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e43bc6634d
As partly documented in loader.c and include/asterisk/module.h, modules are now expected to return all of their methods and flags into a structure 'mod_data', and are normally loaded with RTLD_NOW | RTLD_LOCAL, so symbols are resolved immediately and conflicts should be less likely. Only in a small number of cases (res_*, typically) modules are loaded RTLD_GLOBAL, so they can export symbols. The core of the change is only the two files loader.c and include/asterisk/module.h, all the rest is simply adaptation of the existing modules to the new API, a rather mechanical (but believe me, time and finger-consuming!) process whose detail you can figure out by svn diff'ing any single module. Expect some minor compilation issue after this change, please report it on mantis http://bugs.digium.com/view.php?id=6968 so we collect all the feedback in one place. I am just sorry that this change missed SVN version number 20000! git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@20003 65c4cc65-6c06-0410-ace0-fbb531ad65f3
165 lines
4.1 KiB
C
165 lines
4.1 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Trivial application to playback a sound file
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* \ingroup applications
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/lock.h"
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/translate.h"
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#include "asterisk/utils.h"
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#include "asterisk/options.h"
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#include "asterisk/app.h"
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static char *tdesc = "Sound File Playback Application";
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static char *app = "Playback";
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static char *synopsis = "Play a file";
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static char *descrip =
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" Playback(filename[&filename2...][|option]): Plays back given filenames (do not put\n"
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"extension). Options may also be included following a pipe symbol. The 'skip'\n"
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"option causes the playback of the message to be skipped if the channel\n"
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"is not in the 'up' state (i.e. it hasn't been answered yet). If 'skip' is \n"
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"specified, the application will return immediately should the channel not be\n"
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"off hook. Otherwise, unless 'noanswer' is specified, the channel will\n"
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"be answered before the sound is played. Not all channels support playing\n"
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"messages while still on hook. If 'j' is specified, the application\n"
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"will jump to priority n+101 if present when a file specified to be played\n"
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"does not exist.\n"
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"This application sets the following channel variable upon completion:\n"
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" PLAYBACKSTATUS The status of the playback attempt as a text string, one of\n"
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" SUCCESS | FAILED\n"
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;
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LOCAL_USER_DECL;
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static int playback_exec(struct ast_channel *chan, void *data)
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{
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int res = 0;
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struct localuser *u;
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char *tmp;
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int option_skip=0;
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int option_noanswer = 0;
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int priority_jump = 0;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(filenames);
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AST_APP_ARG(options);
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);
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if (ast_strlen_zero(data)) {
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ast_log(LOG_WARNING, "Playback requires an argument (filename)\n");
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return -1;
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}
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if (!(tmp = ast_strdupa(data)))
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return -1;
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LOCAL_USER_ADD(u);
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AST_STANDARD_APP_ARGS(args, tmp);
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if (args.options) {
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if (strcasestr(args.options, "skip"))
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option_skip = 1;
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if (strcasestr(args.options, "noanswer"))
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option_noanswer = 1;
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if (strchr(args.options, 'j'))
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priority_jump = 1;
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}
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if (chan->_state != AST_STATE_UP) {
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if (option_skip) {
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/* At the user's option, skip if the line is not up */
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LOCAL_USER_REMOVE(u);
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return 0;
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} else if (!option_noanswer)
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/* Otherwise answer unless we're supposed to send this while on-hook */
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res = ast_answer(chan);
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}
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if (!res) {
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int mres = 0;
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char *front;
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ast_stopstream(chan);
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while (!res && (front = strsep(&tmp, "&"))) {
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res = ast_streamfile(chan, front, chan->language);
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if (!res) {
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res = ast_waitstream(chan, "");
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ast_stopstream(chan);
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} else {
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ast_log(LOG_WARNING, "ast_streamfile failed on %s for %s\n", chan->name, (char *)data);
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if (priority_jump || ast_opt_priority_jumping)
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ast_goto_if_exists(chan, chan->context, chan->exten, chan->priority + 101);
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res = 0;
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mres = 1;
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}
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}
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pbx_builtin_setvar_helper(chan, "PLAYBACKSTATUS", mres ? "FAILED" : "SUCCESS");
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}
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LOCAL_USER_REMOVE(u);
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return res;
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}
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static int unload_module(void *mod)
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{
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int res;
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res = ast_unregister_application(app);
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STANDARD_HANGUP_LOCALUSERS;
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return res;
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}
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static int load_module(void *mod)
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{
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return ast_register_application(app, playback_exec, synopsis, descrip);
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}
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static const char *description(void)
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{
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return tdesc;
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}
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static const char *key(void)
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{
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return ASTERISK_GPL_KEY;
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}
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STD_MOD1;
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