1/*
2 * Copyright © 2011 Red Hat
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Jerome Glisse <j.glisse@gmail.com>
25 */
26#ifndef RBO_H
27#define RBO_H
28
29#include "list.h"
30
31struct rbo {
32    struct list_head    list;
33    int                 fd;
34    unsigned            refcount;
35    unsigned            mapcount;
36    unsigned            handle;
37    unsigned            size;
38    unsigned            alignment;
39    void                *data;
40};
41
42struct rbo *rbo(int fd, unsigned handle, unsigned size,
43                unsigned alignment, void *ptr);
44int rbo_map(struct rbo *bo);
45void rbo_unmap(struct rbo *bo);
46struct rbo *rbo_incref(struct rbo *bo);
47struct rbo *rbo_decref(struct rbo *bo);
48int rbo_wait(struct rbo *bo);
49
50#endif
51