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Code Issues 95 Packages Projects Releases 10 Wiki Activity

Remove references to OSAtomic to silence deprecation warnings

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This commit is contained in:
John Estropia
2019-10-22 11:48:09 +09:00
parent 1ddce5aa8d
commit 3d8bdf1cf3
1 changed files with 40 additions and 14 deletions
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54
Sources/Internals.DiffableDataUIDispatcher.swift
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@@ -184,24 +184,15 @@ extension Internals {
// MARK: FilePrivate
fileprivate init() {
self.executingCount.initialize(to: 0)
}
deinit {
self.executingCount.deinitialize(count: 1)
self.executingCount.deallocate()
}
fileprivate init() {}
fileprivate func dispatch(_ action: @escaping () -> Void) {
let count = OSAtomicIncrement32(self.executingCount)
let count = self.executingCount.incrementAndGet()
if Thread.isMainThread && count == 1 {
action()
OSAtomicDecrement32(executingCount)
self.executingCount.decrement()
}
else {
@@ -212,7 +203,7 @@ extension Internals {
return
}
action()
OSAtomicDecrement32(self.executingCount)
self.executingCount.decrement()
}
}
}
@@ -220,7 +211,42 @@ extension Internals {
// MARK: Private
private let executingCount: UnsafeMutablePointer<Int32> = .allocate(capacity: 1)
private let executingCount: AtomicInt = .init()
// MARK: - AtomicInt
fileprivate class AtomicInt {
// MARK: FilePrivate
fileprivate func incrementAndGet() -> Int {
self.lock.wait()
defer {
self.lock.signal()
}
self.value += 1
return self.value
}
fileprivate func decrement() {
self.lock.wait()
defer {
self.lock.signal()
}
self.value -= 1
}
// MARK: Private
private let lock = DispatchSemaphore(value: 1)
private var value = 0
}
}
}