linkb(9F) Kernel Functions for Drivers linkb(9F)NAMElinkb - concatenate two message blocks
SYNOPSIS
#include <sys/stream.h>
void linkb(mblk_t *mp1, mblk_t *mp2);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
DESCRIPTION
The linkb() function creates a new message by adding mp2 to the tail of
mp1. The continuation pointer, b_cont, of mp1 is set to point to mp2.
The following figure describes how the linkb(m1, m2); function concate‐
nates two message blocks, mp1 and mp2:
Printed copy or docs.sun.com shows a figure that describes how the
linkb(m1, m2); function creates a new message by adding mp1 to the tail
of mp2
PARAMETERS
mp1 The message to which mp2 is to be added. mblk_t is an instance
of the msgb(9S) structure.
mp2 The message to be added.
CONTEXT
The linkb() function can be called from user, interrupt, or kernel con‐
text.
EXAMPLES
See dupb(9F) for an example that uses linkb().
SEE ALSOdupb(9F), unlinkb(9F), msgb(9S)
Writing Device Drivers
STREAMS Programming Guide
SunOS 5.11 16 Jan 2006 linkb(9F)