Function update_attribute

nanofi/src/api/nanofi.cpp:386–391

* Updates (or adds) an attribute * @param ff flow file record * @param key key * @param value value to add * @param size size of value */

 * @param size size of value
 */
void update_attribute(flow_file_record *ff, const char *key, void *value, size_t size) {
  NULL_CHECK(, ff, key);
  NULL_CHECK(, ff->attributes);
  auto attribute_map = static_cast<AttributeMap*>(ff->attributes);
  (*attribute_map)[key] = std::string(static_cast<char*>(value), size);
}

/*
 * Obtains the attribute.