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VmDatabase

ethrex_vm

Trait VmDatabase 

Source 
pub trait VmDatabase:
    Send
    + Sync
    + DynClone {
    // Required methods
    fn get_account_state(
        &self,
        address: Address,
    ) -> Result<Option<AccountState>, EvmError>;
    fn get_storage_slot(
        &self,
        address: Address,
        key: H256,
    ) -> Result<Option<U256>, EvmError>;
    fn get_block_hash(&self, block_number: u64) -> Result<H256, EvmError>;
    fn get_chain_config(&self) -> Result<ChainConfig, EvmError>;
    fn get_account_code(&self, code_hash: H256) -> Result<Code, EvmError>;
    fn get_code_metadata(
        &self,
        code_hash: H256,
    ) -> Result<CodeMetadata, EvmError>;

    // Provided methods
    fn code_cache_budget_bytes(&self) -> u64 { ... }
    fn get_account_states_batch(
        &self,
        addresses: &[Address],
    ) -> Result<Vec<Option<AccountState>>, EvmError> { ... }
    fn get_account_codes_batch(
        &self,
        code_hashes: &[H256],
    ) -> Result<Vec<Option<Code>>, EvmError> { ... }
    fn get_storage_slots_batch(
        &self,
        keys: &[(Address, H256)],
    ) -> Result<Vec<Option<U256>>, EvmError> { ... }
}

Required Methods§

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fn get_account_state( &self, address: Address, ) -> Result<Option<AccountState>, EvmError>

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fn get_storage_slot( &self, address: Address, key: H256, ) -> Result<Option<U256>, EvmError>

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fn get_block_hash(&self, block_number: u64) -> Result<H256, EvmError>

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fn get_chain_config(&self) -> Result<ChainConfig, EvmError>

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fn get_account_code(&self, code_hash: H256) -> Result<Code, EvmError>

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fn get_code_metadata(&self, code_hash: H256) -> Result<CodeMetadata, EvmError>

Provided Methods§

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fn code_cache_budget_bytes(&self) -> u64

Capacity of this backend’s bytecode cache, in Code::size bytes, which bounds how much bytecode a block warm reads speculatively. Default is the floor for a backend holding no such cache.

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fn get_account_states_batch( &self, addresses: &[Address], ) -> Result<Vec<Option<AccountState>>, EvmError>

Batch account-state lookup. Default impl loops get_account_state. Backends that can amortize per-key cost (e.g. rocksdb multi_get_cf on the flat key-value table) should override this.

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fn get_account_codes_batch( &self, code_hashes: &[H256], ) -> Result<Vec<Option<Code>>, EvmError>

Batch bytecode lookup, aligned to code_hashes. None means the hash is absent from the database, which callers warming a cache treat as nothing to warm rather than as failure. Default impl loops get_account_code; backends that can amortize per-key cost (e.g. rocksdb multi_get_cf on the account-codes table) override it.

Source

fn get_storage_slots_batch( &self, keys: &[(Address, H256)], ) -> Result<Vec<Option<U256>>, EvmError>

Batch storage-slot lookup. Default impl loops get_storage_slot. Backends that can amortize per-key cost (e.g. rocksdb multi_get_cf on the flat key-value table) should override this.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§