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[Threading][UnitTests] Don't use threads in the unit test in no-threads mode. #59403

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[Threading][UnitTests] Don't use threads in the unit test in no-threads mode. #59403

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33 changes: 33 additions & 0 deletions unittests/Threading/ThreadingHelpers.h
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,37 @@
#ifndef THREADING_HELPERS_H
#define THREADING_HELPERS_H

#if SWIFT_THREADING_NONE

template <typename ThreadBody, typename AfterSpinRelease>
void threadedExecute(int threadCount, ThreadBody threadBody,
AfterSpinRelease afterSpinRelease) {
for (int i = 0; i < threadCount; ++i) {
threadBody(i);
}
}

template <typename ThreadBody>
void threadedExecute(int threadCount, ThreadBody threadBody) {
threadedExecute(threadCount, threadBody, [] {});
}

template <typename M, typename C, typename ConsumerBody, typename ProducerBody>
void threadedExecute(M &mutex, C &condition, bool &doneCondition,
ConsumerBody consumerBody, ProducerBody producerBody) {
for (int i = 1; i <= 5; ++i) {
producerBody(i);
}
mutex.withLockThenNotifyAll(condition, [&] {
doneCondition = true;
});
for (int i = 1; i <= 8; ++i) {
consumerBody(i);
}
}

#else // !SWIFT_THREADING_NONE

#include <thread>

// When true many of the threaded tests log activity to help triage issues.
Expand Down Expand Up @@ -131,4 +162,6 @@ void threadedExecute(M &mutex, C &condition, bool &doneCondition,
}
}

#endif // !SWIFT_THREADING_NONE

#endif