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Do not store offset & len in big_writes

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This commit is contained in:
Vitaliy Filippov
2025-12-02 01:52:12 +03:00
parent 94f3634602
commit ac8e0ef231
10 changed files with 330 additions and 270 deletions
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src/blockstore/blockstore_heap.h
+34 -4
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@@ -31,6 +31,37 @@ struct pool_shard_settings_t
class blockstore_heap_t;
struct __attribute__((__packed__)) heap_small_write_t
{
uint16_t size;
int16_t next_pos;
uint8_t flags;
uint64_t lsn;
uint64_t version;
uint64_t location;
uint32_t offset;
uint32_t len;
};
struct __attribute__((__packed__)) heap_big_write_t
{
uint16_t size;
int16_t next_pos;
uint8_t flags;
uint64_t lsn;
uint64_t version;
uint64_t location;
};
struct __attribute__((__packed__)) heap_tombstone_t
{
uint16_t size;
int16_t next_pos;
uint8_t flags;
uint64_t lsn;
uint64_t version;
};
struct __attribute__((__packed__)) heap_write_t
{
// size should have top bit cleared
@@ -39,9 +70,6 @@ struct __attribute__((__packed__)) heap_write_t
uint8_t entry_type = 0; // BS_HEAP_*
uint64_t lsn = 0;
uint64_t version = 0;
uint32_t offset = 0;
uint32_t len = 0;
uint64_t location = 0;
// uint8_t[] external_bitmap
// uint8_t[] internal_bitmap
@@ -49,6 +77,8 @@ struct __attribute__((__packed__)) heap_write_t
heap_write_t *next();
inline uint8_t type() const { return (entry_type & BS_HEAP_TYPE); }
inline heap_small_write_t& small() { return *(heap_small_write_t*)this; }
inline heap_big_write_t& big() { return *(heap_big_write_t*)this; }
uint32_t get_size(blockstore_heap_t *heap);
uint32_t get_csum_size(blockstore_heap_t *heap);
bool needs_recheck(blockstore_heap_t *heap);
@@ -262,7 +292,7 @@ public:
// unlock an entry
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);
bool calc_checksums(heap_write_t *wr, uint8_t *data, bool set, uint32_t offset = 0, uint32_t len = 0);
// set or verify raw block checksums
bool calc_block_checksums(uint32_t *block_csums, uint8_t *data, uint8_t *bitmap, uint32_t start, uint32_t end,
bool set, std::function<void(uint32_t, uint32_t, uint32_t)> bad_block_cb);