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6 .TH QUNBUFCALL 9F "Jan 16, 2006"
8 qunbufcall \- cancel a pending qbufcall request
12 #include <sys/stream.h>
16 \fBvoid\fR \fBqunbufcall\fR(\fBqueue_t *\fR\fIq\fR, \fBbufcall_id_t\fR \fIid\fR);
22 Solaris DDI specific (Solaris DDI).
30 Pointer to \fBSTREAMS\fR queue_t structure.
39 Identifier returned from \fBqbufcall\fR(9F).
45 The \fBqunbufcall()\fR function cancels a pending \fBqbufcall()\fR request. The
46 argument \fIid\fR is a non-zero identifier of the request to be cancelled.
47 \fIid\fR is returned from the \fBqbufcall()\fR function used to issue the
51 The \fBqunbufcall()\fR function is tailored to be used with the enhanced
52 \fBSTREAMS \fRframework interface which is based on the concept of perimeters.
53 (See \fBmt-streams\fR(9F).) \fBqunbufcall()\fR returns when the bufcall has
54 been cancelled or finished executing. The bufcall will be cancelled even if it
55 is blocked at the perimeters associated with the queue. All outstanding
56 timeouts and bufcalls must be cancelled before a driver close routine can block
57 and before the close routine calls \fBqprocsoff\fR(9F).
61 The \fBqunbufcall()\fR function can be called from user, interrupt, or kernel
66 \fBmt-streams\fR(9F), \fBqbufcall\fR(9F), \fBqtimeout\fR(9F),
70 \fIWriting Device Drivers\fR
73 \fISTREAMS Programming Guide\fR