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Last updated: Sat Feb 3 05:01:28 2007

Asterisk developer's documentation :: Codename Pineapple


config.c File Reference


Detailed Description

Configuration File Parser.

Author:
Mark Spencer <markster@digium.com>
Includes the Asterisk Realtime API - ARA See doc/realtime.txt and doc/extconfig.txt

Definition in file config.c.

#include "asterisk.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <sys/stat.h>
#include <glob.h>
#include "asterisk/config.h"
#include "asterisk/cli.h"
#include "asterisk/lock.h"
#include "asterisk/options.h"
#include "asterisk/logger.h"
#include "asterisk/utils.h"
#include "asterisk/channel.h"
#include "asterisk/app.h"

Include dependency graph for config.c:

Go to the source code of this file.

Data Structures

struct  ast_category
struct  ast_comment
struct  ast_config
struct  ast_config_map

Defines

#define AST_INCLUDE_GLOB   1
#define CB_INCR   250
#define COMMENT_END   "--;"
#define COMMENT_META   ';'
#define COMMENT_START   ";--"
#define COMMENT_TAG   '-'
#define MAX_INCLUDE_LEVEL   10
#define MAX_NESTED_COMMENTS   128

Functions

static struct ast_commentALLOC_COMMENT (const char *buffer)
static int append_mapping (char *name, char *driver, char *database, char *table)
void ast_category_append (struct ast_config *config, struct ast_category *category)
char * ast_category_browse (struct ast_config *config, const char *prev)
 Goes through categories.
int ast_category_delete (struct ast_config *cfg, const char *category)
void ast_category_destroy (struct ast_category *cat)
ast_variableast_category_detach_variables (struct ast_category *cat)
int ast_category_exist (const struct ast_config *config, const char *category_name)
 Check for category duplicates.
ast_categoryast_category_get (const struct ast_config *config, const char *category_name)
 Retrieve a category if it exists.
ast_categoryast_category_new (const char *name)
void ast_category_rename (struct ast_category *cat, const char *name)
int ast_check_realtime (const char *family)
 Check if realtime engine is configured for family returns 1 if family is configured in realtime and engine exists.
void ast_config_destroy (struct ast_config *cfg)
 Destroys a config.
int ast_config_engine_deregister (struct ast_config_engine *del)
 Deegister config engine.
int ast_config_engine_register (struct ast_config_engine *new)
 Register config engine.
ast_categoryast_config_get_current_category (const struct ast_config *cfg)
ast_configast_config_internal_load (const char *filename, struct ast_config *cfg, int withcomments)
ast_configast_config_load (const char *filename)
 Load a config file.
ast_configast_config_load_with_comments (const char *filename)
ast_configast_config_new (void)
const char * ast_config_option (struct ast_config *cfg, const char *cat, const char *var)
void ast_config_set_current_category (struct ast_config *cfg, const struct ast_category *cat)
ast_variableast_load_realtime (const char *family,...)
 Retrieve realtime configuration.
ast_variableast_load_realtime_all (const char *family,...)
static struct ast_variableast_load_realtime_helper (const char *family, va_list ap)
ast_configast_load_realtime_multientry (const char *family,...)
 Retrieve realtime configuration.
 AST_MUTEX_DEFINE_STATIC (config_lock)
int ast_update_realtime (const char *family, const char *keyfield, const char *lookup,...)
 Update realtime configuration.
void ast_variable_append (struct ast_category *category, struct ast_variable *variable)
ast_variableast_variable_browse (const struct ast_config *config, const char *category)
 Goes through variables Somewhat similar in intent as the ast_category_browse. List variables of config file category.
int ast_variable_delete (struct ast_category *category, const char *variable, const char *match)
ast_variableast_variable_new (const char *name, const char *value)
const char * ast_variable_retrieve (const struct ast_config *config, const char *category, const char *variable)
 Gets a variable.
int ast_variable_update (struct ast_category *category, const char *variable, const char *value, const char *match)
void ast_variables_destroy (struct ast_variable *v)
 Free variable list.
static struct ast_categorycategory_get (const struct ast_config *config, const char *category_name, int ignored)
static void CB_ADD (char *str)
static void CB_ADD_LEN (char *str, int len)
static void CB_INIT (void)
static void CB_RESET (void)
static void clear_config_maps (void)
static int config_command (int fd, int argc, char **argv)
static struct ast_configconfig_text_file_load (const char *database, const char *table, const char *filename, struct ast_config *cfg, int withcomments)
int config_text_file_save (const char *configfile, const struct ast_config *cfg, const char *generator)
static struct ast_config_enginefind_engine (const char *family, char *database, int dbsiz, char *table, int tabsiz)
 Find realtime engine for realtime family.
static void inherit_category (struct ast_category *new, const struct ast_category *base)
static void LLB_ADD (char *str)
static void move_variables (struct ast_category *old, struct ast_category *new)
static struct ast_categorynext_available_category (struct ast_category *cat)
static int process_text_line (struct ast_config *cfg, struct ast_category **cat, char *buf, int lineno, const char *configfile, int withcomments)
int read_config_maps (void)
int register_config_cli ()
static struct ast_variablevariable_clone (const struct ast_variable *old)

