68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
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// Copyright 2009-2020 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "../sys/platform.h"
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#include "../sys/alloc.h"
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#include "../sys/barrier.h"
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#include "../sys/thread.h"
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#include "../sys/mutex.h"
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#include "../sys/condition.h"
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#include "../sys/ref.h"
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#if defined(__WIN32__)
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# define NOMINMAX
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#endif
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// We need to define these to avoid implicit linkage against
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// tbb_debug.lib under Windows. When removing these lines debug build
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// under Windows fails.
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#define __TBB_NO_IMPLICIT_LINKAGE 1
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#define __TBBMALLOC_NO_IMPLICIT_LINKAGE 1
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#define TBB_SUPPRESS_DEPRECATED_MESSAGES 1
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#define TBB_PREVIEW_ISOLATED_TASK_GROUP 1
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#include "tbb/tbb.h"
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#include "tbb/parallel_sort.h"
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namespace embree
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{
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struct TaskScheduler
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{
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/*! initializes the task scheduler */
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static void create(size_t numThreads, bool set_affinity, bool start_threads);
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/*! destroys the task scheduler again */
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static void destroy();
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/* returns the ID of the current thread */
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static __forceinline size_t threadID()
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{
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return threadIndex();
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}
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/* returns the index (0..threadCount-1) of the current thread */
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static __forceinline size_t threadIndex()
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{
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#if TBB_INTERFACE_VERSION >= 9100
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return tbb::this_task_arena::current_thread_index();
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#elif TBB_INTERFACE_VERSION >= 9000
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return tbb::task_arena::current_thread_index();
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#else
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return 0;
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#endif
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}
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/* returns the total number of threads */
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static __forceinline size_t threadCount() {
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#if TBB_INTERFACE_VERSION >= 9100
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return tbb::this_task_arena::max_concurrency();
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#else
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return tbb::task_scheduler_init::default_num_threads();
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#endif
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}
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};
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};
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