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WIP Only save MVCC copy when overwriting an object

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This commit is contained in:
Vitaliy Filippov
2025-11-23 19:07:43 +03:00
parent 393f9d6b6f
commit 66847653aa
3 changed files with 83 additions and 82 deletions
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src/blockstore/blockstore_heap.h
+3 -3
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@@ -203,13 +203,13 @@ public:
void reshard(pool_id_t pool, uint32_t pg_count, uint32_t pg_stripe_size);
// read an object entry and lock it against removal
// in the future, may become asynchronous
heap_object_t *lock_and_read_entry(object_id oid, uint64_t & lsn);
heap_object_t *lock_and_read_entry(object_id oid, uint64_t & copy_id);
// re-read a locked object entry with the given lsn (pointer may be invalidated)
heap_object_t *read_locked_entry(object_id oid, uint64_t lsn);
heap_object_t *read_locked_entry(object_id oid, uint64_t copy_id);
// read an object entry without locking it
heap_object_t *read_entry(object_id oid, uint32_t *block_num_ptr, bool for_update = false);
// unlock an entry
bool unlock_entry(object_id oid, uint64_t lsn);
bool unlock_entry(object_id oid, uint64_t copy_id);
// set or verify checksums in a write request
bool calc_checksums(heap_write_t *wr, uint8_t *data, bool set);
// set or verify raw block checksums