.travis.yml: stop requesting libffi & gettext from homebrew
[qemu/ar7.git] / include / block / raw-aio.h
blob6799614e56562d63ad66c14b9e8baa9e6ebd9aeb
1 /*
2 * Declarations for AIO in the raw protocol
4 * Copyright IBM, Corp. 2008
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
12 * Contributions after 2012-01-13 are licensed under the terms of the
13 * GNU GPL, version 2 or (at your option) any later version.
15 #ifndef QEMU_RAW_AIO_H
16 #define QEMU_RAW_AIO_H
18 #include "qemu/coroutine.h"
19 #include "qemu/iov.h"
21 /* AIO request types */
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_COPY_RANGE 0x0040
29 #define QEMU_AIO_TRUNCATE 0x0080
30 #define QEMU_AIO_TYPE_MASK \
31 (QEMU_AIO_READ | \
32 QEMU_AIO_WRITE | \
33 QEMU_AIO_IOCTL | \
34 QEMU_AIO_FLUSH | \
35 QEMU_AIO_DISCARD | \
36 QEMU_AIO_WRITE_ZEROES | \
37 QEMU_AIO_COPY_RANGE | \
38 QEMU_AIO_TRUNCATE)
40 /* AIO flags */
41 #define QEMU_AIO_MISALIGNED 0x1000
42 #define QEMU_AIO_BLKDEV 0x2000
45 /* linux-aio.c - Linux native implementation */
46 #ifdef CONFIG_LINUX_AIO
47 typedef struct LinuxAioState LinuxAioState;
48 LinuxAioState *laio_init(Error **errp);
49 void laio_cleanup(LinuxAioState *s);
50 int coroutine_fn laio_co_submit(BlockDriverState *bs, LinuxAioState *s, int fd,
51 uint64_t offset, QEMUIOVector *qiov, int type);
52 BlockAIOCB *laio_submit(BlockDriverState *bs, LinuxAioState *s, int fd,
53 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
54 BlockCompletionFunc *cb, void *opaque, int type);
55 void laio_detach_aio_context(LinuxAioState *s, AioContext *old_context);
56 void laio_attach_aio_context(LinuxAioState *s, AioContext *new_context);
57 void laio_io_plug(BlockDriverState *bs, LinuxAioState *s);
58 void laio_io_unplug(BlockDriverState *bs, LinuxAioState *s);
59 #endif
61 #ifdef _WIN32
62 typedef struct QEMUWin32AIOState QEMUWin32AIOState;
63 QEMUWin32AIOState *win32_aio_init(void);
64 void win32_aio_cleanup(QEMUWin32AIOState *aio);
65 int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile);
66 BlockAIOCB *win32_aio_submit(BlockDriverState *bs,
67 QEMUWin32AIOState *aio, HANDLE hfile,
68 uint64_t offset, uint64_t bytes, QEMUIOVector *qiov,
69 BlockCompletionFunc *cb, void *opaque, int type);
70 void win32_aio_detach_aio_context(QEMUWin32AIOState *aio,
71 AioContext *old_context);
72 void win32_aio_attach_aio_context(QEMUWin32AIOState *aio,
73 AioContext *new_context);
74 #endif
76 #endif /* QEMU_RAW_AIO_H */