Variables

static struct ast_cli_entry cli_config []
static char * comment_buffer
static int comment_buffer_size
static struct ast_config_engineconfig_engine_list
static struct ast_config_mapconfig_maps
static char * extconfig_conf = "extconfig.conf"
static char * lline_buffer
static int lline_buffer_size
static char show_config_help []
static struct ast_config_engine text_file_engine


Define Documentation

#define AST_INCLUDE_GLOB   1
 

Definition at line 40 of file config.c.

#define CB_INCR   250
 

Definition at line 78 of file config.c.

Referenced by CB_ADD(), CB_ADD_LEN(), CB_INIT(), and LLB_ADD().

#define COMMENT_END   "--;"
 

Definition at line 59 of file config.c.

#define COMMENT_META   ';'
 

Definition at line 60 of file config.c.

Referenced by config_text_file_load().

#define COMMENT_START   ";--"
 

Definition at line 58 of file config.c.

#define COMMENT_TAG   '-'
 

Definition at line 61 of file config.c.

Referenced by config_text_file_load().

#define MAX_INCLUDE_LEVEL   10
 

Definition at line 167 of file config.c.

Referenced by ast_config_new().

#define MAX_NESTED_COMMENTS   128
 

Definition at line 57 of file config.c.

Referenced by config_text_file_load().


Function Documentation

static struct ast_comment* ALLOC_COMMENT const char *  buffer  )  [static]
 

Definition at line 147 of file config.c.

References ast_calloc, and ast_comment::cmt.

Referenced by process_text_line().

00148 { 
00149    struct ast_comment *x = ast_calloc(1,sizeof(struct ast_comment)+strlen(buffer)+1);
00150    strcpy(x->cmt, buffer);
00151    return x;
00152 }

static int append_mapping char *  name,
char *  driver,
char *  database,
char *  table
[static]
 

Definition at line 1067 of file config.c.

References ast_calloc, ast_verbose(), config_maps, map, option_verbose, and VERBOSE_PREFIX_2.

01068 {
01069    struct ast_config_map *map;
01070    int length;
01071 
01072    length = sizeof(*map);
01073    length += strlen(name) + 1;
01074    length += strlen(driver) + 1;
01075    length += strlen(database) + 1;
01076    if (table)
01077       length += strlen(table) + 1;
01078 
01079    if (!(map = ast_calloc(1, length)))
01080       return -1;
01081 
01082    map->name = map->stuff;
01083    strcpy(map->name, name);
01084    map->driver = map->name + strlen(map->name) + 1;
01085    strcpy(map->driver, driver);
01086    map->database = map->driver + strlen(map->driver) + 1;
01087    strcpy(map->database, database);
01088    if (table) {
01089       map->table = map->database + strlen(map->database) + 1;
01090       strcpy(map->table, table);
01091    }
01092    map->next = config_maps;
01093 
01094    if (option_verbose > 1)
01095       ast_verbose(VERBOSE_PREFIX_2 "Binding %s to %s/%s/%s\n",
01096              map->name, map->driver, map->database, map->table ? map->table : map->name);
01097 
01098    config_maps = map;
01099    return 0;
01100 }

void ast_category_append struct ast_config config,
struct ast_category category
 

Definition at line 339 of file config.c.

References config, and ast_category::include_level.

Referenced by config_odbc(), config_pgsql(), handle_updates(), process_text_line(), and realtime_multi_odbc().

