/*
 * Copyright (C) 2013 Glyptodon LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "config.h"

#include "timestamp.h"

#include <sys/time.h>

#if defined(HAVE_CLOCK_GETTIME) || defined(HAVE_NANOSLEEP)
#include <time.h>
#endif

guac_timestamp guac_timestamp_current() {

#ifdef HAVE_CLOCK_GETTIME

    struct timespec current;

    /* Get current time */
    clock_gettime(CLOCK_REALTIME, &current);
    
    /* Calculate milliseconds */
    return (guac_timestamp) current.tv_sec * 1000 + current.tv_nsec / 1000000;

#else

    struct timeval current;

    /* Get current time */
    gettimeofday(&current, NULL);
    
    /* Calculate milliseconds */
    return (guac_timestamp) current.tv_sec * 1000 + current.tv_usec / 1000;

#endif

}

void guac_timestamp_msleep(int duration) {

    /* Split milliseconds into equivalent seconds + nanoseconds */
    struct timespec sleep_period = {
        .tv_sec  =  duration / 1000,
        .tv_nsec = (duration % 1000) * 1000000
    };

    /* Sleep for specified interval */
    nanosleep(&sleep_period, NULL);

}