125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* David M. Lee, II <dlee@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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/*! \file
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*
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* \brief Bridge PJSIP logging to Asterisk logging.
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* \author David M. Lee, II <dlee@digium.com>
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*
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* PJSIP logging doesn't exactly match Asterisk logging, but mapping the two is
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* not too bad. PJSIP log levels are identified by a single int. Limits are
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* not specified by PJSIP, but their implementation used 1 through 6.
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*
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* The mapping is as follows:
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* - 0: LOG_ERROR
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* - 1: LOG_ERROR
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* - 2: LOG_WARNING
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* - 3 and above: equivalent to ast_debug(level, ...) for res_pjsip.so
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*/
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/*** MODULEINFO
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<depend>pjproject</depend>
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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_FILE_VERSION(__FILE__, "$Revision$")
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#include <pjsip.h>
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#include <pj/log.h>
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#include "asterisk/logger.h"
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#include "asterisk/module.h"
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static pj_log_func *log_cb_orig;
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static unsigned decor_orig;
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static void log_cb(int level, const char *data, int len)
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{
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int ast_level;
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/* PJSIP doesn't provide much in the way of source info */
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const char * log_source = "pjsip";
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int log_line = 0;
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const char *log_func = "<?>";
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int mod_level;
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/* Lower number indicates higher importance */
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switch (level) {
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case 0: /* level zero indicates fatal error, according to docs */
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case 1: /* 1 seems to be used for errors */
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ast_level = __LOG_ERROR;
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break;
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case 2: /* 2 seems to be used for warnings and errors */
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ast_level = __LOG_WARNING;
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break;
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default:
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ast_level = __LOG_DEBUG;
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/* For levels 3 and up, obey the debug level for res_pjsip */
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mod_level = ast_opt_dbg_module ?
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ast_debug_get_by_module("res_pjsip") : 0;
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if (option_debug < level && mod_level < level) {
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return;
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}
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break;
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}
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/* PJSIP uses indention to indicate function call depth. We'll prepend
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* log statements with a tab so they'll have a better shot at lining
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* up */
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ast_log(ast_level, log_source, log_line, log_func, "\t%s\n", data);
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}
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static int load_module(void)
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{
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pj_init();
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decor_orig = pj_log_get_decor();
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log_cb_orig = pj_log_get_log_func();
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ast_debug(3, "Forwarding PJSIP logger to Asterisk logger\n");
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/* SENDER prepends the source to the log message. This could be a
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* filename, object reference, or simply a string
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*
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* INDENT is assumed to be on by most log statements in PJSIP itself.
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*/
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pj_log_set_decor(PJ_LOG_HAS_SENDER | PJ_LOG_HAS_INDENT);
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pj_log_set_log_func(log_cb);
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int unload_module(void)
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{
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pj_log_set_log_func(log_cb_orig);
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pj_log_set_decor(decor_orig);
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pj_shutdown();
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return 0;
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}
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/* While we don't really export global symbols, we want to load before other
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* modules that do */
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS | AST_MODFLAG_LOAD_ORDER, "PJSIP Log Forwarder",
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_CHANNEL_DEPEND - 6,
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);
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