50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
/*
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* Copyright (c) 2017, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "runtime/helpers/wddm_helper.h"
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#include "gtest/gtest.h"
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#include <thread>
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TEST(MtTestWddmFixture, givenCurrentPagingFenceValueWhenValueChangedThenValueIsSet) {
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std::atomic<uint64_t> currentPagingFenceValue;
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std::atomic<int> testCount;
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std::atomic<int> maxValue;
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currentPagingFenceValue.store(0);
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testCount.store(100);
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maxValue.store(0);
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int threadsCount = 8;
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std::thread threads[8];
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for (int i = 0; i < threadsCount; i++) {
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threads[i] = std::thread([&]() {
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while (testCount-- > 0) {
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uint64_t newVal = ++maxValue;
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interlockedMax(currentPagingFenceValue, newVal);
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}
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});
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}
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for (int i = 0; i < threadsCount; i++) {
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threads[i].join();
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}
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uint64_t endValue = currentPagingFenceValue.load();
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EXPECT_EQ(endValue, 100u);
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} |