www.pudn.com > openh323-v1_15_1-src.zip > t120proto.h

/* 
 * t120proto.h 
 * 
 * T.120 protocol handler 
 * 
 * Open Phone Abstraction Library 
 * 
 * Copyright (c) 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: t120proto.h,v $ 
 * 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  2002/09/03 05:44:46  robertj 
 * Normalised the multi-include header prevention ifdef/define symbol. 
 * Added globally accessible functions for media format name. 
 * Added standard TCP port constant. 
 * 
 * Revision 1.2  2002/02/01 01:47:02  robertj 
 * Some more fixes for T.120 channel establishment, more to do! 
 * 
 * Revision 1.1  2001/07/17 04:44:29  robertj 
 * Partial implementation of T.120 and T.38 logical channels. 
 * 
 */ 
 
#ifndef __OPAL_T120PROTO_H 
#define __OPAL_T120PROTO_H 
 
#ifdef P_USE_PRAGMA 
#pragma interface 
#endif 
 
 
#include "mediafmt.h" 
 
 
class H323Transport; 
 
class X224; 
class MCS_ConnectMCSPDU; 
class MCS_DomainMCSPDU; 
 
 
/////////////////////////////////////////////////////////////////////////////// 
 
/**This class describes the T.120 protocol handler. 
 */ 
class OpalT120Protocol : public PObject 
{ 
    PCLASSINFO(OpalT120Protocol, PObject); 
  public: 
    enum { 
      DefaultTcpPort = 1503 
    }; 
 
    static OpalMediaFormat const MediaFormat; 
 
 
  /**@name Construction */ 
  //@{ 
    /**Create a new protocol handler. 
     */ 
    OpalT120Protocol(); 
  //@} 
 
  /**@name Operations */ 
  //@{ 
    /**Handle the origination of a T.120 connection. 
      */ 
    virtual BOOL Originate( 
      H323Transport & transport 
    ); 
 
    /**Handle the origination of a T.120 connection. 
      */ 
    virtual BOOL Answer( 
      H323Transport & transport 
    ); 
 
    /**Handle incoming T.120 connection. 
 
       If returns FALSE, then the reading loop should be terminated. 
      */ 
    virtual BOOL HandleConnect( 
      const MCS_ConnectMCSPDU & pdu 
    ); 
 
    /**Handle incoming T.120 packet. 
 
       If returns FALSE, then the reading loop should be terminated. 
      */ 
    virtual BOOL HandleDomain( 
      const MCS_DomainMCSPDU & pdu 
    ); 
  //@} 
}; 
 
 
#endif // __OPAL_T120PROTO_H 
 
 
/////////////////////////////////////////////////////////////////////////////