mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-25 12:40:08 +00:00
99cc598924
Each QEMUWin32AIOState event notifier is associated with an AioContext. Since BlockDriverState instances can use different AioContexts we cannot continue to use a global QEMUWin32AIOState. Let each BDRVRawState have its own QEMUWin32AIOState and free it when BDRVRawState is closed. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/*
|
|
* Declarations for AIO in the raw protocol
|
|
*
|
|
* Copyright IBM, Corp. 2008
|
|
*
|
|
* Authors:
|
|
* Anthony Liguori <aliguori@us.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
|
* the COPYING file in the top-level directory.
|
|
*
|
|
* Contributions after 2012-01-13 are licensed under the terms of the
|
|
* GNU GPL, version 2 or (at your option) any later version.
|
|
*/
|
|
#ifndef QEMU_RAW_AIO_H
|
|
#define QEMU_RAW_AIO_H
|
|
|
|
/* AIO request types */
|
|
#define QEMU_AIO_READ 0x0001
|
|
#define QEMU_AIO_WRITE 0x0002
|
|
#define QEMU_AIO_IOCTL 0x0004
|
|
#define QEMU_AIO_FLUSH 0x0008
|
|
#define QEMU_AIO_DISCARD 0x0010
|
|
#define QEMU_AIO_WRITE_ZEROES 0x0020
|
|
#define QEMU_AIO_TYPE_MASK \
|
|
(QEMU_AIO_READ|QEMU_AIO_WRITE|QEMU_AIO_IOCTL|QEMU_AIO_FLUSH| \
|
|
QEMU_AIO_DISCARD|QEMU_AIO_WRITE_ZEROES)
|
|
|
|
/* AIO flags */
|
|
#define QEMU_AIO_MISALIGNED 0x1000
|
|
#define QEMU_AIO_BLKDEV 0x2000
|
|
|
|
|
|
/* linux-aio.c - Linux native implementation */
|
|
#ifdef CONFIG_LINUX_AIO
|
|
void *laio_init(void);
|
|
void laio_cleanup(void *s);
|
|
BlockDriverAIOCB *laio_submit(BlockDriverState *bs, void *aio_ctx, int fd,
|
|
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
|
|
BlockDriverCompletionFunc *cb, void *opaque, int type);
|
|
void laio_detach_aio_context(void *s, AioContext *old_context);
|
|
void laio_attach_aio_context(void *s, AioContext *new_context);
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
typedef struct QEMUWin32AIOState QEMUWin32AIOState;
|
|
QEMUWin32AIOState *win32_aio_init(void);
|
|
void win32_aio_cleanup(QEMUWin32AIOState *aio);
|
|
int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile);
|
|
BlockDriverAIOCB *win32_aio_submit(BlockDriverState *bs,
|
|
QEMUWin32AIOState *aio, HANDLE hfile,
|
|
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
|
|
BlockDriverCompletionFunc *cb, void *opaque, int type);
|
|
#endif
|
|
|
|
#endif /* QEMU_RAW_AIO_H */
|