Add resource constraint methods to ArbOwner and ArbGasInfo

ArbGasInfo.sol

@@ -4,6 +4,8 @@
 
 pragma solidity >=0.4.21 <0.9.0;
 
+import {ArbResourceConstraintsTypes} from "./ArbResourceConstraintsTypes.sol";
+
 /// @title Provides insight into the cost of using the chain.
 /// @notice These methods have been adjusted to account for Nitro's heavy use of calldata compression.
 /// Of note to end-users, we no longer make a distinction between non-zero and zero-valued calldata bytes.
@@ -120,4 +122,11 @@ interface ArbGasInfo {
     /// @notice Returns the L1 pricing surplus as of the last update (may be negative).
     /// @notice Available in ArbOS version 20 and above
     function getLastL1PricingSurplus() external view returns (int256);
+
+    /// @notice Lists all resource constraints currently configured in ArbOS.
+    /// @notice Available on ArbOS version 60 and above
+    function listResourceConstraints()
+        external
+        view
+        returns (ArbResourceConstraintsTypes.ResourceConstraint[] memory constraints);
 }

ArbOwner.sol

@@ -4,6 +4,8 @@
 
 pragma solidity >=0.4.21 <0.9.0;
 
+import {ArbResourceConstraintsTypes} from "./ArbResourceConstraintsTypes.sol";
+
 /**
  * @title Provides owners with tools for managing the rollup.
  * @notice Calls by non-owners will always revert.
@@ -268,6 +270,26 @@ interface ArbOwner {
         bool enable
     ) external;
 
+    /// @notice Adds or updates a resource constraint
+    /// @notice Available on ArbOS version 60 and above
+    /// @param resources an array of resource–weight pairs (see Nitro documentation for the list of resources)
+    /// @param periodSecs the time window for the constraint
+    /// @param targetPerSec allowed usage per second across weighted resources
+    function setResourceConstraint(
+        ArbResourceConstraintsTypes.ResourceWeight[] calldata resources,
+        uint32 periodSecs,
+        uint64 targetPerSec
+    ) external;
+
+    /// @notice Removes a resource constraint
+    /// @notice Available on ArbOS version 60 and above
+    /// @param resources the list of resource kinds to be removed (see Nitro documentation for the list of resources)
+    /// @param periodSecs the time window for the constraint
+    function clearConstraint(
+        ArbResourceConstraintsTypes.ResourceKind[] calldata resources,
+        uint32 periodSecs
+    ) external;
+
     /// Emitted when a successful call is made to this precompile
     event OwnerActs(bytes4 indexed method, address indexed owner, bytes data);
 }

ArbResourceConstraintsTypes.sol

@@ -0,0 +1,36 @@
+// Copyright 2025, 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 ArbResourceConstraintsTypes
+/// @notice Resource constraints type definitions used by ArbOwner and ArbOwnerPublic precompiles.
+library ArbResourceConstraintsTypes {
+    /// @notice Enumerates the distinct resource kinds used for multi-dimensional gas accounting.
+    /// @dev The numeric values of this enum must remain consistent with the corresponding
+    /// @dev The values defined here must stay synchronized with `go-ethereum/arbitrum/multigas/resources.go`.
+    enum ResourceKind {
+        Unknown,
+        Computation,
+        HistoryGrowth,
+        StorageAccess,
+        StorageGrowth,
+        L1Calldata,
+        L2Calldata,
+        WasmComputation
+    }
+
+    /// @notice A pair representing a resource kind and its weight in constraint calculations.
+    struct ResourceWeight {
+        ResourceKind resource;
+        uint64 weight;
+    }
+
+    /// @notice A constraint describing limits for a set of weighted resources.
+    struct ResourceConstraint {
+        ResourceWeight[] resources;
+        uint32 periodSecs;
+        uint64 targetPerSec;
+    }
+}