| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #pragma once |
| |
| #include <functional> |
| #include <memory> |
| #include <optional> |
| |
| namespace org::apache::nifi::minifi::io { |
| |
| class InputStream; |
| class OutputStream; |
| |
| struct ReadWriteResult { |
| int64_t bytes_written = 0; |
| int64_t bytes_read = 0; |
| }; |
| |
| // FlowFile IO Callback functions for input and output |
| // throw exception for error |
| using InputStreamCallback = std::function<int64_t(const std::shared_ptr<InputStream>& input_stream)>; |
| using OutputStreamCallback = std::function<int64_t(const std::shared_ptr<OutputStream>& output_stream)>; |
| using InputOutputStreamCallback = std::function<std::optional<ReadWriteResult>(const std::shared_ptr<InputStream>& input_stream, const std::shared_ptr<OutputStream>& output_stream)>; |
| |
| } // namespace org::apache::nifi::minifi::io |
