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clean up CrossPlatformLock #119

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Merged
aelam merged 1 commit into from
Sep 17, 2025
Merged

clean up CrossPlatformLock #119

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30 changes: 17 additions & 13 deletions Sources/Support/CrossPlatformLock.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -5,34 +5,38 @@
//

import Foundation
#if canImport(os)
#if canImport(os) && os(macOS)
import os
#endif

/// A cross-platform thread-safe lock wrapper
public final class CrossPlatformLock<State: Sendable>: @unchecked Sendable {
#if canImport(os) && os(macOS)
private let lock: OSAllocatedUnfairLock<State>
#else

public init(initialState: State) {
self.lock = OSAllocatedUnfairLock(initialState: initialState)
}

public func withLock<T: Sendable>(_ operation: @Sendable (inout State) -> T) -> T {
lock.withLock(operation)
}
}

#else

/// A cross-platform thread-safe lock wrapper
public final class CrossPlatformLock<State: Sendable>: @unchecked Sendable {
private let nsLock = NSLock()
private var state: State
#endif

public init(initialState: State) {
#if canImport(os) && os(macOS)
self.lock = OSAllocatedUnfairLock(initialState: initialState)
#else
self.state = initialState
#endif
}

public func withLock<T: Sendable>(_ operation: @Sendable (inout State) -> T) -> T {
#if canImport(os) && os(macOS)
return lock.withLock(operation)
#else
nsLock.lock()
defer { nsLock.unlock() }
return operation(&state)
#endif
}
}

#endif