app_waitforring.c File Reference

Wait for Ring Application. More...

#include "asterisk.h"
#include "asterisk/file.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/lock.h"

Include dependency graph for app_waitforring.c:

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	unload_module (void)
static int	waitforring_exec (struct ast_channel *chan, void *data)
Variables
static struct ast_module_info __MODULE_INFO_SECTION	__mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Waits until first ring after time" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, }
static char *	app = "WaitForRing"
static struct ast_module_info *	ast_module_info = &__mod_info

---

Detailed Description

Wait for Ring Application.

Author:

Mark Spencer <markster@digium.com>

Definition in file app_waitforring.c.

---

Function Documentation

static void __reg_module

(

void

)

[static]

Definition at line 134 of file app_waitforring.c.

static void __unreg_module

(

void

)

[static]

Definition at line 134 of file app_waitforring.c.

static int load_module

(

void

)

[static]

Definition at line 129 of file app_waitforring.c.

References ast_register_application_xml, and waitforring_exec().

{
   return ast_register_application_xml(app, waitforring_exec);
}

static int unload_module

(

void

)

[static]

Definition at line 124 of file app_waitforring.c.

References ast_unregister_application().

{
   return ast_unregister_application(app);
}

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

Definition at line 56 of file app_waitforring.c.

References ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), AST_CONTROL_RING, AST_FRAME_CONTROL, ast_frfree, ast_log(), ast_opt_transmit_silence, ast_read(), ast_verb, ast_waitfor(), f, ast_frame::frametype, LOG_WARNING, s, and ast_frame::subclass.

Referenced by load_module().

{
   struct ast_frame *f;
   struct ast_silence_generator *silgen = NULL;
   int res = 0;
   double s;
   int ms;

   if (!data || (sscanf(data, "%30lg", &s) != 1)) {
      ast_log(LOG_WARNING, "WaitForRing requires an argument (minimum seconds)\n");
      return 0;
   }

   if (ast_opt_transmit_silence) {
      silgen = ast_channel_start_silence_generator(chan);
   }

   ms = s * 1000.0;
   while (ms > 0) {
      ms = ast_waitfor(chan, ms);
      if (ms < 0) {
         res = ms;
         break;
      }
      if (ms > 0) {
         f = ast_read(chan);
         if (!f) {
            res = -1;
            break;
         }
         if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) {
            ast_verb(3, "Got a ring but still waiting for timeout\n");
         }
         ast_frfree(f);
      }
   }
   /* Now we're really ready for the ring */
   if (!res) {
      ms = 99999999;
      while(ms > 0) {
         ms = ast_waitfor(chan, ms);
         if (ms < 0) {
            res = ms;
            break;
         }
         if (ms > 0) {
            f = ast_read(chan);
            if (!f) {
               res = -1;
               break;
            }
            if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) {
               ast_verb(3, "Got a ring after the timeout\n");
               ast_frfree(f);
               break;
            }
            ast_frfree(f);
         }
      }
   }

   if (silgen) {
      ast_channel_stop_silence_generator(chan, silgen);
   }

   return res;
}

---

Variable Documentation

struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Waits until first ring after time" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } [static]

Definition at line 134 of file app_waitforring.c.

char* app = "WaitForRing" [static]

Definition at line 54 of file app_waitforring.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 134 of file app_waitforring.c.