iterator_init(caches, 0);
|
|
while ((cache = ao2_iterator_next(&it_caches))) {
|
|
if (!strncasecmp(word, cache->name, wordlen)
|
|
&& ++which > state) {
|
|
result = ast_strdup(cache->name);
|
|
}
|
|
ao2_ref(cache, -1);
|
|
if (result) {
|
|
break;
|
|
}
|
|
}
|
|
ao2_iterator_destroy(&it_caches);
|
|
return result;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief CLI command implementation for 'sorcery memory cache show'
|
|
*/
|
|
static char *sorcery_memory_cache_show(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "sorcery memory cache show";
|
|
e->usage =
|
|
"Usage: sorcery memory cache show <name>\n"
|
|
" Show sorcery memory cache configuration and statistics.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
if (a->pos == 4) {
|
|
return sorcery_memory_cache_complete_name(a->word, a->n);
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (a->argc != 5) {
|
|
return CLI_SHOWUSAGE;
|
|
}
|
|
|
|
cache = ao2_find(caches, a->argv[4], OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' does not exist\n", a->argv[4]);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
ast_cli(a->fd, "Sorcery memory cache: %s\n", cache->name);
|
|
ast_cli(a->fd, "Number of objects within cache: %d\n", ao2_container_count(cache->objects));
|
|
if (cache->maximum_objects) {
|
|
ast_cli(a->fd, "Maximum allowed objects: %d\n", cache->maximum_objects);
|
|
} else {
|
|
ast_cli(a->fd, "There is no limit on the maximum number of objects in the cache\n");
|
|
}
|
|
if (cache->object_lifetime_maximum) {
|
|
ast_cli(a->fd, "Number of seconds before object expires: %d\n", cache->object_lifetime_maximum);
|
|
} else {
|
|
ast_cli(a->fd, "Object expiration is not enabled - cached objects will not expire\n");
|
|
}
|
|
if (cache->object_lifetime_stale) {
|
|
ast_cli(a->fd, "Number of seconds before object becomes stale: %d\n", cache->object_lifetime_stale);
|
|
} else {
|
|
ast_cli(a->fd, "Object staleness is not enabled - cached objects will not go stale\n");
|
|
}
|
|
ast_cli(a->fd, "Expire all objects on reload: %s\n", AST_CLI_ONOFF(cache->expire_on_reload));
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
/*! \brief Structure used to pass data for printing cached object information */
|
|
struct print_object_details {
|
|
/*! \brief The sorcery memory cache */
|
|
struct sorcery_memory_cache *cache;
|
|
/*! \brief The CLI arguments */
|
|
struct ast_cli_args *a;
|
|
};
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Callback function for displaying object within the cache
|
|
*/
|
|
static int sorcery_memory_cache_print_object(void *obj, void *arg, int flags)
|
|
{
|
|
#define FORMAT "%-25.25s %-15u %-15u \n"
|
|
struct sorcery_memory_cached_object *cached = obj;
|
|
struct print_object_details *details = arg;
|
|
int seconds_until_expire = 0, seconds_until_stale = 0;
|
|
|
|
if (details->cache->object_lifetime_maximum) {
|
|
seconds_until_expire = ast_tvdiff_ms(ast_tvadd(cached->created, ast_samp2tv(details->cache->object_lifetime_maximum, 1)), ast_tvnow()) / 1000;
|
|
}
|
|
if (details->cache->object_lifetime_stale) {
|
|
seconds_until_stale = ast_tvdiff_ms(ast_tvadd(cached->created, ast_samp2tv(details->cache->object_lifetime_stale, 1)), ast_tvnow()) / 1000;
|
|
}
|
|
|
|
ast_cli(details->a->fd, FORMAT, ast_sorcery_object_get_id(cached->object), MAX(seconds_until_stale, 0), MAX(seconds_until_expire, 0));
|
|
|
|
return CMP_MATCH;
|
|
#undef FORMAT
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief CLI command implementation for 'sorcery memory cache dump'
|
|
*/
|
|
static char *sorcery_memory_cache_dump(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
#define FORMAT "%-25.25s %-15.15s %-15.15s \n"
|
|
struct sorcery_memory_cache *cache;
|
|
struct print_object_details details;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "sorcery memory cache dump";
|
|
e->usage =
|
|
"Usage: sorcery memory cache dump <name>\n"
|
|
" Dump a list of the objects within the cache, listed by object identifier.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
if (a->pos == 4) {
|
|
return sorcery_memory_cache_complete_name(a->word, a->n);
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (a->argc != 5) {
|
|
return CLI_SHOWUSAGE;
|
|
}
|
|
|
|
cache = ao2_find(caches, a->argv[4], OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' does not exist\n", a->argv[4]);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
details.cache = cache;
|
|
details.a = a;
|
|
|
|
ast_cli(a->fd, "Dumping sorcery memory cache '%s':\n", cache->name);
|
|
if (!cache->object_lifetime_stale) {
|
|
ast_cli(a->fd, " * Staleness is not enabled - objects will not go stale\n");
|
|
}
|
|
if (!cache->object_lifetime_maximum) {
|
|
ast_cli(a->fd, " * Object lifetime is not enabled - objects will not expire\n");
|
|
}
|
|
ast_cli(a->fd, FORMAT, "Object Name", "Stale In", "Expires In");
|
|
ast_cli(a->fd, FORMAT, "-------------------------", "---------------", "---------------");
|
|
ao2_callback(cache->objects, OBJ_NODATA | OBJ_MULTIPLE, sorcery_memory_cache_print_object, &details);
|
|
ast_cli(a->fd, FORMAT, "-------------------------", "---------------", "---------------");
|
|
ast_cli(a->fd, "Total number of objects cached: %d\n", ao2_container_count(cache->objects));
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
return CLI_SUCCESS;
|
|
#undef FORMAT
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief CLI tab completion for cached object names
|
|
*/
|
|
static char *sorcery_memory_cache_complete_object_name(const char *cache_name, const char *word, int state)
|
|
{
|
|
struct sorcery_memory_cache *cache;
|
|
struct sorcery_memory_cached_object *cached;
|
|
struct ao2_iterator it_cached;
|
|
int wordlen = strlen(word);
|
|
int which = 0;
|
|
char *result = NULL;
|
|
|
|
cache = ao2_find(caches, cache_name, OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
return NULL;
|
|
}
|
|
|
|
it_cached = ao2_iterator_init(cache->objects, 0);
|
|
while ((cached = ao2_iterator_next(&it_cached))) {
|
|
if (!strncasecmp(word, ast_sorcery_object_get_id(cached->object), wordlen)
|
|
&& ++which > state) {
|
|
result = ast_strdup(ast_sorcery_object_get_id(cached->object));
|
|
}
|
|
ao2_ref(cached, -1);
|
|
if (result) {
|
|
break;
|
|
}
|
|
}
|
|
ao2_iterator_destroy(&it_cached);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
return result;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief CLI command implementation for 'sorcery memory cache expire'
|
|
*/
|
|
static char *sorcery_memory_cache_expire(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "sorcery memory cache expire";
|
|
e->usage =
|
|
"Usage: sorcery memory cache expire <cache name> [object name]\n"
|
|
" Expire a specific object or ALL objects within a sorcery memory cache.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
if (a->pos == 4) {
|
|
return sorcery_memory_cache_complete_name(a->word, a->n);
|
|
} else if (a->pos == 5) {
|
|
return sorcery_memory_cache_complete_object_name(a->argv[4], a->word, a->n);
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (a->argc < 5 || a->argc > 6) {
|
|
return CLI_SHOWUSAGE;
|
|
}
|
|
|
|
cache = ao2_find(caches, a->argv[4], OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' does not exist\n", a->argv[4]);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
ao2_wrlock(cache->objects);
|
|
if (a->argc == 5) {
|
|
remove_all_from_cache(cache);
|
|
ast_cli(a->fd, "All objects have been removed from cache '%s'\n", a->argv[4]);
|
|
} else {
|
|
if (cache->full_backend_cache) {
|
|
ast_cli(a->fd, "Due to full backend caching per-object expiration is not available on cache '%s'\n", a->argv[4]);
|
|
} else if (!remove_from_cache(cache, a->argv[5], 1)) {
|
|
ast_cli(a->fd, "Successfully expired object '%s' from cache '%s'\n", a->argv[5], a->argv[4]);
|
|
} else {
|
|
ast_cli(a->fd, "Object '%s' was not expired from cache '%s' as it was not found\n", a->argv[5],
|
|
a->argv[4]);
|
|
}
|
|
}
