Files
CoreStore/Sources/DispatchQueue+CoreStore.swift
2019-01-31 16:50:43 +09:00

98 lines
3.1 KiB
Swift

//
// DispatchQueue+CoreStore.swift
// CoreStore
//
// Copyright © 2018 John Rommel Estropia
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
import Foundation
// MARK: - DispatchQueue
extension DispatchQueue {
@nonobjc @inline(__always)
internal static func serial(_ label: String, qos: DispatchQoS = .default) -> DispatchQueue {
return DispatchQueue(
label: label,
qos: qos,
attributes: [],
autoreleaseFrequency: .inherit,
target: nil
)
}
@nonobjc @inline(__always)
internal static func concurrent(_ label: String, qos: DispatchQoS = .default) -> DispatchQueue {
return DispatchQueue(
label: label,
qos: qos,
attributes: .concurrent,
autoreleaseFrequency: .inherit,
target: nil
)
}
@nonobjc
internal func cs_isCurrentExecutionContext() -> Bool {
enum Static {
static let specificKey = DispatchSpecificKey<ObjectIdentifier>()
}
let specific = ObjectIdentifier(self)
self.setSpecific(key: Static.specificKey, value: specific)
return DispatchQueue.getSpecific(key: Static.specificKey) == specific
}
@nonobjc @inline(__always)
internal func cs_sync<T>(_ closure: () throws -> T) rethrows -> T {
return try self.sync { try autoreleasepool(invoking: closure) }
}
@nonobjc @inline(__always)
internal func cs_async(_ closure: @escaping () -> Void) {
self.async { autoreleasepool(invoking: closure) }
}
@nonobjc @inline(__always)
internal func cs_barrierSync<T>(_ closure: () throws -> T) rethrows -> T {
return try self.sync(flags: .barrier) { try autoreleasepool(invoking: closure) }
}
@nonobjc @inline(__always)
internal func cs_barrierAsync(_ closure: @escaping () -> Void) {
self.async(flags: .barrier) { autoreleasepool(invoking: closure) }
}
// MARK: Private
}