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// Copyright 2017 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_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_MAC_H_
#define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_MAC_H_
#include "device/bluetooth/bluetooth_remote_gatt_descriptor.h"
#import <CoreBluetooth/CoreBluetooth.h>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
namespace device {
class BluetoothRemoteGattCharacteristicMac;
// The BluetoothRemoteGattDescriptorMac class implements
// BluetoothRemoteGattDescriptor for remote GATT services on macOS.
class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattDescriptorMac
: public BluetoothRemoteGattDescriptor {
public:
BluetoothRemoteGattDescriptorMac(
BluetoothRemoteGattCharacteristicMac* characteristic,
CBDescriptor* descriptor);
~BluetoothRemoteGattDescriptorMac() override;
// BluetoothGattDescriptor
std::string GetIdentifier() const override;
BluetoothUUID GetUUID() const override;
BluetoothGattCharacteristic::Permissions GetPermissions() const override;
// BluetoothRemoteGattDescriptor
const std::vector<uint8_t>& GetValue() const override;
BluetoothRemoteGattCharacteristic* GetCharacteristic() const override;
void ReadRemoteDescriptor(ValueCallback callback) override;
void WriteRemoteDescriptor(base::span<const uint8_t> new_value,
base::OnceClosure callback,
ErrorCallback error_callback) override;
private:
friend class BluetoothLowEnergyDeviceMac;
friend class BluetoothRemoteGattCharacteristicMac;
friend class BluetoothTestMac;
// Calls callbacks, when -[id<CBPeripheralDelegate>
// peripheral:didUpdateValueForDescriptor:error:] is called.
void DidUpdateValueForDescriptor(NSError* error);
// Calls callbacks, when -[id<CBPeripheralDelegate>
// peripheral:didWriteValueForDescriptor:error:] is called.
void DidWriteValueForDescriptor(NSError* error);
bool HasPendingRead() const { return !read_value_callback_.is_null(); }
bool HasPendingWrite() const {
return !write_value_callbacks_.first.is_null();
}
// Returns CoreBluetooth peripheral.
CBPeripheral* GetCBPeripheral() const;
// Returns CoreBluetooth descriptor.
CBDescriptor* GetCBDescriptor() const;
// gatt_characteristic_ owns instances of this class.
raw_ptr<BluetoothRemoteGattCharacteristicMac> gatt_characteristic_;
// Descriptor from CoreBluetooth.
CBDescriptor* __strong cb_descriptor_;
// Descriptor identifier.
std::string identifier_;
// Descriptor UUID.
BluetoothUUID uuid_;
// Descriptor value.
std::vector<uint8_t> value_;
// The destructor runs callbacks. Methods can use |destructor_called_| to
// protect against reentrant calls to a partially deleted instance.
bool destructor_called_ = false;
// ReadRemoteDescriptor request callback.
ValueCallback read_value_callback_;
// WriteRemoteDescriptor request callbacks.
std::pair<base::OnceClosure, ErrorCallback> write_value_callbacks_;
};
// Stream operator for logging.
DEVICE_BLUETOOTH_EXPORT std::ostream& operator<<(
std::ostream& out,
const BluetoothRemoteGattDescriptorMac& descriptor);
} // namespace device
#endif // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_MAC_H_
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