| // Copyright 2016 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 "services/video_capture/service_impl.h" |
| |
| #include "mojo/public/cpp/bindings/strong_binding.h" |
| #include "services/service_manager/public/cpp/service_context.h" |
| #include "services/video_capture/device_factory_provider_impl.h" |
| #include "services/video_capture/public/interfaces/constants.mojom.h" |
| |
| namespace video_capture { |
| |
| ServiceImpl::ServiceImpl() |
| : shutdown_delay_in_seconds_(mojom::kDefaultShutdownDelayInSeconds), |
| weak_factory_(this) {} |
| |
| ServiceImpl::~ServiceImpl() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| } |
| |
| void ServiceImpl::OnStart() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| ref_factory_ = |
| base::MakeUnique<service_manager::ServiceContextRefFactory>(base::Bind( |
| &ServiceImpl::MaybeRequestQuitDelayed, base::Unretained(this))); |
| registry_.AddInterface<mojom::DeviceFactoryProvider>( |
| // Unretained |this| is safe because |registry_| is owned by |this|. |
| base::Bind(&ServiceImpl::OnDeviceFactoryProviderRequest, |
| base::Unretained(this))); |
| } |
| |
| void ServiceImpl::OnBindInterface( |
| const service_manager::BindSourceInfo& source_info, |
| const std::string& interface_name, |
| mojo::ScopedMessagePipeHandle interface_pipe) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| registry_.BindInterface(source_info, interface_name, |
| std::move(interface_pipe)); |
| } |
| |
| bool ServiceImpl::OnServiceManagerConnectionLost() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| return true; |
| } |
| |
| void ServiceImpl::OnDeviceFactoryProviderRequest( |
| const service_manager::BindSourceInfo& source_info, |
| mojom::DeviceFactoryProviderRequest request) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| mojo::MakeStrongBinding( |
| base::MakeUnique<DeviceFactoryProviderImpl>( |
| ref_factory_->CreateRef(), |
| // Use of unretained |this| is safe, because the |
| // VideoCaptureServiceImpl has shared ownership of |this| via the |
| // reference created by ref_factory->CreateRef(). |
| base::Bind(&ServiceImpl::SetShutdownDelayInSeconds, |
| base::Unretained(this))), |
| std::move(request)); |
| } |
| |
| void ServiceImpl::SetShutdownDelayInSeconds(float seconds) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| shutdown_delay_in_seconds_ = seconds; |
| } |
| |
| void ServiceImpl::MaybeRequestQuitDelayed() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| base::ThreadTaskRunnerHandle::Get()->PostDelayedTask( |
| FROM_HERE, |
| base::Bind(&ServiceImpl::MaybeRequestQuit, weak_factory_.GetWeakPtr()), |
| base::TimeDelta::FromSeconds(shutdown_delay_in_seconds_)); |
| } |
| |
| void ServiceImpl::MaybeRequestQuit() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(ref_factory_); |
| if (ref_factory_->HasNoRefs()) { |
| context()->RequestQuit(); |
| } |
| } |
| |
| } // namespace video_capture |