mbed-os/features/FEATURE_BLE/ble/CharacteristicDescriptorDis...

100 lines
4.1 KiB
C++

/* mbed Microcontroller Library
* Copyright (c) 2006-2015 ARM Limited
*
* 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.
*/
#ifndef __CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__
#define __CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__
#include "FunctionPointerWithContext.h"
class DiscoveredCharacteristic; // forward declaration
class DiscoveredCharacteristicDescriptor; // forward declaration
/**
* @brief Contain all definitions of callbacks and callbacks parameters types
* related to characteristic descriptor discovery.
*
* @details This class act like a namespace for characteristic descriptor discovery
* types. It act like ServiceDiscovery by providing callbacks and callbacks
* parameters types related to the characteristic descriptor discovery process but
* contrary to ServiceDiscovery class, it does not force the porter to use a
* specific interface for the characteristic descriptor discovery process.
*/
class CharacteristicDescriptorDiscovery {
public:
/**
* @brief Parameter type of CharacteristicDescriptorDiscovery::DiscoveryCallback_t.
* @details Every time a characteristic descriptor has been discovered, the callback
* registered for the discovery operation through GattClient::discoverCharacteristicDescriptors
* or DiscoveredCharacteristic::discoverDescriptors will be called with this parameter.
*
*/
struct DiscoveryCallbackParams_t {
/**
* The characteristic owning the DiscoveredCharacteristicDescriptor
*/
const DiscoveredCharacteristic& characteristic;
/**
* The characteristic descriptor discovered
*/
const DiscoveredCharacteristicDescriptor& descriptor;
};
/**
* @brief Parameter type of CharacteristicDescriptorDiscovery::TerminationCallback_t.
* @details Once a characteristic descriptor discovery process terminate, the termination
* callback registered for the discovery operation through
* GattClient::discoverCharacteristicDescriptors or DiscoveredCharacteristic::discoverDescriptors
* will be called with this parameter.
*/
struct TerminationCallbackParams_t {
/**
* The characteristic for which the descriptors has been discovered
*/
const DiscoveredCharacteristic& characteristic;
/**
* status of the discovery operation
*/
ble_error_t status;
};
/**
* @brief Callback type for when a matching characteristic descriptor is found during
* characteristic descriptor discovery.
*
* @param param A pointer to a DiscoveryCallbackParams_t object which will remain
* valid for the lifetime of the callback. Memory for this object is owned by
* the BLE_API eventing framework. The application can safely make a persistent
* shallow-copy of this object in order to work with the service beyond the
* callback.
*/
typedef FunctionPointerWithContext<const DiscoveryCallbackParams_t*> DiscoveryCallback_t;
/**
* @brief Callback type for when characteristic descriptor discovery terminates.
*
* @param param A pointer to a TerminationCallbackParams_t object which will remain
* valid for the lifetime of the callback. Memory for this object is owned by
* the BLE_API eventing framework. The application can safely make a persistent
* shallow-copy of this object in order to work with the service beyond the
* callback.
*/
typedef FunctionPointerWithContext<const TerminationCallbackParams_t*> TerminationCallback_t;
};
#endif // ifndef __CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__