Define RCPPUTILS_TSA_TRY_ACQUIRE_SHARED

Define Documentation

RCPPUTILS_TSA_TRY_ACQUIRE_SHARED(...)

Attempts to RCPPUTILS_TSA_ACQUIRE_SHARED, but its return value will indicate whether it succeeded or failed.

https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#try-acquire-bool-try-acquire-shared-bool