00340 {
00341    if (config->last)
00342       config->last->next = category;
00343    else
00344       config->root = category;
00345    category->include_level = config->include_level;
00346    config->last = category;
00347    config->current = category;
00348 }

char* ast_category_browse struct ast_config config,
const char *  prev
 

Goes through categories.

Parameters:
config Which config structure you wish to "browse"
prev A pointer to a previous category. This funtion is kind of non-intuitive in it's use. To begin, one passes NULL as the second arguement. It will return a pointer to the string of the first category in the file. From here on after, one must then pass the previous usage's return value as the second pointer, and it will return a pointer to the category name afterwards.
Returns a category on success, or NULL on failure/no-more-categories

Definition at line 363 of file config.c.

References config, ast_category::name, ast_category::next, and next_available_category().

Referenced by action_getconfig(), aji_load_config(), authenticate(), complete_sipnotify(), gtalk_load_config(), iax_provision_reload(), ind_load_module(), jingle_load_config(), load_config(), load_module(), load_moh_classes(), load_odbc_config(), pbx_load_users(), read_agent_config(), realtime_switch_common(), reload(), reload_config(), set_config(), and setup_zap().

00364 {  
00365    struct ast_category *cat = NULL;
00366 
00367    if (prev && config->last_browse && (config->last_browse->name == prev))
00368       cat = config->last_browse->next;
00369    else if (!prev && config->root)
00370       cat = config->root;
00371    else if (prev) {
00372       for (cat = config->root; cat; cat = cat->next) {
00373          if (cat->name == prev) {
00374             cat = cat->next;
00375             break;
00376          }
00377       }
00378       if (!cat) {
00379          for (cat = config->root; cat; cat = cat->next) {
00380             if (!strcasecmp(cat->name, prev)) {
00381                cat = cat->next;
00382                break;
00383             }
00384          }
00385       }
00386    }
00387    
00388    if (cat)
00389       cat = next_available_category(cat);
00390 
00391    config->last_browse = cat;
00392    return (cat) ? cat->name : NULL;
00393 }

int ast_category_delete struct ast_config cfg,
const char *  category
 

Definition at line 528 of file config.c.

References ast_variables_destroy(), free, ast_config::last, ast_category::next, and ast_config::root.

Referenced by handle_updates().

00529 {
00530    struct ast_category *prev=NULL, *cat;
00531    cat = cfg->root;
00532    while (cat) {
00533       if (cat->name == category) {
00534          ast_variables_destroy(cat->root);
00535          if (prev) {
00536             prev->next = cat->next;
00537             if (cat == cfg->last)
00538                cfg->last = prev;
00539          } else {
00540             cfg->root = cat->next;
00541             if (cat == cfg->last)
00542                cfg->last = NULL;
00543          }
00544          free(cat);
00545          return 0;
00546       }
00547       prev = cat;
00548       cat = cat->next;
00549    }
00550 
00551    prev = NULL;
00552    cat = cfg->root;
00553    while (cat) {
00554       if (!strcasecmp(cat->name, category)) {
00555          ast_variables_destroy(cat->root);
00556          if (prev) {
00557             prev->next = cat->next;
00558             if (cat == cfg->last)
00559                cfg->last = prev;
00560          } else {
00561             cfg->root = cat->next;
00562             if (cat == cfg->last)
00563                cfg->last = NULL;
00564          }
00565          free(cat);
00566          return 0;
00567       }
00568       prev = cat;
00569       cat = cat->next;
00570    }
00571    return -1;
00572 }

void ast_category_destroy struct ast_category cat  ) 
 

Definition at line 350 of file config.c.

References ast_variables_destroy(), free, and ast_category::root.

Referenced by process_text_line(), and realtime_multi_odbc().

00351 {
00352    ast_variables_destroy(cat->root);
00353    free(cat);
00354 }

struct ast_variable* ast_category_detach_variables struct ast_category cat  ) 
 

Definition at line 395 of file config.c.

References ast_category::last, and ast_category::root.

Referenced by realtime_switch_common().

00396 {
00397    struct ast_variable *v;
00398 
00399    v = cat->root;
00400    cat->root = NULL;
00401    cat->last = NULL;
00402 
00403    return v;
00404 }

int ast_category_exist const struct ast_config config,
const char *  category_name
 

Check for category duplicates.

