Git does not support the ability to replace a token with a version string during check-in. While it does have support for replacing a token on clone, this is somewhat sub-optimal: the token is replaced with the object hash, which is not particularly easy for human consumption. What's more, in practice, the source file version was often not terribly useful. Generally, when triaging bugs, the overall version of Asterisk is far more useful than an individual SVN version of a file. As a result, this patch removes Asterisk's support for showing source file versions. Specifically, it does the following: * Rename ASTERISK_FILE_VERSION macro to ASTERISK_REGISTER_FILE, and remove passing the version in with the macro. Other facilities than 'core show file version' make use of the file names, such as setting a debug level only on a specific file. As such, the act of registering source files with the Asterisk core still has use. The macro rename now reflects the new macro purpose. * main/asterisk: - Refactor the file_version structure to reflect that it no longer tracks a version field. - Remove the "core show file version" CLI command. Without the file version, it is no longer useful. - Remove the ast_file_version_find function. The file version is no longer tracked. - Rename ast_register_file_version/ast_unregister_file_version to ast_register_file/ast_unregister_file, respectively. * main/manager: Remove value from the Version key of the ModuleCheck Action. The actual key itself has not been removed, as doing so would absolutely constitute a backwards incompatible change. However, since the file version is no longer tracked, there is no need to attempt to include it in the Version key. * UPGRADE: Add notes for: - Modification to the ModuleCheck AMI Action - Removal of the "core show file version" CLI command Change-Id: I6cf0ff280e1668bf4957dc21f32a5ff43444a40e
363 lines
10 KiB
C
363 lines
10 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright 2004 - 2005, Anthony Minessale <anthmct@yahoo.com>
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*
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* Anthony Minessale <anthmct@yahoo.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 While Loop Implementation
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*
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* \author Anthony Minessale <anthmct@yahoo.com>
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*
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* \ingroup applications
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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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ASTERISK_REGISTER_FILE()
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/channel.h"
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/*** DOCUMENTATION
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<application name="While" language="en_US">
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<synopsis>
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Start a while loop.
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</synopsis>
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<syntax>
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<parameter name="expr" required="true" />
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</syntax>
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<description>
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<para>Start a While Loop. Execution will return to this point when
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<literal>EndWhile()</literal> is called until expr is no longer true.</para>
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</description>
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<see-also>
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<ref type="application">EndWhile</ref>
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<ref type="application">ExitWhile</ref>
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<ref type="application">ContinueWhile</ref>
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</see-also>
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</application>
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<application name="EndWhile" language="en_US">
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<synopsis>
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End a while loop.
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</synopsis>
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<syntax />
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<description>
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<para>Return to the previous called <literal>While()</literal>.</para>
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</description>
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<see-also>
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<ref type="application">While</ref>
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<ref type="application">ExitWhile</ref>
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<ref type="application">ContinueWhile</ref>
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</see-also>
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</application>
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<application name="ExitWhile" language="en_US">
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<synopsis>
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End a While loop.
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</synopsis>
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<syntax />
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<description>
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<para>Exits a <literal>While()</literal> loop, whether or not the conditional has been satisfied.</para>
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</description>
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<see-also>
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<ref type="application">While</ref>
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<ref type="application">EndWhile</ref>
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<ref type="application">ContinueWhile</ref>
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</see-also>
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</application>
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<application name="ContinueWhile" language="en_US">
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<synopsis>
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Restart a While loop.
