ENABLEOK(9F) | Kernel Functions for Drivers | ENABLEOK(9F) |
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 }
Writing Device Drivers
STREAMS Programming Guide
January 16, 2006 | OmniOS |