noenable(9F) Kernel Functions for Drivers noenable(9F)NAME
noenable - prevent a queue from being scheduled
SYNOPSIS
#include <sys/stream.h>
#include <sys/ddi.h>
void noenable(queue_t *q);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
q Pointer to the queue.
DESCRIPTION
The noenable() function prevents the q from being scheduled for service by insq(9F), putq(9F) or putbq(9F) when enqueuing an ordinary pri-
ority message. The queue can be re-enabled with the enableok(9F) function.
CONTEXT
The noenable() function can be called from user, interrupt, or kernel context.
SEE ALSO enableok(9F), insq(9F), putbq(9F), putq(9F), qenable(9F)
Writing Device Drivers
STREAMS Programming Guide
SunOS 5.11 16 Jan 2006 noenable(9F)
Check Out this Related Man Page
enableok(9F) Kernel Functions for Drivers enableok(9F)NAME
enableok - reschedule a queue for service
SYNOPSIS
#include <sys/stream.h>
#include <sys/ddi.h>
void enableok(queue_t *q);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
q A pointer to the queue to be rescheduled.
DESCRIPTION
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.
CONTEXT
The enableok() function can be called from user, interrupt, or kernel context.
EXAMPLES
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 }
SEE ALSO noenable(9F), qenable(9F)
Writing Device Drivers
STREAMS Programming Guide
SunOS 5.11 16 Jan 2006 enableok(9F)
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