diff options
Diffstat (limited to 'vl.h')
| -rw-r--r-- | vl.h | 58 |
1 files changed, 56 insertions, 2 deletions
@@ -481,6 +481,16 @@ void qemu_put_timer(QEMUFile *f, QEMUTimer *ts); void cpu_save(QEMUFile *f, void *opaque); int cpu_load(QEMUFile *f, void *opaque, int version_id); +/* bottom halves */ +typedef struct QEMUBH QEMUBH; +typedef void QEMUBHFunc(void *opaque); + +QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque); +void qemu_bh_schedule(QEMUBH *bh); +void qemu_bh_cancel(QEMUBH *bh); +void qemu_bh_delete(QEMUBH *bh); +void qemu_bh_poll(void); + /* block.c */ typedef struct BlockDriverState BlockDriverState; typedef struct BlockDriver BlockDriver; @@ -495,6 +505,16 @@ extern BlockDriver bdrv_bochs; extern BlockDriver bdrv_vpc; extern BlockDriver bdrv_vvfat; +#define BDRV_O_RDONLY 0x0000 +#define BDRV_O_RDWR 0x0002 +#define BDRV_O_ACCESS 0x0003 +#define BDRV_O_CREAT 0x0004 /* create an empty file */ +#define BDRV_O_SNAPSHOT 0x0008 /* open the file read only and save writes in a snapshot */ +#define BDRV_O_FILE 0x0010 /* open as a raw file (do not try to + use a disk image format on top of + it (default for + bdrv_file_open()) */ + void bdrv_init(void); BlockDriver *bdrv_find_format(const char *format_name); int bdrv_create(BlockDriver *drv, @@ -502,17 +522,44 @@ int bdrv_create(BlockDriver *drv, const char *backing_file, int flags); BlockDriverState *bdrv_new(const char *device_name); void bdrv_delete(BlockDriverState *bs); -int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot); -int bdrv_open2(BlockDriverState *bs, const char *filename, int snapshot, +int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags); +int bdrv_open(BlockDriverState *bs, const char *filename, int flags); +int bdrv_open2(BlockDriverState *bs, const char *filename, int flags, BlockDriver *drv); void bdrv_close(BlockDriverState *bs); int bdrv_read(BlockDriverState *bs, int64_t sector_num, uint8_t *buf, int nb_sectors); int bdrv_write(BlockDriverState *bs, int64_t sector_num, const uint8_t *buf, int nb_sectors); +int bdrv_pread(BlockDriverState *bs, int64_t offset, + void *buf, int count); +int bdrv_pwrite(BlockDriverState *bs, int64_t offset, + const void *buf, int count); +int bdrv_truncate(BlockDriverState *bs, int64_t offset); +int64_t bdrv_getlength(BlockDriverState *bs); void bdrv_get_geometry(BlockDriverState *bs, int64_t *nb_sectors_ptr); int bdrv_commit(BlockDriverState *bs); void bdrv_set_boot_sector(BlockDriverState *bs, const uint8_t *data, int size); +/* async block I/O */ +typedef struct BlockDriverAIOCB BlockDriverAIOCB; +typedef void BlockDriverCompletionFunc(void *opaque, int ret); + +BlockDriverAIOCB *bdrv_aio_new(BlockDriverState *bs); +int bdrv_aio_read(BlockDriverAIOCB *acb, int64_t sector_num, + uint8_t *buf, int nb_sectors, + BlockDriverCompletionFunc *cb, void *opaque); +int bdrv_aio_write(BlockDriverAIOCB *acb, int64_t sector_num, + const uint8_t *buf, int nb_sectors, + BlockDriverCompletionFunc *cb, void *opaque); +void bdrv_aio_cancel(BlockDriverAIOCB *acb); +void bdrv_aio_delete(BlockDriverAIOCB *acb); + +void qemu_aio_init(void); +void qemu_aio_poll(void); +void qemu_aio_wait_start(void); +void qemu_aio_wait(void); +void qemu_aio_wait_end(void); + /* Ensure contents are flushed to disk. */ void bdrv_flush(BlockDriverState *bs); @@ -551,6 +598,13 @@ const char *bdrv_get_device_name(BlockDriverState *bs); int qcow_get_cluster_size(BlockDriverState *bs); int qcow_compress_cluster(BlockDriverState *bs, int64_t sector_num, const uint8_t *buf); +void bdrv_get_backing_filename(BlockDriverState *bs, + char *filename, int filename_size); + +int path_is_absolute(const char *path); +void path_combine(char *dest, int dest_size, + const char *base_path, + const char *filename); #ifndef QEMU_TOOL |