| #ifndef BLOCK_H |
| #define BLOCK_H |
| |
| /* block.c */ |
| typedef struct BlockDriver BlockDriver; |
| |
| extern BlockDriver bdrv_raw; |
| extern BlockDriver bdrv_host_device; |
| extern BlockDriver bdrv_cow; |
| extern BlockDriver bdrv_qcow; |
| extern BlockDriver bdrv_vmdk; |
| extern BlockDriver bdrv_cloop; |
| extern BlockDriver bdrv_dmg; |
| extern BlockDriver bdrv_bochs; |
| extern BlockDriver bdrv_vpc; |
| extern BlockDriver bdrv_vvfat; |
| extern BlockDriver bdrv_qcow2; |
| extern BlockDriver bdrv_parallels; |
| extern BlockDriver bdrv_nbd; |
| |
| typedef struct BlockDriverInfo { |
| /* in bytes, 0 if irrelevant */ |
| int cluster_size; |
| /* offset at which the VM state can be saved (0 if not possible) */ |
| int64_t vm_state_offset; |
| } BlockDriverInfo; |
| |
| typedef struct QEMUSnapshotInfo { |
| char id_str[128]; /* unique snapshot id */ |
| /* the following fields are informative. They are not needed for |
| the consistency of the snapshot */ |
| char name[256]; /* user choosen name */ |
| uint32_t vm_state_size; /* VM state info size */ |
| uint32_t date_sec; /* UTC date of the snapshot */ |
| uint32_t date_nsec; |
| uint64_t vm_clock_nsec; /* VM clock relative to boot */ |
| } QEMUSnapshotInfo; |
| |
| #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()) */ |
| #define BDRV_O_DIRECT 0x0020 |
| |
| void bdrv_info(void); |
| void bdrv_info_stats(void); |
| |
| void bdrv_init(void); |
| BlockDriver *bdrv_find_format(const char *format_name); |
| int bdrv_create(BlockDriver *drv, |
| const char *filename, int64_t size_in_sectors, |
| const char *backing_file, int flags); |
| BlockDriverState *bdrv_new(const char *device_name); |
| void bdrv_delete(BlockDriverState *bs); |
| 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, uint64_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_read(BlockDriverState *bs, int64_t sector_num, |
| uint8_t *buf, int nb_sectors, |
| BlockDriverCompletionFunc *cb, void *opaque); |
| BlockDriverAIOCB *bdrv_aio_write(BlockDriverState *bs, int64_t sector_num, |
| const uint8_t *buf, int nb_sectors, |
| BlockDriverCompletionFunc *cb, void *opaque); |
| void bdrv_aio_cancel(BlockDriverAIOCB *acb); |
| |
| void qemu_aio_init(void); |
| void qemu_aio_flush(void); |
| void qemu_aio_wait(void); |
| |
| int qemu_key_check(BlockDriverState *bs, const char *name); |
| |
| /* Ensure contents are flushed to disk. */ |
| void bdrv_flush(BlockDriverState *bs); |
| int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, |
| int *pnum); |
| |
| #define BDRV_TYPE_HD 0 |
| #define BDRV_TYPE_CDROM 1 |
| #define BDRV_TYPE_FLOPPY 2 |
| #define BIOS_ATA_TRANSLATION_AUTO 0 |
| #define BIOS_ATA_TRANSLATION_NONE 1 |
| #define BIOS_ATA_TRANSLATION_LBA 2 |
| #define BIOS_ATA_TRANSLATION_LARGE 3 |
| #define BIOS_ATA_TRANSLATION_RECHS 4 |
| |
| void bdrv_set_geometry_hint(BlockDriverState *bs, |
| int cyls, int heads, int secs); |
| void bdrv_set_type_hint(BlockDriverState *bs, int type); |
| void bdrv_set_translation_hint(BlockDriverState *bs, int translation); |
| void bdrv_get_geometry_hint(BlockDriverState *bs, |
| int *pcyls, int *pheads, int *psecs); |
| int bdrv_get_type_hint(BlockDriverState *bs); |
| int bdrv_get_translation_hint(BlockDriverState *bs); |
| int bdrv_is_removable(BlockDriverState *bs); |
| int bdrv_is_read_only(BlockDriverState *bs); |
| int bdrv_is_sg(BlockDriverState *bs); |
| int bdrv_is_inserted(BlockDriverState *bs); |
| int bdrv_media_changed(BlockDriverState *bs); |
| int bdrv_is_locked(BlockDriverState *bs); |
| void bdrv_set_locked(BlockDriverState *bs, int locked); |
| void bdrv_eject(BlockDriverState *bs, int eject_flag); |
| void bdrv_set_change_cb(BlockDriverState *bs, |
| void (*change_cb)(void *opaque), void *opaque); |
| void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size); |
| BlockDriverState *bdrv_find(const char *name); |
| void bdrv_iterate(void (*it)(void *opaque, const char *name), void *opaque); |
| int bdrv_is_encrypted(BlockDriverState *bs); |
| int bdrv_set_key(BlockDriverState *bs, const char *key); |
| void bdrv_iterate_format(void (*it)(void *opaque, const char *name), |
| void *opaque); |
| const char *bdrv_get_device_name(BlockDriverState *bs); |
| int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num, |
| const uint8_t *buf, int nb_sectors); |
| int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi); |
| |
| void bdrv_get_backing_filename(BlockDriverState *bs, |
| char *filename, int filename_size); |
| int bdrv_snapshot_create(BlockDriverState *bs, |
| QEMUSnapshotInfo *sn_info); |
| int bdrv_snapshot_goto(BlockDriverState *bs, |
| const char *snapshot_id); |
| int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id); |
| int bdrv_snapshot_list(BlockDriverState *bs, |
| QEMUSnapshotInfo **psn_info); |
| char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn); |
| int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf); |
| |
| char *get_human_readable_size(char *buf, int buf_size, int64_t size); |
| int path_is_absolute(const char *path); |
| void path_combine(char *dest, int dest_size, |
| const char *base_path, |
| const char *filename); |
| |
| #endif |