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/*
Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include <locale.h>
#include <string.h>
#include <stdlib.h>
#include "logging.h"
static pthread_mutex_t logfile_mutex;
static char *filename = NULL;
static uint8_t logrotate = 0;
static FILE *logfile = NULL;
static gf_loglevel_t loglevel = GF_LOG_MAX;
gf_loglevel_t gf_log_loglevel; /* extern'd */
FILE *gf_log_logfile;
void
gf_log_logrotate (int signum)
{
logrotate = 1;
}
gf_loglevel_t
gf_log_get_loglevel (void)
{
return loglevel;
}
void
gf_log_set_loglevel (gf_loglevel_t level)
{
gf_log_loglevel = loglevel = level;
}
void
gf_log_fini (void)
{
pthread_mutex_destroy (&logfile_mutex);
}
int
gf_log_init (const char *file)
{
if (!file){
fprintf (stderr, "gf_log_init: no filename specified\n");
return -1;
}
pthread_mutex_init (&logfile_mutex, NULL);
filename = strdup (file);
if (!filename) {
fprintf (stderr, "gf_log_init: strdup error\n");
return -1;
}
logfile = fopen (file, "a");
if (!logfile){
fprintf (stderr,
"gf_log_init: failed to open logfile \"%s\" (%s)\n",
file,
strerror (errno));
return -1;
}
gf_log_logfile = logfile;
return 0;
}
void
gf_log_lock (void)
{
pthread_mutex_lock (&logfile_mutex);
}
void
gf_log_unlock (void)
{
pthread_mutex_unlock (&logfile_mutex);
}
void
gf_log_cleanup (void)
{
pthread_mutex_destroy (&logfile_mutex);
}
int
_gf_log (const char *domain, const char *file, const char *function, int line,
gf_loglevel_t level, const char *fmt, ...)
{
const char *basename = NULL;
FILE *new_logfile = NULL;
va_list ap;
time_t utime = 0;
struct tm *tm = NULL;
char timestr[256];
static char *level_strings[] = {"N", /* NONE */
"T", /* TRACE */
"C", /* CRITICAL */
"E", /* ERROR */
"W", /* WARNING */
"N", /* TRACE (GF_LOG_NORMAL) */
"D", /* DEBUG */
""};
if (!domain || !file || !function || !fmt) {
fprintf (stderr,
"logging: %s:%s():%d: invalid argument\n",
__FILE__, __PRETTY_FUNCTION__, __LINE__);
return -1;
}
if (!logfile) {
fprintf (stderr, "no logfile set\n");
return (-1);
}
if (logrotate) {
logrotate = 0;
new_logfile = fopen (filename, "a");
if (!new_logfile) {
gf_log ("logrotate", GF_LOG_CRITICAL,
"failed to open logfile %s (%s)",
filename, strerror (errno));
goto log;
}
fclose (logfile);
gf_log_logfile = logfile = new_logfile;
}
log:
utime = time (NULL);
tm = localtime (&utime);
if (level > loglevel) {
goto out;
}
pthread_mutex_lock (&logfile_mutex);
{
va_start (ap, fmt);
strftime (timestr, 256, "%Y-%m-%d %H:%M:%S", tm);
basename = strrchr (file, '/');
if (basename)
basename++;
else
basename = file;
fprintf (logfile, "%s %s [%s:%d:%s] %s: ",
timestr, level_strings[level],
basename, line, function,
domain);
vfprintf (logfile, fmt, ap);
va_end (ap);
fprintf (logfile, "\n");
fflush (logfile);
}
pthread_mutex_unlock (&logfile_mutex);
out:
return (0);
}
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