sp=(x,y)=>Packages.java.util.concurrent.locks.LockSupport.parkNanos(x,y);

const startTime3=new Date().getTime();
let bin = book.durChapterIndex;
let cin = chapter.index;
let inn = cin - bin;
var sinfo = source.getLoginInfoMap();
var tsms = true;
let dn = false;

let sleep = Packages.java.lang.Thread.sleep;
if ((inn==-4||inn==4)&&!dn) {java.longToast('\n使用下载需要在书源登录界面开启功能\n建议预下载设定不要大于3');}

let tim = Math.floor(Math.random()*2001);
//0-2秒

let ii = 1;

function delayl(){
let dtm=Date.now()+(3000+tim)*10; //30-50秒
sp(this,200*1e6);
	while (!dn) {
    //    ii=0;return;
	let innx = cin - book.durChapterIndex;
	if (innx==0) return;
	else if (innx==-1&&Date.now()<dtm) continue;
	else {ii=0;return;}
		}
}

switch(inn) {
	case 0: break;
	case 1: sp(this,50*1e6); break;
	case 2: sp(this,100*1e6); break;
	case 3: sp(this,150*1e6); break;
	case -1: delayl(); break;
	default: dn ? sp(this,200*1e6) : ii=0; break;
}