| // 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. |
| |
| #ifndef CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_ |
| #define CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_ |
| |
| #include <memory> |
| |
| #include "base/callback.h" |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "build/build_config.h" |
| #include "content/child/child_thread_impl.h" |
| #include "content/public/utility/utility_thread.h" |
| #include "mojo/public/cpp/bindings/generic_pending_receiver.h" |
| #include "third_party/blink/public/platform/platform.h" |
| |
| namespace mojo { |
| class ServiceFactory; |
| } |
| |
| namespace content { |
| class UtilityServiceFactory; |
| |
| // This class represents the background thread where the utility task runs. |
| class UtilityThreadImpl : public UtilityThread, |
| public ChildThreadImpl { |
| public: |
| explicit UtilityThreadImpl(base::RepeatingClosure quit_closure); |
| // Constructor used when running in single process mode. |
| explicit UtilityThreadImpl(const InProcessChildThreadParams& params); |
| ~UtilityThreadImpl() override; |
| void Shutdown() override; |
| |
| // UtilityThread: |
| void ReleaseProcess() override; |
| void EnsureBlinkInitialized() override; |
| #if defined(OS_POSIX) && !defined(OS_ANDROID) |
| void EnsureBlinkInitializedWithSandboxSupport() override; |
| #endif |
| |
| // Handles an incoming service interface receiver from a browser-side |
| // ServiceProcessHost. This is called only if `receiver` didn't first match |
| // any registered IO-thread service handlers in this process. If successful, |
| // `termination_callback` will eventually be invoked when the new service |
| // instance terminates. |
| // |
| // If there is no matching service, `receiver` is discarded and |
| // `termination_callback` is invoked immediately. |
| void HandleServiceRequest(mojo::GenericPendingReceiver receiver, |
| base::OnceClosure termination_callback); |
| |
| private: |
| void EnsureBlinkInitializedInternal(bool sandbox_support); |
| void Init(); |
| |
| // ChildThreadImpl: |
| void RunServiceDeprecated( |
| const std::string& service_name, |
| mojo::ScopedMessagePipeHandle service_pipe) override; |
| |
| // blink::Platform implementation if needed. |
| std::unique_ptr<blink::Platform> blink_platform_impl_; |
| |
| // Helper to handle incoming RunServiceDeprecated calls. Note that this is |
| // deprecated and only remains in support of some embedders which haven't |
| // migrated away from Service Manager-based services yet. |
| std::unique_ptr<UtilityServiceFactory> service_factory_; |
| |
| // The ServiceFactory used to handle incoming service requests from a |
| // browser-side ServiceProcessHost. Any service registered here will run on |
| // the main thread of its service process. |
| std::unique_ptr<mojo::ServiceFactory> main_thread_services_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UtilityThreadImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_ |