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
227 lines
5.7 KiB
C
227 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) 2009, Digium, Inc.
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*
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* Steve Murphy <murf@digium.com>
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* much borrowed from cdr code (cdr_custom.c), author Mark Spencer
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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 Custom Comma Separated Value CEL records.
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*
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* \author Steve Murphy <murf@digium.com>
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*
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* \arg See also \ref AstCEL
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*
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* Logs in LOG_DIR/cel_custom
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* \ingroup cel_drivers
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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/paths.h"
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#include "asterisk/channel.h"
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#include "asterisk/cel.h"
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#include "asterisk/module.h"
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#include "asterisk/config.h"
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#include "asterisk/pbx.h"
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#include "asterisk/utils.h"
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#include "asterisk/lock.h"
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#include "asterisk/threadstorage.h"
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#include "asterisk/strings.h"
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#define CUSTOM_LOG_DIR "/cel_custom"
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#define CONFIG "cel_custom.conf"
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AST_THREADSTORAGE(custom_buf);
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static const char name[] = "cel-custom";
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struct cel_config {
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AST_DECLARE_STRING_FIELDS(
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AST_STRING_FIELD(filename);
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AST_STRING_FIELD(format);
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);
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ast_mutex_t lock;
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AST_RWLIST_ENTRY(cel_config) list;
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};
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#define CUSTOM_BACKEND_NAME "CEL Custom CSV Logging"
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static AST_RWLIST_HEAD_STATIC(sinks, cel_config);
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static void free_config(void)
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{
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struct cel_config *sink;
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while ((sink = AST_RWLIST_REMOVE_HEAD(&sinks, list))) {
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ast_mutex_destroy(&sink->lock);
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ast_string_field_free_memory(sink);
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ast_free(sink);
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}
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}
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static int load_config(void)
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{
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struct ast_config *cfg;
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struct ast_variable *var;
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struct ast_flags config_flags = { 0 };
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int mappings = 0;
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int res = 0;
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cfg = ast_config_load(CONFIG, config_flags);
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if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
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ast_log(LOG_ERROR, "Unable to load " CONFIG ". Not logging CEL to custom CSVs.\n");
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return -1;
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}
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if (!(var = ast_variable_browse(cfg, "mappings"))) {
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ast_log(LOG_NOTICE, "No mappings found in " CONFIG ". Not logging CEL to custom CSVs.\n");
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}
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while (var) {
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if (!ast_strlen_zero(var->name) && !ast_strlen_zero(var->value)) {
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struct cel_config *sink = ast_calloc_with_stringfields(1, struct cel_config, 1024);
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if (!sink) {
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ast_log(LOG_ERROR, "Unable to allocate memory for configuration settings.\n");
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res = -2;
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break;
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}
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ast_string_field_build(sink, format, "%s\n", var->value);
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ast_string_field_build(sink, filename, "%s/%s/%s", ast_config_AST_LOG_DIR, name, var->name);
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ast_mutex_init(&sink->lock);
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ast_verb(3, "Added CEL CSV mapping for '%s'.\n", sink->filename);
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mappings += 1;
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AST_RWLIST_INSERT_TAIL(&sinks, sink, list);
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} else {
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ast_log(LOG_NOTICE, "Mapping must have both a filename and a format at line %d\n", var->lineno);
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}
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var = var->next;
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}
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ast_config_destroy(cfg);
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ast_verb(1, "Added CEL CSV mapping for %d files.\n", mappings);
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return res;
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}
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static void custom_log(struct ast_event *event)
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{
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struct ast_channel *dummy;
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struct ast_str *str;
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struct cel_config *config;
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/* Batching saves memory management here. Otherwise, it's the same as doing an allocation and free each time. */
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if (!(str = ast_str_thread_get(&custom_buf, 16))) {
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return;
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}
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dummy = ast_cel_fabricate_channel_from_event(event);
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if (!dummy) {
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ast_log(LOG_ERROR, "Unable to fabricate channel from CEL event.\n");
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return;
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}
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AST_RWLIST_RDLOCK(&sinks);
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AST_LIST_TRAVERSE(&sinks, config, list) {
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FILE *out;
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ast_str_substitute_variables(&str, 0, dummy, config->format);
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/* Even though we have a lock on the list, we could be being chased by
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another thread and this lock ensures that we won't step on anyone's
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toes. Once each CEL backend gets it's own thread, this lock can be
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removed. */
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ast_mutex_lock(&config->lock);
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/* Because of the absolutely unconditional need for the
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highest reliability possible in writing billing records,
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we open write and close the log file each time */
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if ((out = fopen(config->filename, "a"))) {
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fputs(ast_str_buffer(str), out);
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fflush(out); /* be particularly anal here */
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fclose(out);
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} else {
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ast_log(LOG_ERROR, "Unable to re-open master file %s : %s\n", config->filename, strerror(errno));
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}
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ast_mutex_unlock(&config->lock);
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}
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AST_RWLIST_UNLOCK(&sinks);
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ast_channel_unref(dummy);
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}
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static int unload_module(void)
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{
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if (AST_RWLIST_WRLOCK(&sinks)) {
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ast_log(LOG_ERROR, "Unable to lock sink list. Unload failed.\n");
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return -1;
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}
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free_config();
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AST_RWLIST_UNLOCK(&sinks);
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ast_cel_backend_unregister(CUSTOM_BACKEND_NAME);
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return 0;
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}
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static enum ast_module_load_result load_module(void)
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{
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if (AST_RWLIST_WRLOCK(&sinks)) {
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ast_log(LOG_ERROR, "Unable to lock sink list. Load failed.\n");
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return AST_MODULE_LOAD_FAILURE;
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}
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load_config();
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AST_RWLIST_UNLOCK(&sinks);
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if (ast_cel_backend_register(CUSTOM_BACKEND_NAME, custom_log)) {
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return AST_MODULE_LOAD_FAILURE;
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}
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int reload(void)
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{
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if (AST_RWLIST_WRLOCK(&sinks)) {
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ast_log(LOG_ERROR, "Unable to lock sink list. Load failed.\n");
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return AST_MODULE_LOAD_FAILURE;
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}
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free_config();
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load_config();
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AST_RWLIST_UNLOCK(&sinks);
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return AST_MODULE_LOAD_SUCCESS;
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Customizable Comma Separated Values CEL Backend",
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.support_level = AST_MODULE_SUPPORT_CORE,
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.load = load_module,
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.unload = unload_module,
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.reload = reload,
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.load_pri = AST_MODPRI_CDR_DRIVER,
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);
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