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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.
//
#pragma once
#include <mutex>
#include <unordered_map>
#include <base/macros.h>
#include <bluetooth/uuid.h>
#include "service/bluetooth_instance.h"
#include "service/hal/bluetooth_gatt_interface.h"
namespace bluetooth {
// A GattClient instance represents an application's handle to perform GATT
// client-role operations. Instances cannot be created directly and should be
// obtained through the factory.
class GattClient : public BluetoothInstance {
public:
~GattClient() override;
// BluetoothClientInstace overrides:
const Uuid& GetAppIdentifier() const override;
int GetInstanceId() const override;
private:
friend class GattClientFactory;
// Constructor shouldn't be called directly as instances are meant to be
// obtained from the factory.
GattClient(const Uuid& uuid, int client_id);
// See getters above for documentation.
Uuid app_identifier_;
int client_id_;
DISALLOW_COPY_AND_ASSIGN(GattClient);
};
// GattClientFactory is used to register and obtain a per-application GattClient
// instance. Users should call RegisterClient to obtain their own unique
// GattClient instance that has been registered with the Bluetooth stack.
class GattClientFactory : public BluetoothInstanceFactory,
private hal::BluetoothGattInterface::ClientObserver {
public:
// Don't construct/destruct directly except in tests. Instead, obtain a handle
// from an Adapter instance.
GattClientFactory();
~GattClientFactory() override;
// BluetoothInstanceFactory override:
bool RegisterInstance(const Uuid& uuid,
const RegisterCallback& callback) override;
private:
// hal::BluetoothGattInterface::ClientObserver override:
void RegisterClientCallback(hal::BluetoothGattInterface* gatt_iface,
int status, int client_id,
const Uuid& app_uuid) override;
// Map of pending calls to register.
std::mutex pending_calls_lock_;
std::unordered_map<Uuid, RegisterCallback> pending_calls_;
DISALLOW_COPY_AND_ASSIGN(GattClientFactory);
};
} // namespace bluetooth
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