res_sorcery_memory.c File Reference

Sorcery In-Memory Object Wizard. More...

#include "asterisk.h"
#include <regex.h>
#include "asterisk/module.h"
#include "asterisk/sorcery.h"
#include "asterisk/astobj2.h"

Include dependency graph for res_sorcery_memory.c:

Go to the source code of this file.

Data Structures
struct	sorcery_memory_fields_cmp_params
	Structure used for fields comparison. More...

Macros
#define	OBJECT_BUCKETS   53
	Number of buckets for sorcery objects. More...

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
struct ast_module *	AST_MODULE_SELF_SYM (void)
static int	load_module (void)
static void	sorcery_memory_close (void *data)
static int	sorcery_memory_cmp (void *obj, void *arg, int flags)
	Comparator function for sorcery objects. More...
static int	sorcery_memory_create (const struct ast_sorcery *sorcery, void *data, void *object)
static int	sorcery_memory_delete (const struct ast_sorcery *sorcery, void *data, void *object)
static int	sorcery_memory_fields_cmp (void *obj, void *arg, int flags)
static int	sorcery_memory_hash (const void *obj, const int flags)
	Hashing function for sorcery objects. More...
static void *	sorcery_memory_open (const char *data)
static void *	sorcery_memory_retrieve_fields (const struct ast_sorcery *sorcery, void *data, const char *type, const struct ast_variable *fields)
static void *	sorcery_memory_retrieve_id (const struct ast_sorcery *sorcery, void *data, const char *type, const char *id)
static void	sorcery_memory_retrieve_multiple (const struct ast_sorcery *sorcery, void *data, const char *type, struct ao2_container *objects, const struct ast_variable *fields)
static void	sorcery_memory_retrieve_prefix (const struct ast_sorcery *sorcery, void *data, const char *type, struct ao2_container *objects, const char *prefix, const size_t prefix_len)
static void	sorcery_memory_retrieve_regex (const struct ast_sorcery *sorcery, void *data, const char *type, struct ao2_container *objects, const char *regex)
static int	sorcery_memory_update (const struct ast_sorcery *sorcery, void *data, void *object)
static int	unload_module (void)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_GLOBAL_SYMBOLS | AST_MODFLAG_LOAD_ORDER , .description = "Sorcery In-Memory Object Wizard" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_REALTIME_DRIVER, }
static const struct ast_module_info *	ast_module_info = &__mod_info
static struct ast_sorcery_wizard	memory_object_wizard

Detailed Description

Sorcery In-Memory Object Wizard.

Author

Joshua Colp jcolp.nosp@m.@dig.nosp@m.ium.c.nosp@m.om

Definition in file res_sorcery_memory.c.

Macro Definition Documentation

OBJECT_BUCKETS

#define OBJECT_BUCKETS   53

Number of buckets for sorcery objects.

Definition at line 40 of file res_sorcery_memory.c.

Function Documentation

__reg_module()

static void __reg_module ( void  )

static

Definition at line 282 of file res_sorcery_memory.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 282 of file res_sorcery_memory.c.

AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM

(

void

)

Definition at line 282 of file res_sorcery_memory.c.

load_module()

static int load_module ( void  )

static

Definition at line 262 of file res_sorcery_memory.c.

{
    if (ast_sorcery_wizard_register(&memory_object_wizard)) {
        return AST_MODULE_LOAD_DECLINE;
    }
 
    return AST_MODULE_LOAD_SUCCESS;
}

References AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, ast_sorcery_wizard_register, and memory_object_wizard.

sorcery_memory_close()

static void sorcery_memory_close ( void *  data )

static

Definition at line 257 of file res_sorcery_memory.c.

{
    ao2_ref(data, -1);
}

References ao2_ref.

sorcery_memory_cmp()

static int sorcery_memory_cmp ( void *  obj, void *  arg, int  flags  )

static

Comparator function for sorcery objects.

Definition at line 98 of file res_sorcery_memory.c.

{
    const char *id = arg;
 
    return !strcmp(ast_sorcery_object_get_id(obj), flags & OBJ_KEY ? id : ast_sorcery_object_get_id(arg)) ? CMP_MATCH | CMP_STOP : 0;
}

References ast_sorcery_object_get_id(), CMP_MATCH, CMP_STOP, and OBJ_KEY.

Referenced by sorcery_memory_open().

sorcery_memory_create()

static int sorcery_memory_create ( const struct ast_sorcery *  sorcery, void *  data, void *  object  )

static

Definition at line 105 of file res_sorcery_memory.c.

