| #ifndef PROTON_FUNCTION_HPP |
| #define PROTON_FUNCTION_HPP |
| |
| /* |
| * 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. |
| */ |
| |
| /// @file |
| /// **Deprecated** - Use the API in `work_queue.hpp`. |
| |
| /// @cond INTERNAL |
| |
| namespace proton { |
| |
| /// **Deprecated** - Use `proton::work`. |
| /// |
| /// A C++03-compatible void no-argument callback function object. |
| /// |
| /// Used by `container::schedule()` and `work_queue::add()`. In C++11 |
| /// you can use `std::bind`, `std::function`, or a void-no-argument |
| /// lambda instead. |
| /// |
| /// `void_function0` is passed by reference, so instances of |
| /// subclasses do not have to be heap allocated. Once passed, the |
| /// instance must not be deleted until its `operator()` is called or |
| /// the container has stopped. |
| class void_function0 { |
| public: |
| virtual ~void_function0() {} |
| /// Override the call operator with your code. |
| virtual void operator()() = 0; |
| }; |
| |
| } // proton |
| |
| /// @endcond |
| |
| #endif // PROTON_FUNCTION_HPP |