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