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baldurk
d8294d8a88
* Most functions - including pthreads, malloc, free, etc are not safe to use in signal handlers. So we use a simple spin-lock and manual linked-list to manage our list of PIDs to wait on.
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2017-2018 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* 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 in
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* 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 OR
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* 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 THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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#include "common/threading.h"
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#include "os/os_specific.h"
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#if ENABLED(ENABLE_UNIT_TESTS)
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#include "3rdparty/catch/catch.hpp"
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static int value = 0;
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TEST_CASE("Test spin lock", "[threading]")
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{
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int finalValue = 0;
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std::vector<Threading::ThreadHandle> threads;
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std::vector<int> threadcount;
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threads.resize(8);
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threadcount.resize(8);
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Threading::SpinLock lock;
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for(int i = 0; i < 8; i++)
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{
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threadcount[i] = (rand() & 0xff) << 4;
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finalValue += threadcount[i];
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}
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for(int i = 0; i < 8; i++)
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{
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threads[i] = Threading::CreateThread([&lock, &threadcount, i]() {
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for(int c = 0; c < threadcount[i]; c++)
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{
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lock.Lock();
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value++;
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lock.Unlock();
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}
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});
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}
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for(Threading::ThreadHandle t : threads)
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{
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Threading::JoinThread(t);
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Threading::CloseThread(t);
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}
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CHECK(finalValue == value);
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}
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#endif // ENABLED(ENABLE_UNIT_TESTS)
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