f0a75d274a
ZFS file system was ported from OpenSolaris operating system. The code in under CDDL license. I'd like to thank all SUN developers that created this great piece of software. Supported by: Wheel LTD (http://www.wheel.pl/) Supported by: The FreeBSD Foundation (http://www.freebsdfoundation.org/) Supported by: Sentex (http://www.sentex.net/)
124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License, Version 1.0 only
|
|
* (the "License"). You may not use this file except in compliance
|
|
* with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
|
|
/* All Rights Reserved */
|
|
|
|
/*
|
|
* Portions of this source code were derived from Berkeley 4.3 BSD
|
|
* under license from the Regents of the University of California.
|
|
*/
|
|
|
|
#ifndef _OPENSOLARIS_RPC_XDR_H_
|
|
#define _OPENSOLARIS_RPC_XDR_H_
|
|
|
|
#include_next <rpc/xdr.h>
|
|
|
|
#ifndef _KERNEL
|
|
#include_next <rpc/xdr.h>
|
|
|
|
/*
|
|
* Strangely, my glibc version (2.3.6) doesn't have xdr_control(), so
|
|
* we have to hack it in here (source taken from OpenSolaris).
|
|
* By the way, it is assumed the xdrmem implementation is used.
|
|
*/
|
|
|
|
#undef xdr_control
|
|
#define xdr_control(a,b,c) xdrmem_control(a,b,c)
|
|
|
|
/*
|
|
* These are XDR control operators
|
|
*/
|
|
|
|
#define XDR_GET_BYTES_AVAIL 1
|
|
|
|
struct xdr_bytesrec {
|
|
bool_t xc_is_last_record;
|
|
size_t xc_num_avail;
|
|
};
|
|
|
|
typedef struct xdr_bytesrec xdr_bytesrec;
|
|
|
|
/*
|
|
* These are the request arguments to XDR_CONTROL.
|
|
*
|
|
* XDR_PEEK - returns the contents of the next XDR unit on the XDR stream.
|
|
* XDR_SKIPBYTES - skips the next N bytes in the XDR stream.
|
|
* XDR_RDMAGET - for xdr implementation over RDMA, gets private flags from
|
|
* the XDR stream being moved over RDMA
|
|
* XDR_RDMANOCHUNK - for xdr implementaion over RDMA, sets private flags in
|
|
* the XDR stream moving over RDMA.
|
|
*/
|
|
#define XDR_PEEK 2
|
|
#define XDR_SKIPBYTES 3
|
|
#define XDR_RDMAGET 4
|
|
#define XDR_RDMASET 5
|
|
|
|
/* FIXME: probably doesn't work */
|
|
static __inline bool_t
|
|
xdrmem_control(XDR *xdrs, int request, void *info)
|
|
{
|
|
xdr_bytesrec *xptr;
|
|
int32_t *int32p;
|
|
int len;
|
|
|
|
switch (request) {
|
|
|
|
case XDR_GET_BYTES_AVAIL:
|
|
xptr = (xdr_bytesrec *)info;
|
|
xptr->xc_is_last_record = TRUE;
|
|
xptr->xc_num_avail = xdrs->x_handy;
|
|
return (TRUE);
|
|
|
|
case XDR_PEEK:
|
|
/*
|
|
* Return the next 4 byte unit in the XDR stream.
|
|
*/
|
|
if (xdrs->x_handy < sizeof (int32_t))
|
|
return (FALSE);
|
|
int32p = (int32_t *)info;
|
|
*int32p = (int32_t)ntohl((uint32_t)
|
|
(*((int32_t *)(xdrs->x_private))));
|
|
return (TRUE);
|
|
|
|
case XDR_SKIPBYTES:
|
|
/*
|
|
* Skip the next N bytes in the XDR stream.
|
|
*/
|
|
int32p = (int32_t *)info;
|
|
len = RNDUP((int)(*int32p));
|
|
if ((xdrs->x_handy -= len) < 0)
|
|
return (FALSE);
|
|
xdrs->x_private += len;
|
|
return (TRUE);
|
|
|
|
}
|
|
return (FALSE);
|
|
}
|
|
#endif /* !_KERNEL */
|
|
|
|
#endif /* !_OPENSOLARIS_RPC_XDR_H_ */
|