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