native_client_sdk/src/examples/api/socket/echo_server.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ECHO_SERVER_H_
   6 #define ECHO_SERVER_H_
   7
   8 #include "ppapi/cpp/instance.h"
   9 #include "ppapi/cpp/tcp_socket.h"
  10 #include "ppapi/utility/completion_callback_factory.h"
  11
  12 static const int kBufferSize = 1024;
  13
  14 // Simple "echo" server based on a listening pp::TCPSocket.
  15 // This server handles just one connection at a time and will
  16 // echo back whatever bytes get sent to it.
  17 class EchoServer {
  18  public:
  19   EchoServer(pp::Instance* instance, uint16_t port)
  20     : instance_(instance),
  21       callback_factory_(this) {
  22     Start(port);
  23   }
  24
  25  protected:
  26   void Start(uint16_t port);
  27
  28   // Callback functions
  29   void OnBindCompletion(int32_t result);
  30   void OnListenCompletion(int32_t result);
  31   void OnAcceptCompletion(int32_t result, pp::TCPSocket socket);
  32   void OnReadCompletion(int32_t result);
  33   void OnWriteCompletion(int32_t result);
  34
  35   void TryRead();
  36   void TryAccept();
  37
  38   pp::Instance* instance_;
  39   pp::CompletionCallbackFactory<EchoServer> callback_factory_;
  40   pp::TCPSocket listening_socket_;
  41   pp::TCPSocket incoming_socket_;
  42
  43   char receive_buffer_[kBufferSize];
  44 };
  45
  46 #endif  // ECHO_SERVER_H_