Implement a flushing strategy that uses the Leader/Follower set. More...

#include <Leader_Follower_Flushing_Strategy.h>

Inheritance diagram for TAO_Leader_Follower_Flushing_Strategy:

Collaboration diagram for TAO_Leader_Follower_Flushing_Strategy:

Public Member Functions
virtual int	schedule_output (TAO_Transport *transport)
virtual int	cancel_output (TAO_Transport *transport)
	Cancel all scheduled output for the transport argument.
virtual int	flush_message (TAO_Transport transport, TAO_Queued_Message msg, ACE_Time_Value *max_wait_time)
virtual int	flush_transport (TAO_Transport transport, ACE_Time_Value max_wait_time)
	Wait until the transport has no messages queued.

Detailed Description

Implement a flushing strategy that uses the Leader/Follower set.

Definition at line 32 of file Leader_Follower_Flushing_Strategy.h.

Member Function Documentation

int TAO_Leader_Follower_Flushing_Strategy::cancel_output ( TAO_Transport * transport ) [virtual]

Cancel all scheduled output for the transport argument.

Implements TAO_Flushing_Strategy.

Definition at line 24 of file Leader_Follower_Flushing_Strategy.cpp.

{
  return transport->cancel_output_i ();
}

int TAO_Leader_Follower_Flushing_Strategy::flush_message	(	TAO_Transport *	transport,
		TAO_Queued_Message *	msg,
		ACE_Time_Value *	max_wait_time
	)			`[virtual]`

Wait until msg is sent out. Potentially other messages are flushed too, for example, because there are ahead in the queue.

Implements TAO_Flushing_Strategy.

Definition at line 31 of file Leader_Follower_Flushing_Strategy.cpp.

{
  TAO_Leader_Follower &leader_follower =
    transport->orb_core ()->leader_follower ();
  return leader_follower.wait_for_event (msg, transport, max_wait_time);
}

int TAO_Leader_Follower_Flushing_Strategy::flush_transport	(	TAO_Transport *	transport,
		ACE_Time_Value *	max_wait_time
	)			`[virtual]`

Wait until the transport has no messages queued.

Implements TAO_Flushing_Strategy.

Definition at line 42 of file Leader_Follower_Flushing_Strategy.cpp.

{
  try
    {
      TAO_ORB_Core * const orb_core = transport->orb_core ();

      while (!transport->queue_is_empty ())
        {
          // In case max_wait_time==0 we cannot simply run the orb because
          // in multi-threaded applications it can easily happen that
          // the other thread will run the orb and drain the queue in the
          // transport we're coping with here and this thread will block.
          // Instead we do run for a small amount of time and then recheck
          // the queue.
          if (max_wait_time == 0)
            {
              ACE_Errno_Guard eguard (errno);

              // Poll the reactor's queue.
              ACE_Time_Value tv = ACE_Time_Value::zero;
              orb_core->orb ()->perform_work (&tv);
            }
          else
            {
              orb_core->orb ()->perform_work (max_wait_time);
            }

          if (max_wait_time != 0) {
            if (*max_wait_time <= ACE_Time_Value::zero) {
              errno = ETIME;
              return -1;
            }
          }
        }
    }
  catch (const ::CORBA::Exception&)
    {
      return -1;
    }

  return 0;
}

int TAO_Leader_Follower_Flushing_Strategy::schedule_output ( TAO_Transport * transport ) [virtual]

Schedule the transport argument to be flushed If -2 is returned then the caller must call one of the flush_* methods. If -1 is returned then there was an error. If 0 is returned then the flush was scheduled successfully.

Implements TAO_Flushing_Strategy.

Definition at line 18 of file Leader_Follower_Flushing_Strategy.cpp.

{
  return transport->schedule_output_i ();
}

The documentation for this class was generated from the following files:

TAO_Leader_Follower_Flushing_Strategy Class Reference

Public Member Functions

Detailed Description

Member Function Documentation