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/*-
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)socketvar.h 8.3 (Berkeley) 2/19/95
*
* $FreeBSD$
*/
#ifndef _SYS_SOCKTATE_H_
#define _SYS_SOCKTATE_H_
/*
* Socket state bits.
*
* Historically, this bits were all kept in the so_state field. For
* locking reasons, they are now in multiple fields, as they are
* locked differently. so_state maintains basic socket state protected
* by the socket lock. so_qstate holds information about the socket
* accept queues. Each socket buffer also has a state field holding
* information relevant to that socket buffer (can't send, rcv). Many
* fields will be read without locks to improve performance and avoid
* lock order issues. However, this approach must be used with caution.
*/
#define SS_NOFDREF 0x0001 /* no file table ref any more */
#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */
#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */
#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */
#define SS_NBIO 0x0100 /* non-blocking ops */
#define SS_ASYNC 0x0200 /* async i/o notify */
#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */
#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */
/*
* Protocols can mark a socket as SS_PROTOREF to indicate that, following
* pru_detach, they still want the socket to persist, and will free it
* themselves when they are done. Protocols should only ever call sofree()
* following setting this flag in pru_detach(), and never otherwise, as
* sofree() bypasses socket reference counting.
*/
#define SS_PROTOREF 0x4000 /* strong protocol reference */
/*
* Socket state bits now stored in the socket buffer state field.
*/
#define SBS_CANTSENDMORE 0x0010 /* can't send more data to peer */
#define SBS_CANTRCVMORE 0x0020 /* can't receive more data from peer */
#define SBS_RCVATMARK 0x0040 /* at mark on input */
struct socket;
void soisconnected(struct socket *so);
void soisconnecting(struct socket *so);
void soisdisconnected(struct socket *so);
void soisdisconnecting(struct socket *so);
void socantrcvmore(struct socket *so);
void socantrcvmore_locked(struct socket *so);
void socantsendmore(struct socket *so);
void socantsendmore_locked(struct socket *so);
#endif /* _SYS_SOCKTATE_H_ */
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