51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/*
|
|
* Copyright © 2011 Red Hat
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Jerome Glisse <j.glisse@gmail.com>
|
|
*/
|
|
#ifndef RBO_H
|
|
#define RBO_H
|
|
|
|
#include "util_double_list.h"
|
|
|
|
struct rbo {
|
|
struct list_head list;
|
|
int fd;
|
|
unsigned refcount;
|
|
unsigned mapcount;
|
|
unsigned handle;
|
|
unsigned size;
|
|
unsigned alignment;
|
|
void *data;
|
|
};
|
|
|
|
struct rbo *rbo(int fd, unsigned handle, unsigned size,
|
|
unsigned alignment, void *ptr);
|
|
int rbo_map(struct rbo *bo);
|
|
void rbo_unmap(struct rbo *bo);
|
|
struct rbo *rbo_incref(struct rbo *bo);
|
|
struct rbo *rbo_decref(struct rbo *bo);
|
|
int rbo_wait(struct rbo *bo);
|
|
|
|
#endif
|