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fixed aio emulation 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2099 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-08-07 19:10:16 +00:00
parent ce1a14dc0d
commit 90765429aa
1 changed files with 7 additions and 8 deletions
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15
block.c
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@ -35,6 +35,12 @@
#define SECTOR_BITS 9
#define SECTOR_SIZE (1 << SECTOR_BITS)
typedef struct BlockDriverAIOCBSync {
BlockDriverAIOCB common;
QEMUBH *bh;
int ret;
} BlockDriverAIOCBSync;
static BlockDriverAIOCB *bdrv_aio_read_em(BlockDriverState *bs,
int64_t sector_num, uint8_t *buf, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque);
@ -111,6 +117,7 @@ void bdrv_register(BlockDriver *bdrv)
bdrv->bdrv_aio_read = bdrv_aio_read_em;
bdrv->bdrv_aio_write = bdrv_aio_write_em;
bdrv->bdrv_aio_cancel = bdrv_aio_cancel_em;
bdrv->aiocb_size = sizeof(BlockDriverAIOCBSync);
} else if (!bdrv->bdrv_read && !bdrv->bdrv_pread) {
/* add synchronous IO emulation layer */
bdrv->bdrv_read = bdrv_read_em;
@ -1061,14 +1068,6 @@ static void bdrv_aio_cancel_em(BlockDriverAIOCB *acb)
{
}
#else
typedef struct BlockDriverAIOCBSync {
BlockDriverAIOCB common;
QEMUBH *bh;
int ret;
} BlockDriverAIOCBSync;
static BlockDriverAIOCBSync *free_acb = NULL;
static void bdrv_aio_bh_cb(void *opaque)
{
BlockDriverAIOCBSync *acb = opaque;