| // Licensed 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 |
| |
| #ifndef __EVENT_LOOP_HPP__ |
| #define __EVENT_LOOP_HPP__ |
| |
| #include <stout/duration.hpp> |
| #include <stout/lambda.hpp> |
| |
| namespace process { |
| |
| // The interface that must be implemented by an event management |
| // system. This is a class to cleanly isolate the interface and so |
| // that in the future we can support multiple implementations. |
| class EventLoop |
| { |
| public: |
| // Initializes the event loop. |
| static void initialize(); |
| |
| // Invoke the specified function in the event loop after the |
| // specified duration. |
| // TODO(bmahler): Update this to use rvalue references. |
| static void delay( |
| const Duration& duration, |
| const lambda::function<void()>& function); |
| |
| // Returns the current time w.r.t. the event loop. |
| static double time(); |
| |
| // Runs the event loop. |
| static void run(); |
| |
| // Asynchronously tells the event loop to stop and then returns. |
| static void stop(); |
| }; |
| |
| } // namespace process { |
| |
| #endif // __EVENT_LOOP_HPP__ |