e2reactor.py 文件源码

def _dictRemove(self, selectable, mdict):
        try:
            # the easy way
            fd = selectable.fileno()
            # make sure the fd is actually real.  In some situations we can get
            # -1 here.
            mdict[fd]
        except:
            # the hard way: necessary because fileno() may disappear at any
            # moment, thanks to python's underlying sockets impl
            for fd, fdes in selectables.items():
                if selectable is fdes:
                    break
            else:
                # Hmm, maybe not the right course of action?  This method can't
                # fail, because it happens inside error detection...
                return
        if fd in mdict:
            del mdict[fd]
            self._updateRegistration(fd)