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/*
* Copyright (C) 2010-2012 jeanfi@gmail.com
*
* This program 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 2 of the
* License, or (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <locale.h>
#include <libintl.h>
#define _(str) gettext(str)
#include <stdarg.h>
#include <stdio.h>
#include <sys/time.h>
#include "log.h"
static FILE *file;
int log_level = LOG_WARN;
void log_open(const char *path)
{
file = fopen(path, "a");
if (!file)
log_printf(LOG_ERR, _("Cannot open log file: %s"), path);
}
void log_close()
{
if (!file)
return ;
fclose(file);
file = NULL;
}
#define LOG_BUFFER 4096
static void vlogf(int lvl, const char *fmt, va_list ap)
{
struct timeval tv;
char buffer[1 + LOG_BUFFER];
char *lvl_str;
FILE *stdf;
if (lvl > LOG_INFO && (!file || lvl > log_level))
return ;
vsnprintf(buffer, LOG_BUFFER, fmt, ap);
buffer[LOG_BUFFER] = '\0';
if (gettimeofday(&tv, NULL) != 0)
timerclear(&tv);
switch (lvl) {
case LOG_WARN:
lvl_str = "[WARN]";
break;
case LOG_ERR:
lvl_str = "[ERR]";
break;
case LOG_DEBUG:
lvl_str = "[DEBUG]";
break;
case LOG_INFO:
lvl_str = "[INFO]";
break;
default:
lvl_str = "[??]";
}
if (file && lvl <= log_level) {
fprintf(file, "[%ld] %s %s\n", tv.tv_sec, lvl_str, buffer);
fflush(file);
}
if (lvl <= LOG_INFO) {
if (lvl == LOG_WARN || lvl == LOG_ERR)
stdf = stderr;
else
stdf = stdout;
fprintf(stdf, "[%ld] %s %s\n", tv.tv_sec, lvl_str, buffer);
}
}
void log_printf(int lvl, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vlogf(lvl, fmt, ap);
va_end(ap);
}
void log_debug(const char *fmt, ...)
{
va_list ap;
if (log_level < LOG_DEBUG)
return ;
va_start(ap, fmt);
vlogf(LOG_DEBUG, fmt, ap);
va_end(ap);
}
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