text: // Copyright 2013 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef EXTENSIONS_BROWSER_API_DIAGNOSTICS_DIAGNOSTICS_API_H_
  #define EXTENSIONS_BROWSER_API_DIAGNOSTICS_DIAGNOSTICS_API_H_
  
  #include <memory>
  #include <string>
  
  #include "extensions/browser/api/async_api_function.h"
  #include "extensions/common/api/diagnostics.h"
  
  namespace extensions {
  
  class DiagnosticsSendPacketFunction : public AsyncApiFunction {
   public:
    // Result code for sending packet. Platform specific AsyncWorkStart() will
    // finish with this ResultCode so we can maximize shared code.
    enum SendPacketResultCode {
      // Ping packed is sent and ICMP reply is received before time out.
      SEND_PACKET_OK,
  
      // Not implemented on the platform.
      SEND_PACKET_NOT_IMPLEMENTED,
  
      // The ping operation failed because of timeout or network unreachable.
      SEND_PACKET_FAILED,
    };
  
    DECLARE_EXTENSION_FUNCTION("diagnostics.sendPacket", DIAGNOSTICS_SENDPACKET);
  
    DiagnosticsSendPacketFunction();
  
   protected:
    ~DiagnosticsSendPacketFunction() override;
  
    // AsyncApiFunction:
    bool Prepare() override;
    // This methods will be implemented differently on different platforms.
    void AsyncWorkStart() override;
    bool Respond() override;
  
   private:
    void SendPingPacket();
    void OnCompleted(SendPacketResultCode result_code,
                     const std::string& ip,
                     double latency);
  
    std::unique_ptr<api::diagnostics::SendPacket::Params> parameters_;
  };
  
  }  // namespace extensions
  
  #endif  // EXTENSIONS_BROWSER_API_DIAGNOSTICS_DIAGNOSTICS_API_H_
  