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief CLI command implementation for 'sorcery memory cache stale'
|
|
*/
|
|
static char *sorcery_memory_cache_stale(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
struct sorcery_memory_cache *cache;
|
|
int reload = 0;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "sorcery memory cache stale";
|
|
e->usage =
|
|
"Usage: sorcery memory cache stale <cache name> [object name [reload]]\n"
|
|
" Mark a specific object or ALL objects as stale in a sorcery memory cache.\n"
|
|
" If \"reload\" is specified, then the object is marked stale and immediately\n"
|
|
" retrieved from backend storage to repopulate the cache\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
if (a->pos == 4) {
|
|
return sorcery_memory_cache_complete_name(a->word, a->n);
|
|
} else if (a->pos == 5) {
|
|
return sorcery_memory_cache_complete_object_name(a->argv[4], a->word, a->n);
|
|
} else if (a->pos == 6) {
|
|
static const char * const completions[] = { "reload", NULL };
|
|
return ast_cli_complete(a->word, completions, a->n);
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (a->argc < 5 || a->argc > 7) {
|
|
return CLI_SHOWUSAGE;
|
|
}
|
|
|
|
if (a->argc == 7) {
|
|
if (!strcasecmp(a->argv[6], "reload")) {
|
|
reload = 1;
|
|
} else {
|
|
return CLI_SHOWUSAGE;
|
|
}
|
|
}
|
|
|
|
cache = ao2_find(caches, a->argv[4], OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' does not exist\n", a->argv[4]);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
if (!cache->object_lifetime_stale) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' does not have staleness enabled\n", a->argv[4]);
|
|
ao2_ref(cache, -1);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
ao2_rdlock(cache->objects);
|
|
if (a->argc == 5) {
|
|
mark_all_as_stale_in_cache(cache);
|
|
ast_cli(a->fd, "Marked all objects in sorcery memory cache '%s' as stale\n", a->argv[4]);
|
|
} else {
|
|
if (!mark_object_as_stale_in_cache(cache, a->argv[5])) {
|
|
ast_cli(a->fd, "Successfully marked object '%s' in memory cache '%s' as stale\n",
|
|
a->argv[5], a->argv[4]);
|
|
if (reload) {
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
cached = ao2_find(cache->objects, a->argv[5], OBJ_SEARCH_KEY | OBJ_NOLOCK);
|
|
if (cached) {
|
|
memory_cache_stale_update_object(cache->sorcery, cache, cached);
|
|
ao2_ref(cached, -1);
|
|
}
|
|
}
|
|
} else {
|
|
ast_cli(a->fd, "Object '%s' in sorcery memory cache '%s' could not be marked as stale as it was not found\n",
|
|
a->argv[5], a->argv[4]);
|
|
}
|
|
}
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief CLI command implementation for 'sorcery memory cache populate'
|
|
*/
|
|
static char *sorcery_memory_cache_populate(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "sorcery memory cache populate";
|
|
e->usage =
|
|
"Usage: sorcery memory cache populate <cache name>\n"
|
|
" Expire all objects in the cache and populate it with ALL objects from backend.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
if (a->pos == 4) {
|
|
return sorcery_memory_cache_complete_name(a->word, a->n);
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (a->argc != 5) {
|
|
return CLI_SHOWUSAGE;
|
|
}
|
|
|
|
cache = ao2_find(caches, a->argv[4], OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' does not exist\n", a->argv[4]);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
if (!cache->full_backend_cache) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' does not have full backend caching enabled\n", a->argv[4]);
|
|
ao2_ref(cache, -1);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
ao2_wrlock(cache->objects);
|
|
if (!cache->sorcery) {
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' is no longer active\n", a->argv[4]);
|
|
ao2_unlock(cache->objects);
|
|
ao2_ref(cache, -1);
|
|
return CLI_FAILURE;
|
|
}
|
|
|
|
remove_all_from_cache(cache);
|
|
memory_cache_populate(cache->sorcery, cache->object_type, cache);
|
|
|
|
ast_cli(a->fd, "Specified sorcery memory cache '%s' has been populated with '%d' objects from the backend\n",
|
|
a->argv[4], ao2_container_count(cache->objects));
|
|
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
static struct ast_cli_entry cli_memory_cache[] = {
|
|
AST_CLI_DEFINE(sorcery_memory_cache_show, "Show sorcery memory cache information"),
|
|
AST_CLI_DEFINE(sorcery_memory_cache_dump, "Dump all objects within a sorcery memory cache"),
|
|
AST_CLI_DEFINE(sorcery_memory_cache_expire, "Expire a specific object or ALL objects within a sorcery memory cache"),
|
|
AST_CLI_DEFINE(sorcery_memory_cache_stale, "Mark a specific object or ALL objects as stale within a sorcery memory cache"),
|
|
AST_CLI_DEFINE(sorcery_memory_cache_populate, "Clear and populate the sorcery memory cache with objects from the backend"),
|
|
};
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AMI command implementation for 'SorceryMemoryCacheExpireObject'
|
|
*/
|
|
static int sorcery_memory_cache_ami_expire_object(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *cache_name = astman_get_header(m, "Cache");
|
|
const char *object_name = astman_get_header(m, "Object");
|
|
struct sorcery_memory_cache *cache;
|
|
int res;
|
|
|
|
if (ast_strlen_zero(cache_name)) {
|
|
astman_send_error(s, m, "SorceryMemoryCacheExpireObject requires that a cache name be provided.\n");
|
|
return 0;
|
|
} else if (ast_strlen_zero(object_name)) {
|
|
astman_send_error(s, m, "SorceryMemoryCacheExpireObject requires that an object name be provided\n");
|
|
return 0;
|
|
}
|
|
|
|
cache = ao2_find(caches, cache_name, OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
astman_send_error(s, m, "The provided cache does not exist\n");
|
|
return 0;
|
|
}
|
|
|
|
ao2_wrlock(cache->objects);
|
|
if (cache->full_backend_cache) {
|
|
res = 1;
|
|
} else {
|
|
res = remove_from_cache(cache, object_name, 1);
|
|
}
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
if (res == 1) {
|
|
astman_send_error(s, m, "Due to full backend caching per-object expiration is not available, consider using SorceryMemoryCachePopulate or SorceryMemoryCacheExpire instead\n");
|
|
} else if (!res) {
|
|
astman_send_ack(s, m, "The provided object was expired from the cache\n");
|
|
} else {
|
|
astman_send_error(s, m, "The provided object could not be expired from the cache\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AMI command implementation for 'SorceryMemoryCacheExpire'
|
|
*/
|
|
static int sorcery_memory_cache_ami_expire(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *cache_name = astman_get_header(m, "Cache");
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
if (ast_strlen_zero(cache_name)) {
|
|
astman_send_error(s, m, "SorceryMemoryCacheExpire requires that a cache name be provided.\n");
|
|
return 0;
|
|
}
|
|
|
|
cache = ao2_find(caches, cache_name, OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
astman_send_error(s, m, "The provided cache does not exist\n");
|
|
return 0;
|
|
}
|
|
|
|
ao2_wrlock(cache->objects);
|
|
remove_all_from_cache(cache);
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
astman_send_ack(s, m, "All objects were expired from the cache\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AMI command implementation for 'SorceryMemoryCacheStaleObject'
|
|
*/
|
|
static int sorcery_memory_cache_ami_stale_object(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *cache_name = astman_get_header(m, "Cache");
|
|
const char *object_name = astman_get_header(m, "Object");
|
|
const char *reload = astman_get_header(m, "Reload");
|
|
struct sorcery_memory_cache *cache;
|
|
int res;
|
|
|
|
if (ast_strlen_zero(cache_name)) {
|
|
astman_send_error(s, m, "SorceryMemoryCacheStaleObject requires that a cache name be provided.\n");
|
|
return 0;
|
|
} else if (ast_strlen_zero(object_name)) {
|
|
astman_send_error(s, m, "SorceryMemoryCacheStaleObject requires that an object name be provided\n");
|
|
return 0;
|
|
}
|
|
|
|
cache = ao2_find(caches, cache_name, OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
