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1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 
10 #ifndef EIGEN_CXX11_THREADPOOL_THREAD_ENVIRONMENT_H
11 #define EIGEN_CXX11_THREADPOOL_THREAD_ENVIRONMENT_H
12 
13 namespace Eigen {
14 
15 struct StlThreadEnvironment {
16   struct Task {
17     std::function<void()> f;
18   };
19 
20   // EnvThread constructor must start the thread,
21   // destructor must join the thread.
22   class EnvThread {
23    public:
EnvThreadStlThreadEnvironment24     EnvThread(std::function<void()> f) : thr_(std::move(f)) {}
~EnvThreadStlThreadEnvironment25     ~EnvThread() { thr_.join(); }
26 
27    private:
28     std::thread thr_;
29   };
30 
CreateThreadStlThreadEnvironment31   EnvThread* CreateThread(std::function<void()> f) { return new EnvThread(std::move(f)); }
CreateTaskStlThreadEnvironment32   Task CreateTask(std::function<void()> f) { return Task{std::move(f)}; }
ExecuteTaskStlThreadEnvironment33   void ExecuteTask(const Task& t) { t.f(); }
34 };
35 
36 }  // namespace Eigen
37 
38 #endif  // EIGEN_CXX11_THREADPOOL_THREAD_ENVIRONMENT_H
39