Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/sys/sys/socketvar.h,v
rcsdiff: /ftp/cvs/cvsroot/src/sys/sys/socketvar.h,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.51
retrieving revision 1.51.2.1
diff -u -p -r1.51 -r1.51.2.1
--- src/sys/sys/socketvar.h	2002/05/02 17:55:52	1.51
+++ src/sys/sys/socketvar.h	2002/07/15 10:37:16	1.51.2.1
@@ -1,4 +1,4 @@
-/*	$NetBSD: socketvar.h,v 1.51 2002/05/02 17:55:52 thorpej Exp $	*/
+/*	$NetBSD: socketvar.h,v 1.51.2.1 2002/07/15 10:37:16 gehenna Exp $	*/
 
 /*-
  * Copyright (c) 1982, 1986, 1990, 1993
@@ -93,6 +93,9 @@ struct socket {
 		u_long	sb_mbmax;	/* max chars of mbufs to use */
 		long	sb_lowat;	/* low water mark */
 		struct mbuf *sb_mb;	/* the mbuf chain */
+		struct mbuf *sb_mbtail;	/* the last mbuf in the chain */
+		struct mbuf *sb_lastrecord;/* first mbuf of last record in
+					      socket buffer */
 		struct selinfo sb_sel;	/* process selecting read/write */
 		short	sb_flags;	/* flags, see below */
 		short	sb_timeo;	/* timeout for read/write */
@@ -125,6 +128,14 @@ struct socket {
 	struct mbuf	*so_pendfree;	/* loaned-page mbufs w/ frees pending */
 };
 
+#define	SB_EMPTY_FIXUP(sb)						\
+do {									\
+	if ((sb)->sb_mb == NULL) {					\
+		(sb)->sb_mbtail = NULL;					\
+		(sb)->sb_lastrecord = NULL;				\
+	}								\
+} while (/*CONSTCOND*/0)
+
 /*
  * Socket state bits.
  */
@@ -266,6 +277,7 @@ int	uipc_usrreq(struct socket *, int , s
 	    struct mbuf *, struct mbuf *, struct proc *);
 int	uipc_ctloutput(int, struct socket *, int, int, struct mbuf **);
 void	sbappend(struct sockbuf *sb, struct mbuf *m);
+void	sbappendstream(struct sockbuf *sb, struct mbuf *m);
 int	sbappendaddr(struct sockbuf *sb, struct sockaddr *asa,
 	    struct mbuf *m0, struct mbuf *control);
 int	sbappendcontrol(struct sockbuf *sb, struct mbuf *m0,
@@ -320,6 +332,17 @@ int	sockargs(struct mbuf **, const void 
 int	sendit(struct proc *, int, struct msghdr *, int, register_t *);
 int	recvit(struct proc *, int, struct msghdr *, caddr_t, register_t *);
 
+#ifdef SOCKBUF_DEBUG
+void	sblastrecordchk(struct sockbuf *, const char *);
+#define	SBLASTRECORDCHK(sb, where)	sblastrecordchk((sb), (where))
+
+void	sblastmbufchk(struct sockbuf *, const char *);
+#define	SBLASTMBUFCHK(sb, where)	sblastmbufchk((sb), (where))
+#else
+#define	SBLASTRECORDCHK(sb, where)	/* nothing */
+#define	SBLASTMBUFCHK(sb, where)	/* nothing */
+#endif /* SOCKBUF_DEBUG */
+
 #endif /* _KERNEL */
 
 #endif /* !_SYS_SOCKETVAR_H_ */