FREESWITCH系列之调试技巧

最新推荐文章于 2021-10-21 10:54:36 发布

原创最新推荐文章于 2021-10-21 10:54:36 发布 · 635 阅读

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本文介绍了一种在FreeSwitch中优化日志记录的方法，通过增加时间戳和线程ID来改进日志跟踪能力。具体包括调整不同模块的日志级别，并在日志输出中加入详细的时间和线程信息。

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打开日志开关

export SOFIA_DEBUG=9
export NUA_DEBUG=9
export NTA_DEBUG=9
export NEA_DEBUG=9
export TPORT_DEBUG=9
export TPORT_LOG=1
export TPORT_DUMP=/usr/local/freeswitch/log/tport_sip.log
export SOA_DEBUG=9
export IPTSEC_DEBUG=9
export SU_DEBUG=9

修改su的日志打印

增加时间和线程号的打印，方便追踪线程间的交互。修改su_log.c

void _su_llog(su_log_t *log, unsigned level, const char *file, const char *func, int line,
              char const *fmt, ...)
{
    va_list ap;
    char buf[1024];
	struct timeval tv;  
	struct timezone tz; 
    char date[80];
	struct tm* t = NULL;

	gettimeofday(&tv, &tz);
    t = localtime(&tv.tv_sec);
    snprintf(date, sizeof(date), "%d-%02d-%02d %02d:%02d:%02d.%ld",
			 t->tm_year + 1900,
			 t->tm_mon + 1,
			 t->tm_mday,
			 t->tm_hour,
			 t->tm_min,
			 t->tm_sec,
			 tv.tv_usec);
    va_start(ap, fmt);


    snprintf(buf, sizeof(buf), "%s [su_thread:%ld] %s:%d %s() %s", date, pthread_self(), file, line, func, fmt);

    _su_vllog(log, level, file, func, line, buf, ap);
    va_end(ap);
}

修改switch core的日志打印

增加线程号的打印，修改switch_log.c

SWITCH_DECLARE(void) switch_log_vprintf(switch_text_channel_t channel, const char *file, const char *func, int line,
                                        const char *userdata, switch_log_level_t level, const char *fmt, va_list ap)
{
#ifdef SWITCH_FUNC_IN_LOG
    const char *extra_fmt = "%s [%s:%ld] %s:%d %s()%c%s";
#else
    const char *extra_fmt = "%s [%s:%ld] %s:%d%c%s";
#endif
....
#ifdef SWITCH_FUNC_IN_LOG
        switch_snprintf(new_fmt, len, extra_fmt, date, switch_log_level2str(level), pthread_self(), filep, line, funcp, 128, fmt);
#else
        switch_snprintf(new_fmt, len, extra_fmt, date, switch_log_level2str(level), pthread_self(), filep, line, 128, fmt);
#endif
...
}