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// This may look like C, but it's really -*- C++ -*-
// $Id$
// ============================================================================
//
// = LIBRARY
// TAO
//
// = FILENAME
// IIOP_Connect.h
//
// = AUTHOR
// Chris Cleeland
//
// ============================================================================
#ifndef TAO_IIOP_CONNECT_H
#define TAO_IIOP_CONNECT_H
#include "ace/Reactor.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Acceptor.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/Synch.h"
#include "ace/Svc_Handler.h"
#include "tao/corbafwd.h"
#include "tao/GIOP.h"
// Forward Decls
class TAO_Transport;
class TAO_ORB_Core;
class TAO_ORB_Core_TSS_Resources;
class TAO_IIOP_Transport;
class TAO_IIOP_Client_Transport;
class TAO_IIOP_Server_Transport;
typedef ACE_Svc_Handler<TAO_SOCK_STREAM, ACE_NULL_SYNCH>
TAO_SVC_HANDLER;
// ****************************************************************
class TAO_IIOP_Handler_Base : public TAO_SVC_HANDLER
{
public:
TAO_IIOP_Handler_Base (ACE_Thread_Manager *t);
TAO_IIOP_Handler_Base (TAO_ORB_Core *orb_core);
virtual TAO_Transport *transport (void) = 0;
};
class TAO_Export TAO_IIOP_Client_Connection_Handler : public TAO_IIOP_Handler_Base
{
// = TITLE
// <Svc_Handler> used on the client side and returned by the
// <TAO_CONNECTOR>.
public:
// = Intialization method.
TAO_IIOP_Client_Connection_Handler (ACE_Thread_Manager *t = 0,
TAO_ORB_Core* orb_core = 0);
virtual ~TAO_IIOP_Client_Connection_Handler (void);
// = <Connector> hook.
virtual int open (void *);
// Activation template method.
// = Event Handler overloads
virtual int handle_input (ACE_HANDLE = ACE_INVALID_HANDLE);
// Called when a a response from a twoway invocation is available.
virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Reactor_Mask = ACE_Event_Handler::NULL_MASK);
// Perform appropriate closing.
virtual int close (u_long flags = 0);
// Object termination hook.
virtual TAO_Transport *transport (void);
// Return the transport objects
protected:
TAO_IIOP_Client_Transport *transport_;
// Reference to the transport object, it is owned by this class.
};
// ****************************************************************
class TAO_Export TAO_IIOP_Server_Connection_Handler : public TAO_IIOP_Handler_Base
{
// = TITLE
// Handles requests on a single connection in a server.
public:
TAO_IIOP_Server_Connection_Handler (ACE_Thread_Manager* t = 0);
TAO_IIOP_Server_Connection_Handler (TAO_ORB_Core *orb_core);
~TAO_IIOP_Server_Connection_Handler (void);
// Constructor.
virtual int open (void *);
// Called by the <Strategy_Acceptor> when the handler is completely
// connected. Argument is unused.
// = Active object activation method.
virtual int activate (long flags = THR_NEW_LWP,
int n_threads = 1,
int force_active = 0,
long priority = ACE_DEFAULT_THREAD_PRIORITY,
int grp_id = -1,
ACE_Task_Base *task = 0,
ACE_hthread_t thread_handles[] = 0,
void *stack[] = 0,
size_t stack_size[] = 0,
ACE_thread_t thread_names[] = 0);
virtual int svc (void);
// Only used when the handler is turned into an active object by
// calling <activate>. This serves as the event loop in such cases.
// = Template Methods Called by <handle_input>
virtual int handle_message (TAO_InputCDR &msg,
TAO_OutputCDR &response,
CORBA::Boolean &response_required,
CORBA::ULong &request_id,
CORBA_Environment &TAO_IN_ENV =
TAO_default_environment ());
// Handle processing of the request residing in <msg>, setting
// <response_required> to zero if the request is for a oneway or
// non-zero if for a two-way and <response> to any necessary
// response (including errors). In case of errors, -1 is returned
// and additional information carried in <env>.
TAO_Transport *transport (void);
protected:
virtual int handle_locate (TAO_InputCDR &msg,
TAO_OutputCDR &response,
CORBA::Boolean &response_required,
CORBA::ULong &request_id,
CORBA_Environment &TAO_IN_ENV =
TAO_default_environment ());
// Handle processing of the location request residing in <msg>,
// setting <response_required> to one if no errors are encountered.
// The LocateRequestReply is placed into <response>. In case of
// errors, -1 is returned and additional information carried in
// <TAO_IN_ENV>.
virtual void send_response (TAO_OutputCDR &response);
// Send <response> to the client on the other end.
// = Event Handler overloads
virtual int handle_input (ACE_HANDLE = ACE_INVALID_HANDLE);
// Reads a message from the <peer()>, dispatching and servicing it
// appropriately.
virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Reactor_Mask = ACE_Event_Handler::NULL_MASK);
// Perform appropriate closing.
protected:
TAO_IIOP_Server_Transport *transport_;
// @@ New transport object reference.
TAO_ORB_Core *orb_core_;
// Cached ORB Core.
TAO_ORB_Core_TSS_Resources *tss_resources_;
// Cached tss resources of the ORB that activated this object.
TAO_GIOP_MessageHeader message_header_;
CORBA::ULong current_offset_;
ACE_Message_Block payload_;
// This keep the state of the current message, to enable
// non-blocking reads.
};
#if defined (__ACE_INLINE__)
#include "tao/IIOP_Connect.i"
#endif /* __ACE_INLINE__ */
#endif /* TAO_IIOP_CONNECT_H */
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