C++ (Cpp) _ISR_lock_Acquire Exemples

Exemple #1

Fichier : init.c Projet : lanzhongheng/rtems

static void test_isr_locks( void )
{
  ISR_Level normal_interrupt_level = _ISR_Get_level();
  ISR_lock_Control initialized = ISR_LOCK_INITIALIZER;
  ISR_lock_Control lock;
  ISR_lock_Context lock_context;

  _ISR_lock_Initialize( &lock );
  rtems_test_assert( memcmp( &lock, &initialized, sizeof( lock ) ) == 0 );

  _ISR_lock_ISR_disable_and_acquire( &lock, &lock_context );
  rtems_test_assert( normal_interrupt_level != _ISR_Get_level() );
  _ISR_lock_Release_and_ISR_enable( &lock, &lock_context );

  rtems_test_assert( normal_interrupt_level == _ISR_Get_level() );

  _ISR_lock_Acquire( &lock, &lock_context );
  rtems_test_assert( normal_interrupt_level == _ISR_Get_level() );
  _ISR_lock_Release( &lock, &lock_context );

  rtems_test_assert( normal_interrupt_level == _ISR_Get_level() );

  _ISR_lock_Destroy( &lock );
  _ISR_lock_Destroy( &initialized );
}

Exemple #2

static void _Thread_queue_Link_remove( Thread_queue_Link *link )
{
    Thread_queue_Links *links;
    ISR_lock_Context    lock_context;

    links = &_Thread_queue_Links;

    _ISR_lock_Acquire( &links->Lock, &lock_context );
    _RBTree_Extract( &links->Links, &link->Registry_node );
    _ISR_lock_Release( &links->Lock, &lock_context );
}

Exemple #3

static bool _Thread_queue_Link_add(
    Thread_queue_Link  *link,
    Thread_queue_Queue *source,
    Thread_queue_Queue *target
)
{
    Thread_queue_Links *links;
    Thread_queue_Queue *recursive_target;
    ISR_lock_Context    lock_context;

    link->source = source;
    link->target = target;

    links = &_Thread_queue_Links;
    recursive_target = target;

    _ISR_lock_Acquire( &links->Lock, &lock_context );

    while ( true ) {
        Thread_queue_Link *recursive_link;

        recursive_link = _Thread_queue_Link_find( links, recursive_target );

        if ( recursive_link == NULL ) {
            break;
        }

        recursive_target = recursive_link->target;

        if ( recursive_target == source ) {
            _ISR_lock_Release( &links->Lock, &lock_context );
            return false;
        }
    }

    _RBTree_Insert_inline(
        &links->Links,
        &link->Registry_node,
        source,
        _Thread_queue_Link_less
    );

    _ISR_lock_Release( &links->Lock, &lock_context );
    return true;
}