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RIOT/tests/posix_sleep/main.c 866 Bytes
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  /*
   * Copyright (C) 2014 Freie Universitรคt Berlin
   *
   * This file is subject to the terms and conditions of the GNU Lesser
   * General Public License v2.1. See the file LICENSE in the top level
   * directory for more details.
   */
  
  /**
   * @ingroup tests
   * @{
   *
   * @file
   * @brief Posix sleep test application
   *
   * @author Christian Mehlis <mehlis@inf.fu-berlin.de>
   *
   * @}
   */
  
  #include <stdio.h>
  #include <unistd.h>
  
  int main(void)
  {
      puts("usleep 1 x 1000*1000");
      for (int i = 0; i < 10; i++) {
          useconds_t us = i*1000u*1000u;
          printf("calling usleep(%u)\n", (unsigned int) us);
          usleep(us);
          puts("wake up");
      }
  
      puts("sleep 1");
      for (int i = 0; i < 10; i++) {
          unsigned int s = i;
          printf("calling sleep(%u)\n", s);
          sleep(s);
          puts("wake up");
      }
  
      puts("done");
      return 0;
  }