0001    //
0002    //  DispatchSemaphore.swift
0003    //  DispatchKit <https://github.com/anpol/DispatchKit>
0004    //
0005    //  Copyright (c) 2014 Andrei Polushin. All rights reserved.
0006    //
0007    
0008    import Foundation
0009    
0010    public struct DispatchSemaphore: DispatchObject, DispatchWaitable {
0011    
0012        @available(*, unavailable, renamed="rawValue")
0013        public var semaphore: dispatch_semaphore_t {
0014            return rawValue
0015        }
0016    
0017        @available(*, unavailable, renamed="DispatchSemaphore(rawValue:)")
0018        public init(raw semaphore: dispatch_semaphore_t) {
0019            self.rawValue = semaphore
0020        }
0021    
0022        public let rawValue
DispatchSemaphore.swift:25
        self.rawValue = rawValue
DispatchSemaphore.swift:35
        self.rawValue = rawValue
DispatchSemaphore.swift:45
        return dispatch_semaphore_wait(rawValue, timeout.rawValue)
DispatchSemaphore.swift:49
        return dispatch_semaphore_signal(rawValue)
: dispatch_semaphore_t
0023    
0024        public init(rawValue: dispatch_semaphore_t) {
0025            self.rawValue = rawValue
0026        }
0027    
0028        public init!(_ value: Int) {
0029            assert(0 <= value)
0030    
0031            guard let rawValue = dispatch_semaphore_create(value) else {
0032                return nil
0033            }
0034    
0035            self.rawValue = rawValue
0036        }
0037    
0038    
0039        public func wait() -> Int {
0040            // default argument is not permitted in protocol method in #swift
0041            return wait(.Forever)
0042        }
0043    
0044        public func wait
DispatchSemaphore.swift:41
        return wait(.Forever)
(timeout: DispatchTime) -> Int {
0045            return dispatch_semaphore_wait(rawValue, timeout.rawValue)
0046        }
0047    
0048        public func signal() -> Int {
0049            return dispatch_semaphore_signal(rawValue)
0050        }
0051    
0052    }
0053