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fix GattServer::onDataWritten()

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This commit is contained in:
Rohit Grover 2015-06-19 08:37:04 +01:00
parent 0553e6f440
commit 962533e39f
2 changed files with 42 additions and 25 deletions
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30
public/BLE.h
View file

@ -1145,8 +1145,11 @@ public:
}
/**
* Setup a callback for when a characteristic has its value updated by a
* client.
* Setup a callback for when an attribute has its value updated by or at the
* connected peer. For a peripheral, this callback triggered when the local
* GATT server has an attribute updated by a write command from the peer.
* For a Central, this callback is triggered when a response is received for
* a write request.
*
* @Note: it is possible to chain together multiple onDataWritten callbacks
* (potentially from different modules of an application) to receive updates
@ -1155,9 +1158,18 @@ public:
*
* @Note: it is also possible to setup a callback into a member function of
* some object.
*
* @note: This API is now *deprecated* and will be dropped in the future.
* You should use the parallel API from GattServer directly. A former call
* to ble.onDataWritten(...) should be replaced with
* ble.gap().onDataWritten(...).
*/
void onDataWritten(void (*callback)(const GattWriteCallbackParams *eventDataP));
template <typename T> void onDataWritten(T * objPtr, void (T::*memberPtr)(const GattWriteCallbackParams *context));
void onDataWritten(void (*callback)(const GattWriteCallbackParams *eventDataP)) {
gattServer().onDataWritten(callback);
}
template <typename T> void onDataWritten(T * objPtr, void (T::*memberPtr)(const GattWriteCallbackParams *context)) {
gattServer().onDataWritten(objPtr, memberPtr);
}
/**
* Setup a callback for when a characteristic is being read by a client.
@ -1276,16 +1288,6 @@ typedef BLE BLEDevice; /* DEPRECATED. This type alias is retained for the sake o
/* BLE methods. Most of these simply forward the calls to the underlying
* transport.*/
inline void
BLE::onDataWritten(void (*callback)(const GattWriteCallbackParams *eventDataP)) {
transport->getGattServer().setOnDataWritten(callback);
}
template <typename T> inline void
BLE::onDataWritten(T *objPtr, void (T::*memberPtr)(const GattWriteCallbackParams *context)) {
transport->getGattServer().setOnDataWritten(objPtr, memberPtr);
}
inline ble_error_t
BLE::onDataRead(void (*callback)(const GattReadCallbackParams *eventDataP)) {
return transport->getGattServer().setOnDataRead(callback);

37
public/GattServer.h
View file

@ -35,7 +35,7 @@ protected:
serviceCount(0),
characteristicCount(0),
dataSentCallChain(),
onDataWritten(),
dataWrittenCallChain(),
onDataRead(),
onUpdatesEnabled(NULL),
onUpdatesDisabled(NULL),
@ -160,10 +160,25 @@ public:
dataSentCallChain.add(objPtr, memberPtr);
}
void setOnDataWritten(void (*callback)(const GattWriteCallbackParams *eventDataP)) {onDataWritten.add(callback);}
/**
* Setup a callback for when an attribute has its value updated by or at the
* connected peer. For a peripheral, this callback triggered when the local
* GATT server has an attribute updated by a write command from the peer.
* For a Central, this callback is triggered when a response is received for
* a write request.
*
* @Note: it is possible to chain together multiple onDataWritten callbacks
* (potentially from different modules of an application) to receive updates
* to characteristics. Many services, such as DFU and UART add their own
* onDataWritten callbacks behind the scenes to trap interesting events.
*
* @Note: it is also possible to setup a callback into a member function of
* some object.
*/
void onDataWritten(void (*callback)(const GattWriteCallbackParams *eventDataP)) {dataWrittenCallChain.add(callback);}
template <typename T>
void setOnDataWritten(T *objPtr, void (T::*memberPtr)(const GattWriteCallbackParams *context)) {
onDataWritten.add(objPtr, memberPtr);
void onDataWritten(T *objPtr, void (T::*memberPtr)(const GattWriteCallbackParams *context)) {
dataWrittenCallChain.add(objPtr, memberPtr);
}
/**
@ -196,8 +211,8 @@ public:
protected:
void handleDataWrittenEvent(const GattWriteCallbackParams *params) {
if (onDataWritten.hasCallbacksAttached()) {
onDataWritten.call(params);
if (dataWrittenCallChain.hasCallbacksAttached()) {
dataWrittenCallChain.call(params);
}
}
@ -240,12 +255,12 @@ protected:
uint8_t characteristicCount;
private:
CallChainOfFunctionPointersWithContext<unsigned> dataSentCallChain;
CallChainOfFunctionPointersWithContext<const GattWriteCallbackParams *> onDataWritten;
CallChainOfFunctionPointersWithContext<unsigned> dataSentCallChain;
CallChainOfFunctionPointersWithContext<const GattWriteCallbackParams *> dataWrittenCallChain;
CallChainOfFunctionPointersWithContext<const GattReadCallbackParams *> onDataRead;
EventCallback_t onUpdatesEnabled;
EventCallback_t onUpdatesDisabled;
EventCallback_t onConfirmationReceived;
EventCallback_t onUpdatesEnabled;
EventCallback_t onUpdatesDisabled;
EventCallback_t onConfirmationReceived;
private:
/* disallow copy and assignment */