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
233 lines
5.7 KiB
C
233 lines
5.7 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (c) 2004 - 2006 Digium, Inc. All rights reserved.
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*
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* Mark Spencer <markster@digium.com>
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*
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* This code is released under the GNU General Public License
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* version 2.0. See LICENSE for more information.
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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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*/
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/*! \file
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*
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* \brief page() - Paging application
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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 <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/options.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/file.h"
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#include "asterisk/app.h"
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#include "asterisk/chanvars.h"
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#include "asterisk/utils.h"
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static const char *app_page= "Page";
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static const char *page_synopsis = "Pages phones";
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static const char *page_descrip =
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"Page(Technology/Resource&Technology2/Resource2[|options])\n"
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" Places outbound calls to the given technology / resource and dumps\n"
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"them into a conference bridge as muted participants. The original\n"
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"caller is dumped into the conference as a speaker and the room is\n"
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"destroyed when the original caller leaves. Valid options are:\n"
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" d - full duplex audio\n"
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" q - quiet, do not play beep to caller\n";
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LOCAL_USER_DECL;
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enum {
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PAGE_DUPLEX = (1 << 0),
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PAGE_QUIET = (1 << 1),
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} page_opt_flags;
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AST_APP_OPTIONS(page_opts, {
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AST_APP_OPTION('d', PAGE_DUPLEX),
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AST_APP_OPTION('q', PAGE_QUIET),
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});
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struct calloutdata {
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char cidnum[64];
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char cidname[64];
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char tech[64];
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char resource[256];
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char meetmeopts[64];
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struct ast_variable *variables;
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};
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static void *page_thread(void *data)
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{
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struct calloutdata *cd = data;
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ast_pbx_outgoing_app(cd->tech, AST_FORMAT_SLINEAR, cd->resource, 30000,
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"MeetMe", cd->meetmeopts, NULL, 0, cd->cidnum, cd->cidname, cd->variables, NULL, NULL);
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free(cd);
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return NULL;
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}
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static void launch_page(struct ast_channel *chan, const char *meetmeopts, const char *tech, const char *resource)
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{
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struct calloutdata *cd;
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const char *varname;
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struct ast_variable *lastvar = NULL;
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struct ast_var_t *varptr;
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pthread_t t;
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pthread_attr_t attr;
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if ((cd = ast_calloc(1, sizeof(*cd)))) {
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ast_copy_string(cd->cidnum, chan->cid.cid_num ? chan->cid.cid_num : "", sizeof(cd->cidnum));
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ast_copy_string(cd->cidname, chan->cid.cid_name ? chan->cid.cid_name : "", sizeof(cd->cidname));
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ast_copy_string(cd->tech, tech, sizeof(cd->tech));
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ast_copy_string(cd->resource, resource, sizeof(cd->resource));
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ast_copy_string(cd->meetmeopts, meetmeopts, sizeof(cd->meetmeopts));
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AST_LIST_TRAVERSE(&chan->varshead, varptr, entries) {
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if (!(varname = ast_var_full_name(varptr)))
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continue;
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if (varname[0] == '_') {
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struct ast_variable *newvar = NULL;
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if (varname[1] == '_') {
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newvar = ast_variable_new(varname, ast_var_value(varptr));
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} else {
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newvar = ast_variable_new(&varname[1], ast_var_value(varptr));
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}
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if (newvar) {
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if (lastvar)
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lastvar->next = newvar;
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else
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cd->variables = newvar;
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lastvar = newvar;
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}
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}
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}
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pthread_attr_init(&attr);
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pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
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if (ast_pthread_create(&t, &attr, page_thread, cd)) {
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ast_log(LOG_WARNING, "Unable to create paging thread: %s\n", strerror(errno));
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free(cd);
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}
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}
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}
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static int page_exec(struct ast_channel *chan, void *data)
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{
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struct localuser *u;
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char *options;
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char *tech, *resource;
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char meetmeopts[80];
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struct ast_flags flags = { 0 };
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unsigned int confid = ast_random();
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struct ast_app *app;
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char *tmp;
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int res=0;
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char originator[AST_CHANNEL_NAME];
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if (ast_strlen_zero(data)) {
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ast_log(LOG_WARNING, "This application requires at least one argument (destination(s) to page)\n");
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return -1;
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}
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LOCAL_USER_ADD(u);
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if (!(app = pbx_findapp("MeetMe"))) {
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ast_log(LOG_WARNING, "There is no MeetMe application available!\n");
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LOCAL_USER_REMOVE(u);
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return -1;
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};
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if (!(options = ast_strdupa(data))) {
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LOCAL_USER_REMOVE(u);
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return -1;
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}
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ast_copy_string(originator, chan->name, sizeof(originator));
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if ((tmp = strchr(originator, '-')))
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*tmp = '\0';
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tmp = strsep(&options, "|");
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if (options)
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ast_app_parse_options(page_opts, &flags, NULL, options);
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snprintf(meetmeopts, sizeof(meetmeopts), "%ud|%sqxdw", confid, ast_test_flag(&flags, PAGE_DUPLEX) ? "" : "m");
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while ((tech = strsep(&tmp, "&"))) {
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/* don't call the originating device */
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if (!strcasecmp(tech, originator))
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continue;
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if ((resource = strchr(tech, '/'))) {
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*resource++ = '\0';
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launch_page(chan, meetmeopts, tech, resource);
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} else {
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ast_log(LOG_WARNING, "Incomplete destination '%s' supplied.\n", tech);
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}
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}
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if (!ast_test_flag(&flags, PAGE_QUIET)) {
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res = ast_streamfile(chan, "beep", chan->language);
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if (!res)
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res = ast_waitstream(chan, "");
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}
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if (!res) {
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snprintf(meetmeopts, sizeof(meetmeopts), "%ud|A%sqxd", confid, ast_test_flag(&flags, PAGE_DUPLEX) ? "" : "t");
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pbx_exec(chan, app, meetmeopts);
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}
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LOCAL_USER_REMOVE(u);
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return -1;
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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_page);
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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_page, page_exec, page_synopsis, page_descrip);
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}
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static const char *description(void)
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{
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return "Page Multiple Phones";
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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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