Line data    Source code

       1              : /*
       2              :  *
       3              :  *    Copyright (c) 2021 Project CHIP Authors
       4              :  *
       5              :  *    Licensed under the Apache License, Version 2.0 (the "License");
       6              :  *    you may not use this file except in compliance with the License.
       7              :  *    You may obtain a copy of the License at
       8              :  *
       9              :  *        http://www.apache.org/licenses/LICENSE-2.0
      10              :  *
      11              :  *    Unless required by applicable law or agreed to in writing, software
      12              :  *    distributed under the License is distributed on an "AS IS" BASIS,
      13              :  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      14              :  *    See the License for the specific language governing permissions and
      15              :  *    limitations under the License.
      16              :  */
      17              : 
      18              : /**
      19              :  *    @file
      20              :  *      This file defines ExchangeMessageDispatch class. The object of this
      21              :  *      class can be used by CHIP protocols to send and receive messages.
      22              :  */
      23              : 
      24              : #pragma once
      25              : 
      26              : #include <messaging/Flags.h>
      27              : #include <protocols/Protocols.h>
      28              : #include <transport/SessionManager.h>
      29              : 
      30              : namespace chip {
      31              : namespace Messaging {
      32              : 
      33              : class ReliableMessageContext;
      34              : 
      35              : class ExchangeMessageDispatch
      36              : {
      37              : public:
      38           10 :     ExchangeMessageDispatch() {}
      39           10 :     virtual ~ExchangeMessageDispatch() {}
      40              : 
      41          721 :     virtual bool IsEncryptionRequired() const { return true; }
      42              : 
      43              :     CHIP_ERROR SendMessage(SessionManager * sessionManager, const SessionHandle & session, uint16_t exchangeId, bool isInitiator,
      44              :                            ReliableMessageContext * reliableMessageContext, bool isReliableTransmission, Protocols::Id protocol,
      45              :                            uint8_t type, System::PacketBufferHandle && message);
      46              : 
      47              :     virtual bool MessagePermitted(Protocols::Id protocol, uint8_t type) = 0;
      48              : 
      49              :     // TODO: remove IsReliableTransmissionAllowed, this function should be provided over session.
      50         1504 :     virtual bool IsReliableTransmissionAllowed() const { return true; }
      51              : 
      52              : private:
      53              :     CHIP_ERROR PrepareAndSendNonMRPMessage(SessionManager * sessionManager, const SessionHandle & session,
      54              :                                            PayloadHeader & payloadHeader, System::PacketBufferHandle && message);
      55              : };
      56              : 
      57              : } // namespace Messaging
      58              : } // namespace chip