//
//  GCDUtil.swift
//  HCQuanfangtong
//
//  Created by Apple on 2021/12/29.
//  Copyright © 2021 Jyp. All rights reserved.
//

import Foundation

//MARK: 延迟执行
public func DELAY(_ delay: Double, closure: @escaping () -> Void) {
    DispatchQueue.main.asyncAfter(deadline: .now() + delay) {
        closure()
    }
}

//MARK: 主线程执行方法
public func MAIN(_ closure: @escaping ()->Void){
    DispatchQueue.main.async {
        closure()
    }
}

//MARK: 后台线程执行方法
public func BACK(_ closure: @escaping ()->Void){
    DispatchQueue.global().async {
        closure()
    }
}


//MARK: 定时器
/// 定时器
/// - Parameters:
///   - repeating: .never 为不重复
///   - closure: 执行方法
/// - Returns: <#description#>
public func TIMER(_ repeating: DispatchTimeInterval, closure: @escaping ()->Void) -> DispatchSourceTimer{
    let timer = DispatchSource.makeTimerSource(flags: [], queue: DispatchQueue.global())
    timer.schedule(deadline: .now(), repeating: repeating)
    timer.setEventHandler(handler: closure)
    timer.resume()
    return timer
}


extension DispatchQueue{
    func barrier_async(_ closure: @escaping ()->Void){
        async(group: nil, qos: .background, flags: .barrier, execute: closure)
    }
    
    /// 创建一个并行后台线程队列
    /// - Parameter serialName: 队列名称
    /// - Returns: <#description#>
    static func createConcurrentQueue(_ serialName: String?) -> DispatchQueue{
        return DispatchQueue(label: serialName ?? "", qos: DispatchQoS.init(qosClass: .background, relativePriority: 0), attributes: DispatchQueue.Attributes.concurrent)
    }
}