b56a1e3175
It's more comfortable to not deal with local_err. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Message-id: 20190920082543.23444-3-vsementsov@virtuozzo.com Signed-off-by: John Snow <jsnow@redhat.com>
119 lines
6.6 KiB
C
119 lines
6.6 KiB
C
#ifndef BLOCK_DIRTY_BITMAP_H
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#define BLOCK_DIRTY_BITMAP_H
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#include "qapi/qapi-types-block-core.h"
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#include "qemu/hbitmap.h"
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typedef enum BitmapCheckFlags {
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BDRV_BITMAP_BUSY = 1,
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BDRV_BITMAP_RO = 2,
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BDRV_BITMAP_INCONSISTENT = 4,
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} BitmapCheckFlags;
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#define BDRV_BITMAP_DEFAULT (BDRV_BITMAP_BUSY | BDRV_BITMAP_RO | \
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BDRV_BITMAP_INCONSISTENT)
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#define BDRV_BITMAP_ALLOW_RO (BDRV_BITMAP_BUSY | BDRV_BITMAP_INCONSISTENT)
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BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
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uint32_t granularity,
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const char *name,
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Error **errp);
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void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap,
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int chunk_size);
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void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap);
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int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap);
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BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
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const char *name);
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int bdrv_dirty_bitmap_check(const BdrvDirtyBitmap *bitmap, uint32_t flags,
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Error **errp);
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void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
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void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs);
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int bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs, const char *name,
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Error **errp);
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void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
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void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
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void bdrv_enable_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap);
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BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs);
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uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs);
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uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_has_successor(BdrvDirtyBitmap *bitmap);
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const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap);
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int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap);
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DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap);
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void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap);
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BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter);
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uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap,
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uint64_t offset, uint64_t bytes);
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uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
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uint8_t *buf, uint64_t offset,
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uint64_t bytes);
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void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
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uint8_t *buf, uint64_t offset,
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uint64_t bytes, bool finish);
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void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
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uint64_t offset, uint64_t bytes,
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bool finish);
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void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap,
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uint64_t offset, uint64_t bytes,
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bool finish);
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void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value);
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void bdrv_dirty_bitmap_set_persistence(BdrvDirtyBitmap *bitmap,
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bool persistent);
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void bdrv_dirty_bitmap_set_inconsistent(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_set_busy(BdrvDirtyBitmap *bitmap, bool busy);
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void bdrv_merge_dirty_bitmap(BdrvDirtyBitmap *dest, const BdrvDirtyBitmap *src,
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HBitmap **backup, Error **errp);
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void bdrv_dirty_bitmap_skip_store(BdrvDirtyBitmap *bitmap, bool skip);
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bool bdrv_dirty_bitmap_get(BdrvDirtyBitmap *bitmap, int64_t offset);
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/* Functions that require manual locking. */
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void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_get_locked(BdrvDirtyBitmap *bitmap, int64_t offset);
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void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter);
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void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset);
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int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
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int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes);
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bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap);
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bool bdrv_has_readonly_bitmaps(BlockDriverState *bs);
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bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_get_persistence(BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_inconsistent(const BdrvDirtyBitmap *bitmap);
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bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs);
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BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap);
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char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp);
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int64_t bdrv_dirty_bitmap_next_zero(BdrvDirtyBitmap *bitmap, uint64_t offset,
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uint64_t bytes);
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bool bdrv_dirty_bitmap_next_dirty_area(BdrvDirtyBitmap *bitmap,
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uint64_t *offset, uint64_t *bytes);
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BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap_locked(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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#endif
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