This patch adds 'const' tags to a number of Asterisk APIs where they are appropriate (where the API already demanded that the function argument not be modified, but the compiler was not informed of that fact). The list includes: - CLI command handlers - CLI command handler arguments - AGI command handlers - AGI command handler arguments - Dialplan application handler arguments - Speech engine API function arguments In addition, various file-scope and function-scope constant arrays got 'const' and/or 'static' qualifiers where they were missing. Review: https://reviewboard.asterisk.org/r/251/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@196072 65c4cc65-6c06-0410-ace0-fbb531ad65f3
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2009, Digium, Inc.
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*
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* Russell Bryant <russell@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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/*!
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* \file
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* \brief Playtones application
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*
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* \author Russell Bryant <russell@digium.com>
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*
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* \ingroup applications
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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#include "asterisk/channel.h"
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#include "asterisk/indications.h"
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static const char playtones_app[] = "PlayTones";
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static const char stopplaytones_app[] = "StopPlayTones";
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/*** DOCUMENTATION
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<application name="PlayTones" language="en_US">
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<synopsis>
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Play a tone list.
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</synopsis>
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<syntax>
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<parameter name="arg" required="true">
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<para>Arg is either the tone name defined in the <filename>indications.conf</filename>
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configuration file, or a directly specified list of frequencies and durations.</para>
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</parameter>
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</syntax>
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<description>
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<para>Plays a tone list. Execution will continue with the next step in the dialplan
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immediately while the tones continue to play.</para>
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<para>See the sample <filename>indications.conf</filename> for a description of the
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specification of a tonelist.</para>
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</description>
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<see-also>
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<ref type="application">StopPlayTones</ref>
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</see-also>
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</application>
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<application name="StopPlayTones" language="en_US">
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<synopsis>
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Stop playing a tone list.
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</synopsis>
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<syntax />
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<description>
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<para>Stop playing a tone list, initiated by PlayTones().</para>
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</description>
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<see-also>
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<ref type="application">PlayTones</ref>
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</see-also>
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</application>
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***/
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static int handle_playtones(struct ast_channel *chan, const char *data)
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{
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struct ast_tone_zone_sound *ts;
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int res;
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const char *str = data;
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if (ast_strlen_zero(str)) {
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ast_log(LOG_NOTICE,"Nothing to play\n");
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return -1;
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}
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ts = ast_get_indication_tone(chan->zone, str);
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if (ts) {
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res = ast_playtones_start(chan, 0, ts->data, 0);
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ts = ast_tone_zone_sound_unref(ts);
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} else {
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res = ast_playtones_start(chan, 0, str, 0);
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}
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if (res) {
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ast_log(LOG_NOTICE, "Unable to start playtones\n");
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}
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return res;
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}
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static int handle_stopplaytones(struct ast_channel *chan, const char *data)
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{
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ast_playtones_stop(chan);
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return 0;
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}
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static int unload_module(void)
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{
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int res;
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res = ast_unregister_application(playtones_app);
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res |= ast_unregister_application(stopplaytones_app);
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return res;
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}
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static int load_module(void)
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{
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int res;
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res = ast_register_application_xml(playtones_app, handle_playtones);
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res |= ast_register_application_xml(stopplaytones_app, handle_stopplaytones);
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return res ? AST_MODULE_LOAD_DECLINE : AST_MODULE_LOAD_SUCCESS;
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Playtones Application");
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