| mbuf.h (210225) | mbuf.h (210226) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1993 3 * The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 14 unchanged lines hidden (view full) --- 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)mbuf.h 8.5 (Berkeley) 2/19/95 | 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1993 3 * The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 14 unchanged lines hidden (view full) --- 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)mbuf.h 8.5 (Berkeley) 2/19/95 |
| 31 * $FreeBSD: head/sys/sys/mbuf.h 210225 2010-07-18 20:23:10Z trasz $ | 31 * $FreeBSD: head/sys/sys/mbuf.h 210226 2010-07-18 20:57:53Z trasz $ |
| 32 */ 33 34#ifndef _SYS_MBUF_H_ 35#define _SYS_MBUF_H_ 36 37/* XXX: These includes suck. Sorry! */ 38#include <sys/queue.h> 39#ifdef _KERNEL --- 14 unchanged lines hidden (view full) --- 54 * clusters. 55 */ 56#define MLEN (MSIZE - sizeof(struct m_hdr)) /* normal data len */ 57#define MHLEN (MLEN - sizeof(struct pkthdr)) /* data len w/pkthdr */ 58#define MINCLSIZE (MHLEN + 1) /* smallest amount to put in cluster */ 59#define M_MAXCOMPRESS (MHLEN / 2) /* max amount to copy for compression */ 60 61#ifdef _KERNEL | 32 */ 33 34#ifndef _SYS_MBUF_H_ 35#define _SYS_MBUF_H_ 36 37/* XXX: These includes suck. Sorry! */ 38#include <sys/queue.h> 39#ifdef _KERNEL --- 14 unchanged lines hidden (view full) --- 54 * clusters. 55 */ 56#define MLEN (MSIZE - sizeof(struct m_hdr)) /* normal data len */ 57#define MHLEN (MLEN - sizeof(struct pkthdr)) /* data len w/pkthdr */ 58#define MINCLSIZE (MHLEN + 1) /* smallest amount to put in cluster */ 59#define M_MAXCOMPRESS (MHLEN / 2) /* max amount to copy for compression */ 60 61#ifdef _KERNEL |
| 62/* | 62/*- |
| 63 * Macro for type conversion: convert mbuf pointer to data pointer of correct 64 * type: 65 * 66 * mtod(m, t) -- Convert mbuf pointer to data pointer of correct type. 67 */ 68#define mtod(m, t) ((t)((m)->m_data)) 69 70/* --- 751 unchanged lines hidden (view full) --- 822void m_print(const struct mbuf *, int); 823struct mbuf *m_pulldown(struct mbuf *, int, int, int *); 824struct mbuf *m_pullup(struct mbuf *, int); 825int m_sanity(struct mbuf *, int); 826struct mbuf *m_split(struct mbuf *, int, int); 827struct mbuf *m_uiotombuf(struct uio *, int, int, int, int); 828struct mbuf *m_unshare(struct mbuf *, int how); 829 | 63 * Macro for type conversion: convert mbuf pointer to data pointer of correct 64 * type: 65 * 66 * mtod(m, t) -- Convert mbuf pointer to data pointer of correct type. 67 */ 68#define mtod(m, t) ((t)((m)->m_data)) 69 70/* --- 751 unchanged lines hidden (view full) --- 822void m_print(const struct mbuf *, int); 823struct mbuf *m_pulldown(struct mbuf *, int, int, int *); 824struct mbuf *m_pullup(struct mbuf *, int); 825int m_sanity(struct mbuf *, int); 826struct mbuf *m_split(struct mbuf *, int, int); 827struct mbuf *m_uiotombuf(struct uio *, int, int, int, int); 828struct mbuf *m_unshare(struct mbuf *, int how); 829 |
| 830/* | 830/*- |
| 831 * Network packets may have annotations attached by affixing a list of 832 * "packet tags" to the pkthdr structure. Packet tags are dynamically 833 * allocated semi-opaque data structures that have a fixed header 834 * (struct m_tag) that specifies the size of the memory block and a 835 * <cookie,type> pair that identifies it. The cookie is a 32-bit unique 836 * unsigned value used to identify a module or ABI. By convention this value 837 * is chosen as the date+time that the module is created, expressed as the 838 * number of seconds since the epoch (e.g., using date -u +'%s'). The type --- 195 unchanged lines hidden --- | 831 * Network packets may have annotations attached by affixing a list of 832 * "packet tags" to the pkthdr structure. Packet tags are dynamically 833 * allocated semi-opaque data structures that have a fixed header 834 * (struct m_tag) that specifies the size of the memory block and a 835 * <cookie,type> pair that identifies it. The cookie is a 32-bit unique 836 * unsigned value used to identify a module or ABI. By convention this value 837 * is chosen as the date+time that the module is created, expressed as the 838 * number of seconds since the epoch (e.g., using date -u +'%s'). The type --- 195 unchanged lines hidden --- |