guid.h

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/*
 * guid.h
 *
 * Globally Unique Identifier
 *
 * Open H323 Library
 *
 * Copyright (c) 1998-2001 Equivalence Pty. Ltd.
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Open H323 Library.
 *
 * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
 *
 * Contributor(s): ______________________________________.
 *
 * $Log: guid.h,v $
 * Revision 1.1  2006/09/20 05:03:41  csoutheren
 * Migrated GUID functions to PWLib
 *
 * Revision 2.5  2005/11/30 13:35:26  csoutheren
 * Changed tags for Doxygen
 *
 * Revision 2.4  2004/03/11 06:54:27  csoutheren
 * Added ability to disable SIP or H.323 stacks
 *
 * Revision 2.3  2002/11/10 11:33:17  robertj
 * Updated to OpenH323 v1.10.3
 *
 * Revision 2.2  2002/09/16 02:52:35  robertj
 * Added #define so can select if #pragma interface/implementation is used on
 *   platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
 *
 * Revision 2.1  2002/09/04 06:01:47  robertj
 * Updated to OpenH323 v1.9.6
 *
 * Revision 2.0  2001/07/27 15:48:24  robertj
 * Conversion of OpenH323 to Open Phone Abstraction Library (OPAL)
 *
 * Revision 1.4  2002/09/16 01:14:15  robertj
 * Added #define so can select if #pragma interface/implementation is used on
 *   platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
 *
 * Revision 1.3  2002/08/05 10:03:47  robertj
 * Cosmetic changes to normalise the usage of pragma interface/implementation.
 *
 * Revision 1.2  2001/03/19 05:51:35  robertj
 * Added ! operator to do !IsNULL(), so cannot use it accidentally.
 *
 * Revision 1.1  2001/03/02 06:59:57  robertj
 * Enhanced the globally unique identifier class.
 *
 */

#ifndef _PGUID_H
#define _PGUID_H

#ifdef P_USE_PRAGMA
#pragma interface
#endif

class PASN_OctetString;



class PGloballyUniqueID : public PBYTEArray
{
  PCLASSINFO(PGloballyUniqueID, PBYTEArray);

  public:
    PGloballyUniqueID();

    PGloballyUniqueID(
      const char * cstr    
    );
    PGloballyUniqueID(
      const PString & str  
    );
    PGloballyUniqueID(
      const PASN_OctetString & ostr  
    );

    virtual void PrintOn(
      ostream & strm    
    ) const;

    virtual void ReadFrom(
      istream & strm    
    );

    virtual PObject * Clone() const;

    virtual PINDEX HashFunction() const;

    PString AsString() const;

    BOOL IsNULL() const;

    BOOL operator!() const { return !IsNULL(); }
};


#endif // _PGUID_H

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