UNBUFCALL(9F)UNBUFCALL(9F)NAME
unbufcall - cancel a pending bufcall request
SYNOPSIS
#include <sys/stream.h>
void unbufcall(bufcall_id_t id);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
id
Identifier returned from bufcall(9F) or esbbcall(9F).
DESCRIPTION
The unbufcall function cancels a pending bufcall() or esbbcall()
request. The argument id is a non-zero identifier for the request to be
cancelled. id is returned from the bufcall() or esbbcall() function
used to issue the request. unbufcall() will not return until the pend‐
ing callback is cancelled or has run. Because of this, locks acquired
by the callback routine should not be held across the call to unbuf‐
call() or deadlock may result.
RETURN VALUES
None.
CONTEXT
The unbufcall function can be called from user, interrupt, or kernel
context.
SEE ALSObufcall(9F), esbbcall(9F)
Writing Device Drivers
STREAMS Programming Guide
Jan 16, 2006 UNBUFCALL(9F)
