使用哪个版本的Joomla- 1.5或1.7？(Which version of Joomla to use- 1.5 or 1.7?)

 获得此功能的一种简单方法是将gps位置存储在全局变量中，并在需要打印某些数据时将wifi嗅探线程读取为全局; 问题是因为两个线程可以同时访问全局变量，所以你需要用互斥量包装它; 
 
last_location = (None, None)
location_mutex = threading.Lock()

def gpsInfo():
    global last_location
    while True:
        session.poll()
        time.sleep(5)
        if gps.PACKET_SET:
            session.stream
            with location_mutex:
                # DON'T Print from inside thread!
                last_location = session.fix.latitude, session.fix.longitude
            time.sleep(0.1)

def WifiDetect(p):
    if p.haslayer(Dot11):
        if p.type == 0 and p.subtype in stamgmtstypes:
            if p.addr2 not in observedclients:
                with location_mutex:
                    print p.addr2, last_location
                    observedclients.append((p.addr2, last_location))  

A simple way of getting this is store the gps location in a global variable, and have the wifi sniffing thread read that global when it needs to print some data; The gotcha is that since two threads can be accessing the global variable at the same time, you'll want to wrap it with a mutex;
 
last_location = (None, None)
location_mutex = threading.Lock()

def gpsInfo():
    global last_location
    while True:
        session.poll()
        time.sleep(5)
        if gps.PACKET_SET:
            session.stream
            with location_mutex:
                # DON'T Print from inside thread!
                last_location = session.fix.latitude, session.fix.longitude
            time.sleep(0.1)

def WifiDetect(p):
    if p.haslayer(Dot11):
        if p.type == 0 and p.subtype in stamgmtstypes:
            if p.addr2 not in observedclients:
                with location_mutex:
                    print p.addr2, last_location
                    observedclients.append((p.addr2, last_location))