/bsd/sys/sys/sockstate.h
C Header | 88 lines | 27 code | 7 blank | 54 comment | 0 complexity | e66ace0285c5c3df8ca4ca848748e84d MD5 | raw file
Possible License(s): BSD-3-Clause, 0BSD, MPL-2.0-no-copyleft-exception
- /*-
- * 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_
- #include <sys/cdefs.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;
- __BEGIN_DECLS
- 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);
- __END_DECLS
- #endif /* _SYS_SOCKTATE_H_ */