diff options
Diffstat (limited to 'usr/src/lib/libbc/inc/include/sys/socketvar.h')
| -rw-r--r-- | usr/src/lib/libbc/inc/include/sys/socketvar.h | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/usr/src/lib/libbc/inc/include/sys/socketvar.h b/usr/src/lib/libbc/inc/include/sys/socketvar.h deleted file mode 100644 index 35e8677e20..0000000000 --- a/usr/src/lib/libbc/inc/include/sys/socketvar.h +++ /dev/null @@ -1,176 +0,0 @@ -/* from UCB 7.3 12/30/87 */ - -#pragma ident "%Z%%M% %I% %E% SMI" - -/* - * Copyright (c) 1982, 1986 Regents of the University of California. - * All rights reserved. The Berkeley software License Agreement - * specifies the terms and conditions for redistribution. - */ - -#ifndef _sys_socketvar_h -#define _sys_socketvar_h - -/* - * Kernel structure per socket. - * Contains send and receive buffer queues, - * handle on protocol and pointer to protocol - * private data and error information. - */ -struct socket { - short so_type; /* generic type, see socket.h */ - short so_options; /* from socket call, see socket.h */ - short so_linger; /* time to linger while closing */ - short so_state; /* internal state flags SS_*, below */ - caddr_t so_pcb; /* protocol control block */ - struct protosw *so_proto; /* protocol handle */ -/* - * Variables for connection queueing. - * Socket where accepts occur is so_head in all subsidiary sockets. - * If so_head is 0, socket is not related to an accept. - * For head socket so_q0 queues partially completed connections, - * while so_q is a queue of connections ready to be accepted. - * If a connection is aborted and it has so_head set, then - * it has to be pulled out of either so_q0 or so_q. - * We allow connections to queue up based on current queue lengths - * and limit on number of queued connections for this socket. - */ - struct socket *so_head; /* back pointer to accept socket */ - struct socket *so_q0; /* queue of partial connections */ - struct socket *so_q; /* queue of incoming connections */ - short so_q0len; /* partials on so_q0 */ - short so_qlen; /* number of connections on so_q */ - short so_qlimit; /* max number queued connections */ - short so_timeo; /* connection timeout */ - u_short so_error; /* error affecting connection */ - short so_pgrp; /* pgrp for signals */ - u_long so_oobmark; /* chars to oob mark */ -/* - * Variables for socket buffering. - */ - struct sockbuf { - u_long sb_cc; /* actual chars in buffer */ - u_long sb_hiwat; /* max actual char count */ - u_long sb_mbcnt; /* chars of mbufs used */ - u_long sb_mbmax; /* max chars of mbufs to use */ - u_long sb_lowat; /* low water mark (not used yet) */ - struct mbuf *sb_mb; /* the mbuf chain */ - struct proc *sb_sel; /* process selecting read/write */ - short sb_timeo; /* timeout (not used yet) */ - short sb_flags; /* flags, see below */ - } so_rcv, so_snd; -#define SB_MAX (64*1024) /* max chars in sockbuf */ -#define SB_LOCK 0x01 /* lock on data queue (so_rcv only) */ -#define SB_WANT 0x02 /* someone is waiting to lock */ -#define SB_WAIT 0x04 /* someone is waiting for data/space */ -#define SB_SEL 0x08 /* buffer is selected */ -#define SB_COLL 0x10 /* collision selecting */ -/* - * Hooks for alternative wakeup strategies. - * These are used by kernel subsystems wishing to access the socket - * abstraction. If so_wupfunc is nonnull, it is called in place of - * wakeup any time that wakeup would otherwise be called with an - * argument whose value is an address lying within a socket structure. - */ - struct wupalt *so_wupalt; -}; - -struct wupalt { - int (*wup_func)(); /* function to call instead of wakeup */ - caddr_t wup_arg; /* argument for so_wupfunc */ - /* - * Other state information here, for example, for a stream - * connected to a socket. - */ -}; - -/* - * Socket state bits. - */ -#define SS_NOFDREF 0x001 /* no file table ref any more */ -#define SS_ISCONNECTED 0x002 /* socket connected to a peer */ -#define SS_ISCONNECTING 0x004 /* in process of connecting to peer */ -#define SS_ISDISCONNECTING 0x008 /* in process of disconnecting */ -#define SS_CANTSENDMORE 0x010 /* can't send more data to peer */ -#define SS_CANTRCVMORE 0x020 /* can't receive more data from peer */ -#define SS_RCVATMARK 0x040 /* at mark on input */ - -#define SS_PRIV 0x080 /* privileged for broadcast, raw... */ -#define SS_NBIO 0x100 /* non-blocking ops */ -#define SS_ASYNC 0x200 /* async i/o notify */ -#define SS_PIPE 0x400 /* pipe behavior for POSIX & SVID */ - - -/* - * Macros for sockets and socket buffering. - */ - -/* how much space is there in a socket buffer (so->so_snd or so->so_rcv) */ -#define sbspace(sb) \ - (MIN((int)((sb)->sb_hiwat - (sb)->sb_cc),\ - (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) - -/* do we have to send all at once on a socket? */ -#define sosendallatonce(so) \ - ((so)->so_proto->pr_flags & PR_ATOMIC) - -/* can we read something from so? */ -#define soreadable(so) \ - ((so)->so_rcv.sb_cc || ((so)->so_state & SS_CANTRCVMORE) || \ - (so)->so_qlen || (so)->so_error) - -/* can we write something to so? */ -#define sowriteable(so) \ - (sbspace(&(so)->so_snd) > 0 && \ - (((so)->so_state&SS_ISCONNECTED) || \ - ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0) || \ - ((so)->so_state & SS_CANTSENDMORE) || \ - (so)->so_error) - -/* adjust counters in sb reflecting allocation of m */ -#define sballoc(sb, m) { \ - (sb)->sb_cc += (m)->m_len; \ - (sb)->sb_mbcnt += MSIZE; \ - if ((m)->m_off > MMAXOFF) \ - (sb)->sb_mbcnt += MCLBYTES; \ -} - -/* adjust counters in sb reflecting freeing of m */ -#define sbfree(sb, m) { \ - (sb)->sb_cc -= (m)->m_len; \ - (sb)->sb_mbcnt -= MSIZE; \ - if ((m)->m_off > MMAXOFF) \ - (sb)->sb_mbcnt -= MCLBYTES; \ -} - -/* set lock on sockbuf sb */ -#define sblock(so, sb) { \ - while ((sb)->sb_flags & SB_LOCK) { \ - (sb)->sb_flags |= SB_WANT; \ - (void) sleep((caddr_t)&(sb)->sb_flags, PZERO+1); \ - } \ - (sb)->sb_flags |= SB_LOCK; \ -} - -/* release lock on sockbuf sb */ -#define sbunlock(so, sb) { \ - (sb)->sb_flags &= ~SB_LOCK; \ - if ((sb)->sb_flags & SB_WANT) { \ - (sb)->sb_flags &= ~SB_WANT; \ - if ((so)->so_wupalt) \ - (*(so)->so_wupalt->wup_func)(so, \ - (caddr_t)&(sb)->sb_flags, \ - (so)->so_wupalt->wup_arg);\ - else \ - wakeup((caddr_t)&(sb)->sb_flags); \ - } \ -} - -#define sorwakeup(so) sowakeup((so), &(so)->so_rcv) -#define sowwakeup(so) sowakeup((so), &(so)->so_snd) - -#ifdef KERNEL -struct socket *sonewconn(); -#endif - -#endif /*!_sys_socketvar_h*/ |