tools/android/forwarder2/host_controller.h

   1 // Copyright (c) 2012 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 TOOLS_ANDROID_FORWARDER2_HOST_CONTROLLER_H_
   6 #define TOOLS_ANDROID_FORWARDER2_HOST_CONTROLLER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "tools/android/forwarder2/pipe_notifier.h"
  14 #include "tools/android/forwarder2/socket.h"
  15 #include "tools/android/forwarder2/thread.h"
  16
  17 namespace forwarder2 {
  18
  19 class HostProxy;
  20
  21 class HostController : public Thread {
  22  public:
  23   // If |device_port| is zero, it dynamically allocates a port.
  24   HostController(int device_port,
  25                  const std::string& forward_to_host,
  26                  int forward_to_host_port,
  27                  int adb_port,
  28                  int exit_notifier_fd);
  29   virtual ~HostController();
  30
  31   // Connects to the device forwarder app and sets the |device_port_| to the
  32   // dynamically allocated port (when the provided |device_port| is zero).
  33   // Returns true on success.  Clients must call Connect() before calling
  34   // Start().
  35   bool Connect();
  36
  37   // Gets the current device allocated port. Must be called after Connect().
  38   int device_port() const { return device_port_; }
  39
  40  protected:
  41   // Thread:
  42   virtual void Run() OVERRIDE;
  43
  44  private:
  45   void StartForwarder(scoped_ptr<Socket> host_server_data_socket_ptr);
  46
  47   // Helper method that creates a socket and adds the appropriate event file
  48   // descriptors.
  49   scoped_ptr<Socket> CreateSocket();
  50
  51   Socket adb_control_socket_;
  52   int device_port_;
  53   const std::string forward_to_host_;
  54   const int forward_to_host_port_;
  55   const int adb_port_;
  56
  57   // Used to notify the controller when the process is killed.
  58   const int global_exit_notifier_fd_;
  59   // Used to cancel the pending blocking IO operations when the host controller
  60   // instance is deleted.
  61   PipeNotifier delete_controller_notifier_;
  62
  63   bool ready_;
  64
  65   DISALLOW_COPY_AND_ASSIGN(HostController);
  66 };
  67
  68 }  // namespace forwarder2
  69
  70 #endif  // TOOLS_ANDROID_FORWARDER2_HOST_CONTROLLER_H_