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RIOT/tests/xtimer_msg_receive_timeout/main.c 1.35 KB
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  /*
   * Copyright (C) 2015 INRIA
   *
   * 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       test application for xtimer_msg_receive_timeout()
   *
   *              This test will start sequentially start 10 xtimers to send a
   *              IPC msg, alternating with an interval of 900ms and 1100ms
   *              respectively. Everytime a timer was set, it will wait for a
   *              message for at most 1000ms. This should succeed and fail in an
   *              alternating manner.
   *
   * @author      Oliver Hahm <oliver.hahm@inria.fr>
   *
   * @}
   */
  
  #include "thread.h"
  #include "msg.h"
  #include "xtimer.h"
  #include "timex.h"
  
  #define TEST_PERIOD (100000LU)
  
  int main(void)
  {
      msg_t m, tmsg;
      xtimer_t t;
      int64_t offset = -1000;
      tmsg.type = 44;
      t.target = 0;
      t.long_target = 0;
  
      for (int i = 0; i < 10; i++) {
          xtimer_set_msg(&t, TEST_PERIOD + offset, &tmsg, sched_active_pid);
          if (xtimer_msg_receive_timeout(&m, TEST_PERIOD) < 0) {
              puts("Timeout!");
          }
          else {
              printf("Message received: %" PRIu16 "\n", m.type);
          }
          offset = (offset < 0) ? 1000 : -1000;
          xtimer_remove(&t);
      }
      return 0;
  }