1 /*
2  * QEMU block throttling group infrastructure
3  *
4  * Copyright (C) Nodalink, EURL. 2014
5  * Copyright (C) Igalia, S.L. 2015
6  *
7  * Authors:
8  *   Benoît Canet <benoit.canet@nodalink.com>
9  *   Alberto Garcia <berto@igalia.com>
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License as
13  * published by the Free Software Foundation; either version 2 or
14  * (at your option) version 3 of the License.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, see <http://www.gnu.org/licenses/>.
23  */
24 
25 #ifndef THROTTLE_GROUPS_H
26 #define THROTTLE_GROUPS_H
27 
28 #include "qemu/throttle.h"
29 #include "block/block_int.h"
30 
31 const char *throttle_group_get_name(BlockDriverState *bs);
32 
33 ThrottleState *throttle_group_incref(const char *name);
34 void throttle_group_unref(ThrottleState *ts);
35 
36 void throttle_group_config(BlockDriverState *bs, ThrottleConfig *cfg);
37 void throttle_group_get_config(BlockDriverState *bs, ThrottleConfig *cfg);
38 
39 void throttle_group_register_bs(BlockDriverState *bs, const char *groupname);
40 void throttle_group_unregister_bs(BlockDriverState *bs);
41 
42 void coroutine_fn throttle_group_co_io_limits_intercept(BlockDriverState *bs,
43                                                         unsigned int bytes,
44                                                         bool is_write);
45 
46 #endif
47