astman_send_error(s, m, "The provided cache does not exist\n");
|
|
return 0;
|
|
}
|
|
|
|
ao2_rdlock(cache->objects);
|
|
|
|
res = mark_object_as_stale_in_cache(cache, object_name);
|
|
|
|
if (ast_true(reload)) {
|
|
struct sorcery_memory_cached_object *cached;
|
|
|
|
cached = ao2_find(cache->objects, object_name, OBJ_SEARCH_KEY | OBJ_NOLOCK);
|
|
if (cached) {
|
|
memory_cache_stale_update_object(cache->sorcery, cache, cached);
|
|
ao2_ref(cached, -1);
|
|
}
|
|
}
|
|
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
if (!res) {
|
|
astman_send_ack(s, m, "The provided object was marked as stale in the cache\n");
|
|
} else {
|
|
astman_send_error(s, m, "The provided object could not be marked as stale in the cache\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AMI command implementation for 'SorceryMemoryCacheStale'
|
|
*/
|
|
static int sorcery_memory_cache_ami_stale(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *cache_name = astman_get_header(m, "Cache");
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
if (ast_strlen_zero(cache_name)) {
|
|
astman_send_error(s, m, "SorceryMemoryCacheStale requires that a cache name be provided.\n");
|
|
return 0;
|
|
}
|
|
|
|
cache = ao2_find(caches, cache_name, OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
astman_send_error(s, m, "The provided cache does not exist\n");
|
|
return 0;
|
|
}
|
|
|
|
ao2_rdlock(cache->objects);
|
|
mark_all_as_stale_in_cache(cache);
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
astman_send_ack(s, m, "All objects were marked as stale in the cache\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief AMI command implementation for 'SorceryMemoryCachePopulate'
|
|
*/
|
|
static int sorcery_memory_cache_ami_populate(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *cache_name = astman_get_header(m, "Cache");
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
if (ast_strlen_zero(cache_name)) {
|
|
astman_send_error(s, m, "SorceryMemoryCachePopulate requires that a cache name be provided.\n");
|
|
return 0;
|
|
}
|
|
|
|
cache = ao2_find(caches, cache_name, OBJ_SEARCH_KEY);
|
|
if (!cache) {
|
|
astman_send_error(s, m, "The provided cache does not exist\n");
|
|
return 0;
|
|
}
|
|
|
|
if (!cache->full_backend_cache) {
|
|
astman_send_error(s, m, "The provided cache does not have full backend caching enabled\n");
|
|
ao2_ref(cache, -1);
|
|
return 0;
|
|
}
|
|
|
|
ao2_wrlock(cache->objects);
|
|
if (!cache->sorcery) {
|
|
astman_send_error(s, m, "The provided cache is no longer active\n");
|
|
ao2_unlock(cache->objects);
|
|
ao2_ref(cache, -1);
|
|
return 0;
|
|
}
|
|
|
|
remove_all_from_cache(cache);
|
|
memory_cache_populate(cache->sorcery, cache->object_type, cache);
|
|
|
|
ao2_unlock(cache->objects);
|
|
|
|
ao2_ref(cache, -1);
|
|
|
|
astman_send_ack(s, m, "Cache has been expired and populated\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef TEST_FRAMEWORK
|
|
|
|
/*! \brief Dummy sorcery object */
|
|
struct test_sorcery_object {
|
|
SORCERY_OBJECT(details);
|
|
};
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Allocator for test object
|
|
*
|
|
* \param id The identifier for the object
|
|
*
|
|
* \retval non-NULL success
|
|
* \retval NULL failure
|
|
*/
|
|
static void *test_sorcery_object_alloc(const char *id)
|
|
{
|
|
return ast_sorcery_generic_alloc(sizeof(struct test_sorcery_object), NULL);
|
|
}
|
|
|
|
/*!
|
|
* \internal
|
|
* \brief Allocator for test sorcery instance
|
|
*
|
|
* \retval non-NULL success
|
|
* \retval NULL failure
|
|
*/
|
|
static struct ast_sorcery *alloc_and_initialize_sorcery(void)
|
|
{
|
|
struct ast_sorcery *sorcery;
|
|
|
|
if (!(sorcery = ast_sorcery_open())) {
|
|
return NULL;
|
|
}
|
|
|
|
if ((ast_sorcery_apply_default(sorcery, "test", "memory", NULL) != AST_SORCERY_APPLY_SUCCESS) ||
|
|
ast_sorcery_internal_object_register(sorcery, "test", test_sorcery_object_alloc, NULL, NULL)) {
|
|
ast_sorcery_unref(sorcery);
|
|
return NULL;
|
|
}
|
|
|
|
return sorcery;
|
|
}
|
|
|
|
AST_TEST_DEFINE(open_with_valid_options)
|
|
{
|
|
int res = AST_TEST_PASS;
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "open_with_valid_options";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Attempt to create sorcery memory caches using valid options";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Creates a memory cache with default configuration\n"
|
|
"\t* Creates a memory cache with a maximum object count of 10 and verifies it\n"
|
|
"\t* Creates a memory cache with a maximum object lifetime of 60 and verifies it\n"
|
|
"\t* Creates a memory cache with a stale object lifetime of 90 and verifies it";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache using default configuration\n");
|
|
res = AST_TEST_FAIL;
|
|
} else {
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("maximum_objects=10");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache with a maximum object count of 10\n");
|
|
res = AST_TEST_FAIL;
|
|
} else {
|
|
if (cache->maximum_objects != 10) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with a maximum object count of 10 but it has '%u'\n",
|
|
cache->maximum_objects);
|
|
}
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("object_lifetime_maximum=60");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache with a maximum object lifetime of 60\n");
|
|
res = AST_TEST_FAIL;
|
|
} else {
|
|
if (cache->object_lifetime_maximum != 60) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with a maximum object lifetime of 60 but it has '%u'\n",
|
|
cache->object_lifetime_maximum);
|
|
}
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("object_lifetime_stale=90");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache with a stale object lifetime of 90\n");
|
|
res = AST_TEST_FAIL;
|
|
} else {
|
|
if (cache->object_lifetime_stale != 90) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with a stale object lifetime of 90 but it has '%u'\n",
|
|
cache->object_lifetime_stale);
|
|
}
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
|
|
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(open_with_invalid_options)
|
|
{
|
|
int res = AST_TEST_PASS;
|
|
struct sorcery_memory_cache *cache;
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "open_with_invalid_options";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Attempt to create sorcery memory caches using invalid options";
|
|
info->description = "This test attempts to perform the following:\n"
|
|
"\t* Create a memory cache with an empty name\n"
|
|
"\t* Create a memory cache with a maximum object count of -1\n"
|
|
"\t* Create a memory cache with a maximum object count of toast\n"
|
|
"\t* Create a memory cache with a maximum object lifetime of -1\n"
|
|
"\t* Create a memory cache with a maximum object lifetime of toast\n"
|
|
"\t* Create a memory cache with a stale object lifetime of -1\n"
|
|
"\t* Create a memory cache with a stale object lifetime of toast";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("name=");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with an empty name\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("maximum_objects=-1");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with a maximum object count of -1\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("maximum_objects=toast");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with a maximum object count of toast\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("object_lifetime_maximum=-1");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with an object lifetime maximum of -1\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("object_lifetime_maximum=toast");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with an object lifetime maximum of toast\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("object_lifetime_stale=-1");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with a stale object lifetime of -1\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("object_lifetime_stale=toast");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with a stale object lifetime of toast\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("tacos");
