31 lines
535 B
Swift
31 lines
535 B
Swift
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import Foundation
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@propertyWrapper
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struct Atomic<Value> {
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private var value: Value
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private let lock = NSLock()
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init(wrappedValue value: Value) {
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self.value = value
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}
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var wrappedValue: Value {
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get { return load() }
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set { store(newValue: newValue) }
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}
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func load() -> Value {
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lock.lock()
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defer { lock.unlock() }
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return value
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}
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mutating func store(newValue: Value) {
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lock.lock()
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defer { lock.unlock() }
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value = newValue
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}
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}
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