mirror of
https://github.com/qemu/qemu.git
synced 2025-01-10 23:53:26 +08:00
0582fb8293
Right now, we take the first parameter of the function to get the BlockDriverState to pass to bdrv_poll_co(), that internally calls functions that figure in which aiocontext the coroutine should run. However, it is useless to pass a bs just to get its own AioContext, so instead pass it directly, and default to the main loop if no BlockDriverState is passed as parameter. Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Message-Id: <20221128142337.657646-12-eesposit@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/*
|
|
* Block coroutine wrapping core, used by auto-generated block/block-gen.c
|
|
*
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
* Copyright (c) 2020 Virtuozzo International GmbH
|
|
*
|
|
* 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 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.
|
|
*/
|
|
|
|
#ifndef BLOCK_BLOCK_GEN_H
|
|
#define BLOCK_BLOCK_GEN_H
|
|
|
|
#include "block/block_int.h"
|
|
|
|
/* Base structure for argument packing structures */
|
|
typedef struct BdrvPollCo {
|
|
AioContext *ctx;
|
|
bool in_progress;
|
|
int ret;
|
|
Coroutine *co; /* Keep pointer here for debugging */
|
|
} BdrvPollCo;
|
|
|
|
static inline int bdrv_poll_co(BdrvPollCo *s)
|
|
{
|
|
assert(!qemu_in_coroutine());
|
|
|
|
aio_co_enter(s->ctx, s->co);
|
|
AIO_WAIT_WHILE(s->ctx, s->in_progress);
|
|
|
|
return s->ret;
|
|
}
|
|
|
|
#endif /* BLOCK_BLOCK_GEN_H */
|