1.\" Copyright (c) 2000 FreeBSD Inc. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 8 unchanged lines hidden (view full) --- 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" |
25.\" $FreeBSD: head/share/man/man9/mbuf.9 131530 2004-07-03 18:29:24Z ru $ |
26.\" 27.Dd May 20, 2004 28.Dt MBUF 9 29.Os 30.\" 31.Sh NAME 32.Nm mbuf 33.Nd "memory management in the kernel IPC subsystem" --- 410 unchanged lines hidden (view full) --- 444Returns the number of bytes available after the end of data in 445.Fa mbuf . 446.It Fn M_PREPEND mbuf len how 447This macro operates on an 448.Vt mbuf chain . 449It is an optimized wrapper for 450.Fn m_prepend 451that can make use of possible empty space before data |
452(e.g.\& left after trimming of a link-layer header). |
453The new 454.Vt mbuf chain 455pointer or 456.Dv NULL 457is in 458.Fa mbuf 459after the call. 460.It Fn M_MOVE_PKTHDR to from --- 609 unchanged lines hidden --- |