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asterisk/apps/app_flash.c
rizzo 3664249356 This rather large commit changes the way modules are loaded.
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: http://svn.digium.com/svn/asterisk/trunk@20003 f38db490-d61c-443f-a65b-d21fe96a405b
2006-04-14 14:08:19 +00:00

135 lines
3.2 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 App to flash a zap trunk
*
* \author Mark Spencer <markster@digium.com>
*
* \ingroup applications
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#ifdef __linux__
#include <linux/zaptel.h>
#else
#include <zaptel.h>
#endif /* __linux__ */
#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"
#include "asterisk/translate.h"
#include "asterisk/image.h"
#include "asterisk/options.h"
static char *app = "Flash";
static char *synopsis = "Flashes a Zap Trunk";
static char *descrip =
" Flash(): Sends a flash on a zap trunk. This is only a hack for\n"
"people who want to perform transfers and such via AGI and is generally\n"
"quite useless oths application will only work on Zap trunks.\n";
LOCAL_USER_DECL;
static inline int zt_wait_event(int fd)
{
/* Avoid the silly zt_waitevent which ignores a bunch of events */
int i,j=0;
i = ZT_IOMUX_SIGEVENT;
if (ioctl(fd, ZT_IOMUX, &i) == -1) return -1;
if (ioctl(fd, ZT_GETEVENT, &j) == -1) return -1;
return j;
}
static int flash_exec(struct ast_channel *chan, void *data)
{
int res = -1;
int x;
struct localuser *u;
struct zt_params ztp;
LOCAL_USER_ADD(u);
if (!strcasecmp(chan->tech->type, "Zap")) {
memset(&ztp, 0, sizeof(ztp));
res = ioctl(chan->fds[0], ZT_GET_PARAMS, &ztp);
if (!res) {
if (ztp.sigtype & __ZT_SIG_FXS) {
x = ZT_FLASH;
res = ioctl(chan->fds[0], ZT_HOOK, &x);
if (!res || (errno == EINPROGRESS)) {
if (res) {
/* Wait for the event to finish */
zt_wait_event(chan->fds[0]);
}
res = ast_safe_sleep(chan, 1000);
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Flashed channel %s\n", chan->name);
} else
ast_log(LOG_WARNING, "Unable to flash channel %s: %s\n", chan->name, strerror(errno));
} else
ast_log(LOG_WARNING, "%s is not an FXO Channel\n", chan->name);
} else
ast_log(LOG_WARNING, "Unable to get parameters of %s: %s\n", chan->name, strerror(errno));
} else
ast_log(LOG_WARNING, "%s is not a Zap channel\n", chan->name);
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, flash_exec, synopsis, descrip);
}
static const char *description(void)
{
return "Flash zap trunk application";
}
static const char *key(void)
{
return ASTERISK_GPL_KEY;
}
STD_MOD1;