|
|
if (cache) {
|
|
ast_test_status_update(test, "Created a sorcery memory cache with an invalid configuration option 'tacos'\n");
|
|
sorcery_memory_cache_close(cache);
|
|
res = AST_TEST_FAIL;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(create_and_retrieve)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct sorcery_memory_cache *cache = NULL;
|
|
RAII_VAR(void *, object, NULL, ao2_cleanup);
|
|
RAII_VAR(void *, cached_object, NULL, ao2_cleanup);
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "create";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Attempt to create an object in the cache";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Creates a memory cache with default options\n"
|
|
"\t* Creates a sorcery instance with a test object\n"
|
|
"\t* Creates a test object with an id of test\n"
|
|
"\t* Pushes the test object into the memory cache\n"
|
|
"\t* Confirms that the test object is in the cache";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache using default options\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(cache->objects)) {
|
|
ast_test_status_update(test, "Memory cache contains cached objects before we added one\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery = alloc_and_initialize_sorcery();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create a test sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
object = ast_sorcery_alloc(sorcery, "test", "test");
|
|
if (!object) {
|
|
ast_test_status_update(test, "Failed to allocate a test object\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, object);
|
|
|
|
if (!ao2_container_count(cache->objects)) {
|
|
ast_test_status_update(test, "Added test object to memory cache but cache remains empty\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
cached_object = sorcery_memory_cache_retrieve_id(sorcery, cache, "test", "test");
|
|
if (!cached_object) {
|
|
ast_test_status_update(test, "Object placed into memory cache could not be retrieved\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (cached_object != object) {
|
|
ast_test_status_update(test, "Object retrieved from memory cached is not the one we cached\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (cache) {
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(update)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct sorcery_memory_cache *cache = NULL;
|
|
RAII_VAR(void *, original_object, NULL, ao2_cleanup);
|
|
RAII_VAR(void *, updated_object, NULL, ao2_cleanup);
|
|
RAII_VAR(void *, cached_object, NULL, ao2_cleanup);
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "create";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Attempt to create and then update an object in the cache";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Creates a memory cache with default options\n"
|
|
"\t* Creates a sorcery instance with a test object\n"
|
|
"\t* Creates a test object with an id of test\n"
|
|
"\t* Pushes the test object into the memory cache\n"
|
|
"\t* Confirms that the test object is in the cache\n"
|
|
"\t* Creates a new test object with the same id of test\n"
|
|
"\t* Pushes the new test object into the memory cache\n"
|
|
"\t* Confirms that the new test object has replaced the old one";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache using default options\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(cache->objects)) {
|
|
ast_test_status_update(test, "Memory cache contains cached objects before we added one\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery = alloc_and_initialize_sorcery();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create a test sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
original_object = ast_sorcery_alloc(sorcery, "test", "test");
|
|
if (!original_object) {
|
|
ast_test_status_update(test, "Failed to allocate a test object\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, original_object);
|
|
|
|
updated_object = ast_sorcery_alloc(sorcery, "test", "test");
|
|
if (!updated_object) {
|
|
ast_test_status_update(test, "Failed to allocate an updated test object\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, updated_object);
|
|
|
|
if (ao2_container_count(cache->objects) != 1) {
|
|
ast_test_status_update(test, "Added updated test object to memory cache but cache now contains %d objects instead of 1\n",
|
|
ao2_container_count(cache->objects));
|
|
goto cleanup;
|
|
}
|
|
|
|
cached_object = sorcery_memory_cache_retrieve_id(sorcery, cache, "test", "test");
|
|
if (!cached_object) {
|
|
ast_test_status_update(test, "Updated object placed into memory cache could not be retrieved\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (cached_object == original_object) {
|
|
ast_test_status_update(test, "Updated object placed into memory cache but old one is being retrieved\n");
|
|
goto cleanup;
|
|
} else if (cached_object != updated_object) {
|
|
ast_test_status_update(test, "Updated object placed into memory cache but different one is being retrieved\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (cache) {
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(delete)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct sorcery_memory_cache *cache = NULL;
|
|
RAII_VAR(void *, object, NULL, ao2_cleanup);
|
|
RAII_VAR(void *, cached_object, NULL, ao2_cleanup);
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "delete";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Attempt to create and then delete an object in the cache";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Creates a memory cache with default options\n"
|
|
"\t* Creates a sorcery instance with a test object\n"
|
|
"\t* Creates a test object with an id of test\n"
|
|
"\t* Pushes the test object into the memory cache\n"
|
|
"\t* Confirms that the test object is in the cache\n"
|
|
"\t* Deletes the test object from the cache\n"
|
|
"\t* Confirms that the test object is no longer in the cache";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache using default options\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(cache->objects)) {
|
|
ast_test_status_update(test, "Memory cache contains cached objects before we added one\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery = alloc_and_initialize_sorcery();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create a test sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
object = ast_sorcery_alloc(sorcery, "test", "test");
|
|
if (!object) {
|
|
ast_test_status_update(test, "Failed to allocate a test object\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, object);
|
|
|
|
if (!ao2_container_count(cache->objects)) {
|
|
ast_test_status_update(test, "Added test object to memory cache but cache contains no objects\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
cached_object = sorcery_memory_cache_retrieve_id(sorcery, cache, "test", "test");
|
|
if (!cached_object) {
|
|
ast_test_status_update(test, "Test object placed into memory cache could not be retrieved\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
ao2_ref(cached_object, -1);
|
|
cached_object = NULL;
|
|
|
|
sorcery_memory_cache_delete(sorcery, cache, object);
|
|
|
|
cached_object = sorcery_memory_cache_retrieve_id(sorcery, cache, "test", "test");
|
|
if (cached_object) {
|
|
ast_test_status_update(test, "Test object deleted from memory cache can still be retrieved\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (cache) {
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int check_cache_content(struct ast_test *test, struct ast_sorcery *sorcery, struct sorcery_memory_cache *cache,
|
|
const char **in_cache, size_t num_in_cache, const char **not_in_cache, size_t num_not_in_cache)
|
|
{
|
|
int i;
|
|
int res = 0;
|
|
