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15#ifndef QEMU_RAW_AIO_H
16#define QEMU_RAW_AIO_H
17
18#include "qemu/iov.h"
19
20
21#define QEMU_AIO_READ 0x0001
22#define QEMU_AIO_WRITE 0x0002
23#define QEMU_AIO_IOCTL 0x0004
24#define QEMU_AIO_FLUSH 0x0008
25#define QEMU_AIO_DISCARD 0x0010
26#define QEMU_AIO_WRITE_ZEROES 0x0020
27#define QEMU_AIO_TYPE_MASK \
28 (QEMU_AIO_READ|QEMU_AIO_WRITE|QEMU_AIO_IOCTL|QEMU_AIO_FLUSH| \
29 QEMU_AIO_DISCARD|QEMU_AIO_WRITE_ZEROES)
30
31
32#define QEMU_AIO_MISALIGNED 0x1000
33#define QEMU_AIO_BLKDEV 0x2000
34
35
36
37#ifdef CONFIG_LINUX_AIO
38void *laio_init(void);
39void laio_cleanup(void *s);
40BlockAIOCB *laio_submit(BlockDriverState *bs, void *aio_ctx, int fd,
41 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
42 BlockCompletionFunc *cb, void *opaque, int type);
43void laio_detach_aio_context(void *s, AioContext *old_context);
44void laio_attach_aio_context(void *s, AioContext *new_context);
45void laio_io_plug(BlockDriverState *bs, void *aio_ctx);
46void laio_io_unplug(BlockDriverState *bs, void *aio_ctx, bool unplug);
47#endif
48
49#ifdef _WIN32
50typedef struct QEMUWin32AIOState QEMUWin32AIOState;
51QEMUWin32AIOState *win32_aio_init(void);
52void win32_aio_cleanup(QEMUWin32AIOState *aio);
53int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile);
54BlockAIOCB *win32_aio_submit(BlockDriverState *bs,
55 QEMUWin32AIOState *aio, HANDLE hfile,
56 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
57 BlockCompletionFunc *cb, void *opaque, int type);
58void win32_aio_detach_aio_context(QEMUWin32AIOState *aio,
59 AioContext *old_context);
60void win32_aio_attach_aio_context(QEMUWin32AIOState *aio,
61 AioContext *new_context);
62#endif
63
64#endif
65