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 implements the handler for echo messages.
      21             :  */
      22             : 
      23             : #include <app/server/EchoHandler.h>
      24             : 
      25             : #include <lib/core/ErrorStr.h>
      26             : #include <protocols/echo/Echo.h>
      27             : 
      28             : namespace {
      29             : 
      30             : // The EchoServer object.
      31             : chip::Protocols::Echo::EchoServer gEchoServer;
      32             : 
      33             : /**
      34             :  * Callback handler when a CHIP EchoRequest is received.
      35             :  *
      36             :  * @param [in] ec      The exchange context holding the incoming message.
      37             :  * @param [in] payload The buffer holding the message.  This function guarantees
      38             :  *                     that it will free the buffer before returning.
      39             :  *
      40             :  */
      41           0 : void HandleEchoRequestReceived(chip::Messaging::ExchangeContext * ec, chip::System::PacketBufferHandle && payload)
      42             : {
      43           0 :     ChipLogProgress(AppServer, "Echo Request, len=%u ... sending response.\n", payload->DataLength());
      44           0 : }
      45             : 
      46             : } // namespace
      47             : 
      48           0 : CHIP_ERROR InitEchoHandler(chip::Messaging::ExchangeManager * exchangeMgr)
      49             : {
      50           0 :     CHIP_ERROR err = CHIP_NO_ERROR;
      51             : 
      52           0 :     err = gEchoServer.Init(exchangeMgr);
      53           0 :     SuccessOrExit(err);
      54             : 
      55             :     // Arrange to get a callback whenever an Echo Request is received.
      56           0 :     gEchoServer.SetEchoRequestReceived(HandleEchoRequestReceived);
      57             : 
      58           0 : exit:
      59           0 :     if (err != CHIP_NO_ERROR)
      60             :     {
      61           0 :         ChipLogError(AppServer, "EchoServer failed, err:%s\n", chip::ErrorStr(err));
      62             :     }
      63             : 
      64           0 :     return err;
      65             : }