Add read raw data from remote characteristic

chegewara · chegewara · commit 1012efc4e658 · 2018-07-10T18:41:53.000+02:00
diff --git a/cpp_utils/BLERemoteCharacteristic.cpp b/cpp_utils/BLERemoteCharacteristic.cpp
@@ -204,6 +204,11 @@ void BLERemoteCharacteristic::gattClientEventHandler(
 			// and unlock the semaphore to ensure that the requestor of the data can continue.
 			if (evtParam->read.status == ESP_GATT_OK) {
 				m_value = std::string((char*)evtParam->read.value, evtParam->read.value_len);
+				if(m_rawData != nullptr)
+					free(m_rawData);
+				
+				m_rawData = calloc(evtParam->read.value_len, sizeof(uint8_t));
+				memcpy(m_rawData, evtParam->read.value, evtParam->read.value_len);
 			} else {
 				m_value = "";
 			}
@@ -613,4 +618,12 @@ void BLERemoteCharacteristic::writeValue(uint8_t* data, size_t length, bool resp
 	writeValue(std::string((char *)data, length), response);
 } // writeValue
 
+/**
+ * @brief Read raw data from remote characteristic as hex bytes 
+ * @return return pointer data read
+ */
+uint8_t* BLERemoteCharacteristic::readRawData() {
+	return m_rawData;
+}
+
 #endif /* CONFIG_BT_ENABLED */
diff --git a/cpp_utils/BLERemoteCharacteristic.h b/cpp_utils/BLERemoteCharacteristic.h
@@ -49,6 +49,7 @@ class BLERemoteCharacteristic {
 	void        writeValue(std::string newValue, bool response = false);
 	void        writeValue(uint8_t newValue, bool response = false);
 	std::string toString(void);
+	uint8_t*	readRawData();
 
 private:
 	BLERemoteCharacteristic(uint16_t handle, BLEUUID uuid, esp_gatt_char_prop_t charProp, BLERemoteService* pRemoteService);
@@ -76,6 +77,7 @@ class BLERemoteCharacteristic {
 	FreeRTOS::Semaphore  m_semaphoreRegForNotifyEvt  = FreeRTOS::Semaphore("RegForNotifyEvt");
 	FreeRTOS::Semaphore  m_semaphoreWriteCharEvt     = FreeRTOS::Semaphore("WriteCharEvt");
 	std::string          m_value;
+	uint8_t 			 *m_rawData;
   void (*m_notifyCallback)(BLERemoteCharacteristic* pBLERemoteCharacteristic, uint8_t* pData, size_t length, bool isNotify);
 
 	// We maintain a map of descriptors owned by this characteristic keyed by a string representation of the UUID.
