Merge pull request #21 from marcuschangarm/draft
Chained callbacks for onDataSent
This commit is contained in:
Rohit Grover
commit
270ac8d7c5
2 changed files with 794 additions and 779 deletions
1350
public/BLEDevice.h
1350
public/BLEDevice.h
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@ -1,110 +1,113 @@
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/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __GATT_SERVER_H__
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#define __GATT_SERVER_H__
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#include "GattService.h"
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#include "GattServerEvents.h"
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#include "GattCharacteristicWriteCBParams.h"
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#include "CallChainOfFunctionPointersWithContext.h"
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class GattServer {
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public:
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/* Event callback handlers. */
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typedef void (*EventCallback_t)(uint16_t attributeHandle);
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typedef void (*ServerEventCallback_t)(void); /**< independent of any particular attribute */
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typedef void (*ServerEventCallbackWithCount_t)(unsigned count); /**< independent of any particular attribute */
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protected:
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GattServer() : serviceCount(0), characteristicCount(0), onDataSent(NULL), onDataWritten(), onUpdatesEnabled(NULL), onUpdatesDisabled(NULL), onConfirmationReceived(NULL) {
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/* empty */
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}
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friend class BLEDevice;
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private:
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/* These functions must be defined in the sub-class */
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virtual ble_error_t addService(GattService &) = 0;
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virtual ble_error_t readValue(uint16_t handle, uint8_t buffer[], uint16_t *const lengthP) = 0;
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virtual ble_error_t updateValue(uint16_t, uint8_t[], uint16_t, bool localOnly = false) = 0;
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virtual ble_error_t initializeGATTDatabase(void) = 0;
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// ToDo: For updateValue, check the CCCD to see if the value we are
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// updating has the notify or indicate bits sent, and if BOTH are set
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// be sure to call sd_ble_gatts_hvx() twice with notify then indicate!
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// Strange use case, but valid and must be covered!
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void setOnDataSent(ServerEventCallbackWithCount_t callback) {onDataSent = callback;}
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void setOnDataWritten(void (*callback)(const GattCharacteristicWriteCBParams *eventDataP)) {onDataWritten.add(callback);}
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template <typename T>
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void setOnDataWritten(T *objPtr, void (T::*memberPtr)(const GattCharacteristicWriteCBParams *context)) {
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onDataWritten.add(objPtr, memberPtr);
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}
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void setOnUpdatesEnabled(EventCallback_t callback) {onUpdatesEnabled = callback;}
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void setOnUpdatesDisabled(EventCallback_t callback) {onUpdatesDisabled = callback;}
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void setOnConfirmationReceived(EventCallback_t callback) {onConfirmationReceived = callback;}
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protected:
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void handleDataWrittenEvent(const GattCharacteristicWriteCBParams *params) {
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if (onDataWritten.hasCallbacksAttached()) {
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onDataWritten.call(params);
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}
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}
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void handleEvent(GattServerEvents::gattEvent_e type, uint16_t charHandle) {
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switch (type) {
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case GattServerEvents::GATT_EVENT_UPDATES_ENABLED:
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if (onUpdatesEnabled) {
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onUpdatesEnabled(charHandle);
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}
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break;
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case GattServerEvents::GATT_EVENT_UPDATES_DISABLED:
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if (onUpdatesDisabled) {
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onUpdatesDisabled(charHandle);
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}
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break;
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case GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED:
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if (onConfirmationReceived) {
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onConfirmationReceived(charHandle);
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}
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break;
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}
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}
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void handleDataSentEvent(unsigned count) {
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if (onDataSent) {
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onDataSent(count);
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}
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}
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protected:
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uint8_t serviceCount;
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uint8_t characteristicCount;
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private:
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ServerEventCallbackWithCount_t onDataSent;
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CallChainOfFunctionPointersWithContext<const GattCharacteristicWriteCBParams *> onDataWritten;
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EventCallback_t onUpdatesEnabled;
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EventCallback_t onUpdatesDisabled;
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EventCallback_t onConfirmationReceived;
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private:
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/* disallow copy and assignment */
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GattServer(const GattServer &);
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GattServer& operator=(const GattServer &);
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};
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#endif // ifndef __GATT_SERVER_H__
