def _convert_fields(self, fields: Dict[str, Any]) -> List[GLib.LogField]:
"""
Convert a record fields to an list of :py:class:`GLib.LogField`.
:param fields: The fields to convert.
:returns: The converted fields.
"""
log_fields: List[GLib.LogField] = []
for key, value in fields.items():
# TODO: Convert GLib Variants
if isinstance(value, str):
length = -1
cvalue = ctypes.create_string_buffer(value.encode('utf-8'))
else:
if not isinstance(value, bytes):
value = str(value).encode('utf-8')
length = len(value)
cvalue = ctypes.create_string_buffer(value, len(value))
log_field = GLib.LogField()
log_field.key = key
log_field.length = length
log_field.value = ctypes.addressof(cvalue)
# Keep cvalue buffer alive until after logging (using) it
setattr(log_field, '_p2g_value_ctypes', cvalue)
log_fields.append(log_field)
return log_fields