RAII_VAR(void *, cached_object, NULL, ao2_cleanup);
|
|
|
|
for (i = 0; i < num_in_cache; ++i) {
|
|
cached_object = sorcery_memory_cache_retrieve_id(sorcery, cache, "test", in_cache[i]);
|
|
if (!cached_object) {
|
|
ast_test_status_update(test, "Failed to retrieve '%s' object from the cache\n",
|
|
in_cache[i]);
|
|
res = -1;
|
|
}
|
|
ao2_ref(cached_object, -1);
|
|
}
|
|
|
|
for (i = 0; i < num_not_in_cache; ++i) {
|
|
cached_object = sorcery_memory_cache_retrieve_id(sorcery, cache, "test", not_in_cache[i]);
|
|
if (cached_object) {
|
|
ast_test_status_update(test, "Retrieved '%s' object from the cache unexpectedly\n",
|
|
not_in_cache[i]);
|
|
ao2_ref(cached_object, -1);
|
|
res = -1;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(maximum_objects)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct sorcery_memory_cache *cache = NULL;
|
|
RAII_VAR(void *, alice, NULL, ao2_cleanup);
|
|
RAII_VAR(void *, bob, NULL, ao2_cleanup);
|
|
RAII_VAR(void *, charlie, NULL, ao2_cleanup);
|
|
RAII_VAR(void *, cached_object, NULL, ao2_cleanup);
|
|
const char *in_cache[2];
|
|
const char *not_in_cache[2];
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "maximum_objects";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Ensure that the 'maximum_objects' option works as expected";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Creates a memory cache with maximum_objects=2\n"
|
|
"\t* Creates a sorcery instance\n"
|
|
"\t* Creates a three test objects: alice, bob, charlie, and david\n"
|
|
"\t* Pushes alice and bob into the memory cache\n"
|
|
"\t* Confirms that alice and bob are in the memory cache\n"
|
|
"\t* Pushes charlie into the memory cache\n"
|
|
"\t* Confirms that bob and charlie are in the memory cache\n"
|
|
"\t* Deletes charlie from the memory cache\n"
|
|
"\t* Confirms that only bob is in the memory cache\n"
|
|
"\t* Pushes alice into the memory cache\n"
|
|
"\t* Confirms that bob and alice are in the memory cache";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("maximum_objects=2");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache with maximum_objects=2\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(cache->objects)) {
|
|
ast_test_status_update(test, "Memory cache contains cached objects before we added one\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery = alloc_and_initialize_sorcery();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create a test sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
alice = ast_sorcery_alloc(sorcery, "test", "alice");
|
|
bob = ast_sorcery_alloc(sorcery, "test", "bob");
|
|
charlie = ast_sorcery_alloc(sorcery, "test", "charlie");
|
|
|
|
if (!alice || !bob || !charlie) {
|
|
ast_test_status_update(test, "Failed to allocate sorcery object(s)\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, alice);
|
|
in_cache[0] = "alice";
|
|
in_cache[1] = NULL;
|
|
not_in_cache[0] = "bob";
|
|
not_in_cache[1] = "charlie";
|
|
if (check_cache_content(test, sorcery, cache, in_cache, 1, not_in_cache, 2)) {
|
|
goto cleanup;
|
|
}
|
|
|
|
/* Delays are added to ensure that we are not adding cache entries within the
|
|
* same microsecond
|
|
*/
|
|
usleep(1000);
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, bob);
|
|
in_cache[0] = "alice";
|
|
in_cache[1] = "bob";
|
|
not_in_cache[0] = "charlie";
|
|
not_in_cache[1] = NULL;
|
|
if (check_cache_content(test, sorcery, cache, in_cache, 2, not_in_cache, 1)) {
|
|
goto cleanup;
|
|
}
|
|
|
|
usleep(1000);
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, charlie);
|
|
in_cache[0] = "bob";
|
|
in_cache[1] = "charlie";
|
|
not_in_cache[0] = "alice";
|
|
not_in_cache[1] = NULL;
|
|
if (check_cache_content(test, sorcery, cache, in_cache, 2, not_in_cache, 1)) {
|
|
goto cleanup;
|
|
}
|
|
usleep(1000);
|
|
|
|
sorcery_memory_cache_delete(sorcery, cache, charlie);
|
|
in_cache[0] = "bob";
|
|
in_cache[1] = NULL;
|
|
not_in_cache[0] = "alice";
|
|
not_in_cache[1] = "charlie";
|
|
if (check_cache_content(test, sorcery, cache, in_cache, 1, not_in_cache, 2)) {
|
|
goto cleanup;
|
|
}
|
|
usleep(1000);
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, alice);
|
|
in_cache[0] = "bob";
|
|
in_cache[1] = "alice";
|
|
not_in_cache[0] = "charlie";
|
|
not_in_cache[1] = NULL;
|
|
if (check_cache_content(test, sorcery, cache, in_cache, 2, not_in_cache, 1)) {
|
|
goto cleanup;
|
|
}
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (cache) {
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(expiration)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct sorcery_memory_cache *cache = NULL;
|
|
int i;
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "expiration";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Add objects to a cache configured with maximum lifetime, confirm they are removed";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Creates a memory cache with a maximum object lifetime of 5 seconds\n"
|
|
"\t* Pushes 10 objects into the memory cache\n"
|
|
"\t* Waits (up to) 10 seconds for expiration to occur\n"
|
|
"\t* Confirms that the objects have been removed from the cache";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
cache = sorcery_memory_cache_open("object_lifetime_maximum=5");
|
|
if (!cache) {
|
|
ast_test_status_update(test, "Failed to create a sorcery memory cache using default options\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery = alloc_and_initialize_sorcery();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create a test sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
cache->cache_notify = 1;
|
|
ast_mutex_init(&cache->lock);
|
|
ast_cond_init(&cache->cond, NULL);
|
|
|
|
for (i = 0; i < 5; ++i) {
|
|
char uuid[AST_UUID_STR_LEN];
|
|
void *object;
|
|
|
|
object = ast_sorcery_alloc(sorcery, "test", ast_uuid_generate_str(uuid, sizeof(uuid)));
|
|
if (!object) {
|
|
ast_test_status_update(test, "Failed to allocate test object for expiration\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sorcery_memory_cache_create(sorcery, cache, object);
|
|
|
|
ao2_ref(object, -1);
|
|
}
|
|
|
|
ast_mutex_lock(&cache->lock);
|
|
while (!cache->cache_completed) {
|
|
struct timeval start = ast_tvnow();
|
|
struct timespec end = {
|
|
.tv_sec = start.tv_sec + 10,
|
|
.tv_nsec = start.tv_usec * 1000,
|
|
};
|
|
|
|
if (ast_cond_timedwait(&cache->cond, &cache->lock, &end) == ETIMEDOUT) {
|
|
break;
|
|
}
|
|
}
|
|
ast_mutex_unlock(&cache->lock);
|
|
|
|
if (ao2_container_count(cache->objects)) {
|
|
ast_test_status_update(test, "Objects placed into the memory cache did not expire and get removed\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (cache) {
|
|
if (cache->cache_notify) {
|
|
ast_cond_destroy(&cache->cond);
|
|
ast_mutex_destroy(&cache->lock);
|
|
}
|
|
sorcery_memory_cache_close(cache);
|
|
}
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/*!
|
|
* \brief Backend data that the mock sorcery wizard uses to create objects
|
|
*/
|
|
static struct backend_data {
|
|
/*! An arbitrary data field */
|
|
int salt;
|
|
/*! Another arbitrary data field */
|
|
int pepper;
|
|
/*! Indicates whether the backend has data */
|
|
int exists;
|
|
} *real_backend_data;
|
|
|
|
/*!
|
|
* \brief Sorcery object created based on backend data
|
|
*/
|
|
struct test_data {
|
|
SORCERY_OBJECT(details);
|
|
/*! Mirrors the backend data's salt field */
|
|
int salt;
|
|
/*! Mirrors the backend data's pepper field */
|
|
int pepper;
|
|
};
|
|
|
|
/*!
|
|
* \brief Allocation callback for test_data sorcery object
|
|
*/
|
|
static void *test_data_alloc(const char *id) {
|
|
return ast_sorcery_generic_alloc(sizeof(struct test_data), NULL);
|
|
}
|
|
|
|
/*!
|
|
* \brief Callback for retrieving sorcery object by ID
|
|
*
|
|
* The mock wizard uses the \ref real_backend_data in order to construct
|
|
* objects. If the backend data is "nonexisent" then no object is returned.
|
|
* Otherwise, an object is created that has the backend data's salt and
|
|
* pepper values copied.
