如何操纵chrome tcp响应

Question

我正在编写TCP客户端。对于小型响应包，它运作良好。当响应在不同的包上时（chrome.sockets.tcp.onReceive.addListener多次调用），我遇到了问题。它们有时以正确的顺序到达，有时变量“索引”没有意义。你如何在javascript中处理它？<​​/ p>

var index = 0, 
    effectiveSize = 0, 
    expectedLength = 0, 
    buf = [];

chrome.sockets.tcp.send(socketId, data, function(sendInfo) {});
chrome.sockets.tcp.onReceive.addListener(function(info) {
    effectiveSize += info.data.byteLength;

    if (index === 0) {
        offset = 0;
        readBuffer(info.data, 4); // header
        expectedLength = readBuffer(info.data, 4);
    }

    console.log('index: ' + index + ' expectedLength: ' + expectedLength + ' effectiveSize: ' + effectiveSize);
    index++;
}