blob: 1b08220bcf75c019bcf3e3137a9c2b137b3b2984 [file] [log] [blame]
// Copyright (c) 2012 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.
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread.h"
#include "tools/android/forwarder2/forwarders_manager.h"
#include "tools/android/forwarder2/pipe_notifier.h"
#include "tools/android/forwarder2/self_deleter_helper.h"
#include "tools/android/forwarder2/socket.h"
namespace forwarder2 {
// This class partners with DeviceController and has the same lifetime and
// threading characteristics as DeviceListener. In a nutshell, this class
// operates on its own thread and is destroyed on the thread it was constructed
// on. The class' deletion can happen in two different ways:
// - Its destructor was called by its owner (HostControllersManager).
// - Its internal thread requested self-deletion after an error happened. In
// this case the owner (HostControllersManager) is notified on the
// construction thread through the provided ErrorCallback invoked with the
// HostController instance. When this callback is invoked, it's up to the
// owner to delete the instance.
class HostController {
// Callback used for self-deletion when an error happens so that the client
// can perform some cleanup work before deleting the HostController instance.
typedef base::Callback<void(std::unique_ptr<HostController>)> ErrorCallback;
// If |device_port| is zero then a dynamic port is allocated (and retrievable
// through device_port() below).
static std::unique_ptr<HostController> Create(
const std::string& device_serial,
int device_port,
int host_port,
int adb_port,
int exit_notifier_fd,
const ErrorCallback& error_callback);
// Starts the internal controller thread.
void Start();
int adb_port() const { return adb_port_; }
int device_port() const { return device_port_; }
HostController(const std::string& device_serial,
int device_port,
int host_port,
int adb_port,
const ErrorCallback& error_callback,
std::unique_ptr<Socket> adb_control_socket,
std::unique_ptr<PipeNotifier> delete_controller_notifier);
void ReadNextCommandSoon();
void ReadCommandOnInternalThread();
bool StartForwarder(std::unique_ptr<Socket> host_server_data_socket);
// Note that this gets also called when ~HostController() is invoked.
void OnInternalThreadError();
void UnmapPortOnDevice();
SelfDeleterHelper<HostController> self_deleter_helper_;
const std::string device_serial_;
const int device_port_;
const int host_port_;
const int adb_port_;
std::unique_ptr<Socket> adb_control_socket_;
// Used to cancel the pending blocking IO operations when the host controller
// instance is deleted.
std::unique_ptr<PipeNotifier> delete_controller_notifier_;
// Task runner used for deletion set at deletion time (i.e. the object is
// deleted on the same thread it is created on).
const scoped_refptr<base::SingleThreadTaskRunner> deletion_task_runner_;
base::Thread thread_;
ForwardersManager forwarders_manager_;
} // namespace forwarder2