RTEMS 4.5.1-pre3 On-Line Library

Mailbox Manager ref_mbx - Reference Mailbox Status

RTEMS ITRON 3.0 API User's Guide

ER ref_mbx(
  T_RMBX *pk_rmbx,
  ID      mbxid
);

E_OK - Normal completion
E_ID - Invalid ID number
E_NOEXS - Object does not exist
E_OACV - Object access violation
E_PAR - Parameter error

Supports non-blocking receive. If there are no messages, it returns -1. Also returns id of the next process waiting on a message.

NONE

RTEMS ITRON 3.0 API User's Guide