2 * Copyright (c) 1995 - 2000, 2002, 2004 - 2006 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
45 typedef struct fbuf fbuf
;
47 typedef int (*fbuf_truncate_func
)(fbuf
*fbuf
, size_t new_len
);
53 fbuf_truncate_func truncate
; /* _not_ optional */
57 /* defauls for create and end, implementations roll their own */
59 int fbuf_create (fbuf
*fbuf
, NNPFS_FBUF_HANDLE fd
, size_t len
, fbuf_flags flags
);
61 int fbuf_create (fbuf
*fbuf
, int fd
, size_t len
, fbuf_flags flags
);
64 int fbuf_end (fbuf
*fbuf
);
66 /* the actual fbuf interface */
67 int fbuf_truncate (fbuf
*fbuf
, size_t new_len
);
68 size_t fbuf_len (fbuf
*f
);
69 void *fbuf_buf (fbuf
*f
);
72 int copyrx2fd (struct rx_call
*call
, int fd
, off_t off
, off_t len
);
73 int copyfd2rx (int fd
, struct rx_call
*call
, off_t off
, off_t len
);