| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "stack_manager.h" |
| |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <chrono> |
| #include <future> |
| #include <queue> |
| |
| #include "common/bind.h" |
| #include "module.h" |
| #include "os/handler.h" |
| #include "os/log.h" |
| #include "os/thread.h" |
| #include "os/wakelock_manager.h" |
| |
| using ::bluetooth::os::Handler; |
| using ::bluetooth::os::Thread; |
| using ::bluetooth::os::WakelockManager; |
| |
| namespace bluetooth { |
| |
| constexpr char bluetooth_pid_file[] = "/var/run/bluetooth"; |
| |
| void StackManager::StartUp(ModuleList* modules, Thread* stack_thread) { |
| management_thread_ = new Thread("management_thread", Thread::Priority::NORMAL); |
| handler_ = new Handler(management_thread_); |
| |
| WakelockManager::Get().Acquire(); |
| |
| std::promise<void> promise; |
| auto future = promise.get_future(); |
| handler_->Post(common::BindOnce(&StackManager::handle_start_up, common::Unretained(this), modules, stack_thread, |
| std::move(promise))); |
| |
| auto init_status = future.wait_for(std::chrono::seconds(3)); |
| |
| WakelockManager::Get().Release(); |
| |
| ASSERT_LOG( |
| init_status == std::future_status::ready, |
| "Can't start stack, last instance: %s", |
| registry_.last_instance_.c_str()); |
| |
| pid_fd_ = open(bluetooth_pid_file, O_WRONLY | O_CREAT, 0644); |
| pid_t my_pid = getpid(); |
| write(pid_fd_, &my_pid, sizeof(pid_t)); |
| |
| LOG_INFO("init complete"); |
| } |
| |
| void StackManager::handle_start_up(ModuleList* modules, Thread* stack_thread, std::promise<void> promise) { |
| registry_.Start(modules, stack_thread); |
| promise.set_value(); |
| } |
| |
| void StackManager::ShutDown() { |
| WakelockManager::Get().Acquire(); |
| |
| std::promise<void> promise; |
| auto future = promise.get_future(); |
| handler_->Post(common::BindOnce(&StackManager::handle_shut_down, common::Unretained(this), std::move(promise))); |
| |
| auto stop_status = future.wait_for(std::chrono::seconds(5)); |
| |
| WakelockManager::Get().Release(); |
| WakelockManager::Get().CleanUp(); |
| |
| ASSERT_LOG( |
| stop_status == std::future_status::ready, |
| "Can't stop stack, last instance: %s", |
| registry_.last_instance_.c_str()); |
| |
| handler_->Clear(); |
| handler_->WaitUntilStopped(std::chrono::milliseconds(2000)); |
| delete handler_; |
| delete management_thread_; |
| |
| unlink(bluetooth_pid_file); |
| close(pid_fd_); |
| } |
| |
| void StackManager::handle_shut_down(std::promise<void> promise) { |
| registry_.StopAll(); |
| promise.set_value(); |
| } |
| |
| } // namespace bluetooth |