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comfly/SpinLock.swift

Created April 14, 2016 09:46
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SpinLock.swift
public final class SpinLock {
private var lock: OSSpinLock = OS_SPINLOCK_INIT
public func locked<A>(@noescape f: () throws -> A) rethrows -> A {
OSSpinLockLock(&lock)
defer { OSSpinLockUnlock(&lock) }
return try f()
}
}
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