{
    void *existing;
 
    ao2_lock(data);
 
    existing = ao2_find(data, ast_sorcery_object_get_id(object), OBJ_KEY | OBJ_NOLOCK);
    if (existing) {
        ao2_ref(existing, -1);
        ao2_unlock(data);
        return -1;
    }
 
    ao2_link_flags(data, object, OBJ_NOLOCK);
 
    ao2_unlock(data);
 
    return 0;
}

References ao2_find, ao2_link_flags, ao2_lock, ao2_ref, ao2_unlock, ast_sorcery_object_get_id(), OBJ_KEY, and OBJ_NOLOCK.

sorcery_memory_delete()

static int sorcery_memory_delete ( const struct ast_sorcery *  sorcery, void *  data, void *  object  )

static

Definition at line 244 of file res_sorcery_memory.c.

{
    RAII_VAR(void *, existing, ao2_find(data, ast_sorcery_object_get_id(object), OBJ_KEY | OBJ_UNLINK), ao2_cleanup);
 
    return existing ? 0 : -1;
}

References ao2_cleanup, ao2_find, ast_sorcery_object_get_id(), OBJ_KEY, OBJ_UNLINK, and RAII_VAR.

sorcery_memory_fields_cmp()

static int sorcery_memory_fields_cmp ( void *  obj, void *  arg, int  flags  )

static

Definition at line 125 of file res_sorcery_memory.c.

{
    const struct sorcery_memory_fields_cmp_params *params = arg;
    RAII_VAR(struct ast_variable *, objset, 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(obj), 0, NULL, 0)) {
            ao2_link(params->container, obj);
        }
        return 0;
    } else if (params->prefix) {
        if (!strncmp(params->prefix, ast_sorcery_object_get_id(obj), params->prefix_len)) {
            ao2_link(params->container, obj);
        }
        return 0;
    } else if (params->fields &&
        (!(objset = ast_sorcery_objectset_create(params->sorcery, obj)) ||
         (!ast_variable_lists_match(objset, 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, obj);
 
        /* 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;
    }
}

References ao2_link, ast_sorcery_object_get_id(), ast_sorcery_objectset_create, ast_variable_lists_match(), ast_variables_destroy(), CMP_MATCH, CMP_STOP, sorcery_memory_fields_cmp_params::container, sorcery_memory_fields_cmp_params::fields, NULL, sorcery_memory_fields_cmp_params::prefix, sorcery_memory_fields_cmp_params::prefix_len, RAII_VAR, sorcery_memory_fields_cmp_params::regex, and sorcery_memory_fields_cmp_params::sorcery.

Referenced by sorcery_memory_retrieve_fields(), sorcery_memory_retrieve_multiple(), sorcery_memory_retrieve_prefix(), and sorcery_memory_retrieve_regex().

sorcery_memory_hash()

static int sorcery_memory_hash ( const void *  obj, const int  flags  )

static

Hashing function for sorcery objects.

Definition at line 90 of file res_sorcery_memory.c.

{
    const char *id = obj;
 
    return ast_str_hash(flags & OBJ_KEY ? id : ast_sorcery_object_get_id(obj));
}

References ast_sorcery_object_get_id(), ast_str_hash(), and OBJ_KEY.

Referenced by sorcery_memory_open().

sorcery_memory_open()

static void * sorcery_memory_open ( const char *  data )

static

Definition at line 251 of file res_sorcery_memory.c.

{
    return ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, OBJECT_BUCKETS,
        sorcery_memory_hash, NULL, sorcery_memory_cmp);
}

References AO2_ALLOC_OPT_LOCK_MUTEX, ao2_container_alloc_hash, NULL, OBJECT_BUCKETS, sorcery_memory_cmp(), and sorcery_memory_hash().

sorcery_memory_retrieve_fields()

static void * sorcery_memory_retrieve_fields ( const struct ast_sorcery *  sorcery, void *  data, const char *  type, const struct ast_variable *  fields  )

static

Definition at line 161 of file res_sorcery_memory.c.

{
    struct sorcery_memory_fields_cmp_params params = {
        .sorcery = sorcery,
        .fields = fields,
        .container = NULL,
    };
 
    /* If no fields are present return nothing, we require *something* */
    if (!fields) {
        return NULL;
    }
 
    return ao2_callback(data, 0, sorcery_memory_fields_cmp, &params);
}

References ao2_callback, sorcery_memory_fields_cmp_params::fields, NULL, sorcery, sorcery_memory_fields_cmp_params::sorcery, and sorcery_memory_fields_cmp().

sorcery_memory_retrieve_id()

static void * sorcery_memory_retrieve_id ( const struct ast_sorcery *  sorcery, void *  data, const char *  type, const char *  id  )

static

Definition at line 177 of file res_sorcery_memory.c.

