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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef DEVICE_BLUETOOTH_FLOSS_BLUETOOTH_GATT_SERVICE_FLOSS_H_
#define DEVICE_BLUETOOTH_FLOSS_BLUETOOTH_GATT_SERVICE_FLOSS_H_
#include <map>
#include "device/bluetooth/bluetooth_gatt_service.h"
#include "device/bluetooth/floss/floss_gatt_manager_client.h"
namespace floss {
const base::TimeDelta kResponseTimeout = base::Seconds(1);
struct GattRequest {
std::string address;
int32_t request_id;
int32_t offset;
};
class BluetoothAdapterFloss;
// Subclass of |BluetoothGattService| for platforms that use Floss.
class DEVICE_BLUETOOTH_EXPORT BluetoothGattServiceFloss
: public device::BluetoothGattService,
public FlossGattClientObserver,
public FlossGattServerObserver {
public:
BluetoothGattServiceFloss(const BluetoothGattServiceFloss&) = delete;
BluetoothGattServiceFloss& operator=(const BluetoothGattServiceFloss&) =
delete;
// Returns the adapter associated with this service.
BluetoothAdapterFloss* GetAdapter() const;
// Processes a |GattStatus| into a service error code.
static device::BluetoothGattService::GattErrorCode GattStatusToServiceError(
const GattStatus status);
// Processes a |GattErrorCode| into a status code.
static GattStatus GattServiceErrorToStatus(
device::BluetoothGattService::GattErrorCode error_code);
// Adds an observer for a specific handle. This observer will only get
// callbacks invoked for that specific handle.
void AddObserverForHandle(int32_t handle, FlossGattClientObserver* observer);
void AddServerObserverForHandle(int32_t handle,
FlossGattServerObserver* observer);
// Removes the observer for a specific handle.
void RemoveObserverForHandle(int32_t handle);
void RemoveServerObserverForHandle(int32_t handle);
// FlossGattClientObserver overrides.
void GattCharacteristicRead(std::string address,
GattStatus status,
int32_t handle,
const std::vector<uint8_t>& data) override;
void GattCharacteristicWrite(std::string address,
GattStatus status,
int32_t handle) override;
void GattDescriptorRead(std::string address,
GattStatus status,
int32_t handle,
const std::vector<uint8_t>& data) override;
void GattDescriptorWrite(std::string address,
GattStatus status,
int32_t handle) override;
void GattNotify(std::string address,
int32_t handle,
const std::vector<uint8_t>& data) override;
// FlossGattServerObserver overrides.
void GattServerCharacteristicReadRequest(std::string address,
int32_t request_id,
int32_t offset,
bool is_long,
int32_t handle) override;
void GattServerDescriptorReadRequest(std::string address,
int32_t request_id,
int32_t offset,
bool is_long,
int32_t handle) override;
void GattServerCharacteristicWriteRequest(
std::string address,
int32_t request_id,
int32_t offset,
int32_t length,
bool is_prepared_write,
bool needs_response,
int32_t handle,
std::vector<uint8_t> value) override;
void GattServerDescriptorWriteRequest(std::string address,
int32_t request_id,
int32_t offset,
int32_t length,
bool is_prepared_write,
bool needs_response,
int32_t handle,
std::vector<uint8_t> value) override;
void GattServerExecuteWrite(std::string address,
int32_t request_id,
bool execute_write) override;
protected:
explicit BluetoothGattServiceFloss(BluetoothAdapterFloss* adapter);
~BluetoothGattServiceFloss() override;
// Cache of observers tied to a specific handle. When callbacks are observed
// for a specific handle within this GATT service, it is dispatched here to
// that specific observer.
std::map<int32_t, raw_ptr<FlossGattClientObserver>> observer_by_handle_;
std::map<int32_t, raw_ptr<FlossGattServerObserver>>
server_observer_by_handle_;
private:
// The adapter associated with (and which indirectly owns) this service.
raw_ptr<BluetoothAdapterFloss> adapter_;
};
} // namespace floss
#endif // DEVICE_BLUETOOTH_FLOSS_BLUETOOTH_GATT_SERVICE_FLOSS_H_
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