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</synopsis>
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<syntax />
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<description>
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<para>Returns to the top of the while loop and re-evaluates the conditional.</para>
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</description>
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<see-also>
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<ref type="application">While</ref>
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<ref type="application">EndWhile</ref>
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<ref type="application">ExitWhile</ref>
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</see-also>
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</application>
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***/
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static char *start_app = "While";
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static char *stop_app = "EndWhile";
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static char *exit_app = "ExitWhile";
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static char *continue_app = "ContinueWhile";
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#define VAR_SIZE 64
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static const char *get_index(struct ast_channel *chan, const char *prefix, int idx) {
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char varname[VAR_SIZE];
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snprintf(varname, VAR_SIZE, "%s_%d", prefix, idx);
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return pbx_builtin_getvar_helper(chan, varname);
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}
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static struct ast_exten *find_matching_priority(struct ast_context *c, const char *exten, int priority, const char *callerid)
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{
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struct ast_exten *e;
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struct ast_include *i;
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struct ast_context *c2;
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for (e=ast_walk_context_extensions(c, NULL); e; e=ast_walk_context_extensions(c, e)) {
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if (ast_extension_match(ast_get_extension_name(e), exten)) {
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int needmatch = ast_get_extension_matchcid(e);
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if ((needmatch && ast_extension_match(ast_get_extension_cidmatch(e), callerid)) ||
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(!needmatch)) {
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/* This is the matching extension we want */
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struct ast_exten *p;
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for (p=ast_walk_extension_priorities(e, NULL); p; p=ast_walk_extension_priorities(e, p)) {
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if (priority != ast_get_extension_priority(p))
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continue;
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return p;
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}
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}
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}
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}
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/* No match; run through includes */
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for (i=ast_walk_context_includes(c, NULL); i; i=ast_walk_context_includes(c, i)) {
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for (c2=ast_walk_contexts(NULL); c2; c2=ast_walk_contexts(c2)) {
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if (!strcmp(ast_get_context_name(c2), ast_get_include_name(i))) {
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e = find_matching_priority(c2, exten, priority, callerid);
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if (e)
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return e;
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}
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}
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}
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return NULL;
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}
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static int find_matching_endwhile(struct ast_channel *chan)
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{
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struct ast_context *c;
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int res=-1;
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if (ast_rdlock_contexts()) {
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ast_log(LOG_ERROR, "Failed to lock contexts list\n");
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return -1;
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}
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for (c=ast_walk_contexts(NULL); c; c=ast_walk_contexts(c)) {
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struct ast_exten *e;
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if (!ast_rdlock_context(c)) {
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if (!strcmp(ast_get_context_name(c), ast_channel_context(chan))) {
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/* This is the matching context we want */
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int cur_priority = ast_channel_priority(chan) + 1, level=1;
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for (e = find_matching_priority(c, ast_channel_exten(chan), cur_priority,
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S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
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e;
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e = find_matching_priority(c, ast_channel_exten(chan), ++cur_priority,
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S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
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if (!strcasecmp(ast_get_extension_app(e), "WHILE")) {
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level++;
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} else if (!strcasecmp(ast_get_extension_app(e), "ENDWHILE")) {
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level--;
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}
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if (level == 0) {
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res = cur_priority;
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break;
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}
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}
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}
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ast_unlock_context(c);
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if (res > 0) {
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break;
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}
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}
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}
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ast_unlock_contexts();
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return res;
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}
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static int _while_exec(struct ast_channel *chan, const char *data, int end)
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{
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int res=0;
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const char *while_pri = NULL;
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char *my_name = NULL;
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const char *condition = NULL, *label = NULL;
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char varname[VAR_SIZE], end_varname[VAR_SIZE];
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const char *prefix = "WHILE";
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size_t size=0;
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int used_index_i = -1, x=0;
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char used_index[VAR_SIZE] = "0", new_index[VAR_SIZE] = "0";
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if (!chan) {
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/* huh ? */
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return -1;
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}
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#if 0
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/* don't want run away loops if the chan isn't even up
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this is up for debate since it slows things down a tad ......
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Debate is over... this prevents While/EndWhile from working
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within the "h" extension. Not good.
