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ArbAggregator.sol
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ArbAggregator.sol
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// Copyright 2021-2022, Offchain Labs, Inc.
// For license information, see https://github.com/OffchainLabs/nitro-contracts/blob/main/LICENSE
// SPDX-License-Identifier: BUSL-1.1
pragma solidity >=0.4.21 <0.9.0;
/// @title Provides aggregators and their users methods for configuring how they participate in L1 aggregation.
/// @notice Precompiled contract that exists in every Arbitrum chain at 0x000000000000000000000000000000000000006d
interface ArbAggregator {
/// @notice Deprecated, customization of preferred aggregator is no longer supported
/// @notice Get the address of an arbitrarily chosen batch poster.
/// @param addr ignored
/// @return (batchPosterAddress, true)
function getPreferredAggregator(address addr) external view returns (address, bool);
/// @notice Deprecated, there is no longer a single preferred aggregator, use getBatchPosters instead
/// @notice Get default aggregator.
function getDefaultAggregator() external view returns (address);
/// @notice Get a list of all current batch posters
/// @return Batch poster addresses
function getBatchPosters() external view returns (address[] memory);
/// @notice Adds newBatchPoster as a batch poster
/// This reverts unless called by a chain owner
/// @param newBatchPoster New batch poster
function addBatchPoster(address newBatchPoster) external;
/// @notice Get the address where fees to batchPoster are sent.
/// @param batchPoster The batch poster to get the fee collector for
/// @return The fee collectors address. This will sometimes but not always be the same as the batch poster's address.
function getFeeCollector(address batchPoster) external view returns (address);
/// @notice Set the address where fees to batchPoster are sent.
/// This reverts unless called by the batch poster, its fee collector, or a chain owner
/// @param batchPoster The batch poster to set the fee collector for
/// @param newFeeCollector The new fee collector to set
function setFeeCollector(address batchPoster, address newFeeCollector) external;
/// @notice Deprecated, always returns zero
/// @notice Get the tx base fee (in approximate L1 gas) for aggregator
/// @param aggregator The aggregator to get the base fee for
function getTxBaseFee(address aggregator) external view returns (uint256);
/// @notice Deprecated, is now a no-op
/// @notice Set the tx base fee (in approximate L1 gas) for aggregator
/// Revert unless called by aggregator or the chain owner
/// Revert if feeInL1Gas is outside the chain's allowed bounds
/// @param aggregator The aggregator to set the fee for
/// @param feeInL1Gas The base fee in L1 gas
function setTxBaseFee(address aggregator, uint256 feeInL1Gas) external;
}