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[6.1] Implement LockedState for Musl #1104

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Merged
merged 1 commit into from
Jan 2, 2025
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[6.1] Implement LockedState for Musl #1104

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14 changes: 10 additions & 4 deletions Sources/FoundationEssentials/LockedState.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -46,17 +46,19 @@ package struct LockedState<State> {
fileprivate static func initialize(_ platformLock: PlatformLock) {
#if canImport(os)
platformLock.initialize(to: os_unfair_lock())
#elseif canImport(Bionic) || canImport(Glibc)
#elseif canImport(Bionic) || canImport(Glibc) || canImport(Musl)
pthread_mutex_init(platformLock, nil)
#elseif canImport(WinSDK)
InitializeSRWLock(platformLock)
#elseif os(WASI)
// no-op
#else
#error("LockedState._Lock.initialize is unimplemented on this platform")
#endif
}

fileprivate static func deinitialize(_ platformLock: PlatformLock) {
#if canImport(Bionic) || canImport(Glibc)
#if canImport(Bionic) || canImport(Glibc) || canImport(Musl)
pthread_mutex_destroy(platformLock)
#endif
platformLock.deinitialize(count: 1)
Expand All @@ -65,24 +67,28 @@ package struct LockedState<State> {
static fileprivate func lock(_ platformLock: PlatformLock) {
#if canImport(os)
os_unfair_lock_lock(platformLock)
#elseif canImport(Bionic) || canImport(Glibc)
#elseif canImport(Bionic) || canImport(Glibc) || canImport(Musl)
pthread_mutex_lock(platformLock)
#elseif canImport(WinSDK)
AcquireSRWLockExclusive(platformLock)
#elseif os(WASI)
// no-op
#else
#error("LockedState._Lock.lock is unimplemented on this platform")
#endif
}

static fileprivate func unlock(_ platformLock: PlatformLock) {
#if canImport(os)
os_unfair_lock_unlock(platformLock)
#elseif canImport(Bionic) || canImport(Glibc)
#elseif canImport(Bionic) || canImport(Glibc) || canImport(Musl)
pthread_mutex_unlock(platformLock)
#elseif canImport(WinSDK)
ReleaseSRWLockExclusive(platformLock)
#elseif os(WASI)
// no-op
#else
#error("LockedState._Lock.unlock is unimplemented on this platform")
#endif
}
}
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