logging.c

/*
 * gpio-watch, a tool for running scripts in response to gpio events
 * Copyright (C) 2014 Lars Kellogg-Stedman <lars@oddbit.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 3 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, see <http://www.gnu.org/licenses/>.
 */

#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>

#include "logging.h"

int loglevel = 1;

void logprint(const char *fmt, ...) {
        va_list args;
        va_start(args, fmt);
        vfprintf(stderr, fmt, args);
        fflush(stderr);
}

// logging functions
const char *logtime(void) {
        static char buf[100];

        struct timeval tv;
        gettimeofday(&tv, NULL);
        strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&tv.tv_sec));

        return buf;
}