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15#ifndef QEMU_RAW_AIO_H
16#define QEMU_RAW_AIO_H
17
18#include "qemu/coroutine.h"
19#include "qemu/iov.h"
20
21
22#define QEMU_AIO_READ 0x0001
23#define QEMU_AIO_WRITE 0x0002
24#define QEMU_AIO_IOCTL 0x0004
25#define QEMU_AIO_FLUSH 0x0008
26#define QEMU_AIO_DISCARD 0x0010
27#define QEMU_AIO_WRITE_ZEROES 0x0020
28#define QEMU_AIO_TYPE_MASK \
29 (QEMU_AIO_READ|QEMU_AIO_WRITE|QEMU_AIO_IOCTL|QEMU_AIO_FLUSH| \
30 QEMU_AIO_DISCARD|QEMU_AIO_WRITE_ZEROES)
31
32
33#define QEMU_AIO_MISALIGNED 0x1000
34#define QEMU_AIO_BLKDEV 0x2000
35
36
37
38#ifdef CONFIG_LINUX_AIO
39typedef struct LinuxAioState LinuxAioState;
40LinuxAioState *laio_init(void);
41void laio_cleanup(LinuxAioState *s);
42int coroutine_fn laio_co_submit(BlockDriverState *bs, LinuxAioState *s, int fd,
43 uint64_t offset, QEMUIOVector *qiov, int type);
44BlockAIOCB *laio_submit(BlockDriverState *bs, LinuxAioState *s, int fd,
45 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
46 BlockCompletionFunc *cb, void *opaque, int type);
47void laio_detach_aio_context(LinuxAioState *s, AioContext *old_context);
48void laio_attach_aio_context(LinuxAioState *s, AioContext *new_context);
49void laio_io_plug(BlockDriverState *bs, LinuxAioState *s);
50void laio_io_unplug(BlockDriverState *bs, LinuxAioState *s);
51#endif
52
53#ifdef _WIN32
54typedef struct QEMUWin32AIOState QEMUWin32AIOState;
55QEMUWin32AIOState *win32_aio_init(void);
56void win32_aio_cleanup(QEMUWin32AIOState *aio);
57int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile);
58BlockAIOCB *win32_aio_submit(BlockDriverState *bs,
59 QEMUWin32AIOState *aio, HANDLE hfile,
60 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
61 BlockCompletionFunc *cb, void *opaque, int type);
62void win32_aio_detach_aio_context(QEMUWin32AIOState *aio,
63 AioContext *old_context);
64void win32_aio_attach_aio_context(QEMUWin32AIOState *aio,
65 AioContext *new_context);
66#endif
67
68#endif
69