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// $Id$
#include "tao/Exclusive_TMS.h"
#include "tao/Reply_Dispatcher.h"
#include "tao/debug.h"
#include "tao/Transport.h"
ACE_RCSID (tao,
Exclusive_TMS,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_Exclusive_TMS::TAO_Exclusive_TMS (TAO_Transport *transport)
: TAO_Transport_Mux_Strategy (transport),
request_id_generator_ (0),
request_id_ (0),
rd_ (0)
{
}
TAO_Exclusive_TMS::~TAO_Exclusive_TMS (void)
{
}
// Generate and return an unique request id for the current
// invocation. We can actually return a predecided ULong, since we
// allow only one invocation over this connection at a time.
CORBA::ULong
TAO_Exclusive_TMS::request_id (void)
{
++this->request_id_generator_;
// if TAO_Transport::bidirectional_flag_
// == 1 --> originating side
// == 0 --> other side
// == -1 --> no bi-directional connection was negotiated
// The originating side must have an even request ID, and the other
// side must have an odd request ID. Make sure that is the case.
int const bidir_flag =
this->transport_->bidirectional_flag ();
if ((bidir_flag == 1 && ACE_ODD (this->request_id_generator_))
|| (bidir_flag == 0 && ACE_EVEN (this->request_id_generator_)))
++this->request_id_generator_;
if (TAO_debug_level > 4)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - Exclusive_TMS::request_id - <%d>\n"),
this->request_id_generator_));
return this->request_id_generator_;
}
// Bind the handler with the request id.
int
TAO_Exclusive_TMS::bind_dispatcher (CORBA::ULong request_id,
TAO_Reply_Dispatcher *rd)
{
this->request_id_ = request_id;
this->rd_ = rd;
return 0;
}
bool
TAO_Exclusive_TMS::has_request (void)
{
return this->rd_ != 0;
}
int
TAO_Exclusive_TMS::unbind_dispatcher (CORBA::ULong request_id)
{
if (!this->rd_ || this->request_id_ != request_id)
return -1;
this->request_id_ = 0;
this->rd_ = 0;
return 0;
}
int
TAO_Exclusive_TMS::dispatch_reply (TAO_Pluggable_Reply_Params ¶ms)
{
// Check the ids.
if (!this->rd_ || this->request_id_ != params.request_id_)
{
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - Exclusive_TMS::dispatch_reply - <%d != %d>\n"),
this->request_id_, params.request_id_));
// The return value 0 informs the transport that the mux strategy
// did not find the right reply handler.
return 0;
}
TAO_Reply_Dispatcher *rd = this->rd_;
this->request_id_ = 0; // @@ What is a good value???
this->rd_ = 0;
// Dispatch the reply.
// Returns 1 on success, -1 on failure.
return rd->dispatch_reply (params);
}
int
TAO_Exclusive_TMS::reply_timed_out (CORBA::ULong request_id)
{
// Check the ids.
if (!this->rd_ || this->request_id_ != request_id)
{
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - Exclusive_TMS::reply_timed_out - <%d != %d>\n"),
this->request_id_, request_id));
// The return value 0 informs the transport that the mux strategy
// did not find the right reply handler.
return 0;
}
TAO_Reply_Dispatcher *rd = this->rd_;
this->request_id_ = 0; // @@ What is a good value???
this->rd_ = 0;
rd->reply_timed_out ();
return 0;
}
bool
TAO_Exclusive_TMS::idle_after_send (void)
{
return false;
}
bool
TAO_Exclusive_TMS::idle_after_reply (void)
{
// Irrespective of whether we are successful or not we need to
// return true. If *this* class is not successfull in idling the
// transport no one can.
if (this->transport_ != 0)
(void) this->transport_->make_idle ();
return true;
}
void
TAO_Exclusive_TMS::connection_closed (void)
{
if (this->rd_ != 0)
this->rd_->connection_closed ();
}
TAO_END_VERSIONED_NAMESPACE_DECL
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