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data Unused
|
|
* \param type The object type. Will always be "test".
|
|
* \param id The object id. Will always be "test".
|
|
*
|
|
* \retval NULL Backend data does not exist
|
|
* \retval non-NULL An object representing the backend data
|
|
*/
|
|
static void *mock_retrieve_id(const struct ast_sorcery *sorcery, void *data,
|
|
const char *type, const char *id)
|
|
{
|
|
struct test_data *b_data;
|
|
|
|
if (!real_backend_data->exists) {
|
|
return NULL;
|
|
}
|
|
|
|
b_data = ast_sorcery_alloc(sorcery, type, id);
|
|
if (!b_data) {
|
|
return NULL;
|
|
}
|
|
|
|
b_data->salt = real_backend_data->salt;
|
|
b_data->pepper = real_backend_data->pepper;
|
|
return b_data;
|
|
}
|
|
|
|
/*!
|
|
* \brief Callback for retrieving multiple sorcery objects
|
|
*
|
|
* The mock wizard uses the \ref real_backend_data in order to construct
|
|
* objects. If the backend data is "nonexisent" then no object is returned.
|
|
* Otherwise, the number of objects matching the exists value will be returned.
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param data Unused
|
|
* \param type The object type. Will always be "test".
|
|
* \param objects Container to place objects into.
|
|
* \param fields Fields to search for.
|
|
*/
|
|
static void mock_retrieve_multiple(const struct ast_sorcery *sorcery, void *data,
|
|
const char *type, struct ao2_container *objects, const struct ast_variable *fields)
|
|
{
|
|
int i;
|
|
|
|
if (fields) {
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < real_backend_data->exists; ++i) {
|
|
char uuid[AST_UUID_STR_LEN];
|
|
struct test_data *b_data;
|
|
|
|
b_data = ast_sorcery_alloc(sorcery, type, ast_uuid_generate_str(uuid, sizeof(uuid)));
|
|
if (!b_data) {
|
|
continue;
|
|
}
|
|
|
|
b_data->salt = real_backend_data->salt;
|
|
b_data->pepper = real_backend_data->pepper;
|
|
|
|
ao2_link(objects, b_data);
|
|
ao2_ref(b_data, -1);
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \brief A mock sorcery wizard used for the stale test
|
|
*/
|
|
static struct ast_sorcery_wizard mock_wizard = {
|
|
.name = "mock",
|
|
.retrieve_id = mock_retrieve_id,
|
|
.retrieve_multiple = mock_retrieve_multiple,
|
|
};
|
|
|
|
/*!
|
|
* \brief Wait for the cache to be updated after a stale object is retrieved.
|
|
*
|
|
* Since the cache does not know what type of objects it is dealing with, and
|
|
* since we do not have the internals of the cache, the only way to make this
|
|
* determination is to continuously retrieve an object from the cache until
|
|
* we retrieve a different object than we had previously retrieved.
|
|
*
|
|
* \param sorcery The sorcery instance
|
|
* \param previous_object The object we had previously retrieved from the cache
|
|
* \param[out] new_object The new object we retrieve from the cache
|
|
*
|
|
* \retval 0 Successfully retrieved a new object from the cache
|
|
* \retval non-zero Failed to retrieve a new object from the cache
|
|
*/
|
|
static int wait_for_cache_update(const struct ast_sorcery *sorcery,
|
|
void *previous_object, struct test_data **new_object)
|
|
{
|
|
struct timeval start = ast_tvnow();
|
|
|
|
while (ast_remaining_ms(start, 5000) > 0) {
|
|
void *object;
|
|
|
|
object = ast_sorcery_retrieve_by_id(sorcery, "test", "test");
|
|
if (object != previous_object) {
|
|
*new_object = object;
|
|
return 0;
|
|
}
|
|
ao2_cleanup(object);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
AST_TEST_DEFINE(stale)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct test_data *backend_object;
|
|
struct backend_data iterations[] = {
|
|
{ .salt = 1, .pepper = 2, .exists = 1 },
|
|
{ .salt = 568729, .pepper = -234123, .exists = 1 },
|
|
{ .salt = 0, .pepper = 0, .exists = 0 },
|
|
};
|
|
struct backend_data initial = {
|
|
.salt = 0,
|
|
.pepper = 0,
|
|
.exists = 1,
|
|
};
|
|
int i;
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "stale";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Ensure that stale objects are replaced with updated objects";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Create a sorcery instance with two wizards"
|
|
"\t\t* The first is a memory cache that marks items stale after 3 seconds\n"
|
|
"\t\t* The second is a mock of a back-end\n"
|
|
"\t* Pre-populates the cache by retrieving some initial data from the backend.\n"
|
|
"\t* Performs iterations of the following:\n"
|
|
"\t\t* Update backend data with new values\n"
|
|
"\t\t* Retrieve item from the cache\n"
|
|
"\t\t* Ensure the retrieved item does not have the new backend values\n"
|
|
"\t\t* Wait for cached object to become stale\n"
|
|
"\t\t* Retrieve the stale cached object\n"
|
|
"\t\t* Ensure that the stale object retrieved is the same as the fresh one from earlier\n"
|
|
"\t\t* Wait for the cache to update with new data\n"
|
|
"\t\t* Ensure that new data in the cache matches backend data";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
ast_sorcery_wizard_register(&mock_wizard);
|
|
|
|
sorcery = ast_sorcery_open();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
ast_sorcery_apply_wizard_mapping(sorcery, "test", "memory_cache",
|
|
"object_lifetime_stale=3", 1);
|
|
ast_sorcery_apply_wizard_mapping(sorcery, "test", "mock", NULL, 0);
|
|
ast_sorcery_internal_object_register(sorcery, "test", test_data_alloc, NULL, NULL);
|
|
|
|
/* Prepopulate the cache */
|
|
real_backend_data = &initial;
|
|
|
|
backend_object = ast_sorcery_retrieve_by_id(sorcery, "test", "test");
|
|
if (!backend_object) {
|
|
ast_test_status_update(test, "Unable to retrieve backend data and populate the cache\n");
|
|
goto cleanup;
|
|
}
|
|
ao2_ref(backend_object, -1);
|
|
|
|
for (i = 0; i < ARRAY_LEN(iterations); ++i) {
|
|
RAII_VAR(struct test_data *, cache_fresh, NULL, ao2_cleanup);
|
|
RAII_VAR(struct test_data *, cache_stale, NULL, ao2_cleanup);
|
|
RAII_VAR(struct test_data *, cache_new, NULL, ao2_cleanup);
|
|
|
|
real_backend_data = &iterations[i];
|
|
|
|
ast_test_status_update(test, "Begininning iteration %d\n", i);
|
|
|
|
cache_fresh = ast_sorcery_retrieve_by_id(sorcery, "test", "test");
|
|
if (!cache_fresh) {
|
|
ast_test_status_update(test, "Unable to retrieve fresh cached object\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (cache_fresh->salt == iterations[i].salt || cache_fresh->pepper == iterations[i].pepper) {
|
|
ast_test_status_update(test, "Fresh cached object has unexpected values. Did we hit the backend?\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
sleep(5);
|
|
|
|
cache_stale = ast_sorcery_retrieve_by_id(sorcery, "test", "test");
|
|
if (!cache_stale) {
|
|
ast_test_status_update(test, "Unable to retrieve stale cached object\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (cache_stale != cache_fresh) {