Parameters:
config which config to use
category_name name of the category you're looking for This will search through the categories within a given config file for a match.
Return non-zero if found

Definition at line 334 of file config.c.

References ast_category_get(), and config.

00335 {
00336    return !!ast_category_get(config, category_name);
00337 }

struct ast_category* ast_category_get const struct ast_config config,
const char *  category_name
 

Retrieve a category if it exists.

Parameters:
config which config to use
category_name name of the category you're looking for This will search through the categories within a given config file for a match.
Returns pointer to category if found, NULL if not.

Definition at line 329 of file config.c.

References category_get(), and config.

Referenced by ast_category_exist(), ast_variable_browse(), handle_updates(), and realtime_switch_common().

00330 {
00331    return category_get(config, category_name, 0);
00332 }

struct ast_category* ast_category_new const char *  name  ) 
 

Definition at line 302 of file config.c.

References ast_calloc.

Referenced by config_odbc(), config_pgsql(), handle_updates(), process_text_line(), realtime_multi_odbc(), and realtime_multi_pgsql().

00303 {
00304    struct ast_category *category;
00305 
00306    if ((category = ast_calloc(1, sizeof(*category))))
00307       ast_copy_string(category->name, name, sizeof(category->name));
00308    return category;
00309 }

void ast_category_rename struct ast_category cat,
const char *  name
 

Definition at line 406 of file config.c.

References ast_category::name.

Referenced by handle_updates(), realtime_multi_odbc(), and realtime_multi_pgsql().

00407 {
00408    ast_copy_string(cat->name, name, sizeof(cat->name));
00409 }

int ast_check_realtime const char *  family  ) 
 

Check if realtime engine is configured for family returns 1 if family is configured in realtime and engine exists.

Parameters:
family which family/config to be checked

Definition at line 1376 of file config.c.

References find_engine().

Referenced by _sip_show_device(), _sip_show_devices(), _sip_show_peer(), _sip_show_peers(), and sip_show_settings().

01377 {
01378    struct ast_config_engine *eng;
01379 
01380    eng = find_engine(family, NULL, 0, NULL, 0);
01381    if (eng)
01382       return 1;
01383    return 0;
01384 
01385 }

void ast_config_destroy struct ast_config config  ) 
 

Destroys a config.

Parameters:
config pointer to config data structure Free memory associated with a given config

Definition at line 574 of file config.c.

References ast_variables_destroy(), free, ast_category::next, ast_config::root, and ast_category::root.

Referenced by action_getconfig(), action_updateconfig(), ast_config_load(), ast_config_load_with_comments(), ast_enum_init(), ast_rtp_reload(), ast_udptl_reload(), do_reload(), handle_save_dialplan(), iax_provision_reload(), ind_load_module(), load_config(), load_module(), parse_config(), process_text_line(), read_agent_config(), read_config_maps(), realtime_switch_common(), reload_config(), set_config(), and setup_zap().

00575 {
00576    struct ast_category *cat, *catn;
00577 
00578    if (!cfg)
00579       return;
00580 
00581    cat = cfg->root;
00582    while (cat) {
00583       ast_variables_destroy(cat->root);
00584       catn = cat;
00585       cat = cat->next;
00586       free(catn);
00587    }
00588    free(cfg);
00589 }

int ast_config_engine_deregister struct ast_config_engine del  ) 
 

Deegister config engine.

Definition at line 1189 of file config.c.

References ast_mutex_lock(), config_engine_list, last, and ast_config_engine::next.

Referenced by unload_module().

01190 {
01191    struct ast_config_engine *ptr, *last=NULL;
01192 
01193    ast_mutex_lock(&config_lock);
01194 
01195    for (ptr = config_engine_list; ptr; ptr=ptr->next) {
01196       if (ptr == del) {
01197          if (last)
01198             last->next = ptr->next;
01199          else
01200             config_engine_list = ptr->next;
01201          break;
01202       }
01203       last = ptr;
01204    }
01205 
01206    ast_mutex_unlock(&config_lock);
01207 
01208    return 0;
01209 }

int ast_config_engine_register struct ast_config_engine new  ) 
 

Register config engine.

Definition at line 1170 of file config.c.

References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), config_engine_list, LOG_NOTICE, ast_config_engine::name, and ast_config_engine::next.

