[libc-commits] [libc] [libc] C11 threads: Add cnd_timedwait and mtx_trylock. (PR #195966)

[Schrodinger ZHU Yifan via libc-commits]

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@@ -31,6 +31,11 @@ LIBC_INLINE void ensure_monotonicity(AbsTimeout &timeout) {
         convert_clock(timeout.get_timespec(), CLOCK_REALTIME, CLOCK_MONOTONIC),
         false);
 
+    // Clamp the timeout to epoch if becomes negative after the conversion.
+    if (!res.has_value() && res.error() == AbsTimeout::Error::BeforeEpoch) {
+      res = AbsTimeout::from_timespec(timespec{0, 0}, false);
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SchrodingerZhu wrote:

Good catch. Elide the braces?

https://github.com/llvm/llvm-project/pull/195966