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h323t120.h

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00001 /* 00002 * h323t120.h 00003 * 00004 * H.323 T.120 logical channel establishment 00005 * 00006 * Open H323 Library 00007 * 00008 * Copyright (c) 2001 Equivalence Pty. Ltd. 00009 * 00010 * The contents of this file are subject to the Mozilla Public License 00011 * Version 1.0 (the "License"); you may not use this file except in 00012 * compliance with the License. You may obtain a copy of the License at 00013 * http://www.mozilla.org/MPL/ 00014 * 00015 * Software distributed under the License is distributed on an "AS IS" 00016 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 00017 * the License for the specific language governing rights and limitations 00018 * under the License. 00019 * 00020 * The Original Code is Open H323 Library. 00021 * 00022 * The Initial Developer of the Original Code is Equivalence Pty. Ltd. 00023 * 00024 * Contributor(s): ______________________________________. 00025 * 00026 * $Log: h323t120.h,v $ 00027 * Revision 1.7 2002/09/16 01:14:15 robertj 00028 * Added #define so can select if #pragma interface/implementation is used on 00029 * platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan. 00030 * 00031 * Revision 1.6 2002/09/03 06:19:37 robertj 00032 * Normalised the multi-include header prevention ifdef/define symbol. 00033 * 00034 * Revision 1.5 2002/08/05 10:03:47 robertj 00035 * Cosmetic changes to normalise the usage of pragma interface/implementation. 00036 * 00037 * Revision 1.4 2002/05/10 05:47:37 robertj 00038 * Added session ID to the data logical channel class. 00039 * 00040 * Revision 1.3 2002/02/01 01:46:50 robertj 00041 * Some more fixes for T.120 channel establishment, more to do! 00042 * 00043 * Revision 1.2 2002/01/09 00:21:36 robertj 00044 * Changes to support outgoing H.245 RequstModeChange. 00045 * 00046 * Revision 1.1 2001/07/17 04:44:29 robertj 00047 * Partial implementation of T.120 and T.38 logical channels. 00048 * 00049 */ 00050 00051 #ifndef __OPAL_H323T120_H 00052 #define __OPAL_H323T120_H 00053 00054 #ifdef P_USE_PRAGMA 00055 #pragma interface 00056 #endif 00057 00058 00059 #include "h323caps.h" 00060 #include "channels.h" 00061 00062 00063 class OpalT120Protocol; 00064 00065 00067 00070 class H323_T120Capability : public H323DataCapability 00071 { 00072 PCLASSINFO(H323_T120Capability, H323DataCapability); 00073 public: 00078 H323_T120Capability(); 00080 00085 virtual PObject * Clone() const; 00087 00096 virtual unsigned GetSubType() const; 00097 00100 virtual PString GetFormatName() const; 00102 00107 virtual H323Channel * CreateChannel( 00108 H323Connection & connection, 00109 H323Channel::Directions dir, 00110 unsigned sessionID, 00111 const H245_H2250LogicalChannelParameters * param 00113 ) const; 00115 00126 virtual BOOL OnSendingPDU( 00127 H245_DataApplicationCapability & pdu 00128 ) const; 00129 00138 virtual BOOL OnSendingPDU( 00139 H245_DataMode & pdu 00140 ) const; 00141 00148 virtual BOOL OnSendingPDU( 00149 H245_DataProtocolCapability & pdu 00150 ) const; 00151 00159 virtual BOOL OnReceivedPDU( 00160 const H245_DataApplicationCapability & pdu 00161 ); 00163 00169 BOOL GetDynamicPortCapability() const { return dynamicPortCapability; } 00170 00174 void SetDynamicPortCapability(BOOL dynamic) { dynamicPortCapability = dynamic; } 00176 00177 protected: 00178 BOOL dynamicPortCapability; 00179 }; 00180 00181 00184 class H323_T120Channel : public H323DataChannel 00185 { 00186 PCLASSINFO(H323_T120Channel, H323DataChannel); 00187 public: 00192 H323_T120Channel( 00193 H323Connection & connection, 00194 const H323Capability & capability, 00195 Directions direction, 00196 unsigned sessionID 00197 ); 00199 00209 virtual void Receive(); 00210 00219 virtual void Transmit(); 00220 00223 virtual BOOL OnSendingPDU( 00224 H245_OpenLogicalChannel & openPDU 00225 ) const; 00226 00230 virtual void OnSendOpenAck( 00231 const H245_OpenLogicalChannel & open, 00232 H245_OpenLogicalChannelAck & ack 00233 ) const; 00234 00242 virtual BOOL OnReceivedPDU( 00243 const H245_OpenLogicalChannel & pdu, 00244 unsigned & errorCode 00245 ); 00246 00254 virtual BOOL OnReceivedAckPDU( 00255 const H245_OpenLogicalChannelAck & pdu 00256 ); 00258 00259 virtual void HandleChannel(); 00260 00261 protected: 00262 OpalT120Protocol * t120handler; 00263 }; 00264 00265 00266 #endif // __OPAL_H323T120_H 00267 00268

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