Struct StorageManager 

pub struct StorageManager {
    storage: HashMap<String, AccountStorage>,
    read_count: u64,
    write_count: u64,
    gas_costs: StorageGasCosts,
}

Storage manager for contract storage

Fields

storage: HashMap<String, AccountStorage>

read_count: u64

write_count: u64

gas_costs: StorageGasCosts

Implementations

impl StorageManager

pub fn new(_config: &RuntimeConfig) -> Result<Self, RuntimeError>

Create new storage manager

impl StorageManager

pub fn get( &mut self, account: &str, key: &[u8], ) -> Result<Option<Vec<u8>>, RuntimeError>

Get storage value

pub fn set( &mut self, account: &str, key: &[u8], value: &[u8], ) -> Result<(), RuntimeError>

Set storage value

pub fn delete(&mut self, account: &str, key: &[u8]) -> Result<(), RuntimeError>

Delete storage value

pub fn exists( &mut self, account: &str, key: &[u8], ) -> Result<bool, RuntimeError>

Check if storage key exists

impl StorageManager

pub fn get_storage_size(&self, account: &str) -> Result<usize, RuntimeError>

Get storage size for account

impl StorageManager

pub fn commit( &mut self, account: &str, ) -> Result<Vec<StorageChange>, RuntimeError>

Commit pending changes

pub fn rollback(&mut self, account: &str) -> Result<(), RuntimeError>

Rollback pending changes

pub fn get_pending_changes(&self, account: &str) -> Vec<&StorageChange>

Get all pending changes for account

pub fn calculate_pending_gas_cost(&self, account: &str) -> u64

Calculate total gas cost for pending changes

impl StorageManager

pub fn query( &mut self, query: StorageQuery, ) -> Result<Vec<(Vec<u8>, Vec<u8>)>, RuntimeError>

Query storage with filters

pub fn get_storage_root(&self, account: &str) -> Result<String, RuntimeError>

Get storage root hash for account (Neo compatibility)

impl StorageManager

pub fn read_count(&self) -> u64

Get read count

pub fn write_count(&self) -> u64

Get write count

pub fn get_statistics(&self) -> StorageStatistics

Get storage statistics

pub fn clear(&mut self)

Clear all storage (for testing)

impl StorageManager

fn calculate_storage_gas_cost( &self, change_type: &StorageChangeType, value_size: usize, ) -> u64

fn calculate_merkle_root(&self, items: &[(&Vec<u8>, &Vec<u8>)]) -> Vec<u8>

fn empty_root_hash(&self) -> Vec<u8>

Trait Implementations

impl Debug for StorageManager

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.