linkb(9F)

NAME

linkb − concatenate two message blocks

#include <sys/stream.h>
void linkb(mblk_t ∗mp1, mblk_t ∗mp2);

Architecture independent level 1 (DDI/DKI).

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.

linkb() 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.

mp1
linkb(mp1, mp2);
mp2

data
buffer

data
buffer
db_base

db_base

b_datap

b_cont

b_datap

b_cont (0)

linkb() can be called from user or interrupt context.

See dupb(9F) for an example of using linkb().