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// -*- C++ -*-
//=============================================================================
/**
* @file IOR_Multicast.h
*
* $Id$
*
* Defines a class that listens to a multicast address for client requests
* for ior of a bootstrappable service.
*
*
* @author Sergio Flores-Gaitan
*/
//=============================================================================
#ifndef TAO_IOR_MULTICAST_H
#define TAO_IOR_MULTICAST_H
#include /**/ "ace/pre.h"
#include "orbsvcs/svc_utils_export.h"
#include "tao/ORB.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/INET_Addr.h"
#include "ace/SOCK_Dgram_Mcast.h"
#include "ace/Reactor.h"
#include "ace/SString.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class TAO_IOR_Multicast
*
* @brief Event Handler that services multicast requests for IOR of a
* bootstrappable service.
*
* This class uses the ACE_SOCK_Dgram_Mcast class and should be
* registered with a reactor and should be initialized with the
* ior of the service to be multicasted.
*/
class TAO_Svc_Utils_Export TAO_IOR_Multicast : public ACE_Event_Handler
{
public:
/// Constructor.
TAO_IOR_Multicast (void);
/// Constructor taking the ior of the service.
TAO_IOR_Multicast (const char *ior,
u_short port,
const char *mcast_addr,
TAO_Service_ID service_id);
/// Initialization method.
int init (const char *ior,
u_short port,
const char *mcast_addr,
TAO_Service_ID service_id);
/// Initialization method. Takes in "address:port" string as a
/// parameter.
int init (const char *ior,
const char *mcast_addr,
TAO_Service_ID service_id);
/// Destructor.
virtual ~TAO_IOR_Multicast (void);
/// Callback when input is received on the handle.
virtual int handle_input (ACE_HANDLE n);
/// Callback when a timeout has occurred.
virtual int handle_timeout (const ACE_Time_Value &tv,
const void *arg);
/// Returns the internal handle used to receive multicast.
virtual ACE_HANDLE get_handle (void) const;
private:
/// Factor common functionality from the two init functions.
int common_init (const char *ior,
TAO_Service_ID service_id);
/// Service id that we're waiting for.
TAO_Service_ID service_id_;
/// multicast endpoint of communication
ACE_SOCK_Dgram_Mcast mcast_dgram_;
/// multicast address
ACE_INET_Addr mcast_addr_;
/// object reference to send in response to the multicast
ACE_CString ior_;
/// address of response.
ACE_INET_Addr response_addr_;
/// socket for response to the multicast
ACE_SOCK_Dgram response_;
ACE_CString mcast_nic_;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_IOR_MULTICAST_H */
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