diff options
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index 5217bea8a2..e5473e1efe 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -78,6 +78,9 @@ typedef struct QCowSnapshot { uint64_t vm_clock_nsec; } QCowSnapshot; +struct Qcow2Cache; +typedef struct Qcow2Cache Qcow2Cache; + typedef struct BDRVQcowState { int cluster_bits; int cluster_size; @@ -215,4 +218,20 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs, const char *snapshot_name); void qcow2_free_snapshots(BlockDriverState *bs); int qcow2_read_snapshots(BlockDriverState *bs); +/* qcow2-cache.c functions */ +Qcow2Cache *qcow2_cache_create(BlockDriverState *bs, int num_tables, + bool writethrough); +int qcow2_cache_destroy(BlockDriverState* bs, Qcow2Cache *c); + +void qcow2_cache_entry_mark_dirty(Qcow2Cache *c, void *table); +int qcow2_cache_flush(BlockDriverState *bs, Qcow2Cache *c); +int qcow2_cache_set_dependency(BlockDriverState *bs, Qcow2Cache *c, + Qcow2Cache *dependency); + +int qcow2_cache_get(BlockDriverState *bs, Qcow2Cache *c, uint64_t offset, + void **table); +int qcow2_cache_get_empty(BlockDriverState *bs, Qcow2Cache *c, uint64_t offset, + void **table); +int qcow2_cache_put(BlockDriverState *bs, Qcow2Cache *c, void **table); + #endif |