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	ASTERISK-23919 #close Reported by Malcolm Davenport Review: https://reviewboard.asterisk.org/r/3802 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419592 65c4cc65-6c06-0410-ace0-fbb531ad65f3
		
			
				
	
	
		
			126 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			126 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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| 
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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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| 
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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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| 
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| #include "asterisk.h"
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| 
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| ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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| 
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| #include <pjsip.h>
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| #include <pj/log.h>
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| 
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| #include "asterisk/logger.h"
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| #include "asterisk/module.h"
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| 
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| static pj_log_func *log_cb_orig;
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| static unsigned decor_orig;
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| static int load_module(void)
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| {
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| 	pj_init();
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| 
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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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| 
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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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| 
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| 	return AST_MODULE_LOAD_SUCCESS;
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| }
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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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| 
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| 	pj_shutdown();
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| 
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| 	return 0;
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| }
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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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| 	.support_level = AST_MODULE_SUPPORT_CORE,
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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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