|
|
ast_test_status_update(test, "Stale cache hit retrieved different object than fresh cache hit\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (wait_for_cache_update(sorcery, cache_stale, &cache_new)) {
|
|
ast_test_status_update(test, "Cache was not updated\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (iterations[i].exists) {
|
|
if (!cache_new) {
|
|
ast_test_status_update(test, "Failed to retrieve item from cache when there should be one present\n");
|
|
goto cleanup;
|
|
} else if (cache_new->salt != iterations[i].salt ||
|
|
cache_new->pepper != iterations[i].pepper) {
|
|
ast_test_status_update(test, "New cached item has unexpected values\n");
|
|
goto cleanup;
|
|
}
|
|
} else if (cache_new) {
|
|
ast_test_status_update(test, "Retrieved a cached item when there should not have been one present\n");
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
ast_sorcery_wizard_unregister(&mock_wizard);
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(full_backend_cache_expiration)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct backend_data initial = {
|
|
.salt = 0,
|
|
.pepper = 0,
|
|
.exists = 4,
|
|
};
|
|
struct ao2_container *objects;
|
|
ast_mutex_t lock;
|
|
ast_cond_t cond;
|
|
struct timeval start;
|
|
struct timespec end;
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "full_backend_cache_expiration";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Ensure that the full backend cache actually caches the backend";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Create a sorcery instance with two wizards"
|
|
"\t\t* The first is a memory cache that expires objects after 3 seconds and does full backend caching\n"
|
|
"\t\t* The second is a mock of a back-end\n"
|
|
"\t* Populates the cache by requesting all objects which returns 4.\n"
|
|
"\t* Updates the backend to contain a different number of objects, 8.\n"
|
|
"\t* Requests all objects and confirms the number returned is only 4.\n"
|
|
"\t* Wait for cached objects to expire.\n"
|
|
"\t* Requests all objects and confirms the number returned is 8.";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
ast_sorcery_wizard_register(&mock_wizard);
|
|
|
|
sorcery = ast_sorcery_open();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
ast_sorcery_apply_wizard_mapping(sorcery, "test", "memory_cache",
|
|
"object_lifetime_maximum=3,full_backend_cache=yes", 1);
|
|
ast_sorcery_apply_wizard_mapping(sorcery, "test", "mock", NULL, 0);
|
|
ast_sorcery_internal_object_register(sorcery, "test", test_data_alloc, NULL, NULL);
|
|
ast_sorcery_object_field_register_nodoc(sorcery, "test", "salt", "0", OPT_UINT_T, 0, FLDSET(struct test_data, salt));
|
|
ast_sorcery_object_field_register_nodoc(sorcery, "test", "pepper", "0", OPT_UINT_T, 0, FLDSET(struct test_data, pepper));
|
|
|
|
/* Prepopulate the cache */
|
|
real_backend_data = &initial;
|
|
|
|
/* Get all current objects in the backend */
|
|
objects = ast_sorcery_retrieve_by_fields(sorcery, "test", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
if (!objects) {
|
|
ast_test_status_update(test, "Unable to retrieve all objects in backend and populate cache\n");
|
|
goto cleanup;
|
|
}
|
|
ao2_ref(objects, -1);
|
|
|
|
/* Update the backend to have a different number of objects */
|
|
initial.exists = 8;
|
|
|
|
/* Get all current objects in the backend */
|
|
objects = ast_sorcery_retrieve_by_fields(sorcery, "test", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
if (!objects) {
|
|
ast_test_status_update(test, "Unable to retrieve all objects in backend and populate cache\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(objects) == initial.exists) {
|
|
ast_test_status_update(test, "Number of objects returned is of the current backend and not the cache\n");
|
|
ao2_ref(objects, -1);
|
|
goto cleanup;
|
|
}
|
|
|
|
ao2_ref(objects, -1);
|
|
|
|
ast_mutex_init(&lock);
|
|
ast_cond_init(&cond, NULL);
|
|
|
|
start = ast_tvnow();
|
|
end.tv_sec = start.tv_sec + 5;
|
|
end.tv_nsec = start.tv_usec * 1000;
|
|
|
|
ast_mutex_lock(&lock);
|
|
while (ast_cond_timedwait(&cond, &lock, &end) != ETIMEDOUT) {
|
|
}
|
|
ast_mutex_unlock(&lock);
|
|
|
|
ast_mutex_destroy(&lock);
|
|
ast_cond_destroy(&cond);
|
|
|
|
/* Get all current objects in the backend */
|
|
objects = ast_sorcery_retrieve_by_fields(sorcery, "test", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
if (!objects) {
|
|
ast_test_status_update(test, "Unable to retrieve all objects in backend and populate cache\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(objects) != initial.exists) {
|
|
ast_test_status_update(test, "Number of objects returned is NOT of the current backend when it should be\n");
|
|
ao2_ref(objects, -1);
|
|
goto cleanup;
|
|
}
|
|
|
|
ao2_ref(objects, -1);
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
ast_sorcery_wizard_unregister(&mock_wizard);
|
|
return res;
|
|
}
|
|
|
|
AST_TEST_DEFINE(full_backend_cache_stale)
|
|
{
|
|
int res = AST_TEST_FAIL;
|
|
struct ast_sorcery *sorcery = NULL;
|
|
struct backend_data initial = {
|
|
.salt = 0,
|
|
.pepper = 0,
|
|
.exists = 4,
|
|
};
|
|
struct ao2_container *objects;
|
|
ast_mutex_t lock;
|
|
ast_cond_t cond;
|
|
struct timeval start;
|
|
struct timespec end;
|
|
|
|
switch (cmd) {
|
|
case TEST_INIT:
|
|
info->name = "full_backend_cache_stale";
|
|
info->category = "/res/res_sorcery_memory_cache/";
|
|
info->summary = "Ensure that the full backend cache works with staleness";
|
|
info->description = "This test performs the following:\n"
|
|
"\t* Create a sorcery instance with two wizards"
|
|
"\t\t* The first is a memory cache that stales objects after 1 second and does full backend caching\n"
|
|
"\t\t* The second is a mock of a back-end\n"
|
|
"\t* Populates the cache by requesting all objects which returns 4.\n"
|
|
"\t* Wait for objects to go stale.\n"
|
|
"\t* Updates the backend to contain a different number of objects, 8.\""
|
|
"\t* Requests all objects and confirms the number returned is only 4.\n"
|
|
"\t* Wait for objects to be refreshed from backend.\n"
|
|
"\t* Requests all objects and confirms the number returned is 8.";
|
|
return AST_TEST_NOT_RUN;
|
|
case TEST_EXECUTE:
|
|
break;
|
|
}
|
|
|
|
ast_sorcery_wizard_register(&mock_wizard);
|
|
|
|
ast_mutex_init(&lock);
|
|
ast_cond_init(&cond, NULL);
|
|
|
|
sorcery = ast_sorcery_open();
|
|
if (!sorcery) {
|
|
ast_test_status_update(test, "Failed to create sorcery instance\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
ast_sorcery_apply_wizard_mapping(sorcery, "test", "memory_cache",
|
|
"object_lifetime_stale=1,full_backend_cache=yes", 1);
