forked from bartvdbraak/blender
b62faa54de
Currently for windows only, this is an initial commit towards native support of NUMA. Current commit makes it so Cycles will use all logical processors on Windows running on system with more than 64 threads. Reviewers: juicyfruit, dingto, lukasstockner97, maiself, brecht Subscribers: LazyDodo Differential Revision: https://developer.blender.org/D2049
113 lines
2.4 KiB
C++
113 lines
2.4 KiB
C++
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __UTIL_THREAD_H__
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#define __UTIL_THREAD_H__
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#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
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# include <thread>
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# include <mutex>
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# include <condition_variable>
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# include <functional>
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#else
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# include <boost/thread.hpp>
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#endif
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#include <pthread.h>
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#include <queue>
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#ifdef __APPLE__
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# include <libkern/OSAtomic.h>
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#endif
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#include "util_function.h"
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CCL_NAMESPACE_BEGIN
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#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
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typedef std::mutex thread_mutex;
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typedef std::unique_lock<std::mutex> thread_scoped_lock;
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typedef std::condition_variable thread_condition_variable;
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#else
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/* use boost for mutexes */
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typedef boost::mutex thread_mutex;
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typedef boost::mutex::scoped_lock thread_scoped_lock;
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typedef boost::condition_variable thread_condition_variable;
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#endif
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/* own pthread based implementation, to avoid boost version conflicts with
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* dynamically loaded blender plugins */
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class thread {
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public:
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thread(function<void(void)> run_cb, int group = -1);
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~thread();
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static void *run(void *arg);
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bool join();
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protected:
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function<void(void)> run_cb_;
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pthread_t pthread_id_;
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bool joined_;
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int group_;
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};
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/* Own wrapper around pthread's spin lock to make it's use easier. */
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class thread_spin_lock {
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public:
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#ifdef __APPLE__
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inline thread_spin_lock() {
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spin_ = OS_SPINLOCK_INIT;
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}
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inline void lock() {
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OSSpinLockLock(&spin_);
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}
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inline void unlock() {
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OSSpinLockUnlock(&spin_);
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}
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#else /* __APPLE__ */
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inline thread_spin_lock() {
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pthread_spin_init(&spin_, 0);
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}
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inline ~thread_spin_lock() {
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pthread_spin_destroy(&spin_);
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}
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inline void lock() {
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pthread_spin_lock(&spin_);
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}
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inline void unlock() {
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pthread_spin_unlock(&spin_);
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}
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#endif /* __APPLE__ */
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protected:
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#ifdef __APPLE__
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OSSpinLock spin_;
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#else
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pthread_spinlock_t spin_;
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#endif
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};
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CCL_NAMESPACE_END
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#endif /* __UTIL_THREAD_H__ */
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