extend
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Diff: source/DiscoveredCharacteristic.cpp
- Revision:
- 929:918d93d409c1
- Parent:
- 728:997ba5e7b3b6
- Child:
- 930:d6883d67fcb3
diff -r 624793511b25 -r 918d93d409c1 source/DiscoveredCharacteristic.cpp --- a/source/DiscoveredCharacteristic.cpp Thu Nov 26 12:52:05 2015 +0000 +++ b/source/DiscoveredCharacteristic.cpp Thu Nov 26 12:52:05 2015 +0000 @@ -31,6 +31,47 @@ return gattc->read(connHandle, valueHandle, offset); } + +struct OneShotReadCallback { + static void launch(GattClient* client, const GattClient::ReadCallback_t& cb) { + OneShotReadCallback* oneShot = new OneShotReadCallback(client, cb); + oneShot->attach(); + // delete will be made when this callback is called + } + +private: + OneShotReadCallback(GattClient* client, const GattClient::ReadCallback_t& cb) : + _client(client), + _callback(cb) { } + + void attach() { + _client->onDataRead(makeFunctionPointer(this, &OneShotReadCallback::call)); + } + + void call(const GattReadCallbackParams* params) { + _callback(params); + _client->onDataRead().detach(makeFunctionPointer(this, &OneShotReadCallback::call)); + delete this; + } + + GattClient* _client; + GattClient::ReadCallback_t _callback; +}; + +ble_error_t DiscoveredCharacteristic::read(uint16_t offset, const GattClient::ReadCallback_t& onRead) const { + ble_error_t error = read(offset); + if(error) { + return error; + } + + OneShotReadCallback::launch(gattc, onRead); + + return error; +} + + + + ble_error_t DiscoveredCharacteristic::write(uint16_t length, const uint8_t *value) const {