Exemplos de Shm_Lock em C++ (Cpp)

Exemplo n.º 1

Arquivo: addlq.c Projeto: epicsdeb/rtems

void Shm_Locked_queue_Add(
  Shm_Locked_queue_Control *lq_cb,
  Shm_Envelope_control     *ecb
)
{
  uint32_t   index;

  ecb->next  = Shm_Locked_queue_End_of_list;
  ecb->queue = lq_cb->owner;
  index      = ecb->index;

  Shm_Lock( lq_cb );
    if ( Shm_Convert(lq_cb->front) != Shm_Locked_queue_End_of_list )
      Shm_Envelopes[ Shm_Convert(lq_cb->rear) ].next = index;
    else
      lq_cb->front = index;
    lq_cb->rear  = index;
  Shm_Unlock( lq_cb );
}

Exemplo n.º 2

Arquivo: getlq.c Projeto: FullMentalPanic/RTEMS_NEW_TOOL_CHAIN

Shm_Envelope_control *Shm_Locked_queue_Get(
  Shm_Locked_queue_Control *lq_cb
)
{
  Shm_Envelope_control *tmp_ecb;
  uint32_t   tmpfront;

  tmp_ecb = NULL;
  Shm_Lock( lq_cb );

    tmpfront = Shm_Convert(lq_cb->front);
    if ( tmpfront != Shm_Locked_queue_End_of_list ) {
      tmp_ecb = &Shm_Envelopes[ tmpfront ];
      lq_cb->front = tmp_ecb->next;
      if ( tmp_ecb->next == Shm_Locked_queue_End_of_list )
        lq_cb->rear = Shm_Locked_queue_End_of_list;
      tmp_ecb->next = Shm_Locked_queue_Not_on_list;
    }

  Shm_Unlock( lq_cb );
  return( tmp_ecb );
}