tcp.py 文件源码

def doRead(self):
        if self.writeBlockedOnRead:
            self.writeBlockedOnRead = 0
            self._resetReadWrite()
        try:
            return Connection.doRead(self)
        except SSL.ZeroReturnError:
            return main.CONNECTION_DONE
        except SSL.WantReadError:
            return
        except SSL.WantWriteError:
            self.readBlockedOnWrite = 1
            Connection.startWriting(self)
            Connection.stopReading(self)
            return
        except SSL.SysCallError, (retval, desc):
            if ((retval == -1 and desc == 'Unexpected EOF')
                or retval > 0):
                return main.CONNECTION_LOST
            log.err()
            return main.CONNECTION_LOST
        except SSL.Error, e:
            return e