osf1 man page for qsize

qsize(9r)																 qsize(9r)

NAME
       qsize - STREAMS: Finds the number of messages on a queue

SYNOPSIS
       #include <sys/stream.h>

       int qsize(
	       queue_t *queue_pointer );

ARGUMENTS
       Specifies a pointer to the queue to be evaluated. The typedef queue_t is an alternate name for struct queue_entry *.

DESCRIPTION
       The qsize interface evaluates the queue associated with the queue_pointer argument and returns the number of messages it contains.

RETURN VALUES
       If  there are no messages in the queue, qsize returns the value zero(0). Otherwise, it returns the integer representing the number of mes-
       sages on the queue.

																	 qsize(9r)