put(9f) [sunos man page]

put(9F) 						   Kernel Functions for Drivers 						   put(9F)

NAME

       put - call a STREAMS put procedure

SYNOPSIS

       #include <sys/stream.h>
       #include <sys/ddi.h>

       void put(queue_t *q, mblk_t *mp);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       q	Pointer to a STREAMS queue.

       mp	Pointer to message block being passed into queue.

DESCRIPTION

       put()  calls the put procedure ( put(9E) entry point) for the STREAMS queue specified by q, passing it the message block referred to by mp.
       It is typically used by a driver or module to call its own put procedure.

CONTEXT

       put() 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 q argument.

       Since  put()  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 (put(9E), putnext(9F), putctl(9F), qreply(9F)).  This function is provided	as  a  DDI/DKI	conforming
       replacement for a direct call to a put procedure.

SEE ALSO

       put(9E), freezestr(9F), putctl(9F), putctl1(9F), putnext(9F), putnextctl(9F), putnextctl1(9F), qprocson(9F), qreply(9F)

       Writing Device Drivers

	STREAMS Programming Guide

NOTES

       The caller cannot have the stream frozen when calling this function.  See  freezestr(9F).

       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, put(9E), putnext(9F), putctl(9F), and qreply(9F). This function is provided as a DDI/DKI	conforming
       replacement for a direct call to a put procedure.

       The put() and putnext() functions should be called only after qprocson() is finished.

SunOS 5.10							    28 Apr 1992 							   put(9F)

qprocson(9F)						   Kernel Functions for Drivers 					      qprocson(9F)

NAME

       qprocson, qprocsoff - enable, disable put and service routines

SYNOPSIS

       #include <sys/stream.h>
       #include <sys/ddi.h>

       void qprocson(queue_t *q);

       void qprocsoff(queue_t *q);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       q	Pointer to the RD side of a STREAMS queue pair.

DESCRIPTION

       qprocson() enables the put and service routines of the driver or module whose read queue is pointed to by q.  Threads cannot enter the mod-
       ule instance through the put and service routines while they are disabled.

       qprocson() must be called by the open routine of a driver or module before returning, and after any initialization necessary for the proper
       functioning of the put and service routines.

       qprocson() must be called before calling put(9F), putnext(9F), qbufcall(9F), qtimeout(9F), qwait(9F), or qwait_sig(9F).

       qprocsoff() must be called by the close routine of a driver or module before returning, and before deallocating any resources necessary for
       the proper functioning of the put and service routines. It also removes the queue's service routines from the  service  queue,  and  blocks
       until any pending service processing completes.

       The  module  or driver instance is guaranteed to be single-threaded before qprocson() is called and after qprocsoff() is called, except for
       threads executing asynchronous events such as interrupt handlers and callbacks, which must be handled separately.

CONTEXT

       These routines can be called from user or interrupt context.

SEE ALSO

       close(9E), open(9E), put(9E), srv(9E), put(9F), putnext(9F), qbufcall(9F), qtimeout(9F), qwait(9F), qwait_sig(9F)

       Writing Device Drivers

       STREAMS Programming Guide

NOTES

       The caller may not have the STREAM frozen during either of these calls.

SunOS 5.10							    11 Nov 1992 						      qprocson(9F)