Various modules solving daily C developer tasks
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

104 lines
1.8 KiB

3 years ago
/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file log.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief cStuff log module source file
*
* @see https://lowenware.com/
*/
#include <time.h>
#include "log.h"
void
cstuff_log_init(CStuffLog self, int level)
3 years ago
{
self->target = stderr;
self->level = level;
}
void
cstuff_log_release(CStuffLog self)
{
if (self->target != stderr)
fclose(self->target);
}
CStuffRetcode
cstuff_log_set_file(CStuffLog self, const char *filename)
{
FILE *fp;
if (!(fp = fopen(filename, "a")))
return CSTUFF_SYSCALL_ERROR;
self->target = fp;
return CSTUFF_SUCCESS;
}
int
cstuff_log_printf(CStuffLog self, int level, const char *format, ...)
{
int result;
va_list vl;
va_start(vl, format);
result = cstuff_log_vprintf(self, level, format, vl);
va_end(vl);
return result;
}
int
cstuff_log_vprintf(CStuffLog self, int level, const char *format, va_list vl)
{
int result;
if (self->level & level) {
FILE *f = self->target;
char *label;
time_t rawtime;
char strtime[32+1];
struct tm timeinfo;
time(&rawtime);
localtime_r(&rawtime, &timeinfo);
strftime(strtime, 32, "%F %T", &timeinfo);
switch (level)
{
case CSTUFF_LOG_ERROR:
label = "!!";
break;
case CSTUFF_LOG_ALERT:
label = "~!";
break;
case CSTUFF_LOG_DEBUG:
label = "**";
break;
default:
label = "--";
}
result = fprintf(f, "%s %s ", strtime, label);
result += vfprintf(f, format, vl);
fputc('\n', f);
result++;
fflush(f);
} else {
result = 0;
}
return result;
}