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_POOL_INTERFACE_H 11#define EIGEN_CXX11_THREADPOOL_THREAD_POOL_INTERFACE_H 12 13namespace Eigen { 14 15// This defines an interface that ThreadPoolDevice can take to use 16// custom thread pools underneath. 17class ThreadPoolInterface { 18 public: 19 virtual void Schedule(std::function<void()> fn) = 0; 20 21 // Returns the number of threads in the pool. 22 virtual int NumThreads() const = 0; 23 24 // Returns a logical thread index between 0 and NumThreads() - 1 if called 25 // from one of the threads in the pool. Returns -1 otherwise. 26 virtual int CurrentThreadId() const = 0; 27 28 virtual ~ThreadPoolInterface() {} 29}; 30 31} // namespace Eigen 32 33#endif // EIGEN_CXX11_THREADPOOL_THREAD_POOL_INTERFACE_H 34