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Add protoswitch entries for shortcut send/receive. Correct

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a few misleading comments, and move allthe struct tag
forward declarations to be in one place.
This commit is contained in:
Garrett Wollman 1997-03-14 16:51:28 +00:00
parent 9efe2eccdd
commit 7b187005d1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=23888
1 changed files with 20 additions and 8 deletions
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28
sys/sys/protosw.h
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@ -31,16 +31,20 @@
* SUCH DAMAGE.
*
* @(#)protosw.h 8.1 (Berkeley) 6/2/93
* $Id$
* $Id: protosw.h,v 1.15 1997/02/22 09:45:42 peter Exp $
*/
#ifndef _SYS_PROTOSW_H_
#define _SYS_PROTOSW_H_
/* Forward declare these structures referenced from prototypes below. */
struct ifnet;
struct mbuf;
struct sockaddr;
struct socket;
struct sockproto;
struct stat;
struct uio;
/*
* Protocol switch table.
@ -165,11 +169,12 @@ char *prurequests[] = {
#endif
#ifdef KERNEL /* users shouldn't see this decl */
struct stat;
struct ifnet;
/*
* If the ordering here looks odd, that's because it's alphabetical.
* Having this structure separated out from the main protoswitch is actually
* a big (12 cycles per call) lose on high-end CPUs. We will eventually
* migrate this stuff back into the main structure.
*/
struct pr_usrreqs {
int (*pru_abort) __P((struct socket *so));
@ -187,11 +192,6 @@ struct pr_usrreqs {
int (*pru_rcvd) __P((struct socket *so, int flags));
int (*pru_rcvoob) __P((struct socket *so, struct mbuf *m,
int flags));
/*
* The `m' parameter here is almost certainly going to become a
* `struct uio' at some point in the future. Similar changes
* will probably happen for the receive entry points.
*/
int (*pru_send) __P((struct socket *so, int flags, struct mbuf *m,
struct mbuf *addr, struct mbuf *control));
#define PRUS_OOB 0x1
@ -199,6 +199,18 @@ struct pr_usrreqs {
int (*pru_sense) __P((struct socket *so, struct stat *sb));
int (*pru_shutdown) __P((struct socket *so));
int (*pru_sockaddr) __P((struct socket *so, struct mbuf *nam));
/*
* These two added later, so they are out of order. They are used
* for shortcutting (fast path input/output) in some protocols.
* XXX - that's a lie, they are not implemented yet
*/
int (*pru_sosend) __P((struct socket *so, struct mbuf *addr,
struct uio *uio, struct mbuf *top,
struct mbuf *control, int flags));
int (*pru_soreceive) __P((struct socket *so, struct mbuf **paddr,
struct uio *uio, struct mbuf **mp0,
struct mbuf **controlp, int *flagsp));
};
int pru_accept_notsupp __P((struct socket *so, struct mbuf *nam));