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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/pre.h"
#include "ace/Reactor.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Acceptor.h"
#include "tao/corbafwd.h"
#include "tao/Wait_Strategy.h"
#include "tao/Connection_Handler.h"
#include "tao/IIOP_Transport.h"
// Forward Decls
class TAO_Pluggable_Messaging;
// ****************************************************************
class TAO_Export TAO_IIOP_Properties
{
// = TITLE
// TCP protocol properties specification for a set of
// connections.
//
public:
int send_buffer_size;
int recv_buffer_size;
int no_delay;
};
// ****************************************************************
class TAO_Export TAO_IIOP_Server_Connection_Handler : public TAO_IIOP_SVC_HANDLER,
public TAO_Connection_Handler
{
// = 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,
CORBA::Boolean flag,
void *arg);
// Constructor. <arg> parameter is used by the Acceptor to pass the
// protocol configuration properties for this connection.
~TAO_IIOP_Server_Connection_Handler (void);
// Destructor.
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>
TAO_Transport *transport (void);
virtual ACE_HANDLE fetch_handle (void);
// Return the underlying handle
virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Reactor_Mask = ACE_Event_Handler::NULL_MASK);
// Perform appropriate closing.
protected:
// = Event Handler overloads
virtual int handle_input (ACE_HANDLE = ACE_INVALID_HANDLE);
virtual int handle_input_i (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Time_Value *max_wait_time = 0);
// Reads a message from the <peer()>, dispatching and servicing it
// appropriately.
// handle_input() just delegates on handle_input_i() which timeouts
// after <max_wait_time>, this is used in thread-per-connection to
// ensure that server threads eventually exit.
protected:
TAO_IIOP_Server_Transport transport_;
// @@ New transport object reference.
TAO_Pluggable_Messaging *acceptor_factory_;
// Messaging acceptor factory
u_long refcount_;
// Reference count.It is used to count nested upcalls on this
// svc_handler i.e., the connection can close during nested upcalls,
// you should not delete the svc_handler until the stack unwinds
// from the nested upcalls.
TAO_IIOP_Properties *tcp_properties_;
// TCP configuration for this connection.
};
/*************************************************************************/
class TAO_Export TAO_IIOP_Client_Connection_Handler: public TAO_IIOP_SVC_HANDLER,
public TAO_Connection_Handler
{
// = 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);
// This constructor should *never* get called, it is just here to
// make the compiler happy: the default implementation of the
// Creation_Strategy requires a constructor with that signature, we
// don't use that implementation, but some (most?) compilers
// instantiate it anyway.
TAO_IIOP_Client_Connection_Handler (ACE_Thread_Manager *t,
TAO_ORB_Core* orb_core,
CORBA::Boolean flag,
void *arg);
// Constructor. <arg> parameter is used by the Connector to pass the
// protocol configuration properties for this connection.
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 response from a twoway invocation is available.
virtual int handle_timeout (const ACE_Time_Value &tv,
const void *arg = 0);
// Called when buffering timer expires.
virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Reactor_Mask = ACE_Event_Handler::NULL_MASK);
// Perform appropriate closing.
virtual int handle_close_i (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Reactor_Mask = ACE_Event_Handler::NULL_MASK);
// Perform appropriate closing but without grabbing any locks.
virtual int close (u_long flags = 0);
// Object termination hook.
virtual TAO_Transport *transport (void);
// Return the transport objects
virtual ACE_HANDLE fetch_handle (void);
// Return the underlying handle
protected:
int handle_cleanup (void);
// This method deregisters the handler from the reactor and closes it.
TAO_IIOP_Client_Transport transport_;
// Reference to the transport object, it is owned by this class.
TAO_IIOP_Properties *tcp_properties_;
// TCP configuration for this connection.
private:
virtual int handle_input_i (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Time_Value *max_wait_time = 0);
// Will not be called at all. As a matter of fact should not be
// called. This is just to override the pure virtual function in the
// TAO_Connection_Handler class
};
#if defined (__ACE_INLINE__)
#include "tao/IIOP_Connect.i"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /* TAO_IIOP_CONNECT_H */
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