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[FreeBSD]: Optional observation pthread primitives #81366

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May 22, 2025
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[FreeBSD]: Optional observation pthread primitives #81366

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8 changes: 8 additions & 0 deletions stdlib/public/Observation/Sources/Observation/Locking.swift
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Expand Up @@ -34,7 +34,15 @@ internal struct Lock {
#if canImport(Darwin)
typealias Primitive = os_unfair_lock
#elseif canImport(Glibc) || canImport(Musl) || canImport(Bionic)
#if os(FreeBSD) || os(OpenBSD)
// BSD libc does not annotate the nullability of pthread APIs.
// We should replace this with the appropriate API note in the platform
// overlay.
// https://github.com/swiftlang/swift/issues/81407
typealias Primitive = pthread_mutex_t?
#else
typealias Primitive = pthread_mutex_t
#endif
#elseif canImport(WinSDK)
typealias Primitive = SRWLOCK
#elseif arch(wasm32)
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