te
Copyright (c) 2006, Sun Microsystems, Inc. All Rights Reserved.
Copyright 1989 AT&T
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
enableok - reschedule a queue for service

#include <sys/stream.h>
#include <sys/ddi.h>



void enableok(queue_t *q);

Architecture independent level 1 (DDI/DKI).

q

The enableok() function enables queue q to be rescheduled for service. It reverses the effect of a previous call to noenable(9F) on q by turning off the QNOENB flag in the queue.

The enableok() function can be called from user, interrupt, or kernel context.

Example 1 Using emableok()

The qrestart() routine uses two STREAMS functions to restart a queue that has been disabled. The enableok() function turns off the QNOENB flag, allowing the qenable(9F) to schedule the queue for immediate processing.

1 void
2 qrestart(rdwr_q)
3 register queue_t *rdwr_q;
4 {
5 enableok(rdwr_q);
6 /* re-enable a queue that has been disabled */
7 (void) qenable(rdwr_q);
8 }

noenable(9F), qenable(9F)

Writing Device Drivers

STREAMS Programming Guide