Referenced by load_module().

01171 {
01172    struct ast_config_engine *ptr;
01173 
01174    ast_mutex_lock(&config_lock);
01175 
01176    if (!config_engine_list) {
01177       config_engine_list = new;
01178    } else {
01179       for (ptr = config_engine_list; ptr->next; ptr=ptr->next);
01180       ptr->next = new;
01181    }
01182 
01183    ast_mutex_unlock(&config_lock);
01184    ast_log(LOG_NOTICE,"Registered Config Engine %s\n", new->name);
01185 
01186    return 1;
01187 }

struct ast_category* ast_config_get_current_category const struct ast_config cfg  ) 
 

Definition at line 591 of file config.c.

References ast_config::current.

Referenced by config_odbc(), and config_text_file_load().

00592 {
00593    return cfg->current;
00594 }

struct ast_config* ast_config_internal_load const char *  filename,
struct ast_config cfg,
int  withcomments
 

Definition at line 1251 of file config.c.

References ast_log(), config_engine_list, find_engine(), ast_config::include_level, ast_config_engine::load_func, LOG_WARNING, ast_config::max_include_level, and text_file_engine.

Referenced by ast_config_load(), ast_config_load_with_comments(), config_odbc(), config_pgsql(), process_text_line(), and read_config_maps().

01252 {
01253    char db[256];
01254    char table[256];
01255    struct ast_config_engine *loader = &text_file_engine;
01256    struct ast_config *result; 
01257 
01258    if (cfg->include_level == cfg->max_include_level) {
01259       ast_log(LOG_WARNING, "Maximum Include level (%d) exceeded\n", cfg->max_include_level);
01260       return NULL;
01261    }
01262 
01263    cfg->include_level++;
01264 
01265    if (strcmp(filename, extconfig_conf) && strcmp(filename, "asterisk.conf") && config_engine_list) {
01266       struct ast_config_engine *eng;
01267 
01268       eng = find_engine(filename, db, sizeof(db), table, sizeof(table));
01269 
01270 
01271       if (eng && eng->load_func) {
01272          loader = eng;
01273       } else {
01274          eng = find_engine("global", db, sizeof(db), table, sizeof(table));
01275          if (eng && eng->load_func)
01276             loader = eng;
01277       }
01278    }
01279 
01280    result = loader->load_func(db, table, filename, cfg, withcomments);
01281 
01282    if (result)
01283       result->include_level--;
01284 
01285    return result;
01286 }

struct ast_config* ast_config_load const char *  filename  ) 
 

Load a config file.

Parameters:
filename path of file to open. If no preceding '/' character, path is considered relative to AST_CONFIG_DIR Create a config structure from a given configuration file.
Returns NULL on error, or an ast_config data structure on success

Definition at line 1288 of file config.c.

References ast_config_destroy(), ast_config_internal_load(), and ast_config_new().

Referenced by __ast_http_load(), adsi_load(), aji_load_config(), ast_enum_init(), ast_readconfig(), ast_rtp_reload(), ast_udptl_reload(), authenticate(), do_reload(), gtalk_load_config(), handle_save_dialplan(), iax_provision_reload(), ind_load_module(), init_logger_chain(), init_manager(), jingle_load_config(), load_config(), load_module(), load_modules(), load_moh_classes(), load_odbc_config(), parse_config(), pbx_load_config(), pbx_load_users(), read_agent_config(), reload(), reload_config(), set_config(), setup_zap(), and smdi_load().

01289 {
01290    struct ast_config *cfg;
01291    struct ast_config *result;
01292 
01293    cfg = ast_config_new();
01294    if (!cfg)
01295       return NULL;
01296 
01297    result = ast_config_internal_load(filename, cfg, 0);
01298    if (!result)
01299       ast_config_destroy(cfg);
01300 
01301    return result;
01302 }

struct ast_config* ast_config_load_with_comments const char *  filename  ) 
 

Definition at line 1304 of file config.c.

References ast_config_destroy(), ast_config_internal_load(), and ast_config_new().

Referenced by action_getconfig(), and action_updateconfig().

01305 {
01306    struct ast_config *cfg;
01307    struct ast_config *result;
01308 
01309    cfg = ast_config_new();
01310    if (!cfg)
01311       return NULL;
01312 
01313    result = ast_config_internal_load(filename, cfg, 1);
01314    if (!result)
01315       ast_config_destroy(cfg);
01316 
01317    return result;
01318 }

struct ast_config* ast_config_new void   ) 
 

Definition at line 419 of file config.c.

