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//
// Copyright 2015 Google, Inc.
//
// 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 "service/daemon.h"
#include <memory>
#include <base/logging.h>
#include <base/run_loop.h>
#include "service/adapter.h"
#include "service/hal/bluetooth_av_interface.h"
#include "service/hal/bluetooth_avrcp_interface.h"
#include "service/hal/bluetooth_gatt_interface.h"
#include "service/hal/bluetooth_interface.h"
#include "service/ipc/ipc_manager.h"
#include "service/settings.h"
#include "service/switches.h"
namespace bluetooth {
namespace {
// The global Daemon instance.
Daemon* g_daemon = nullptr;
class DaemonImpl : public Daemon, public ipc::IPCManager::Delegate {
public:
DaemonImpl() : initialized_(false) {}
~DaemonImpl() override {
if (!initialized_) return;
CleanUpBluetoothStack();
}
void StartMainLoop() override { base::RunLoop().Run(); }
Settings* GetSettings() const override { return settings_.get(); }
base::MessageLoop* GetMessageLoop() const override {
return message_loop_.get();
}
private:
// ipc::IPCManager::Delegate implementation:
void OnIPCHandlerStarted(ipc::IPCManager::Type /* type */) override {
if (!settings_->EnableOnStart()) return;
adapter_->Enable();
}
void OnIPCHandlerStopped(ipc::IPCManager::Type /* type */) override {
// Do nothing.
}
bool StartUpBluetoothInterfaces() {
if (!hal::BluetoothInterface::Initialize()) goto failed;
if (!hal::BluetoothGattInterface::Initialize()) goto failed;
if (!hal::BluetoothAvInterface::Initialize()) goto failed;
if (!hal::BluetoothAvrcpInterface::Initialize()) goto failed;
return true;
failed:
ShutDownBluetoothInterfaces();
return false;
}
void ShutDownBluetoothInterfaces() {
if (hal::BluetoothGattInterface::IsInitialized())
hal::BluetoothGattInterface::CleanUp();
if (hal::BluetoothInterface::IsInitialized())
hal::BluetoothInterface::CleanUp();
if (hal::BluetoothAvInterface::IsInitialized())
hal::BluetoothAvInterface::CleanUp();
if (hal::BluetoothAvrcpInterface::IsInitialized())
hal::BluetoothAvrcpInterface::CleanUp();
}
void CleanUpBluetoothStack() {
// The Adapter object needs to be cleaned up before the HAL interfaces.
ipc_manager_.reset();
adapter_.reset();
ShutDownBluetoothInterfaces();
}
bool SetUpIPC() {
// If an IPC socket path was given, initialize IPC with it. Otherwise
// initialize Binder IPC.
if (settings_->UseSocketIPC()) {
if (!ipc_manager_->Start(ipc::IPCManager::TYPE_LINUX, this)) {
LOG(ERROR) << "Failed to set up UNIX domain-socket IPCManager";
return false;
}
return true;
}
#if !defined(OS_GENERIC)
if (!ipc_manager_->Start(ipc::IPCManager::TYPE_BINDER, this)) {
LOG(ERROR) << "Failed to set up Binder IPCManager";
return false;
}
#else
if (!ipc_manager_->Start(ipc::IPCManager::TYPE_DBUS, this)) {
LOG(ERROR) << "Failed to set up DBus IPCManager";
return false;
}
#endif
return true;
}
bool Init() override {
CHECK(!initialized_);
message_loop_.reset(new base::MessageLoop());
settings_.reset(new Settings());
if (!settings_->Init()) {
LOG(ERROR) << "Failed to set up Settings";
return false;
}
if (!StartUpBluetoothInterfaces()) {
LOG(ERROR) << "Failed to set up HAL Bluetooth interfaces";
return false;
}
adapter_ = Adapter::Create();
ipc_manager_.reset(new ipc::IPCManager(adapter_.get()));
if (!SetUpIPC()) {
CleanUpBluetoothStack();
return false;
}
initialized_ = true;
LOG(INFO) << "Daemon initialized";
return true;
}
bool initialized_;
std::unique_ptr<base::MessageLoop> message_loop_;
std::unique_ptr<Settings> settings_;
std::unique_ptr<Adapter> adapter_;
std::unique_ptr<ipc::IPCManager> ipc_manager_;
DISALLOW_COPY_AND_ASSIGN(DaemonImpl);
};
} // namespace
// static
bool Daemon::Initialize() {
CHECK(!g_daemon);
g_daemon = new DaemonImpl();
if (g_daemon->Init()) return true;
LOG(ERROR) << "Failed to initialize the Daemon object";
delete g_daemon;
g_daemon = nullptr;
return false;
}
// static
void Daemon::ShutDown() {
CHECK(g_daemon);
delete g_daemon;
g_daemon = nullptr;
}
// static
void Daemon::InitializeForTesting(Daemon* test_daemon) {
CHECK(test_daemon);
CHECK(!g_daemon);
g_daemon = test_daemon;
}
// static
Daemon* Daemon::Get() {
CHECK(g_daemon);
return g_daemon;
}
} // namespace bluetooth
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