C++ (Cpp) rtems_chain_get_with_wait Examples

Example #1

File: media-server.c Project: AlexShiLucky/rtems

static void media_server(rtems_task_argument arg __attribute__((unused)))
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;

  while (true) {
    message *msg = NULL;

    sc = rtems_chain_get_with_wait(
      &message_chain,
      EVENT,
      RTEMS_NO_TIMEOUT,
      (rtems_chain_node **) &msg
    );
    assert(sc == RTEMS_SUCCESSFUL);
    assert(msg != NULL);

    rtems_media_post_event(
      msg->event,
      msg->src,
      NULL,
      msg->worker,
      msg->worker_arg
    );

    free(msg);
  }
}

Example #2

File: init.c Project: 0871087123/rtems

static void test_chain_get_with_wait(void)
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;
  rtems_chain_control chain;
  rtems_chain_node *p = (rtems_chain_node *) 1;

  puts( "INIT - Verify rtems_chain_get_with_wait" );
  rtems_chain_initialize_empty( &chain );
  sc = rtems_chain_get_with_wait( &chain, EVENT, TIMEOUT, &p );
  rtems_test_assert( sc == RTEMS_TIMEOUT );
  rtems_test_assert( p == NULL );
}

Example #3

File: uart-bridge-master.c Project: rtemss/rtems

static void transmit_task(rtems_task_argument arg)
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;
  uart_bridge_master_control *control = (uart_bridge_master_control *) arg;
  rtems_chain_control *fifo = &control->transmit_fifo;

  int fd = open(control->device_path, O_WRONLY);
  assert(fd >= 0);

  serial_settings(fd);

  while (true) {
    intercom_packet *packet = NULL;
    sc = rtems_chain_get_with_wait(
      fifo,
      TRANSMIT_EVENT,
      RTEMS_NO_TIMEOUT,
      (rtems_chain_node **) &packet
    );
    assert(sc == RTEMS_SUCCESSFUL);
    write(fd, packet->data, packet->size);
    qoriq_intercom_free_packet(packet);
  }
}

Example #4

File: init.c Project: 0871087123/rtems

static void test_chain_with_notification(void)
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;
  rtems_chain_control chain;
  rtems_chain_node a;
  rtems_chain_node b;
  rtems_chain_node *p = (rtems_chain_node *) 1;
  rtems_event_set out = 0;

  puts( "INIT - Verify rtems_chain_append_with_notification" );
  rtems_chain_initialize_empty( &chain );
  sc = rtems_chain_append_with_notification(
    &chain,
    &a,
    rtems_task_self(),
    EVENT
  );
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  sc = rtems_chain_get_with_wait( &chain, EVENT, TIMEOUT, &p );
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  rtems_test_assert( p == &a );

  rtems_chain_initialize_empty( &chain );

  rtems_chain_append( &chain, &b );
  sc = rtems_chain_append_with_notification(
    &chain,
    &a,
    rtems_task_self(),
    EVENT
  );
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  rtems_test_assert( p == &a );

  puts( "INIT - Verify rtems_chain_prepend_with_notification" );
  rtems_chain_initialize_empty( &chain );
  sc = rtems_chain_prepend_with_notification(
    &chain,
    &a,
    rtems_task_self(),
    EVENT
  );
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  sc = rtems_chain_get_with_wait( &chain, EVENT, TIMEOUT, &p );
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  rtems_test_assert( p == &a );

  rtems_chain_prepend( &chain, &b );
  sc = rtems_chain_prepend_with_notification(
    &chain,
    &a,
    rtems_task_self(),
    EVENT
  );
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  rtems_test_assert( p == &a );

  puts( "INIT - Verify rtems_chain_prepend_with_notification" );
  puts( "INIT - Verify rtems_chain_get_with_notification" );
  rtems_chain_initialize_empty( &chain );

  rtems_chain_append( &chain, &b );
  rtems_chain_append( &chain, &a );

  sc = rtems_chain_get_with_notification(&chain, rtems_task_self(), EVENT, &p);
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  rtems_test_assert( p == &b );

  sc = rtems_chain_get_with_notification(&chain, rtems_task_self(), EVENT, &p);
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  rtems_test_assert( p == &a );
  sc = rtems_event_receive(
    EVENT,
    RTEMS_EVENT_ALL | RTEMS_WAIT,
    TIMEOUT,
    &out
  );
  rtems_test_assert( sc == RTEMS_SUCCESSFUL );
  rtems_test_assert( out == EVENT );
}