1linkb(9F)                Kernel Functions for Drivers                linkb(9F)
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NAME

6       linkb - concatenate two message blocks
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SYNOPSIS

9       #include <sys/stream.h>
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13       void linkb(mblk_t *mp1, mblk_t *mp2);
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INTERFACE LEVEL

17       Architecture independent level 1 (DDI/DKI).
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DESCRIPTION

20       The linkb() function creates a new message by adding mp2 to the tail of
21       mp1. The continuation pointer, b_cont, of mp1 is set to point to mp2.
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24       The following figure describes how the linkb(m1, m2); function concate‐
25       nates two message blocks, mp1 and mp2:
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27       Printed  copy  or  docs.sun.com  shows  a figure that describes how the
28       linkb(m1, m2); function creates a new message by adding mp1 to the tail
29       of mp2
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PARAMETERS

32       mp1    The  message  to which mp2 is to be added. mblk_t is an instance
33              of the msgb(9S) structure.
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36       mp2    The message to be added.
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CONTEXT

40       The linkb() function can be called from user, interrupt, or kernel con‐
41       text.
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EXAMPLES

44       See dupb(9F) for an example that uses linkb().
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SEE ALSO

47       dupb(9F), unlinkb(9F), msgb(9S)
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50       Writing Device Drivers
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53       STREAMS Programming Guide
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57SunOS 5.11                        16 Jan 2006                        linkb(9F)