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| 1 // Copyright 2015 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 #include "device/device_sensors/device_sensors_motion_impl.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/location.h" |
| 9 #include "base/logging.h" |
| 10 #include "base/process/process.h" |
| 11 #include "base/thread_task_runner_handle.h" |
| 12 #include "device/device_sensors/device_inertial_sensor_service.h" |
| 13 #include "device/device_sensors/type_converters.h" |
| 14 |
| 15 namespace device { |
| 16 |
| 17 // static |
| 18 void DeviceSensorsMotionImpl::Create( |
| 19 scoped_refptr<base::SingleThreadTaskRunner> task_runner, |
| 20 mojo::InterfaceRequest<DeviceSensorsMotion> request) { |
| 21 if (base::ThreadTaskRunnerHandle::Get() == task_runner) { |
| 22 DeviceSensorsMotionImpl::CreateOnTaskRunnerThread(request.Pass()); |
| 23 } else { |
| 24 task_runner->PostTask( |
| 25 FROM_HERE, |
| 26 base::Bind(&DeviceSensorsMotionImpl::CreateOnTaskRunnerThread, |
| 27 base::Passed(&request))); |
| 28 } |
| 29 } |
| 30 |
| 31 // static |
| 32 void DeviceSensorsMotionImpl::CreateOnTaskRunnerThread( |
| 33 mojo::InterfaceRequest<DeviceSensorsMotion> request) { |
| 34 new DeviceSensorsMotionImpl(request.Pass()); |
| 35 } |
| 36 |
| 37 DeviceSensorsMotionImpl::DeviceSensorsMotionImpl( |
| 38 mojo::InterfaceRequest<DeviceSensorsMotion> request) |
| 39 : binding_(this, request.Pass()), is_started_(false) { |
| 40 } |
| 41 |
| 42 DeviceSensorsMotionImpl::~DeviceSensorsMotionImpl() { |
| 43 if (!is_started_) |
| 44 return; |
| 45 DeviceInertialSensorService::GetInstance()->RemoveConsumer( |
| 46 CONSUMER_TYPE_MOTION); |
| 47 } |
| 48 |
| 49 void DeviceSensorsMotionImpl::StartPolling( |
| 50 int32 peer_process_id, |
| 51 const StartPollingCallback& callback) { |
| 52 if (is_started_) |
| 53 return; |
| 54 is_started_ = true; |
| 55 LOG(WARNING) << "DeviceSensorsMotionImpl::StartPolling, peer process id: " |
| 56 << peer_process_id; |
| 57 LOG(WARNING) << "DeviceSensorsMotionImpl::StartPolling, current process id: " |
| 58 << base::GetCurrentProcId(); |
| 59 DeviceInertialSensorService::GetInstance()->AddConsumer(CONSUMER_TYPE_MOTION); |
| 60 |
| 61 base::Process peer_process = |
| 62 base::Process::OpenWithExtraPrivileges(peer_process_id); |
| 63 base::SharedMemoryHandle handle = |
| 64 DeviceInertialSensorService::GetInstance() |
| 65 ->GetSharedMemoryHandleForProcess(CONSUMER_TYPE_MOTION, |
| 66 peer_process.Handle()); |
| 67 device::SharedMemoryPtr result = device::SharedMemory::From(handle); |
| 68 LOG(WARNING) |
| 69 << "DeviceSensorsMotionImpl::StartPolling, shared memory handle: " |
| 70 << result->fd; |
| 71 callback.Run(result.Pass()); |
| 72 } |
| 73 |
| 74 } // namespace device |
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