'\" te
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.TH put 9F "28 Apr 1992" "SunOS 5.11" "Kernel Functions for Drivers"
.SH NAME
put \- call a STREAMS put procedure
.SH SYNOPSIS
.LP
.nf
#include <sys/stream.h>
#include <sys/ddi.h>



\fBvoid\fR \fBput\fR(\fBqueue_t *\fR\fIq\fR, \fBmblk_t *\fR\fImp\fR);
.fi

.SH INTERFACE LEVEL
.sp
.LP
Architecture independent level 1 (DDI/DKI).
.SH PARAMETERS
.sp
.ne 2
.mk
.na
\fB\fIq\fR \fR
.ad
.RS 7n
.rt  
Pointer to a STREAMS queue.
.RE

.sp
.ne 2
.mk
.na
\fB\fImp\fR \fR
.ad
.RS 7n
.rt  
Pointer to message block being passed into queue.
.RE

.SH DESCRIPTION
.sp
.LP
\fBput()\fR calls the put procedure ( \fBput\fR(9E) entry point) for the
STREAMS queue specified by \fIq\fR, passing it the message block referred to by
\fImp\fR. It is typically used by a driver or module to call its own put
procedure.
.SH CONTEXT
.sp
.LP
\fBput()\fR can be called from a STREAMS module or driver put or service
routine, or from an associated interrupt handler, timeout, bufcall, or esballoc
call-back. In the latter cases, the calling code must guarantee the validity of
the \fIq\fR argument.
.sp
.LP
Since \fBput()\fR may cause re-entry of the module (as it is intended to do),
mutexes or other locks should not be held across calls to it, due to the risk
of single-party deadlock (\fBput\fR(9E), \fBputnext\fR(9F), \fBputctl\fR(9F),
\fBqreply\fR(9F)). This function is provided as a DDI/DKI conforming
replacement for a direct call to a put procedure.
.SH SEE ALSO
.sp
.LP
\fBput\fR(9E), \fBfreezestr\fR(9F), \fBputctl\fR(9F), \fBputctl1\fR(9F),
\fBputnext\fR(9F), \fBputnextctl\fR(9F), \fBputnextctl1\fR(9F),
\fBqprocson\fR(9F), \fBqreply\fR(9F)
.sp
.LP
\fIWriting Device Drivers\fR
.sp
.LP
 \fISTREAMS Programming Guide\fR
.SH NOTES
.sp
.LP
The caller cannot have the stream frozen when calling this function. See
\fBfreezestr\fR(9F).
.sp
.LP
DDI/DKI conforming modules and drivers are no longer permitted to call put
procedures directly, but must call through the appropriate STREAMS utility
function, for example, \fBput\fR(9E), \fBputnext\fR(9F), \fBputctl\fR(9F), and
\fBqreply\fR(9F). This function is provided as a DDI/DKI conforming replacement
for a direct call to a put procedure.
.sp
.LP
The \fBput()\fR and \fBputnext()\fR functions should be called only after
\fBqprocson()\fR is finished.