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 (at) gmail.com> 25 */ 26 #ifndef RBO_H 27 #define RBO_H 28 29 #include "util_double_list.h" 30 31 struct 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 42 struct rbo *rbo(int fd, unsigned handle, unsigned size, 43 unsigned alignment, void *ptr); 44 int rbo_map(struct rbo *bo); 45 void rbo_unmap(struct rbo *bo); 46 struct rbo *rbo_incref(struct rbo *bo); 47 struct rbo *rbo_decref(struct rbo *bo); 48 int rbo_wait(struct rbo *bo); 49 50 #endif 51
