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Avoid double-checked locking with TSAN in parallel

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Omit the first check of the double-checked locking pattern in
recordException() in parallel.cpp when CV_THREAD_SANITIZER is defined.
This should only slow recordException() down when the thread sanitizer
is used, and avoids the TSAN data race warning.
This commit is contained in:
Yannis Guyon 2023-01-27 13:02:46 +01:00
parent 4009bca59a
commit bf29a4d746
1 changed files with 2 additions and 0 deletions
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modules/core/src/parallel.cpp
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@ -263,7 +263,9 @@ namespace {
void recordException(const cv::String& msg) void recordException(const cv::String& msg)
#endif #endif
{ {
#ifndef CV_THREAD_SANITIZER
if (!hasException) if (!hasException)
#endif
{ {
cv::AutoLock lock(cv::getInitializationMutex()); cv::AutoLock lock(cv::getInitializationMutex());
if (!hasException) if (!hasException)