C++ UUID::getShortUUID方法代码示例

void BlueNRGGattClient::primaryServicesCB(Gap::Handle_t connectionHandle,
                                          uint8_t event_data_length,
                                          uint8_t attribute_data_length,
                                          uint8_t *attribute_data_list)
{
  GattAttribute::Handle_t startHandle, endHandle;
  UUID uuid;
  uint8_t i, offset, numAttr;
  /* avoid compiler warnings about unused variables */
  (void)connectionHandle;

  numAttr = (event_data_length - 1) / attribute_data_length;

  offset = 0;
  for (i=0; i<numAttr; i++) {
    startHandle = attribute_data_list[offset];
    endHandle = attribute_data_list[offset+2];

    // UUID Type
    if (attribute_data_length == 6) {
      
      PRINTF("UUID_TYPE_16\n\r");
      uuid = attribute_data_list[offset+5]<<8|attribute_data_list[offset+4];
      PRINTF("S UUID-%X attrs[%u %u]\r\n", uuid.getShortUUID(), startHandle, endHandle);
      
    } else {
      
      PRINTF("UUID_TYPE_128\n\r");
      uuid.setupLong(attribute_data_list+offset+4);
      
      PRINTF("S UUID-");
#ifdef DEBUG
      const uint8_t *longUUIDBytes = uuid.getBaseUUID();
      for (unsigned j = 0; j < UUID::LENGTH_OF_LONG_UUID; j++) {
        PRINTF("%02x", longUUIDBytes[j]);
      }
#endif
      PRINTF(" attrs[%u %u]\r\n", startHandle, endHandle);
      
    }
    
    PRINTF("Setup serviceIndex = %d\n\r", _numServices);
    discoveredService[_numServices].setup(uuid, startHandle, endHandle);
    
    if(serviceDiscoveryCallback) {
      if(_matchingServiceUUID == BLE_UUID_UNKNOWN || _matchingServiceUUID == discoveredService[_numServices].getUUID()) {
        serviceDiscoveryCallback(&discoveredService[_numServices]);
      }
    }
    _numServices++;

    offset += attribute_data_length;
  }

  PRINTF("!!!Service Discovery complete (numAttr=%u)!!!\n\r", numAttr);

}

/**
 * The nRF transport has its own 3-byte representation of a UUID. If the user-
 * specified UUID is 128-bits wide, then the UUID base needs to be added to the
 * soft-device and converted to a 3-byte handle before being used further. This
 * function is responsible for this translation of user-specified UUIDs into
 * nRF's representation.
 *
 * @param[in]  uuid
 *                 user-specified UUID
 * @return nRF
 *              3-byte UUID (containing a type and 16-bit UUID) representation
 *              to be used with SVC calls.
 */
ble_uuid_t custom_convert_to_nordic_uuid(const UUID &uuid)
{
    ble_uuid_t nordicUUID;
    nordicUUID.uuid = uuid.getShortUUID();
    nordicUUID.type = BLE_UUID_TYPE_UNKNOWN; /* to be set below */

    if (uuid.shortOrLong() == UUID::UUID_TYPE_SHORT) {
        nordicUUID.type = BLE_UUID_TYPE_BLE;
    } else {
        if (!lookupConvertedUUIDTable(uuid.getBaseUUID(), &nordicUUID.type)) {
            nordicUUID.type = custom_add_uuid_base(uuid.getBaseUUID());
            addToConvertedUUIDTable(uuid.getBaseUUID(), nordicUUID.type);
        }
    }

    return nordicUUID;
}

ble_error_t BlueNRGGattClient::launchServiceDiscovery(Gap::Handle_t                               connectionHandle,
                                                      ServiceDiscovery::ServiceCallback_t         sc,
                                                      ServiceDiscovery::CharacteristicCallback_t  cc,
                                                      const UUID                                 &matchingServiceUUID,
                                                      const UUID                                 &matchingCharacteristicUUIDIn)
{
  PRINTF("launchServiceDiscovery\n\r");
  
  tBleStatus ret;
  uint8_t uuid_type = UUID_TYPE_16;
  uint8_t short_uuid[2];
  uint8_t *uuid = NULL;
  unsigned j;
  
  _connectionHandle = connectionHandle;
  serviceDiscoveryCallback = sc;
  characteristicDiscoveryCallback = cc;
  _matchingServiceUUID = matchingServiceUUID;
  _matchingCharacteristicUUIDIn = matchingCharacteristicUUIDIn;

