小编Ter*_*rry的帖子

我试着守护一些代码,但是我遇到了麻烦.

如果我用tklogger()调用代码,它运行得很好.但是,如果我在守护进程上下文中调用它,我会得到以下跟踪:

Traceback (most recent call last):
  File "./tklogger.py", line 103, in <module>
    tklogger()
  File "./tklogger.py", line 41, in tklogger
    conn, addr = s.accept()
  File "/usr/lib/python2.6/socket.py", line 195, in accept
    sock, addr = self._sock.accept()
socket.error: [Errno 9] Bad file descriptor
close failed in file object destructor:
IOError: [Errno 9] Bad file descriptor

我的代码如下:

#!/usr/bin/python

# tklogger, a TK10X GPS tracking device logger

import socket
import time
import daemon

HOST = ''                       # Bind to all interfaces
PORT = 9000                     # …

我在JS中遇到了一些问题,我刚刚接受了.

我已经定义了一个对象,并在其中进行.getJSON()调用,但我似乎无法正确引用调用对象的属性:

// Vehicle object
function vehicle(id) {
    this.id = id;
    var that = this;
    // Fetch some JSON
    $.getJSON("json.php?act=vehicleInfo&id=" + this.id, function (json) {
        that.vehicleInfo = json
        that.icon = L.AwesomeMarkers.icon({ icon: that.vehicleInfo.icon, color: that.vehicleInfo.colour });
        that.polyline = new L.Polyline([[that.vehicleInfo.latitude, that.vehicleInfo.longitude]]);
        that.marker = L.marker([that.vehicleInfo.latitude, that.vehicleInfo.longitude], {icon: that.icon});
        that.marker.bindPopup("Test point");
        that.marker.addTo(map);
        that.polyline.addTo(map);
    });
}

// Vehicle move method
vehicle.prototype.move = function(latlng){
    this.marker.setLatLng(latlng);
    this.polyline.addLatLng(latlng);
}

当我调用.move()时,this.marker未定义.我在哪里错了？