pingcdn

[jadenben01]

var cdnPing=function(i,a){if(!i||!Array.isArray(i)||i.length<=0)console.log("cdns is empty");else for(var l=0,r=!1,t=0;t<i.length;t++)!function(){var n=i[t],e=n+"/"+"cdn/A03PF/externals/img",o=new Image;o.onload=function(){r||(r=!0,a(e))},o.onerror=function(){-1!=o.src.indexOf("cdn_test_50k.jpg")&&(o.failed||l++,o.failed=!0,l==i.length&&console.error("all domian ping failed"))},o.src=e+"/cdn_test_50k.jpg?v="+Math.ceil(Math.random()*Math.pow(10,10)),setTimeout(function(){o.complete&&o.naturalWidth||(o.failed||l++,o.failed=!0,console.log(n+"...img load timeout"),l==i.length&&console.error("all domian ping failed"))},1e3)}()},cdns=yunweiConfig.cdns;cdnPing(cdns,function(n){yunweiConfig.imageServer=n,console.log("change imageServer to "+n)});