blob: f80cf4897d115fdbbef9b5128b807a42d3700cec [file] [log] [blame]
Vladimir Sementsov-Ogievskiyaaaa20b2020-09-24 21:54:11 +03001/*
2 * Block coroutine wrapping core, used by auto-generated block/block-gen.c
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2020 Virtuozzo International GmbH
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25
26#ifndef BLOCK_BLOCK_GEN_H
27#define BLOCK_BLOCK_GEN_H
28
29#include "block/block_int.h"
30
31/* Base structure for argument packing structures */
32typedef struct BdrvPollCo {
33 BlockDriverState *bs;
34 bool in_progress;
35 int ret;
36 Coroutine *co; /* Keep pointer here for debugging */
37} BdrvPollCo;
38
39static inline int bdrv_poll_co(BdrvPollCo *s)
40{
41 assert(!qemu_in_coroutine());
42
43 bdrv_coroutine_enter(s->bs, s->co);
44 BDRV_POLL_WHILE(s->bs, s->in_progress);
45
46 return s->ret;
47}
48
49#endif /* BLOCK_BLOCK_GEN_H */