PLCObject.py 文件源码

def GetLogMessage(self, level, msgid):
        tick = ctypes.c_uint32()
        tv_sec = ctypes.c_uint32()
        tv_nsec = ctypes.c_uint32()
        if self._GetLogMessage is not None:
            maxsz = len(self._log_read_buffer)-1
            sz = self._GetLogMessage(level, msgid,
                                     self._log_read_buffer, maxsz,
                                     ctypes.byref(tick),
                                     ctypes.byref(tv_sec),
                                     ctypes.byref(tv_nsec))
            if sz and sz <= maxsz:
                self._log_read_buffer[sz] = '\x00'
                return self._log_read_buffer.value, tick.value, tv_sec.value, tv_nsec.value
        elif self._loading_error is not None and level == 0:
            return self._loading_error, 0, 0, 0
        return None