Sat Aug 6 00:39:36 2011

Asterisk developer's documentation


app_random.c File Reference

Random application. More...

#include "asterisk.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/options.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"

Go to the source code of this file.

Functions

static void __reg_module (void)
static void __unreg_module (void)
static int load_module (void)
static int random_exec (struct ast_channel *chan, void *data)
static int unload_module (void)

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT | AST_MODFLAG_BUILDSUM, .description = "Random goto" , .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 = "361d7bb937402d51e4658efb5b4d76e4" , .load = load_module, .unload = unload_module, }
static char * app_random = "Random"
static const struct ast_module_infoast_module_info = &__mod_info
static char * random_descrip
static char * random_synopsis = "Conditionally branches, based upon a probability"


Detailed Description

Random application.

Author:
Tilghman Lesher <asterisk__app_random__200508@the-tilghman.com>

Definition in file app_random.c.


Function Documentation

static void __reg_module ( void   )  [static]

Definition at line 108 of file app_random.c.

static void __unreg_module ( void   )  [static]

Definition at line 108 of file app_random.c.

static int load_module ( void   )  [static]

Definition at line 103 of file app_random.c.

References ast_register_application(), and random_exec().

static int random_exec ( struct ast_channel chan,
void *  data 
) [static]

Definition at line 54 of file app_random.c.

References ast_log(), ast_module_user_add, ast_module_user_remove, ast_parseable_goto(), ast_random(), ast_strdupa, ast_strlen_zero(), ast_verbose(), ast_module_user::chan, ast_channel::context, ast_channel::exten, LOG_WARNING, option_verbose, ast_channel::priority, s, and VERBOSE_PREFIX_3.

Referenced by load_module().

00055 {
00056    int res=0;
00057    struct ast_module_user *u;
00058 
00059    char *s;
00060    char *prob;
00061    int probint;
00062    static int deprecated = 0;
00063 
00064    if (ast_strlen_zero(data)) {
00065       ast_log(LOG_WARNING, "Random requires an argument ([probability]:[[context|]extension|]priority)\n");
00066       return -1;
00067    }
00068    
00069    u = ast_module_user_add(chan);
00070 
00071    s = ast_strdupa(data);
00072 
00073    prob = strsep(&s,":");
00074    if ((!prob) || (sscanf(prob, "%30d", &probint) != 1))
00075       probint = 0;
00076 
00077    if (!deprecated) {
00078       deprecated = 1;
00079       ast_log(LOG_WARNING, "Random is deprecated in Asterisk 1.4.  Replace with GotoIf($[${RAND(0,99)} + %d >= 100]?%s)\n", probint, s);
00080    }
00081 
00082    if ((ast_random() % 100) + probint >= 100) {
00083       res = ast_parseable_goto(chan, s);
00084       if (option_verbose > 2)
00085          ast_verbose( VERBOSE_PREFIX_3 "Random branches to (%s,%s,%d)\n",
00086             chan->context,chan->exten, chan->priority+1);
00087    }
00088    ast_module_user_remove(u);
00089    return res;
00090 }

static int unload_module ( void   )  [static]

Definition at line 92 of file app_random.c.

References ast_module_user_hangup_all, and ast_unregister_application().

00093 {
00094    int res;
00095    
00096    res = ast_unregister_application(app_random);
00097    
00098    ast_module_user_hangup_all();
00099 
00100    return res; 
00101 }


Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT | AST_MODFLAG_BUILDSUM, .description = "Random goto" , .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 = "361d7bb937402d51e4658efb5b4d76e4" , .load = load_module, .unload = unload_module, } [static]

Definition at line 108 of file app_random.c.

char* app_random = "Random" [static]

Todo:
The Random() app should be removed from trunk following the release of 1.4

Definition at line 44 of file app_random.c.

const struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 108 of file app_random.c.

char* random_descrip [static]

Initial value:

"Random([probability]:[[context|]extension|]priority)\n"
"  probability := INTEGER in the range 1 to 100\n"
"DEPRECATED: Use GotoIf($[${RAND(1,100)} > <number>]?<label>)\n"

Definition at line 48 of file app_random.c.

char* random_synopsis = "Conditionally branches, based upon a probability" [static]

Definition at line 46 of file app_random.c.


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