ASTERISK_REGISTER_FILE no longer has any purpose so this commit removes all traces of it. Previously exported symbols removed: * __ast_register_file * __ast_unregister_file * ast_complete_source_filename This also removes the mtx_prof static variable that was declared when MTX_PROFILE was enabled. This variable was only used in lock.c so it is now initialized in that file only. ASTERISK-26480 #close Change-Id: I1074af07d71f9e159c48ef36631aa432c86f9966
299 lines
7.1 KiB
C
299 lines
7.1 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2016, CFWare, LLC
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*
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* Corey Farrell <git@cfware.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 PBX Hangup Handler management routines.
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*
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* \author Corey Farrell <git@cfware.com>
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include "asterisk/_private.h"
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#include "asterisk/app.h"
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#include "asterisk/cli.h"
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#include "asterisk/linkedlists.h"
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#include "asterisk/pbx.h"
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#include "asterisk/stasis_channels.h"
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#include "asterisk/utils.h"
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/*!
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* \internal
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* \brief Publish a hangup handler related message to \ref stasis
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*/
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static void publish_hangup_handler_message(const char *action, struct ast_channel *chan, const char *handler)
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{
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RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
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blob = ast_json_pack("{s: s, s: s}",
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"type", action,
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"handler", S_OR(handler, ""));
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if (!blob) {
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return;
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}
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ast_channel_publish_blob(chan, ast_channel_hangup_handler_type(), blob);
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}
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int ast_pbx_hangup_handler_run(struct ast_channel *chan)
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{
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struct ast_hangup_handler_list *handlers;
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struct ast_hangup_handler *h_handler;
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ast_channel_lock(chan);
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handlers = ast_channel_hangup_handlers(chan);
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if (AST_LIST_EMPTY(handlers)) {
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ast_channel_unlock(chan);
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return 0;
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}
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/*
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* Make sure that the channel is marked as hungup since we are
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* going to run the hangup handlers on it.
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*/
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ast_softhangup_nolock(chan, AST_SOFTHANGUP_HANGUP_EXEC);
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for (;;) {
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handlers = ast_channel_hangup_handlers(chan);
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h_handler = AST_LIST_REMOVE_HEAD(handlers, node);
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if (!h_handler) {
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break;
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}
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publish_hangup_handler_message("run", chan, h_handler->args);
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ast_channel_unlock(chan);
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ast_app_exec_sub(NULL, chan, h_handler->args, 1);
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ast_free(h_handler);
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ast_channel_lock(chan);
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}
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ast_channel_unlock(chan);
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return 1;
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}
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void ast_pbx_hangup_handler_init(struct ast_channel *chan)
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{
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struct ast_hangup_handler_list *handlers;
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handlers = ast_channel_hangup_handlers(chan);
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AST_LIST_HEAD_INIT_NOLOCK(handlers);
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}
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void ast_pbx_hangup_handler_destroy(struct ast_channel *chan)
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{
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struct ast_hangup_handler_list *handlers;
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struct ast_hangup_handler *h_handler;
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ast_channel_lock(chan);
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/* Get rid of each of the hangup handlers on the channel */
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handlers = ast_channel_hangup_handlers(chan);
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while ((h_handler = AST_LIST_REMOVE_HEAD(handlers, node))) {
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ast_free(h_handler);
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}
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ast_channel_unlock(chan);
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}
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int ast_pbx_hangup_handler_pop(struct ast_channel *chan)
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{
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struct ast_hangup_handler_list *handlers;
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struct ast_hangup_handler *h_handler;
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ast_channel_lock(chan);
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handlers = ast_channel_hangup_handlers(chan);
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h_handler = AST_LIST_REMOVE_HEAD(handlers, node);
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if (h_handler) {
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publish_hangup_handler_message("pop", chan, h_handler->args);
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}
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ast_channel_unlock(chan);
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if (h_handler) {
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ast_free(h_handler);
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return 1;
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}
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return 0;
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}
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void ast_pbx_hangup_handler_push(struct ast_channel *chan, const char *handler)
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{
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struct ast_hangup_handler_list *handlers;
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struct ast_hangup_handler *h_handler;
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const char *expanded_handler;
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if (ast_strlen_zero(handler)) {
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return;
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}
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expanded_handler = ast_app_expand_sub_args(chan, handler);
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if (!expanded_handler) {
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return;
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}
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h_handler = ast_malloc(sizeof(*h_handler) + 1 + strlen(expanded_handler));
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if (!h_handler) {
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ast_free((char *) expanded_handler);
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return;
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}
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strcpy(h_handler->args, expanded_handler);/* Safe */
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ast_free((char *) expanded_handler);
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ast_channel_lock(chan);
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handlers = ast_channel_hangup_handlers(chan);
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AST_LIST_INSERT_HEAD(handlers, h_handler, node);
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publish_hangup_handler_message("push", chan, h_handler->args);
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ast_channel_unlock(chan);
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}
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#define HANDLER_FORMAT "%-30s %s\n"
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/*!