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/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __GATT_SERVER_H__
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#define __GATT_SERVER_H__
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#include "GattService.h"
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#include "GattServerEvents.h"
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#include "GattCharacteristicWriteCBParams.h"
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#include "CallChainOfFunctionPointersWithContext.h"
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class GattServer {
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public:
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/* Event callback handlers. */
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typedef void (*EventCallback_t)(uint16_t attributeHandle);
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typedef void (*ServerEventCallback_t)(void); /**< independent of any particular attribute */
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protected:
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GattServer() : serviceCount(0), characteristicCount(0), onDataSent(), onDataWritten(), onUpdatesEnabled(NULL), onUpdatesDisabled(NULL), onConfirmationReceived(NULL) {
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/* empty */
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}
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friend class BLEDevice;
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private:
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/* These functions must be defined in the sub-class */
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virtual ble_error_t addService(GattService &) = 0;
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virtual ble_error_t readValue(uint16_t handle, uint8_t buffer[], uint16_t *const lengthP) = 0;
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virtual ble_error_t updateValue(uint16_t, uint8_t[], uint16_t, bool localOnly = false) = 0;
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virtual ble_error_t initializeGATTDatabase(void) = 0;
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// ToDo: For updateValue, check the CCCD to see if the value we are
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// updating has the notify or indicate bits sent, and if BOTH are set
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// be sure to call sd_ble_gatts_hvx() twice with notify then indicate!
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// Strange use case, but valid and must be covered!
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void setOnDataSent(void (*callback)(unsigned count)) {onDataSent.add(callback);}
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template <typename T>
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void setOnDataSent(T *objPtr, void (T::*memberPtr)(unsigned count)) {
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onDataSent.add(objPtr, memberPtr);
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}
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void setOnDataWritten(void (*callback)(const GattCharacteristicWriteCBParams *eventDataP)) {onDataWritten.add(callback);}
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template <typename T>
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void setOnDataWritten(T *objPtr, void (T::*memberPtr)(const GattCharacteristicWriteCBParams *context)) {
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onDataWritten.add(objPtr, memberPtr);
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}
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void setOnUpdatesEnabled(EventCallback_t callback) {onUpdatesEnabled = callback;}
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void setOnUpdatesDisabled(EventCallback_t callback) {onUpdatesDisabled = callback;}
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void setOnConfirmationReceived(EventCallback_t callback) {onConfirmationReceived = callback;}
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protected:
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void handleDataWrittenEvent(const GattCharacteristicWriteCBParams *params) {
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if (onDataWritten.hasCallbacksAttached()) {
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onDataWritten.call(params);
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}
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}
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void handleEvent(GattServerEvents::gattEvent_e type, uint16_t charHandle) {
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switch (type) {
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case GattServerEvents::GATT_EVENT_UPDATES_ENABLED:
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if (onUpdatesEnabled) {
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onUpdatesEnabled(charHandle);
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}
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break;
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case GattServerEvents::GATT_EVENT_UPDATES_DISABLED:
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if (onUpdatesDisabled) {
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onUpdatesDisabled(charHandle);
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}
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break;
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case GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED:
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if (onConfirmationReceived) {
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onConfirmationReceived(charHandle);
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}
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break;
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}
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}
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void handleDataSentEvent(unsigned count) {
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if (onDataSent.hasCallbacksAttached()) {
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onDataSent.call(count);
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}
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}
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protected:
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uint8_t serviceCount;
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uint8_t characteristicCount;
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private:
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CallChainOfFunctionPointersWithContext<unsigned> onDataSent;
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CallChainOfFunctionPointersWithContext<const GattCharacteristicWriteCBParams *> onDataWritten;
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EventCallback_t onUpdatesEnabled;
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EventCallback_t onUpdatesDisabled;
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EventCallback_t onConfirmationReceived;
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private:
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/* disallow copy and assignment */
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GattServer(const GattServer &);
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GattServer& operator=(const GattServer &);
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};
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#endif // ifndef __GATT_SERVER_H__
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