def _check_flags(flags):
as_list = []
flags &= libev.EVBACKEND_MASK
if not flags:
return
if not (flags & libev.EVBACKEND_ALL):
raise ValueError('Invalid value for backend: 0x%x' % flags)
if not (flags & libev.ev_supported_backends()):
as_list = [_str_hex(x) for x in _flags_to_list(flags)]
raise ValueError('Unsupported backend: %s' % '|'.join(as_list))
def supported_backends():
return _flags_to_list(libev.ev_supported_backends())
