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This commit is contained in:
Antonio Andelic 2024-02-12 09:15:40 +01:00
parent d2eac53c86
commit c9c0e12b4c
1 changed files with 23 additions and 17 deletions
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40
src/Coordination/KeeperStorage.h
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@ -40,22 +40,6 @@ public:
int64_t mtime{0};
struct
{
bool is_ephemeral : 1;
int64_t ctime : 63;
} is_ephemeral_and_ctime{false, 0};
union
{
int64_t ephemeral_owner;
struct
{
int32_t seq_num;
int32_t num_children;
} children_info;
} ephemeral_or_children_data{0};
std::unique_ptr<char[]> data{nullptr};
uint32_t data_size{0};
@ -174,12 +158,34 @@ public:
// (e.g. we don't need to copy list of children)
void shallowCopy(const Node & other);
private:
/// as ctime can't be negative because it stores the timestamp when the
/// node was created, we can use the MSB for a bool
struct
{
bool is_ephemeral : 1;
int64_t ctime : 63;
} is_ephemeral_and_ctime{false, 0};
/// ephemeral notes cannot have children so a node can set either
/// ephemeral_owner OR seq_num + num_children
union
{
int64_t ephemeral_owner;
struct
{
int32_t seq_num;
int32_t num_children;
} children_info;
} ephemeral_or_children_data{0};
ChildrenSet children{};
};
#if !defined(ADDRESS_SANITIZER) && !defined(MEMORY_SANITIZER)
static_assert(
sizeof(ListNode<Node>) <= 144, "std::list node containing ListNode<Node> is > 160 bytes which will increase memory consumption");
sizeof(ListNode<Node>) <= 144,
"std::list node containing ListNode<Node> is > 160 bytes (sizeof(ListNode<Node>) + 16 bytes for pointers) which will increase "
"memory consumption");
#endif
enum DigestVersion : uint8_t