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Implemented a more portable version of thread local variables

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This commit is contained in:
Benoit Steiner 2016-04-19 15:56:02 -07:00
parent 04f954956d
commit 2b72163028
3 changed files with 24 additions and 1 deletions
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1
unsupported/Eigen/CXX11/ThreadPool
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@ -47,6 +47,7 @@
#include "src/ThreadPool/EventCount.h"
#include "src/ThreadPool/RunQueue.h"
#include "src/ThreadPool/ThreadLocal.h"
#include "src/ThreadPool/ThreadPoolInterface.h"
#include "src/ThreadPool/ThreadEnvironment.h"
#include "src/ThreadPool/SimpleThreadPool.h"

2
unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
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@ -212,7 +212,7 @@ class NonBlockingThreadPoolTempl : public Eigen::ThreadPoolInterface {
}
PerThread* GetPerThread() {
static thread_local PerThread per_thread_;
EIGEN_THREAD_LOCAL PerThread per_thread_;
PerThread* pt = &per_thread_;
if (pt->inited) return pt;
pt->inited = true;

22
unsupported/Eigen/CXX11/src/ThreadPool/ThreadLocal.h Normal file
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@ -0,0 +1,22 @@
// 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_CXX11_THREADPOOL_THREAD_LOCAL_H
#define EIGEN_CXX11_THREADPOOL_THREAD_LOCAL_H
// Try to come up with a portable implementation of thread local variables
#if EIGEN_COMP_GNUC && EIGEN_GNUC_AT_MOST(4, 7)
#define EIGEN_THREAD_LOCAL static __thread
#elif EIGEN_COMP_CLANG
#define EIGEN_THREAD_LOCAL static __thread
#else
#define EIGEN_THREAD_LOCAL static thread_local
#endif
#endif // EIGEN_CXX11_THREADPOOL_THREAD_LOCAL_H