  //reset services
  _numServices = 0;
  _numChars = 0;
  _servIndex = 0;
  for(j = 0; j < BLE_TOTAL_DISCOVERED_SERVICES; j++) {
    discoveredService[j].setup(BLE_UUID_UNKNOWN, GattAttribute::INVALID_HANDLE, GattAttribute::INVALID_HANDLE);
  }
  
  if(matchingServiceUUID == BLE_UUID_UNKNOWN) {
    
    // Wildcard: search for all services
    ret = aci_gatt_disc_all_prim_services((uint16_t)connectionHandle);
    
  } else {
  
    uint8_t type = matchingServiceUUID.shortOrLong();
    //PRINTF("AddService(): Type:%d\n\r", type);
    
    if(type == UUID::UUID_TYPE_SHORT) {
      STORE_LE_16(short_uuid, matchingServiceUUID.getShortUUID());
      
      PRINTF("launchServiceDiscovery short_uuid=0x");
      for(j = 0; j < 2; j++) {
        PRINTF("%02X", short_uuid[j]);
      }
      PRINTF("\n\r");
      
      
      uuid_type = UUID_TYPE_16;
      uuid = short_uuid;
      
    } else if(type==UUID::UUID_TYPE_LONG) {

      uuid_type = UUID_TYPE_128;
      uuid = (unsigned char*)matchingServiceUUID.getBaseUUID();
      
      /*
      PRINTF("launchServiceDiscovery base_uuid=0x");
      for(j = 0; j < 16; j++) {
        PRINTF("%02X", uuid[j]);
      }
      PRINTF("\n\r");
      */
    }
    
    // search for specific service by UUID
    ret = aci_gatt_disc_prim_service_by_uuid((uint16_t)connectionHandle, uuid_type, uuid);
    //ret = aci_gatt_disc_all_prim_services((uint16_t)connectionHandle);
  }
    
  if(ret == BLE_STATUS_SUCCESS) {
    _currentState = GATT_SERVICE_DISCOVERY;
  }
  
  PRINTF("launchServiceDiscovery ret=%d\n\r", ret);
  
  return BLE_ERROR_NONE;
}

void BlueNRGGattClient::serviceCharByUUIDCB(Gap::Handle_t connectionHandle,
                                            uint8_t event_data_length,
                                            uint16_t attr_handle,
                                            uint8_t *attr_value)
{
  // Charac Properties(1), Charac Value Handle(2), Charac UUID(2/16)
  GattAttribute::Handle_t declHandle, valueHandle;
  UUID uuid;
  
  PRINTF("serviceCharByUUIDCB\n\r");
  
  // UUID Type
  if (event_data_length == 7) {
    PRINTF("Char UUID_TYPE_16\n\r");
    uuid = attr_value[4]<<8|attr_value[3];
    PRINTF("C UUID-%X\r\n", uuid.getShortUUID());
  } else {
    PRINTF("Char UUID_TYPE_128\n\r");
    uuid.setupLong(attr_value+3);
    PRINTF("C UUID-");
#ifdef DEBUG
    const uint8_t *longUUIDBytes = uuid.getBaseUUID();
    for (unsigned i = 0; i < UUID::LENGTH_OF_LONG_UUID; i++) {
      PRINTF("%02X", longUUIDBytes[i]);
    }
    PRINTF("\r\n");
#endif
  }

  // Properties
  DiscoveredCharacteristic::Properties_t p;
  
  p._broadcast = (props_mask[0] & attr_value[0]);
  p._read = (props_mask[1] & attr_value[0])>>1;
  p._writeWoResp = (props_mask[2] & attr_value[0])>>2;
  p._write = (props_mask[3] & attr_value[0])>>3;
  p._notify = (props_mask[4] & attr_value[0])>>4;
  p._indicate = (props_mask[5] & attr_value[0])>>5;
  p._authSignedWrite = (props_mask[6] & attr_value[0])>>6;
  PRINTF("p._broadcast=%d\n\r", p._broadcast);
  PRINTF("p._read=%d\n\r", p._read);
  PRINTF("p._writeWoResp=%d\n\r", p._writeWoResp);
  PRINTF("p._write=%d\n\r", p._write);
  PRINTF("p._notify=%d\n\r", p._notify);
  PRINTF("p._indicate=%d\n\r", p._indicate);
  PRINTF("p._authSignedWrite=%d\n\r", p._authSignedWrite);

  /*
  uint8_t props = attr_value[0];
  PRINTF("CHAR PROPS: %d\n\r", props);
  */

  // Handles
  declHandle = attr_handle;
  valueHandle = attr_value[1];

  discoveredChar[_numChars].setup(this,
                                  connectionHandle,
                                  uuid,
                                  p,
                                  declHandle,
                                  valueHandle);
  
  if(characteristicDiscoveryCallback) {
    characteristicDiscoveryCallback(&discoveredChar[_numChars]);
  }
  _numChars++;
}