noenable.9

7号信令功能代码,为开源代码

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.\" @(#) noenable.9,v 1.1.4.1 2004/01/12 23:33:09 brian Exp
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.TH NOENABLE 9 "2004/01/12 23:33:09" "LiS-2_16_18-8" "Linux STREAMS DDI/DKI"
.SH NAME
.B noenable, lis_noenable
\- disables a \fISTREAMS\fR message queue from being scheduled
.SH SYNOPSIS
.PP
.B #include <sys/stream.h>
.HP 8
.BI "noenable(queue_t *" q );
.SH DESCRIPTION
.PP
.BR noenable ()
sets the
.B QNOENB
flag on the specified
.IR q .
This tells the
.IR STREAMS (4)
executive that the
.I q
cannot be scheduled for
.BR runqueues () .
.PP
.BR noenable ()
can be cancelled with
.BR enableok (9).
.PP
If
.BR noenable ()
has been called for a
.IR q ,
and
.BR enableok (9)
has not subsequently been called for the same
.IR q ,
a second call to
.BR noenable ()
will have no effect.
.SH "RETURN VALUES"
.PP
.BR noenable ()
returns void.
.SH ERRORS
.PP
If the
.I q
passed to
.BR noenable ()
is
.B NULL
or does not point to a queue structure,
then
.BR noenable ()
will silently fail.
.SH CAVEATS
.PP
.BR noenable ()
does not remove the
.I q
from the current
.BR runqueues ()
schedule list.  It only sets the
.B QNOENB
flag to indicate whether the queue should be subsequently scheduled.
To stop a queue from being scheduled, use
.BR qprocsoff (9).
.SH "SEE ALSO"
.PP
.BR enableok (9),
.BR canenable (9),
and
.BR qenable (9).
.SH VERSIONS
.PP
The manpage was written for
.B LiS\c
.
.[
LiS
.]
.PP
.BR noenable ()
first appeared in SVR 3.
.[
svr3
.]
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