app_chanisavail.c File Reference
Check if Channel is Available. More...
#include "asterisk.h"#include <sys/ioctl.h>#include "asterisk/lock.h"#include "asterisk/file.h"#include "asterisk/channel.h"#include "asterisk/pbx.h"#include "asterisk/module.h"#include "asterisk/app.h"#include "asterisk/devicestate.h"
Include dependency graph for app_chanisavail.c:
Go to the source code of this file.
Functions | |
| static void | __reg_module (void) |
| static void | __unreg_module (void) |
| static int | chanavail_exec (struct ast_channel *chan, void *data) |
| static int | load_module (void) |
| static int | unload_module (void) |
Variables | |
| static struct ast_module_info __MODULE_INFO_SECTION | __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Check channel availability" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } |
| static char * | app = "ChanIsAvail" |
| static struct ast_module_info * | ast_module_info = &__mod_info |
Detailed Description
Check if Channel is Available.
Definition in file app_chanisavail.c.
Function Documentation
| static void __reg_module | ( | void | ) | [static] |
Definition at line 206 of file app_chanisavail.c.
| static void __unreg_module | ( | void | ) | [static] |
Definition at line 206 of file app_chanisavail.c.
| static int chanavail_exec | ( | struct ast_channel * | chan, |
| void * | data | ||
| ) | [static] |
Definition at line 97 of file app_chanisavail.c.
References AST_APP_ARG, AST_DECLARE_APP_ARGS, ast_hangup(), ast_log(), ast_parse_device_state(), ast_request(), AST_STANDARD_APP_ARGS, ast_str_alloca, ast_str_append(), ast_str_buffer(), ast_str_strlen(), ast_strdupa, ast_strlen_zero(), inuse, LOG_WARNING, ast_channel::name, ast_channel::nativeformats, pbx_builtin_setvar_helper(), peers, and status.
Referenced by load_module().
{
int inuse=-1, option_state=0, string_compare=0, option_all_avail=0;
int status;
char *info, tmp[512], trychan[512], *peers, *tech, *number, *rest, *cur;
struct ast_str *tmp_availchan = ast_str_alloca(2048);
struct ast_str *tmp_availorig = ast_str_alloca(2048);
struct ast_str *tmp_availstat = ast_str_alloca(2048);
struct ast_channel *tempchan;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(reqchans);
AST_APP_ARG(options);
);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "ChanIsAvail requires an argument (DAHDI/1&DAHDI/2)\n");
return -1;
}
info = ast_strdupa(data);
AST_STANDARD_APP_ARGS(args, info);
if (args.options) {
if (strchr(args.options, 'a')) {
option_all_avail = 1;
}
if (strchr(args.options, 's')) {
option_state = 1;
}
if (strchr(args.options, 't')) {
string_compare = 1;
}
}
peers = args.reqchans;
if (peers) {
cur = peers;
do {
/* remember where to start next time */
rest = strchr(cur, '&');
if (rest) {
*rest = 0;
rest++;
}
tech = cur;
number = strchr(tech, '/');
if (!number) {
ast_log(LOG_WARNING, "ChanIsAvail argument takes format ([technology]/[device])\n");
return -1;
}
*number = '\0';
number++;
if (string_compare) {
/* ast_parse_device_state checks for "SIP/1234" as a channel name.
ast_device_state will ask the SIP driver for the channel state. */
snprintf(trychan, sizeof(trychan), "%s/%s",cur,number);
status = inuse = ast_parse_device_state(trychan);
} else if (option_state) {
/* If the pbx says in use then don't bother trying further.
This is to permit testing if someone's on a call, even if the
channel can permit more calls (ie callwaiting, sip calls, etc). */
snprintf(trychan, sizeof(trychan), "%s/%s",cur,number);
status = inuse = ast_device_state(trychan);
}
if ((inuse <= 1) && (tempchan = ast_request(tech, chan->nativeformats, number, &status))) {
ast_str_append(&tmp_availchan, 0, "%s%s", ast_str_strlen(tmp_availchan) ? "&" : "", tempchan->name);
snprintf(tmp, sizeof(tmp), "%s/%s", tech, number);
ast_str_append(&tmp_availorig, 0, "%s%s", ast_str_strlen(tmp_availorig) ? "&" : "", tmp);
snprintf(tmp, sizeof(tmp), "%d", status);
ast_str_append(&tmp_availstat, 0, "%s%s", ast_str_strlen(tmp_availstat) ? "&" : "", tmp);
ast_hangup(tempchan);
tempchan = NULL;
if (!option_all_avail) {
break;
}
} else {
snprintf(tmp, sizeof(tmp), "%d", status);
ast_str_append(&tmp_availstat, 0, "%s%s", ast_str_strlen(tmp_availstat) ? "&" : "", tmp);
}
cur = rest;
} while (cur);
}
pbx_builtin_setvar_helper(chan, "AVAILCHAN", ast_str_buffer(tmp_availchan));
/* Store the originally used channel too */
pbx_builtin_setvar_helper(chan, "AVAILORIGCHAN", ast_str_buffer(tmp_availorig));
pbx_builtin_setvar_helper(chan, "AVAILSTATUS", ast_str_buffer(tmp_availstat));
return 0;
}
| static int load_module | ( | void | ) | [static] |
Definition at line 200 of file app_chanisavail.c.
References AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, ast_register_application_xml, and chanavail_exec().
| static int unload_module | ( | void | ) | [static] |
Definition at line 195 of file app_chanisavail.c.
References ast_unregister_application().
{
return ast_unregister_application(app);
}
Variable Documentation
struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Check channel availability" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } [static] |
Definition at line 206 of file app_chanisavail.c.
char* app = "ChanIsAvail" [static] |
Definition at line 44 of file app_chanisavail.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 206 of file app_chanisavail.c.
