lib/libspl/include/rpc/xdr.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  *
  22  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  *
  25  *      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
  26  *        All Rights Reserved
  27  *
  28  * Portions of this source code were derived from Berkeley 4.3 BSD
  29  * under license from the Regents of the University of California.
  30  */
  31
  32 #ifndef LIBSPL_RPC_XDR_H
  33 #define LIBSPL_RPC_XDR_H
  34
  35 #include_next <rpc/xdr.h>
  36
  37 /*
  38  * These are XDR control operators
  39  */
  40
  41 #define XDR_GET_BYTES_AVAIL 1
  42
  43 typedef struct xdr_bytesrec {
  44         bool_t xc_is_last_record;
  45         size_t xc_num_avail;
  46 } xdr_bytesrec_t;
  47
  48 /*
  49  * These are the request arguments to XDR_CONTROL.
  50  *
  51  * XDR_PEEK - returns the contents of the next XDR unit on the XDR stream.
  52  * XDR_SKIPBYTES - skips the next N bytes in the XDR stream.
  53  * XDR_RDMAGET - for xdr implementation over RDMA, gets private flags from
  54  *               the XDR stream being moved over RDMA
  55  * XDR_RDMANOCHUNK - for xdr implementaion over RDMA, sets private flags in
  56  *                   the XDR stream moving over RDMA.
  57  */
  58 #define XDR_PEEK        2
  59 #define XDR_SKIPBYTES   3
  60 #define XDR_RDMAGET     4
  61 #define XDR_RDMASET     5
  62
  63 extern bool_t xdr_control(XDR *xdrs, int request, void *info);
  64
  65 #endif