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*/
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if (ast_waitfordigit(chan,1) < 0)
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return -1;
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#endif
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for (x=0;;x++) {
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if (get_index(chan, prefix, x)) {
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used_index_i = x;
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} else
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break;
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}
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snprintf(used_index, VAR_SIZE, "%d", used_index_i);
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snprintf(new_index, VAR_SIZE, "%d", used_index_i + 1);
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if (!end)
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condition = ast_strdupa(data);
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size = strlen(ast_channel_context(chan)) + strlen(ast_channel_exten(chan)) + 32;
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my_name = ast_alloca(size);
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memset(my_name, 0, size);
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snprintf(my_name, size, "%s_%s_%d", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan));
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ast_channel_lock(chan);
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if (end) {
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label = used_index;
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} else if (!(label = pbx_builtin_getvar_helper(chan, my_name))) {
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label = new_index;
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pbx_builtin_setvar_helper(chan, my_name, label);
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}
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snprintf(varname, VAR_SIZE, "%s_%s", prefix, label);
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if ((while_pri = pbx_builtin_getvar_helper(chan, varname)) && !end) {
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while_pri = ast_strdupa(while_pri);
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snprintf(end_varname,VAR_SIZE,"END_%s",varname);
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}
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ast_channel_unlock(chan);
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if ((!end && !pbx_checkcondition(condition)) || (end == 2)) {
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/* Condition Met (clean up helper vars) */
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const char *goto_str;
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pbx_builtin_setvar_helper(chan, varname, NULL);
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pbx_builtin_setvar_helper(chan, my_name, NULL);
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snprintf(end_varname,VAR_SIZE,"END_%s",varname);
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ast_channel_lock(chan);
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if ((goto_str = pbx_builtin_getvar_helper(chan, end_varname))) {
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ast_parseable_goto(chan, goto_str);
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pbx_builtin_setvar_helper(chan, end_varname, NULL);
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} else {
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int pri = find_matching_endwhile(chan);
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if (pri > 0) {
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ast_verb(3, "Jumping to priority %d\n", pri);
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ast_channel_priority_set(chan, pri);
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} else {
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ast_log(LOG_WARNING, "Couldn't find matching EndWhile? (While at %s@%s priority %d)\n", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan));
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}
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}
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ast_channel_unlock(chan);
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return res;
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}
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if (!end && !while_pri) {
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char *goto_str;
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size = strlen(ast_channel_context(chan)) + strlen(ast_channel_exten(chan)) + 32;
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goto_str = ast_alloca(size);
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memset(goto_str, 0, size);
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snprintf(goto_str, size, "%s,%s,%d", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan));
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pbx_builtin_setvar_helper(chan, varname, goto_str);
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}
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else if (end && while_pri) {
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/* END of loop */
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snprintf(end_varname, VAR_SIZE, "END_%s", varname);
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if (! pbx_builtin_getvar_helper(chan, end_varname)) {
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char *goto_str;
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size = strlen(ast_channel_context(chan)) + strlen(ast_channel_exten(chan)) + 32;
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goto_str = ast_alloca(size);
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memset(goto_str, 0, size);
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snprintf(goto_str, size, "%s,%s,%d", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan)+1);
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pbx_builtin_setvar_helper(chan, end_varname, goto_str);
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}
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ast_parseable_goto(chan, while_pri);
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}
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return res;
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}
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static int while_start_exec(struct ast_channel *chan, const char *data) {
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return _while_exec(chan, data, 0);
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}
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static int while_end_exec(struct ast_channel *chan, const char *data) {
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return _while_exec(chan, data, 1);
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}
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static int while_exit_exec(struct ast_channel *chan, const char *data) {
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return _while_exec(chan, data, 2);
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}
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static int while_continue_exec(struct ast_channel *chan, const char *data)
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{
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int x;
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const char *prefix = "WHILE", *while_pri=NULL;
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for (x = 0; ; x++) {
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const char *tmp = get_index(chan, prefix, x);
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if (tmp)
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while_pri = tmp;
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else
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break;
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}
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if (while_pri)
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ast_parseable_goto(chan, while_pri);
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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(start_app);
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res |= ast_unregister_application(stop_app);
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res |= ast_unregister_application(exit_app);
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res |= ast_unregister_application(continue_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(start_app, while_start_exec);
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res |= ast_register_application_xml(stop_app, while_end_exec);
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res |= ast_register_application_xml(exit_app, while_exit_exec);
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res |= ast_register_application_xml(continue_app, while_continue_exec);
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return res;
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "While Loops and Conditional Execution");
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