freebsd-skq/lib/libcompat/4.3/insque.3
1997-04-13 14:05:58 +00:00

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.\" @(#)insque.3 8.2 (Berkeley) 12/11/93
.\"
.Dd December 11, 1993
.Dt INSQUE 3
.Os BSD 4.2
.Sh NAME
.Nm insque ,
.Nm remque
.Nd insert/remove element from a queue
.Sh SYNOPSIS
.Bd -literal
struct qelem {
struct qelem *q_forw;
struct qelem *q_back;
char q_data[];
};
.Ed
.Ft void
.Fn insque "struct qelem *elem" "struct qelem *pred"
.Ft void
.Fn remque "struct qelem *elem"
.Sh DESCRIPTION
.Bf -symbolic
The insque and remque functions are considered obsolete.
.br
They are available from the compatibility library, libcompat.
.Ef
.Pp
The
.Fn insque
and
.Fn remque
functions
manipulate queues built from doubly linked lists. Each
element in the queue must be in the form of
.Dq Li struct qelem .
The function
.Fn insque
inserts
.Fa elem
in a queue immediately after
.Fa pred ;
.Fn remque
removes an entry
.Fa elem
from a queue.
.Sh SEE ALSO
.%T "VAX Architecture Handbook" ,
pp. 228-235.
.Sh HISTORY
The
.Fn insque
and
.Fn remque
functions appeared in
.Bx 4.2 .