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aaaa20b6 VSO |
1 | /* |
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 */ | |
32 | typedef struct BdrvPollCo { | |
0582fb82 | 33 | AioContext *ctx; |
aaaa20b6 | 34 | bool in_progress; |
aaaa20b6 VSO |
35 | Coroutine *co; /* Keep pointer here for debugging */ |
36 | } BdrvPollCo; | |
37 | ||
6700dfb1 | 38 | static inline void bdrv_poll_co(BdrvPollCo *s) |
aaaa20b6 VSO |
39 | { |
40 | assert(!qemu_in_coroutine()); | |
41 | ||
0582fb82 EGE |
42 | aio_co_enter(s->ctx, s->co); |
43 | AIO_WAIT_WHILE(s->ctx, s->in_progress); | |
aaaa20b6 VSO |
44 | } |
45 | ||
46 | #endif /* BLOCK_BLOCK_GEN_H */ |