QUECLASS(9S) Data Structures for Drivers QUECLASS(9S)

queclass - a STREAMS macro that returns the queue message class definitions for a given message block

#include <sys/stream.h>
queclass(mblk_t *bp);

illumos DDI specific (illumos DDI)

queclass returns the queue message class definition for a given data block pointed to by the message block bp passed in.

The message can be either QNORM, a normal priority message, or QPCTL, a high priority message.

STREAMS Programming Guide

March 7, 1994 OmniOS