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RIOT/tests/msg_try_receive/main.c 1.07 KB
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  /*
   * Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
   *
   * 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   msg_try_receive regression test application
   *
   * @author  Kaspar Schleiser <kaspar@schleiser.de>
   *
   * @}
   */
  
  #include <stdio.h>
  #include "thread.h"
  
  #include "msg.h"
  
  static kernel_pid_t _main_pid;
  
  static char stack[THREAD_STACKSIZE_MAIN];
  static void *second_thread(void *arg)
  {
      (void) arg;
      msg_t test;
      puts("sending message...");
      msg_send(&test, _main_pid);
  
      return NULL;
  }
  
  int main(void)
  {
      printf("main starting\n");
  
      _main_pid = thread_getpid();
  
      thread_create(stack,
                    sizeof(stack),
                    THREAD_PRIORITY_MAIN - 1,
                    0,
                    second_thread,
                    NULL,
                    "second_thread");
  
      msg_t m;
      printf("msg available: %i (should be 1!)\n", msg_try_receive(&m));
  
      return 0;
  }