## liexusong / bolt .gitee-modal { width: 500px !important; }

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log.c 2.84 KB
liexusong authored 2015-08-28 12:41 . fix bugs
/*
* Bolt - The Realtime Image Compress System
* Copyright (c) 2015 - 2016, Liexusong <280259971@qq.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <time.h>
#include "log.h"

static char *bolt_error_titles[BOLT_LOG_ERROR + 1] = {
};

static FILE *bolt_log_fp = NULL;
static int bolt_log_mark = BOLT_LOG_DEBUG;
static int bolt_log_initialize = 0;
static char bolt_log_buffer[4096];

int
bolt_init_log(char *file, int mark)
{
if (bolt_log_initialize) {
return 0;
}

if (mark < BOLT_LOG_DEBUG
|| mark > BOLT_LOG_ERROR)
{
return -1;
}

if (file) {
bolt_log_fp = fopen(file, "a+");
if (!bolt_log_fp) {
return -1;
}

} else {
bolt_log_fp = stderr;
}

bolt_log_mark = mark;
bolt_log_initialize = 1;

return 0;
}

void
bolt_log(int level, char *fmt, ...)
{
va_list al;
time_t current;
struct tm *dt;
int off1, off2;

if (!bolt_log_initialize
|| level < bolt_log_mark
|| level > BOLT_LOG_ERROR)
{
return;
}

/* Get current date and time */
time(&current);
dt = localtime(&current);

off1 = sprintf(bolt_log_buffer,
"[%04d-%02d-%02d %02d:%02d:%02d] %s: ",
dt->tm_year + 1900,
dt->tm_mon + 1,
dt->tm_mday,
dt->tm_hour,
dt->tm_min,
dt->tm_sec,
bolt_error_titles[level]);

va_start(al, fmt);
off2 = vsprintf(bolt_log_buffer + off1, fmt, al);
va_end(al);

bolt_log_buffer[off1 + off2] = '\n';

fwrite(bolt_log_buffer, off1 + off2 + 1, 1, bolt_log_fp);
}

void bolt_destroy_log()
{
if (!bolt_log_initialize) {
return;
}

if (bolt_log_fp != stderr) {
fclose(bolt_log_fp);
}
}