projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 9ef91a67 | 1 | /* |
| 9f8540ec | 2 | * Declarations for AIO in the raw protocol |
| 9ef91a67 CH |
3 | * |
| 4 | * Copyright IBM, Corp. 2008 | |
| 5 | * | |
| 6 | * Authors: | |
| 7 | * Anthony Liguori <aliguori@us.ibm.com> | |
| 8 | * | |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
| 10 | * the COPYING file in the top-level directory. | |
| 11 | * | |
| 6b620ca3 PB |
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. | |
| 9ef91a67 | 14 | */ |
| 9f8540ec PB |
15 | #ifndef QEMU_RAW_AIO_H |
| 16 | #define QEMU_RAW_AIO_H | |
| 9ef91a67 CH |
17 | |
| 18 | /* AIO request types */ | |
| 19 | #define QEMU_AIO_READ 0x0001 | |
| 20 | #define QEMU_AIO_WRITE 0x0002 | |
| 21 | #define QEMU_AIO_IOCTL 0x0004 | |
| b2e12bc6 | 22 | #define QEMU_AIO_FLUSH 0x0008 |
| 8238010b | 23 | #define QEMU_AIO_DISCARD 0x0010 |
| 9ef91a67 | 24 | #define QEMU_AIO_TYPE_MASK \ |
| 8238010b PB |
25 | (QEMU_AIO_READ|QEMU_AIO_WRITE|QEMU_AIO_IOCTL|QEMU_AIO_FLUSH| \ |
| 26 | QEMU_AIO_DISCARD) | |
| 9ef91a67 CH |
27 | |
| 28 | /* AIO flags */ | |
| 29 | #define QEMU_AIO_MISALIGNED 0x1000 | |
| 8238010b | 30 | #define QEMU_AIO_BLKDEV 0x2000 |
| 9ef91a67 CH |
31 | |
| 32 | ||
| 5c6c3a6c | 33 | /* linux-aio.c - Linux native implementation */ |
| 9f8540ec | 34 | #ifdef CONFIG_LINUX_AIO |
| 5c6c3a6c CH |
35 | void *laio_init(void); |
| 36 | BlockDriverAIOCB *laio_submit(BlockDriverState *bs, void *aio_ctx, int fd, | |
| 37 | int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, | |
| 38 | BlockDriverCompletionFunc *cb, void *opaque, int type); | |
| 9f8540ec | 39 | #endif |
| 5c6c3a6c | 40 | |
| a2736526 PB |
41 | #ifdef _WIN32 |
| 42 | typedef struct QEMUWin32AIOState QEMUWin32AIOState; | |
| 43 | QEMUWin32AIOState *win32_aio_init(void); | |
| 44 | int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile); | |
| 45 | BlockDriverAIOCB *win32_aio_submit(BlockDriverState *bs, | |
| 46 | QEMUWin32AIOState *aio, HANDLE hfile, | |
| 47 | int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, | |
| 48 | BlockDriverCompletionFunc *cb, void *opaque, int type); | |
| 49 | #endif | |
| 50 | ||
| 9f8540ec | 51 | #endif /* QEMU_RAW_AIO_H */ |