Module fees 

Re-exports

use crate::eth::backend::info::StorageInfo; 🔒

use crate::eth::backend::notifications::ChainNotifications; 🔒

use crate::eth::error::BlockchainError; 🔒

use alloy_consensus::BlockHeader; 🔒

use alloy_consensus::Transaction; 🔒

use alloy_consensus::TxReceipt; 🔒

use alloy_eips::calc_next_block_base_fee; 🔒

use alloy_eips::eip1559::BaseFeeParams; 🔒

use alloy_eips::eip7840::BlobParams; 🔒

use alloy_network::Network; 🔒

use alloy_primitives::B256; 🔒

use alloy_primitives::Bytes; 🔒

use futures::StreamExt; 🔒

use parking_lot::Mutex; 🔒

use parking_lot::RwLock; 🔒

use revm::context_interface::block::BlobExcessGasAndPrice; 🔒

use revm::primitives::hardfork::SpecId; 🔒

use std::collections::BTreeMap; 🔒

use std::fmt; 🔒

use std::pin::Pin; 🔒

use std::sync::Arc; 🔒

use std::sync::LazyLock; 🔒

use std::task::Context; 🔒

use std::task::Poll; 🔒

use tempo_hardfork::TempoHardfork; 🔒

use tempo_hardfork::constants::gas::tempo_t7_next_block_base_fee; 🔒

use foundry_evm::hardfork::OpHardfork; 🔒 optimism

Modules

optimism 🔒 optimism

Optimism-specific dynamic EIP-1559 fee rules.

Structs

FeeDetails

FeeHistoryCacheItem

A single item in the whole fee history cache

FeeHistoryService

An async service that takes care of the FeeHistory cache

FeeManager

Stores the fee related information

FeeRules 🔒

FeeSnapshot 🔒

Chain-derived fee state for the next block.

FeeState 🔒

ParentHeaderFees 🔒

Enums

BaseFeeRules 🔒

Constants

BASE_FEE_CHANGE_DENOMINATOR

Bounds the amount the base fee can change between blocks.

INITIAL_BASE_FEE

Initial base fee for EIP-1559 blocks.

INITIAL_GAS_PRICE

Initial default gas price for the first block

MAX_FEE_HISTORY_CACHE_SIZE

Maximum number of entries in the fee history cache

MIN_SUGGESTED_PRIORITY_FEE

Minimum suggested priority fee

REWARD_PERCENTILE_RESOLUTION 🔒

Number of cached reward samples per percentile.

Statics

REWARD_PERCENTILES 🔒

Percentile list from 0.0 to 100.0 with a 0.5 resolution (201 points).

Functions

calculate_next_block_base_fee_per_gas 🔒

calculate_parent_header_fees 🔒

create_fee_history_cache_item 🔒

Builds the FeeHistoryCacheItem for a single block.

insert_fee_history_cache_item 🔒

Inserts an entry into the fee history cache and trims it back to fee_history_limit.

reward_percentiles 🔒

Calculates percentile rewards from transactions sorted by effective reward.

tempo_next_block_base_fee 🔒

Computes the next block’s base fee for a Tempo chain.

Type Aliases

FeeHistoryCache