qsize(9F)

NAME | SYNOPSIS | INTERFACE LEVEL | PARAMETERS | DESCRIPTION | RETURN VALUES | CONTEXT | SEE ALSO

NAME

qsize- find the number of messages on a queue

SYNOPSIS

#include <sys/stream.h>

int qsize(queue_t *q);

INTERFACE LEVEL

Architecture independent level 1 (DDI/DKI).

PARAMETERS

q

Queue to be evaluated.

DESCRIPTION

qsize() evaluates the queue q and returns the number of messages it contains.

RETURN VALUES

If there are no message on the queue, qsize() returns 0. Otherwise, it returns the integer representing the number of messages on the queue.

CONTEXT

qsize() can be called from user or interrupt context.

SEE ALSO

Writing Device Drivers

STREAMS Programming Guide

SunOS 5.8  Last Revised 11 Apr 1991

NAME | SYNOPSIS | INTERFACE LEVEL | PARAMETERS | DESCRIPTION | RETURN VALUES | CONTEXT | SEE ALSO