|
|
ast_sorcery_apply_wizard_mapping(sorcery, "test", "mock", NULL, 0);
|
|
ast_sorcery_internal_object_register(sorcery, "test", test_data_alloc, NULL, NULL);
|
|
ast_sorcery_object_field_register_nodoc(sorcery, "test", "salt", "0", OPT_UINT_T, 0, FLDSET(struct test_data, salt));
|
|
ast_sorcery_object_field_register_nodoc(sorcery, "test", "pepper", "0", OPT_UINT_T, 0, FLDSET(struct test_data, pepper));
|
|
|
|
/* Prepopulate the cache */
|
|
real_backend_data = &initial;
|
|
|
|
/* Get all current objects in the backend */
|
|
objects = ast_sorcery_retrieve_by_fields(sorcery, "test", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
if (!objects) {
|
|
ast_test_status_update(test, "Unable to retrieve all objects in backend and populate cache\n");
|
|
goto cleanup;
|
|
}
|
|
ao2_ref(objects, -1);
|
|
|
|
start = ast_tvnow();
|
|
end.tv_sec = start.tv_sec + 5;
|
|
end.tv_nsec = start.tv_usec * 1000;
|
|
|
|
ast_mutex_lock(&lock);
|
|
while (ast_cond_timedwait(&cond, &lock, &end) != ETIMEDOUT) {
|
|
}
|
|
ast_mutex_unlock(&lock);
|
|
|
|
initial.exists = 8;
|
|
|
|
/* Get all current objects in the backend */
|
|
objects = ast_sorcery_retrieve_by_fields(sorcery, "test", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
if (!objects) {
|
|
ast_test_status_update(test, "Unable to retrieve all objects in backend and populate cache\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(objects) == initial.exists) {
|
|
ast_test_status_update(test, "Number of objects returned is of the backend and not the cache\n");
|
|
ao2_ref(objects, -1);
|
|
goto cleanup;
|
|
}
|
|
|
|
ao2_ref(objects, -1);
|
|
|
|
start = ast_tvnow();
|
|
end.tv_sec = start.tv_sec + 5;
|
|
end.tv_nsec = start.tv_usec * 1000;
|
|
|
|
ast_mutex_lock(&lock);
|
|
while (ast_cond_timedwait(&cond, &lock, &end) != ETIMEDOUT) {
|
|
}
|
|
ast_mutex_unlock(&lock);
|
|
|
|
/* Get all current objects in the backend */
|
|
objects = ast_sorcery_retrieve_by_fields(sorcery, "test", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
|
|
if (!objects) {
|
|
ast_test_status_update(test, "Unable to retrieve all objects in backend and populate cache\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ao2_container_count(objects) != initial.exists) {
|
|
ast_test_status_update(test, "Number of objects returned is not of backend\n");
|
|
ao2_ref(objects, -1);
|
|
goto cleanup;
|
|
}
|
|
|
|
ao2_ref(objects, -1);
|
|
|
|
start = ast_tvnow();
|
|
end.tv_sec = start.tv_sec + 5;
|
|
end.tv_nsec = start.tv_usec * 1000;
|
|
|
|
ast_mutex_lock(&lock);
|
|
while (ast_cond_timedwait(&cond, &lock, &end) != ETIMEDOUT) {
|
|
}
|
|
ast_mutex_unlock(&lock);
|
|
|
|
res = AST_TEST_PASS;
|
|
|
|
cleanup:
|
|
if (sorcery) {
|
|
ast_sorcery_unref(sorcery);
|
|
}
|
|
ast_sorcery_wizard_unregister(&mock_wizard);
|
|
ast_mutex_destroy(&lock);
|
|
ast_cond_destroy(&cond);
|
|
return res;
|
|
}
|
|
|
|
#endif
|
|
|
|
static int unload_module(void)
|
|
{
|
|
AST_TEST_UNREGISTER(open_with_valid_options);
|
|
AST_TEST_UNREGISTER(open_with_invalid_options);
|
|
AST_TEST_UNREGISTER(create_and_retrieve);
|
|
AST_TEST_UNREGISTER(update);
|
|
AST_TEST_UNREGISTER(delete);
|
|
AST_TEST_UNREGISTER(maximum_objects);
|
|
AST_TEST_UNREGISTER(expiration);
|
|
AST_TEST_UNREGISTER(stale);
|
|
AST_TEST_UNREGISTER(full_backend_cache_expiration);
|
|
AST_TEST_UNREGISTER(full_backend_cache_stale);
|
|
|
|
ast_manager_unregister("SorceryMemoryCacheExpireObject");
|
|
ast_manager_unregister("SorceryMemoryCacheExpire");
|
|
ast_manager_unregister("SorceryMemoryCacheStaleObject");
|
|
ast_manager_unregister("SorceryMemoryCacheStale");
|
|
ast_manager_unregister("SorceryMemoryCachePopulate");
|
|
|
|
ast_cli_unregister_multiple(cli_memory_cache, ARRAY_LEN(cli_memory_cache));
|
|
|
|
ast_sorcery_wizard_unregister(&memory_cache_object_wizard);
|
|
|
|
/*
|
|
* XXX There is the potential to leak memory if there are pending
|
|
* next-cache-expiration and stale-cache-update tasks in the scheduler.
|
|
*/
|
|
if (sched) {
|
|
ast_sched_context_destroy(sched);
|
|
sched = NULL;
|
|
}
|
|
|
|
ao2_cleanup(caches);
|
|
caches = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
int res;
|
|
|
|
caches = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
|
|
CACHES_CONTAINER_BUCKET_SIZE, sorcery_memory_cache_hash, NULL,
|
|
sorcery_memory_cache_cmp);
|
|
if (!caches) {
|
|
ast_log(LOG_ERROR, "Failed to create container for configured caches\n");
|
|
unload_module();
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
sched = ast_sched_context_create();
|
|
if (!sched) {
|
|
ast_log(LOG_ERROR, "Failed to create scheduler for cache management\n");
|
|
unload_module();
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
if (ast_sched_start_thread(sched)) {
|
|
ast_log(LOG_ERROR, "Failed to create scheduler thread for cache management\n");
|
|
unload_module();
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
if (ast_sorcery_wizard_register(&memory_cache_object_wizard)) {
|
|
unload_module();
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
res = ast_cli_register_multiple(cli_memory_cache, ARRAY_LEN(cli_memory_cache));
|
|
res |= ast_manager_register_xml("SorceryMemoryCacheExpireObject", EVENT_FLAG_SYSTEM, sorcery_memory_cache_ami_expire_object);
|
|
res |= ast_manager_register_xml("SorceryMemoryCacheExpire", EVENT_FLAG_SYSTEM, sorcery_memory_cache_ami_expire);
|
|
res |= ast_manager_register_xml("SorceryMemoryCacheStaleObject", EVENT_FLAG_SYSTEM, sorcery_memory_cache_ami_stale_object);
|
|
res |= ast_manager_register_xml("SorceryMemoryCacheStale", EVENT_FLAG_SYSTEM, sorcery_memory_cache_ami_stale);
|
|
res |= ast_manager_register_xml("SorceryMemoryCachePopulate", EVENT_FLAG_SYSTEM, sorcery_memory_cache_ami_populate);
|
|
|
|
if (res) {
|
|
unload_module();
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
/* This causes the stale unit test to execute last, so if a sorcery instance persists
|
|
* longer than expected subsequent unit tests don't fail when setting it up.
|
|
*/
|
|
AST_TEST_REGISTER(stale);
|
|
AST_TEST_REGISTER(open_with_valid_options);
|
|
AST_TEST_REGISTER(open_with_invalid_options);
|
|
AST_TEST_REGISTER(create_and_retrieve);
|
|
AST_TEST_REGISTER(update);
|
|
AST_TEST_REGISTER(delete);
|
|
AST_TEST_REGISTER(maximum_objects);
|
|
AST_TEST_REGISTER(expiration);
|
|
AST_TEST_REGISTER(full_backend_cache_expiration);
|
|
AST_TEST_REGISTER(full_backend_cache_stale);
|
|
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS | AST_MODFLAG_LOAD_ORDER, "Sorcery Memory Cache Object Wizard",
|
|
.support_level = AST_MODULE_SUPPORT_CORE,
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.load_pri = AST_MODPRI_REALTIME_DRIVER,
|
|
);
|