Eigen/ThreadPool

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2016 Benoit Steiner <benoit.steiner.goog@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

#ifndef EIGEN_THREADPOOL_MODULE_H
#define EIGEN_THREADPOOL_MODULE_H

#include "Core"

#include "src/Core/util/DisableStupidWarnings.h"

/** \defgroup ThreadPool_Module ThreadPool Module
 *
 * This module provides 2 threadpool implementations
 *  - a simple reference implementation
 *  - a faster non blocking implementation
 *
 * \code
 * #include <Eigen/ThreadPool>
 * \endcode
 */

#include <cstddef>
#include <cstring>
#include <time.h>

#include <vector>
#include <atomic>
#include <condition_variable>
#include <deque>
#include <mutex>
#include <thread>
#include <functional>
#include <memory>
#include <utility>

// There are non-parenthesized calls to "max" in the  <unordered_map> header,
// which trigger a check in test/main.h causing compilation to fail.
// We work around the check here by removing the check for max in
// the case where we have to emulate thread_local.
#ifdef max
#undef max
#endif
#include <unordered_map>

#include "src/Core/util/Meta.h"
#include "src/Core/util/MaxSizeVector.h"

#ifdef EIGEN_USE_CUSTOM_THREAD_POOL
#ifndef EIGEN_MUTEX
#define EIGEN_MUTEX std::mutex
#endif
#ifndef EIGEN_MUTEX_LOCK
#define EIGEN_MUTEX_LOCK std::unique_lock<std::mutex>
#endif
#ifndef EIGEN_CONDVAR
#define EIGEN_CONDVAR std::condition_variable
#endif
#else
  // Use tensorflow synchronization primitives.
  #if !defined(EIGEN_MUTEX) || !defined(EIGEN_MUTEX_LOCK) || !defined(EIGEN_CONDVAR)
    #include "third_party/tensorflow/tsl/platform/types.h"
    #include "third_party/tensorflow/tsl/platform/mutex.h"
  #endif
  #ifndef EIGEN_MUTEX
    #define EIGEN_MUTEX ::tsl::mutex
  #endif
  #ifndef EIGEN_MUTEX_LOCK
    #define EIGEN_MUTEX_LOCK ::tsl::mutex_lock
  #endif
  #ifndef EIGEN_CONDVAR
    #define EIGEN_CONDVAR ::tsl::condition_variable
  #endif
#endif


// IWYU pragma: begin_exports
#include "src/ThreadPool/ThreadLocal.h"
#include "src/ThreadPool/ThreadYield.h"
#include "src/ThreadPool/ThreadCancel.h"
#include "src/ThreadPool/EventCount.h"
#include "src/ThreadPool/RunQueue.h"
#include "src/ThreadPool/ThreadPoolInterface.h"
#include "src/ThreadPool/ThreadEnvironment.h"
#include "src/ThreadPool/Barrier.h"
#include "src/ThreadPool/NonBlockingThreadPool.h"
// IWYU pragma: end_exports

#include "src/Core/util/ReenableStupidWarnings.h"

#endif  // EIGEN_CXX11_THREADPOOL_MODULE_H