#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 */
use a disk image format on top of
it (default for
bdrv_file_open()) */
-#define BDRV_O_DIRECT 0x0020
-#define BDRV_O_AUTOGROW 0x0040 /* Allow backing file to extend when writing past end of file */
+#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
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);
+void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
+ void *opaque);
int bdrv_is_encrypted(BlockDriverState *bs);
+int bdrv_key_required(BlockDriverState *bs);
int bdrv_set_key(BlockDriverState *bs, const char *key);
+int bdrv_query_missing_keys(void);
void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
void *opaque);
const char *bdrv_get_device_name(BlockDriverState *bs);
const uint8_t *buf, int nb_sectors);
int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
+const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
void bdrv_get_backing_filename(BlockDriverState *bs,
char *filename, int filename_size);
int bdrv_snapshot_create(BlockDriverState *bs,
const char *base_path,
const char *filename);
+int bdrv_put_buffer(BlockDriverState *bs, const uint8_t *buf,
+ int64_t pos, int size);
+
+int bdrv_get_buffer(BlockDriverState *bs, uint8_t *buf, int64_t pos, int size);
+
#endif