cscg24-guacamole

CSCG 2024 Challenge 'Guacamole Mashup'
git clone https://git.sinitax.com/sinitax/cscg24-guacamole
Log | Files | Refs | sfeed.txt

timestamp.c (1913B)

      1/*
      2 * Licensed to the Apache Software Foundation (ASF) under one
      3 * or more contributor license agreements.  See the NOTICE file
      4 * distributed with this work for additional information
      5 * regarding copyright ownership.  The ASF licenses this file
      6 * to you under the Apache License, Version 2.0 (the
      7 * "License"); you may not use this file except in compliance
      8 * with the License.  You may obtain a copy of the License at
      9 *
     10 *   http://www.apache.org/licenses/LICENSE-2.0
     11 *
     12 * Unless required by applicable law or agreed to in writing,
     13 * software distributed under the License is distributed on an
     14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     15 * KIND, either express or implied.  See the License for the
     16 * specific language governing permissions and limitations
     17 * under the License.
     18 */
     19
     20#include "config.h"
     21
     22#include "guacamole/timestamp.h"
     23
     24#include <sys/time.h>
     25
     26#if defined(HAVE_CLOCK_GETTIME) || defined(HAVE_NANOSLEEP)
     27#include <time.h>
     28#endif
     29
     30guac_timestamp guac_timestamp_current() {
     31
     32#ifdef HAVE_CLOCK_GETTIME
     33
     34    struct timespec current;
     35
     36    /* Get current time, monotonically increasing */ 
     37#ifdef CLOCK_MONOTONIC
     38    clock_gettime(CLOCK_MONOTONIC, &current);
     39#else
     40    clock_gettime(CLOCK_REALTIME, &current);
     41#endif    
     42
     43    /* Calculate milliseconds */
     44    return (guac_timestamp) current.tv_sec * 1000 + current.tv_nsec / 1000000;
     45
     46#else
     47
     48    struct timeval current;
     49
     50    /* Get current time */
     51    gettimeofday(&current, NULL);
     52    
     53    /* Calculate milliseconds */
     54    return (guac_timestamp) current.tv_sec * 1000 + current.tv_usec / 1000;
     55
     56#endif
     57
     58}
     59
     60void guac_timestamp_msleep(int duration) {
     61
     62    /* Split milliseconds into equivalent seconds + nanoseconds */
     63    struct timespec sleep_period = {
     64        .tv_sec  =  duration / 1000,
     65        .tv_nsec = (duration % 1000) * 1000000
     66    };
     67
     68    /* Sleep for specified interval */
     69    nanosleep(&sleep_period, NULL);
     70
     71}
     72