[libc-commits] [libc] [libc] End a semaphore wait with EINTR when a signal handler runs (PR #236969)

[Mike Lothian via libc-commits]

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@@ -45,7 +50,8 @@ class Futex : public cpp::Atomic<FutexWordType> {
   }
   LIBC_INLINE ErrorOr<int> wait(FutexWordType expected,
                                 cpp::optional<Timeout> timeout = cpp::nullopt,
-                                bool is_shared = false) {
+                                bool is_shared = false,
+                                bool restart_on_signal = true) {
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FireBurn wrote:

I added FutexSigAction { Restart, Exit } for the new argument. I left is_shared as a bool for now, since FutexScope would change about ten callers in raw_mutex, raw_rwlock, CndVar, thread and the tests, none of which this PR touches. Happy to do that as a follow-up PR if you want it

https://github.com/llvm/llvm-project/pull/236969