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// -*- C++ -*-
//
// ===================================================================
/**
* @file GIOP_Message_NonReactive_Base.h
*
* $Id$
*
* @author Balachandran Natarajan <bala@cs.wustl.edu>
*/
// ===================================================================
#ifndef TAO_GIOP_MESSAGE_NONREACTIVE_BASE_H
#define TAO_GIOP_MESSAGE_NONREACTIVE_BASE_H
#include "ace/pre.h"
#include "strategies_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "GIOP_Message_NonReactive_Handler.h"
#include "tao/GIOP_Message_Base.h"
class TAO_Pluggable_Reply_Params;
/**
* @class TAO_GIOP_Message_NonReactive_Base
*
* @brief Uses the NonReactive mechanism to read and process
* messages.
*
* Some protocols based on shared memory cannot make use of the
* reactor as other protocols based on TCP/IP. This class is a relief
* for such protocols. This effectively does the following
* - reads the GIOP header out of the transport
* - processes the header to determine the length of the message
* and other details.
* - reads the body of the message from the transport
* - passes the data to the base class for making the upcall.
*/
class TAO_Strategies_Export TAO_GIOP_Message_NonReactive_Base :public TAO_GIOP_Message_Base
{
public:
/// Constructor
TAO_GIOP_Message_NonReactive_Base (TAO_ORB_Core *orb_core,
size_t cdr_size = ACE_CDR::DEFAULT_BUFSIZE);
/// This method reads the message on the connection. Returns 0 when
/// there is short read on the connection. Returns 1 when the full
/// message is read and handled. Returns -1 on errors. <block> is
/// not used.
virtual int read_message (TAO_Transport *transport,
int block = 0,
ACE_Time_Value *max_wait_time = 0);
/// Get the message type. The return value would be one of the
/// following:
/// TAO_PLUGGABLE_MESSAGE_REQUEST,
/// TAO_PLUGGABLE_MESSAGE_REPLY,
/// TAO_PLUGGABLE_MESSAGE_CLOSECONNECTION,
/// TAO_PLUGGABLE_MESSAGE_MESSAGE_ERROR.
virtual TAO_Pluggable_Message_Type message_type (void);
/// Process the request message that we have received on the
/// connection
virtual int process_request_message (TAO_Transport *transport,
TAO_ORB_Core *orb_core);
/// Parse the reply message that we received and return the reply
/// information though <reply_info>
virtual int process_reply_message (
TAO_Pluggable_Reply_Params &reply_info
);
/// Are there any more pieces that needs to be read to make a full
/// message?
virtual int more_messages (void);
private:
/// The input cdr stream in which the incoming data is stored.
TAO_InputCDR input_cdr_;
};
#if defined (__ACE_INLINE__)
# include "GIOP_Message_NonReactive_Base.inl"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /*TAO_GIOP_MESSAGE_NONREACTIVE_BASE_H*/
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