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// This may look like C, but it's really -*- C++ -*-
//=============================================================================
/**
* @file DIOP_Profile.h
*
* $Id$
*
* DIOP profile specific processing
*
*
* @author Michael Kircher
*/
//=============================================================================
#ifndef TAO_DIOP_PROFILE_H
#define TAO_DIOP_PROFILE_H
#include "ace/pre.h"
#include "tao/corbafwd.h"
#if defined (TAO_HAS_DIOP) && (TAO_HAS_DIOP != 0)
#include "tao/Profile.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/Object_KeyC.h"
#include "DIOP_Endpoint.h"
#include "ace/Synch.h"
// TAO DIOP_Profile concrete Profile definitions
/**
* @class TAO_DIOP_Profile
*
* @brief This class defines the protocol specific attributes required
* for locating ORBs over a TCP/IP network.
*
* This class defines the DIOP profile as specified in the CORBA
* specification.
*/
class TAO_Strategies_Export TAO_DIOP_Profile : public TAO_Profile
{
public:
/// The object key delimiter that DIOP uses or expects.
static const char object_key_delimiter_;
virtual char object_key_delimiter (void) const;
/// Return the char string prefix.
static const char *prefix (void);
/// Profile constructor, same as above except the object_key has
/// already been marshaled.
TAO_DIOP_Profile (const ACE_INET_Addr &addr,
const TAO_ObjectKey &object_key,
const TAO_GIOP_Message_Version &version,
TAO_ORB_Core *orb_core);
/// Profile constructor, this is the most efficient since it
/// doesn't require any address resolution processing.
TAO_DIOP_Profile (const char *host,
CORBA::UShort port,
const TAO_ObjectKey &object_key,
const ACE_INET_Addr &addr,
const TAO_GIOP_Message_Version &version,
TAO_ORB_Core *orb_core);
/// Profile constructor, default.
TAO_DIOP_Profile (TAO_ORB_Core *orb_core);
/// Destructor is to be called only through <_decr_refcnt>.
~TAO_DIOP_Profile (void);
/// Initialize this object using the given input string.
/// Url-style string contain only one endpoint.
virtual void parse_string (const char *string,
CORBA::Environment &ACE_TRY_ENV);
/**
* Return a string representation for this profile.
* client must deallocate memory.
* This is used to create url-style reference. Only one
* endpoint is included into the string.
*/
virtual char * to_string (CORBA::Environment &ACE_TRY_ENV);
/// Initialize this object using the given CDR octet string.
virtual int decode (TAO_InputCDR& cdr);
/// Encode this profile in a stream, i.e. marshal it.
virtual int encode (TAO_OutputCDR &stream) const;
/**
* Encodes this profile's endpoints into a tagged component.
* This is done only if RTCORBA is enabled, since currently this is
* the only case when we have more than one endpoint per profile.
* Returns 0 on success and -1 on failure.
*
* Endpoints are transmitted using TAO-proprietory tagged component.
* Component tag is TAO_TAG_ENDPOINTS and component data is an
* encapsulation of a sequence of structs, each representing a
* single endpoint. Data format is specified in iiop_endpoins.pidl.
*
* Multiple TAG_ALTERNATE_DIOP_ADDRESS components can be used
* instead of a single proprietory component to transmit multiple
* endpoints. This is somewhat slower and less convenient. Also,
* TAG_ALTERNATE_DIOP_ADDRESS does not provide for transmission of
* endpoint priorities.
*
*/
virtual int encode_endpoints (void);
/// @@ deprecated. return a reference to the Object Key.
virtual const TAO_ObjectKey &object_key (void) const;
/// Return a pointer to the Object Key. The caller owns the memory
/// allocated for the returned key.
virtual TAO_ObjectKey *_key (void) const;
/// Return pointer to the head of this profile's endpoints list.
virtual TAO_Endpoint *endpoint (void);
/// Return how many endpoints this profile contains.
virtual size_t endpoint_count (void);
/**
* Add <endp> to this profile's list of endpoints (it is inserted
* next to the head of the list). This profiles takes ownership of
* <endp>.
*/
void add_endpoint (TAO_DIOP_Endpoint *endp);
/**
* Return true if this profile is equivalent to other_profile. Two
* profiles are equivalent iff their tag, object_key, version and
* all endpoints are the same.
*/
virtual CORBA::Boolean is_equivalent (const TAO_Profile *other_profile);
/// Return a hash value for this object.
virtual CORBA::ULong hash (CORBA::ULong max,
CORBA::Environment &ACE_TRY_ENV);
/// Please refer to Profile.h for the documentation of this
/// function.
virtual IOP::TaggedProfile &create_tagged_profile (void);
private:
/// Creates an encapsulation of the ProfileBody struct in the <cdr>
void create_profile_body (TAO_OutputCDR &cdr) const;
/**
* Helper for <decode>. Decodes endpoints from a tagged component.
* Decode only if RTCORBA is enabled. Furthermore, we may not find
* TAO_TAG_ENDPOINTS component, e.g., if we are talking to nonRT
* version of TAO or some other ORB. This is not an error, and we
* must proceed. Return 0 on success and -1 on failure.
*/
int decode_endpoints (void);
protected:
/**
* Head of this profile's list of endpoints. This endpoint is not
* dynamically allocated because a profile always contains at least
* one endpoint.
*
* Currently, a profile contains more than one endpoint, i.e.,
* list contains more than just the head, only when RTCORBA is enabled.
* However, in the near future, this will be used in nonRT
* mode as well, e.g., to support TAG_ALTERNATE_DIOP_ADDRESS
* feature.
* Addressing info of the default endpoint, i.e., head of the list,
* is transmitted using standard DIOP ProfileBody components. See
* <encode_endpoints> method documentation above for how the rest of
* the endpoint list is transmitted.
*/
TAO_DIOP_Endpoint endpoint_;
/// Number of endpoints in the list headed by <endpoint_>.
size_t count_;
private:
/// object_key associated with this profile.
TAO_ObjectKey object_key_;
/// Our tagged profile
IOP::TaggedProfile tagged_profile_;
};
#if defined (__ACE_INLINE__)
# include "DIOP_Profile.i"
#endif /* __ACE_INLINE__ */
#endif /* TAO_HAS_DIOP && TAO_HAS_DIOP != 0 */
#include "ace/post.h"
#endif /* TAO_DIOP_PROFILE_H */
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