Mon Jun 27 16:50:59 2011

Asterisk developer's documentation


app_morsecode.c File Reference

Morsecode application. More...

#include "asterisk.h"
#include "asterisk/file.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/indications.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 morsecode_exec (struct ast_channel *chan, const char *data)
static void playtone (struct ast_channel *chan, int tone, int len)
static int unload_module (void)

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Morse code" , .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 = "8586c2a7d357cb591cc3a6607a8f62d1" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, }
static const char app_morsecode [] = "Morsecode"
static struct ast_module_infoast_module_info = &__mod_info
static const char *const morsecode []


Detailed Description

Morsecode application.

Author:
Tilghman Lesher <app_morsecode__v001@the-tilghman.com>

Definition in file app_morsecode.c.


Function Documentation

static void __reg_module ( void   )  [static]

Definition at line 184 of file app_morsecode.c.

static void __unreg_module ( void   )  [static]

Definition at line 184 of file app_morsecode.c.

static int load_module ( void   )  [static]

Definition at line 179 of file app_morsecode.c.

References ast_register_application_xml, and morsecode_exec().

static int morsecode_exec ( struct ast_channel chan,
const char *  data 
) [static]

Definition at line 121 of file app_morsecode.c.

References ast_channel_lock, ast_channel_unlock, ast_log(), ast_strlen_zero(), LOG_WARNING, pbx_builtin_getvar_helper(), and playtone().

Referenced by load_module().

00122 {
00123    int res=0, ditlen, tone;
00124    const char *digit;
00125    const char *ditlenc, *tonec;
00126 
00127    if (ast_strlen_zero(data)) {
00128       ast_log(LOG_WARNING, "Syntax: Morsecode(<string>) - no argument found\n");
00129       return 0;
00130    }
00131 
00132    /* Use variable MORESEDITLEN, if set (else 80) */
00133    ast_channel_lock(chan);
00134    ditlenc = pbx_builtin_getvar_helper(chan, "MORSEDITLEN");
00135    if (ast_strlen_zero(ditlenc) || (sscanf(ditlenc, "%30d", &ditlen) != 1)) {
00136       ditlen = 80;
00137    }
00138    ast_channel_unlock(chan);
00139 
00140    /* Use variable MORSETONE, if set (else 800) */
00141    ast_channel_lock(chan);
00142    tonec = pbx_builtin_getvar_helper(chan, "MORSETONE");
00143    if (ast_strlen_zero(tonec) || (sscanf(tonec, "%30d", &tone) != 1)) {
00144       tone = 800;
00145    }
00146    ast_channel_unlock(chan);
00147 
00148    for (digit = data; *digit; digit++) {
00149       int digit2 = *digit;
00150       const char *dahdit;
00151       if (digit2 < 0) {
00152          continue;
00153       }
00154       for (dahdit = morsecode[digit2]; *dahdit; dahdit++) {
00155          if (*dahdit == '-') {
00156             playtone(chan, tone, 3 * ditlen);
00157          } else if (*dahdit == '.') {
00158             playtone(chan, tone, 1 * ditlen);
00159          } else {
00160             /* Account for ditlen of silence immediately following */
00161             playtone(chan, 0, 2 * ditlen);
00162          }
00163 
00164          /* Pause slightly between each dit and dah */
00165          playtone(chan, 0, 1 * ditlen);
00166       }
00167       /* Pause between characters */
00168       playtone(chan, 0, 2 * ditlen);
00169    }
00170 
00171    return res;
00172 }

static void playtone ( struct ast_channel chan,
int  tone,
int  len 
) [static]

Definition at line 112 of file app_morsecode.c.

References ast_playtones_start(), ast_playtones_stop(), and ast_safe_sleep().

Referenced by action_bridge(), and morsecode_exec().

00113 {
00114    char dtmf[20];
00115    snprintf(dtmf, sizeof(dtmf), "%d/%d", tone, len);
00116    ast_playtones_start(chan, 0, dtmf, 0);
00117    ast_safe_sleep(chan, len);
00118    ast_playtones_stop(chan);
00119 }

static int unload_module ( void   )  [static]

Definition at line 174 of file app_morsecode.c.

References ast_unregister_application().

00175 {
00176    return ast_unregister_application(app_morsecode);
00177 }


Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Morse code" , .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 = "8586c2a7d357cb591cc3a6607a8f62d1" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, } [static]

Definition at line 184 of file app_morsecode.c.

const char app_morsecode[] = "Morsecode" [static]

Definition at line 66 of file app_morsecode.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 184 of file app_morsecode.c.

const char* const morsecode[] [static]

Definition at line 68 of file app_morsecode.c.


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