References ast_calloc, config, and MAX_INCLUDE_LEVEL.

Referenced by ast_config_load(), ast_config_load_with_comments(), read_config_maps(), realtime_multi_odbc(), and realtime_multi_pgsql().

00420 {
00421    struct ast_config *config;
00422 
00423    if ((config = ast_calloc(1, sizeof(*config))))
00424       config->max_include_level = MAX_INCLUDE_LEVEL;
00425    return config;
00426 }

const char* ast_config_option struct ast_config cfg,
const char *  cat,
const char *  var
 

Definition at line 240 of file config.c.

References ast_variable_retrieve().

Referenced by pbx_load_users().

00241 {
00242    const char *tmp;
00243    tmp = ast_variable_retrieve(cfg, cat, var);
00244    if (!tmp)
00245       tmp = ast_variable_retrieve(cfg, "general", var);
00246    return tmp;
00247 }

void ast_config_set_current_category struct ast_config cfg,
const struct ast_category cat
 

Definition at line 596 of file config.c.

References ast_config::current.

00597 {
00598    /* cast below is just to silence compiler warning about dropping "const" */
00599    cfg->current = (struct ast_category *) cat;
00600 }

struct ast_variable* ast_load_realtime const char *  family,
  ...
 

Retrieve realtime configuration.

Parameters:
family which family/config to lookup This will use builtin configuration backends to look up a particular entity in realtime and return a variable list of its parameters. Note that unlike the variables in ast_config, the resulting list of variables MUST be freed with ast_variables_destroy() as there is no container.

Definition at line 1346 of file config.c.

References ast_load_realtime_helper(), free, and ast_variable::next.

Referenced by realtime_alias(), realtime_peer(), realtime_switch_common(), and realtime_user().

01347 {
01348    struct ast_variable *res, *cur, *prev = NULL, *freeme = NULL;
01349    va_list ap;
01350 
01351    va_start(ap, family);
01352    res = ast_load_realtime_helper(family, ap);
01353    va_end(ap);
01354 
01355    /* Eliminate blank entries */
01356    for (cur = res; cur; cur = cur->next) {
01357       if (freeme) {
01358          free(freeme);
01359          freeme = NULL;
01360       }
01361 
01362       if (ast_strlen_zero(cur->value)) {
01363          if (prev)
01364             prev->next = cur->next;
01365          else
01366             res = cur->next;
01367          freeme = cur;
01368       } else {
01369          prev = cur;
01370       }
01371    }
01372    return res;
01373 }

struct ast_variable* ast_load_realtime_all const char *  family,
  ...
 

Definition at line 1334 of file config.c.

References ast_load_realtime_helper().

Referenced by cli_realtime_load().

01335 {
01336    struct ast_variable *res;
01337    va_list ap;
01338 
01339    va_start(ap, family);
01340    res = ast_load_realtime_helper(family, ap);
01341    va_end(ap);
01342 
01343    return res;
01344 }

static struct ast_variable* ast_load_realtime_helper const char *  family,
va_list  ap
[static]
 

Definition at line 1320 of file config.c.

References find_engine(), and ast_config_engine::realtime_func.

Referenced by ast_load_realtime(), and ast_load_realtime_all().

01321 {
01322    struct ast_config_engine *eng;
01323    char db[256]="";
01324    char table[256]="";
01325    struct ast_variable *res=NULL;
01326 
01327    eng = find_engine(family, db, sizeof(db), table, sizeof(table));
01328    if (eng && eng->realtime_func) 
01329       res = eng->realtime_func(db, table, ap);
01330 
01331    return res;
01332 }

struct ast_config* ast_load_realtime_multientry const char *  family,
  ...
 

Retrieve realtime configuration.

Parameters:
family which family/config to lookup This will use builtin configuration backends to look up a particular entity in realtime and return a variable list of its parameters. Unlike the ast_load_realtime, this function can return more than one entry and is thus stored inside a taditional ast_config structure rather than just returning a linked list of variables.

Definition at line 1387 of file config.c.

References find_engine(), and ast_config_engine::realtime_multi_func.

Referenced by realtime_s