RD man page on SmartOS

RD man page on SmartOS

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RD(9F)									RD(9F)

NAME
       RD, rd - get pointer to the read queue

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

       queue_t *RD(queue_t *q);

INTERFACE LEVEL
       Architecture independent level 1 (DDI/DKI).

PARAMETERS
       q
	    Pointer to the write queue whose read queue is to be returned.

DESCRIPTION
       The  RD()  function  accepts  a	write queue pointer as an argument and
       returns a pointer to the read queue of the same module.

       CAUTION: Make sure the argument to this function	 is  a	pointer	 to  a
       write  queue.  RD()  will  not check for queue type, and a system panic
       could result if it is not the right type.

RETURN VALUES
       The pointer to the read queue.

CONTEXT
       The RD() function can be called from user, interrupt,  or  kernel  con‐
       text.

EXAMPLES
       Example 1 Function page reference

       See the qreply(9F) function page for an example of RD().

SEE ALSO
       qreply(9F), WR(9F)

       Writing Device Drivers

       STREAMS Programming Guide

				 Jan 16, 2006				RD(9F)

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