[Tinyos-help] difference between message_t* ONE and message_t*?

[behnaz.bostanipour at epfl.ch]

Hello,

In $TOSROOT/apps/BaseStation/BaseStationP.nc what does the
signification of ONE in message_t* ONE?
we Have also two internal functions:
message_t* ONE receive(message_t* ONE msg, void* payload, uint8_t len);

and

  message_t* receive(message_t *msg, void *payload, uint8_t len)

Thanks,