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* \internal
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* \brief CLI output the hangup handler headers.
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* \since 11.0
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*
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* \param fd CLI file descriptor to use.
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*
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* \return Nothing
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*/
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static void ast_pbx_hangup_handler_headers(int fd)
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{
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ast_cli(fd, HANDLER_FORMAT, "Channel", "Handler");
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}
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/*!
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* \internal
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* \brief CLI output the channel hangup handlers.
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* \since 11.0
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*
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* \param fd CLI file descriptor to use.
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* \param chan Channel to show hangup handlers.
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*
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* \return Nothing
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*/
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static void ast_pbx_hangup_handler_show(int fd, struct ast_channel *chan)
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{
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struct ast_hangup_handler_list *handlers;
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struct ast_hangup_handler *h_handler;
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int first = 1;
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ast_channel_lock(chan);
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handlers = ast_channel_hangup_handlers(chan);
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AST_LIST_TRAVERSE(handlers, h_handler, node) {
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ast_cli(fd, HANDLER_FORMAT, first ? ast_channel_name(chan) : "", h_handler->args);
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first = 0;
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}
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ast_channel_unlock(chan);
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}
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/*
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* \brief 'show hanguphandlers <channel>' CLI command implementation function...
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*/
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static char *handle_show_hangup_channel(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
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{
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struct ast_channel *chan;
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switch (cmd) {
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case CLI_INIT:
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e->command = "core show hanguphandlers";
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e->usage =
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"Usage: core show hanguphandlers <channel>\n"
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" Show hangup handlers of a specified channel.\n";
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return NULL;
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case CLI_GENERATE:
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return ast_complete_channels(a->line, a->word, a->pos, a->n, e->args);
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}
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if (a->argc < 4) {
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return CLI_SHOWUSAGE;
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}
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chan = ast_channel_get_by_name(a->argv[3]);
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if (!chan) {
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ast_cli(a->fd, "Channel does not exist.\n");
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return CLI_FAILURE;
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}
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ast_pbx_hangup_handler_headers(a->fd);
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ast_pbx_hangup_handler_show(a->fd, chan);
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ast_channel_unref(chan);
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return CLI_SUCCESS;
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}
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/*
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* \brief 'show hanguphandlers all' CLI command implementation function...
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*/
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static char *handle_show_hangup_all(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
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{
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struct ast_channel_iterator *iter;
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struct ast_channel *chan;
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switch (cmd) {
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case CLI_INIT:
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e->command = "core show hanguphandlers all";
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e->usage =
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"Usage: core show hanguphandlers all\n"
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" Show hangup handlers for all channels.\n";
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return NULL;
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case CLI_GENERATE:
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return ast_complete_channels(a->line, a->word, a->pos, a->n, e->args);
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}
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if (a->argc < 4) {
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return CLI_SHOWUSAGE;
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}
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iter = ast_channel_iterator_all_new();
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if (!iter) {
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return CLI_FAILURE;
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}
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ast_pbx_hangup_handler_headers(a->fd);
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for (; (chan = ast_channel_iterator_next(iter)); ast_channel_unref(chan)) {
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ast_pbx_hangup_handler_show(a->fd, chan);
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}
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ast_channel_iterator_destroy(iter);
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return CLI_SUCCESS;
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}
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static struct ast_cli_entry cli[] = {
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AST_CLI_DEFINE(handle_show_hangup_all, "Show hangup handlers of all channels"),
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AST_CLI_DEFINE(handle_show_hangup_channel, "Show hangup handlers of a specified channel"),
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};
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static void unload_pbx_hangup_handler(void)
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{
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ast_cli_unregister_multiple(cli, ARRAY_LEN(cli));
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}
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int load_pbx_hangup_handler(void)
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{
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ast_cli_register_multiple(cli, ARRAY_LEN(cli));
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ast_register_cleanup(unload_pbx_hangup_handler);
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return 0;
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}
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