processes.py 文件源码

def startQtEventLoop(name, port, authkey, ppid, debug=False):
    if debug:
        import os
        cprint.cout(debug, '[%d] connecting to server at port localhost:%d, authkey=%s..\n' % (os.getpid(), port, repr(authkey)), -1)
    conn = multiprocessing.connection.Client(('localhost', int(port)), authkey=authkey)
    if debug:
        cprint.cout(debug, '[%d] connected; starting remote proxy.\n' % os.getpid(), -1)
    from ..Qt import QtGui, QtCore
    app = QtGui.QApplication.instance()
    #print app
    if app is None:
        app = QtGui.QApplication([])
        app.setQuitOnLastWindowClosed(False)  ## generally we want the event loop to stay open 
                                              ## until it is explicitly closed by the parent process.

    global HANDLER
    HANDLER = RemoteQtEventHandler(conn, name, ppid, debug=debug)
    HANDLER.startEventTimer()
    app.exec_()