OpenH323 1.18.0
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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 1.8 2005/11/30 13:05:01 csoutheren 00028 * Changed tags for Doxygen 00029 * 00030 * Revision 1.7 2002/09/16 01:14:15 robertj 00031 * Added #define so can select if #pragma interface/implementation is used on 00032 * platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan. 00033 * 00034 * Revision 1.6 2002/09/03 06:19:37 robertj 00035 * Normalised the multi-include header prevention ifdef/define symbol. 00036 * 00037 * Revision 1.5 2002/08/05 10:03:47 robertj 00038 * Cosmetic changes to normalise the usage of pragma interface/implementation. 00039 * 00040 * Revision 1.4 2002/05/10 05:47:37 robertj 00041 * Added session ID to the data logical channel class. 00042 * 00043 * Revision 1.3 2002/02/01 01:46:50 robertj 00044 * Some more fixes for T.120 channel establishment, more to do! 00045 * 00046 * Revision 1.2 2002/01/09 00:21:36 robertj 00047 * Changes to support outgoing H.245 RequstModeChange. 00048 * 00049 * Revision 1.1 2001/07/17 04:44:29 robertj 00050 * Partial implementation of T.120 and T.38 logical channels. 00051 * 00052 */ 00053 00054 #ifndef __OPAL_H323T120_H 00055 #define __OPAL_H323T120_H 00056 00057 #ifdef P_USE_PRAGMA 00058 #pragma interface 00059 #endif 00060 00061 00062 #include "h323caps.h" 00063 #include "channels.h" 00064 00065 00066 class OpalT120Protocol; 00067 00068 00070 00073 class H323_T120Capability : public H323DataCapability 00074 { 00075 PCLASSINFO(H323_T120Capability, H323DataCapability); 00076 public: 00081 H323_T120Capability(); 00083 00088 virtual PObject * Clone() const; 00090 00099 virtual unsigned GetSubType() const; 00100 00103 virtual PString GetFormatName() const; 00105 00110 virtual H323Channel * CreateChannel( 00111 H323Connection & connection, 00112 H323Channel::Directions dir, 00113 unsigned sessionID, 00114 const H245_H2250LogicalChannelParameters * param 00116 ) const; 00118 00129 virtual BOOL OnSendingPDU( 00130 H245_DataApplicationCapability & pdu 00131 ) const; 00132 00141 virtual BOOL OnSendingPDU( 00142 H245_DataMode & pdu 00143 ) const; 00144 00151 virtual BOOL OnSendingPDU( 00152 H245_DataProtocolCapability & pdu 00153 ) const; 00154 00162 virtual BOOL OnReceivedPDU( 00163 const H245_DataApplicationCapability & pdu 00164 ); 00166 00172 BOOL GetDynamicPortCapability() const { return dynamicPortCapability; } 00173 00177 void SetDynamicPortCapability(BOOL dynamic) { dynamicPortCapability = dynamic; } 00179 00180 protected: 00181 BOOL dynamicPortCapability; 00182 }; 00183 00184 00187 class H323_T120Channel : public H323DataChannel 00188 { 00189 PCLASSINFO(H323_T120Channel, H323DataChannel); 00190 public: 00195 H323_T120Channel( 00196 H323Connection & connection, 00197 const H323Capability & capability, 00198 Directions direction, 00199 unsigned sessionID 00200 ); 00202 00212 virtual void Receive(); 00213 00222 virtual void Transmit(); 00223 00226 virtual BOOL OnSendingPDU( 00227 H245_OpenLogicalChannel & openPDU 00228 ) const; 00229 00233 virtual void OnSendOpenAck( 00234 const H245_OpenLogicalChannel & open, 00235 H245_OpenLogicalChannelAck & ack 00236 ) const; 00237 00245 virtual BOOL OnReceivedPDU( 00246 const H245_OpenLogicalChannel & pdu, 00247 unsigned & errorCode 00248 ); 00249 00257 virtual BOOL OnReceivedAckPDU( 00258 const H245_OpenLogicalChannelAck & pdu 00259 ); 00261 00262 virtual void HandleChannel(); 00263 00264 protected: 00265 OpalT120Protocol * t120handler; 00266 }; 00267 00268 00269 #endif // __OPAL_H323T120_H 00270 00271