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6 .TH MIOCACK 9F "Jun 9, 2004"
8 miocack \- Positively acknowledge an M_IOCTL message
12 #include <sys/stream.h>
13 #include <sys/strsun.h>
17 \fBvoid\fR \fBmiocack\fR(\fBqueue_t *\fR\fIwq\fR, \fBmblk_t *\fR\fImp\fR, \fBint\fR\fIcount\fR, \fBint\fR \fIrval\fR);
23 Solaris DDI specific (Solaris DDI).
31 Write queue associated with the read queue to send the M_IOCACK on.
49 Value to set the ioc_count of the \fBiocblk\fR(9S) to.
58 Value to set the ioc_rval of the \fBiocblk\fR(9S) to.
64 The \fBmiocack()\fR function converts an M_IOCTL message into a M_IOCACK
65 message and sends the resulting message upstream.
68 To convert the message, \fBmiocack()\fR changes the message type to M_IOCACK,
69 sets the 'ioc_count' and 'ioc_rval' members of the \fBiocblk\fR(9S) associated
70 with \fImp\fR to the passed-in values, and clears the 'ioc_error' field. If the
71 caller specifies a non-zero value for count, it is expected that the caller has
72 already set 'mp->b_cont' field to point to a message block with a length of at
73 least \fIcount\fR bytes.
76 Callers that only need to perform the message conversion, or need to perform
77 additional steps between the conversion and the sending of the M_IOCACK
78 should use \fBmioc2ack\fR(9F).
86 This function can be called from user, kernel or interrupt context.
90 Callers must not hold any locks across a \fBmiocack()\fR that can be acquired
91 as part of \fBput\fR(9E) processing.
95 \fBmioc2ack\fR(9F), \fBput\fR(9E), \fBiocblk\fR(9S)
98 \fISTREAMS Programming Guide\fR