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
125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
/*
|
|
* Asterisk -- An open source telephony toolkit.
|
|
*
|
|
* Copyright (C) 1999 - 2005, Digium, Inc.
|
|
*
|
|
* Mark Spencer <markster@digium.com>
|
|
*
|
|
* See http://www.asterisk.org for more information about
|
|
* the Asterisk project. Please do not directly contact
|
|
* any of the maintainers of this project for assistance;
|
|
* the project provides a web site, mailing lists and IRC
|
|
* channels for your use.
|
|
*
|
|
* This program is free software, distributed under the terms of
|
|
* the GNU General Public License Version 2. See the LICENSE file
|
|
* at the top of the source tree.
|
|
*/
|
|
|
|
/*! \file
|
|
*
|
|
* \brief Echo application -- play back what you hear to evaluate latency
|
|
*
|
|
* \author Mark Spencer <markster@digium.com>
|
|
*
|
|
* \ingroup applications
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include "asterisk.h"
|
|
|
|
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
|
|
|
#include "asterisk/lock.h"
|
|
#include "asterisk/file.h"
|
|
#include "asterisk/logger.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/pbx.h"
|
|
#include "asterisk/module.h"
|
|
|
|
static char *tdesc = "Simple Echo Application";
|
|
|
|
static char *app = "Echo";
|
|
|
|
static char *synopsis = "Echo audio, video, or DTMF back to the calling party";
|
|
|
|
static char *descrip =
|
|
" Echo(): This application will echo any audio, video, or DTMF frames read from\n"
|
|
"the calling channel back to itself. If the DTMF digit '#' is received, the\n"
|
|
"application will exit.\n";
|
|
|
|
LOCAL_USER_DECL;
|
|
|
|
static int echo_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
int res = -1;
|
|
int format;
|
|
struct localuser *u;
|
|
|
|
LOCAL_USER_ADD(u);
|
|
|
|
format = ast_best_codec(chan->nativeformats);
|
|
ast_set_write_format(chan, format);
|
|
ast_set_read_format(chan, format);
|
|
|
|
while (ast_waitfor(chan, -1) > -1) {
|
|
struct ast_frame *f = ast_read(chan);
|
|
if (!f)
|
|
break;
|
|
f->delivery.tv_sec = 0;
|
|
f->delivery.tv_usec = 0;
|
|
if (f->frametype == AST_FRAME_VOICE) {
|
|
if (ast_write(chan, f))
|
|
break;
|
|
} else if (f->frametype == AST_FRAME_VIDEO) {
|
|
if (ast_write(chan, f))
|
|
break;
|
|
} else if (f->frametype == AST_FRAME_DTMF) {
|
|
if (f->subclass == '#') {
|
|
res = 0;
|
|
break;
|
|
} else {
|
|
if (ast_write(chan, f))
|
|
break;
|
|
}
|
|
}
|
|
ast_frfree(f);
|
|
}
|
|
|
|
LOCAL_USER_REMOVE(u);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int unload_module(void *mod)
|
|
{
|
|
int res;
|
|
|
|
res = ast_unregister_application(app);
|
|
|
|
STANDARD_HANGUP_LOCALUSERS;
|
|
|
|
return res;
|
|
}
|
|
|
|
static int load_module(void *mod)
|
|
{
|
|
return ast_register_application(app, echo_exec, synopsis, descrip);
|
|
}
|
|
|
|
static const char *description(void)
|
|
{
|
|
return tdesc;
|
|
}
|
|
|
|
static const char *key(void)
|
|
{
|
|
return ASTERISK_GPL_KEY;
|
|
}
|
|
|
|
STD_MOD1;
|