#ifndef BLOCK_H
#define BLOCK_H
+#include "qemu-aio.h"
+#include "qemu-common.h"
+
/* block.c */
typedef struct BlockDriver BlockDriver;
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;
+ int64_t highest_alloc; /* highest allocated block offset (in bytes) */
+ int64_t num_free_bytes; /* below highest_alloc */
} BlockDriverInfo;
typedef struct QEMUSnapshotInfo {
use a disk image format on top of
it (default for
bdrv_file_open()) */
+#define BDRV_O_NOCACHE 0x0020 /* do not use the host page cache */
+#define BDRV_O_CACHE_WB 0x0040 /* use write-back caching */
+#define BDRV_O_CACHE_DEF 0x0080 /* use default caching */
+
+#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_CACHE_DEF)
-#ifndef QEMU_IMG
void bdrv_info(void);
void bdrv_info_stats(void);
-#endif
void bdrv_init(void);
BlockDriver *bdrv_find_format(const char *format_name);
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);
+void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs);
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_readv(BlockDriverState *bs, int64_t sector_num,
+ QEMUIOVector *iov, int nb_sectors,
+ BlockDriverCompletionFunc *cb, void *opaque);
+BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
+ QEMUIOVector *iov, int nb_sectors,
+ BlockDriverCompletionFunc *cb, void *opaque);
+
BlockDriverAIOCB *bdrv_aio_read(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque);
BlockDriverCompletionFunc *cb, void *opaque);
void bdrv_aio_cancel(BlockDriverAIOCB *acb);
-void qemu_aio_init(void);
-void qemu_aio_poll(void);
-void qemu_aio_flush(void);
-void qemu_aio_wait_start(void);
-void qemu_aio_wait(void);
-void qemu_aio_wait_end(void);
-
int qemu_key_check(BlockDriverState *bs, const char *name);
/* Ensure contents are flushed to disk. */
void bdrv_flush(BlockDriverState *bs);
+void bdrv_flush_all(void);
+
+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
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);
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);