| sockbuf.h (262914) | sockbuf.h (262915) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 14 unchanged lines hidden (view full) --- 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)socketvar.h 8.3 (Berkeley) 2/19/95 30 * | 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 14 unchanged lines hidden (view full) --- 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)socketvar.h 8.3 (Berkeley) 2/19/95 30 * |
| 31 * $FreeBSD: head/sys/sys/sockbuf.h 262914 2014-03-07 23:30:48Z asomers $ | 31 * $FreeBSD: head/sys/sys/sockbuf.h 262915 2014-03-07 23:40:36Z asomers $ |
| 32 */ 33#ifndef _SYS_SOCKBUF_H_ 34#define _SYS_SOCKBUF_H_ 35#include <sys/selinfo.h> /* for struct selinfo */ 36#include <sys/_lock.h> 37#include <sys/_mutex.h> 38#include <sys/_sx.h> 39 --- 7 unchanged lines hidden (view full) --- 47#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 48#define SB_UPCALL 0x20 /* someone wants an upcall */ 49#define SB_NOINTR 0x40 /* operations not interruptible */ 50#define SB_AIO 0x80 /* AIO operations queued */ 51#define SB_KNOTE 0x100 /* kernel note attached */ 52#define SB_NOCOALESCE 0x200 /* don't coalesce new data into existing mbufs */ 53#define SB_IN_TOE 0x400 /* socket buffer is in the middle of an operation */ 54#define SB_AUTOSIZE 0x800 /* automatically size socket buffer */ | 32 */ 33#ifndef _SYS_SOCKBUF_H_ 34#define _SYS_SOCKBUF_H_ 35#include <sys/selinfo.h> /* for struct selinfo */ 36#include <sys/_lock.h> 37#include <sys/_mutex.h> 38#include <sys/_sx.h> 39 --- 7 unchanged lines hidden (view full) --- 47#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 48#define SB_UPCALL 0x20 /* someone wants an upcall */ 49#define SB_NOINTR 0x40 /* operations not interruptible */ 50#define SB_AIO 0x80 /* AIO operations queued */ 51#define SB_KNOTE 0x100 /* kernel note attached */ 52#define SB_NOCOALESCE 0x200 /* don't coalesce new data into existing mbufs */ 53#define SB_IN_TOE 0x400 /* socket buffer is in the middle of an operation */ 54#define SB_AUTOSIZE 0x800 /* automatically size socket buffer */ |
| 55#define SB_STOP 0x1000 /* backpressure indicator */ | |
| 56 57#define SBS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 58#define SBS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 59#define SBS_RCVATMARK 0x0040 /* at mark on input */ 60 61struct mbuf; 62struct sockaddr; 63struct socket; --- 100 unchanged lines hidden (view full) --- 164void sbunlock(struct sockbuf *sb); 165 166/* 167 * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 168 * This is problematical if the fields are unsigned, as the space might 169 * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 170 * overflow and return 0. Should use "lmin" but it doesn't exist now. 171 */ | 55 56#define SBS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 57#define SBS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 58#define SBS_RCVATMARK 0x0040 /* at mark on input */ 59 60struct mbuf; 61struct sockaddr; 62struct socket; --- 100 unchanged lines hidden (view full) --- 163void sbunlock(struct sockbuf *sb); 164 165/* 166 * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 167 * This is problematical if the fields are unsigned, as the space might 168 * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 169 * overflow and return 0. Should use "lmin" but it doesn't exist now. 170 */ |
| 172static __inline 173long 174sbspace(struct sockbuf *sb) 175{ 176 long bleft; 177 long mleft; | 171#define sbspace(sb) \ 172 ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 173 (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) |
| 178 | 174 |
| 179 if (sb->sb_flags & SB_STOP) 180 return(0); 181 bleft = sb->sb_hiwat - sb->sb_cc; 182 mleft = sb->sb_mbmax - sb->sb_mbcnt; 183 return((bleft < mleft) ? bleft : mleft); 184} 185 | |
| 186/* adjust counters in sb reflecting allocation of m */ 187#define sballoc(sb, m) { \ 188 (sb)->sb_cc += (m)->m_len; \ 189 if ((m)->m_type != MT_DATA && (m)->m_type != MT_OOBDATA) \ 190 (sb)->sb_ctl += (m)->m_len; \ 191 (sb)->sb_mbcnt += MSIZE; \ 192 (sb)->sb_mcnt += 1; \ 193 if ((m)->m_flags & M_EXT) { \ --- 45 unchanged lines hidden --- | 175/* adjust counters in sb reflecting allocation of m */ 176#define sballoc(sb, m) { \ 177 (sb)->sb_cc += (m)->m_len; \ 178 if ((m)->m_type != MT_DATA && (m)->m_type != MT_OOBDATA) \ 179 (sb)->sb_ctl += (m)->m_len; \ 180 (sb)->sb_mbcnt += MSIZE; \ 181 (sb)->sb_mcnt += 1; \ 182 if ((m)->m_flags & M_EXT) { \ --- 45 unchanged lines hidden --- |