source: freeDiameter/libfreeDiameter/log.c @ 2:d8ce06172629

/*********************************************************************************************************
* Software License Agreement (BSD License)                                                               *
* Author: Sebastien Decugis <sdecugis@nict.go.jp>                                                        *
*                                                                                                        *
* Copyright (c) 2009, WIDE Project and NICT                                                              *
* All rights reserved.                                                                                   *
*                                                                                                        *
* Redistribution and use of this software in source and binary forms, with or without modification, are  *
* permitted provided that the following conditions are met:                                              *
*                                                                                                        *
* * Redistributions of source code must retain the above                                                 *
*   copyright notice, this list of conditions and the                                                    *
*   following disclaimer.                                                                                *
*                                                                                                        *
* * Redistributions in binary form must reproduce the above                                              *
*   copyright notice, this list of conditions and the                                                    *
*   following disclaimer in the documentation and/or other                                               *
*   materials provided with the distribution.                                                            *
*                                                                                                        *
* * Neither the name of the WIDE Project or NICT nor the                                                 *
*   names of its contributors may be used to endorse or                                                  *
*   promote products derived from this software without                                                  *
*   specific prior written permission of WIDE Project and                                                *
*   NICT.                                                                                                *
*                                                                                                        *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT     *
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS    *
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF   *
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                                                             *
*********************************************************************************************************/

#include "libfD.h"

#include <stdarg.h>

pthread_mutex_t fd_log_lock = PTHREAD_MUTEX_INITIALIZER;
pthread_key_t   fd_log_thname;
int fd_g_debug_lvl = 0;

/* Log a debug message */
void fd_log_debug ( char * format, ... )
{
        va_list ap;
        
        (void)pthread_mutex_lock(&fd_log_lock);
        
        pthread_cleanup_push(fd_cleanup_mutex, &fd_log_lock);
        
        va_start(ap, format);
        vfprintf( stdout, format, ap);
        va_end(ap);
        fflush(stdout);

        pthread_cleanup_pop(0);
        
        (void)pthread_mutex_unlock(&fd_log_lock);
}

/* Function to set the thread's friendly name */
void fd_log_threadname ( char * name )
{
        void * val = NULL;
        
        TRACE_ENTRY("%p(%s)", name, name?:"/");
        
        /* First, check if a value is already assigned to the current thread */
        val = pthread_getspecific(fd_log_thname);
        if (val != NULL) {
                TRACE_DEBUG(FULL, "Freeing old thread name: %s", val);
                free(val);
        }
        
        /* Now create the new string */
        if (name == NULL) {
                CHECK_POSIX_DO( pthread_setspecific(fd_log_thname, NULL), /* continue */);
                return;
        }
        
        CHECK_MALLOC_DO( val = strdup(name), return );
        
        CHECK_POSIX_DO( pthread_setspecific(fd_log_thname, val), /* continue */);
        return;
}

/* Write current time into a buffer */
char * fd_log_time ( char * buf, size_t len )
{
        int ret;
        size_t offset = 0;
        struct timespec tp;
        struct tm tm;
        
        /* Get current time */
        ret = clock_gettime(CLOCK_REALTIME, &tp);
        if (ret != 0) {
                snprintf(buf, len, "%s", strerror(ret));
                return buf;
        }
        
        offset += strftime(buf + offset, len - offset, "%D,%T", localtime_r( &tp.tv_sec , &tm ));
        offset += snprintf(buf + offset, len - offset, ".%6.6ld", tp.tv_nsec / 1000);

        return buf;
}