{
    return ao2_find(data, id, OBJ_KEY);
}

References ao2_find, and OBJ_KEY.

sorcery_memory_retrieve_multiple()

static void sorcery_memory_retrieve_multiple ( const struct ast_sorcery *  sorcery, void *  data, const char *  type, struct ao2_container *  objects, const struct ast_variable *  fields  )

static

Definition at line 182 of file res_sorcery_memory.c.

{
    struct sorcery_memory_fields_cmp_params params = {
        .sorcery = sorcery,
        .fields = fields,
        .container = objects,
    };
 
    ao2_callback(data, 0, sorcery_memory_fields_cmp, &params);
}

References ao2_callback, sorcery_memory_fields_cmp_params::fields, sorcery, sorcery_memory_fields_cmp_params::sorcery, and sorcery_memory_fields_cmp().

sorcery_memory_retrieve_prefix()

static void sorcery_memory_retrieve_prefix ( const struct ast_sorcery *  sorcery, void *  data, const char *  type, struct ao2_container *  objects, const char *  prefix, const size_t  prefix_len  )

static

Definition at line 214 of file res_sorcery_memory.c.

{
    struct sorcery_memory_fields_cmp_params params = {
        .sorcery = sorcery,
        .container = objects,
        .prefix = prefix,
        .prefix_len = prefix_len,
    };
 
    ao2_callback(data, 0, sorcery_memory_fields_cmp, &params);
}

References ao2_callback, prefix, sorcery_memory_fields_cmp_params::prefix_len, sorcery, sorcery_memory_fields_cmp_params::sorcery, and sorcery_memory_fields_cmp().

sorcery_memory_retrieve_regex()

static void sorcery_memory_retrieve_regex ( const struct ast_sorcery *  sorcery, void *  data, const char *  type, struct ao2_container *  objects, const char *  regex  )

static

Definition at line 193 of file res_sorcery_memory.c.

{
    regex_t expression;
    struct sorcery_memory_fields_cmp_params params = {
        .sorcery = sorcery,
        .container = objects,
        .regex = &expression,
    };
 
    if (ast_strlen_zero(regex)) {
        regex = ".";
    }
 
    if (regcomp(&expression, regex, REG_EXTENDED | REG_NOSUB)) {
        return;
    }
 
    ao2_callback(data, 0, sorcery_memory_fields_cmp, &params);
    regfree(&expression);
}

References ao2_callback, ast_strlen_zero(), regex(), sorcery, sorcery_memory_fields_cmp_params::sorcery, and sorcery_memory_fields_cmp().

sorcery_memory_update()

static int sorcery_memory_update ( const struct ast_sorcery *  sorcery, void *  data, void *  object  )

static

Definition at line 226 of file res_sorcery_memory.c.

{
    RAII_VAR(void *, existing, NULL, ao2_cleanup);
 
    ao2_lock(data);
 
    if (!(existing = ao2_find(data, ast_sorcery_object_get_id(object), OBJ_KEY | OBJ_UNLINK))) {
        ao2_unlock(data);
        return -1;
    }
 
    ao2_link(data, object);
 
    ao2_unlock(data);
 
    return 0;
}

References ao2_cleanup, ao2_find, ao2_link, ao2_lock, ao2_unlock, ast_sorcery_object_get_id(), NULL, OBJ_KEY, OBJ_UNLINK, and RAII_VAR.

unload_module()

static int unload_module ( void  )

static

Definition at line 271 of file res_sorcery_memory.c.

{
    ast_sorcery_wizard_unregister(&memory_object_wizard);
    return 0;
}

References ast_sorcery_wizard_unregister(), and memory_object_wizard.

Variable Documentation

__mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_GLOBAL_SYMBOLS | AST_MODFLAG_LOAD_ORDER , .description = "Sorcery In-Memory Object Wizard" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_REALTIME_DRIVER, }

static

Definition at line 282 of file res_sorcery_memory.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 282 of file res_sorcery_memory.c.

memory_object_wizard

struct ast_sorcery_wizard memory_object_wizard

static

Definition at line 54 of file res_sorcery_memory.c.

Referenced by load_module(), and unload_module().