DestinationStewardReceiver

DestinationStewardReceiver

Destination‑chain contract that receives bridged updates from RiskStewardReceiver via LayerZero, enforces a fixed remote delay, and then executes the updates on the configured IRiskSteward contracts.

Solidity API

REMOTE_UPDATE_EXPIRATION_TIME

Time before a bridged update is considered stale on the destination chain

uint256 REMOTE_UPDATE_EXPIRATION_TIME

---

LAYER_ZERO_EID

Destination chain LayerZero endpoint ID

uint32 LAYER_ZERO_EID

---

remoteDelay

Delay before a bridged update can be executed on the destination chain

uint256 remoteDelay

---

riskParameterConfigs

Mapping of supported risk configurations per update type (hashed updateType string)

mapping(bytes32 => struct IDestinationStewardReceiver.RiskParamConfig) riskParameterConfigs

---

updates

Master storage of all bridged updates by update ID

mapping(uint256 => struct IDestinationStewardReceiver.DestinationUpdate) updates

---

lastRegisteredUpdateId

Mapping from (updateType, market) to currently registered remote update ID

mapping(bytes32 => mapping(address => uint256)) lastRegisteredUpdateId

---

lastExecutedAt

Track last executed update timestamp per (updateType, market)

mapping(bytes32 => mapping(address => uint256)) lastExecutedAt

---

whitelistedExecutors

Mapping from executor address to whitelist status

mapping(address => bool) whitelistedExecutors

---

constructor

Disables initializers and sets immutable values.

constructor(address endpoint_, uint32 layerZeroEid_) public

Parameters

Name	Type	Description
endpoint_	address	Local LayerZero endpoint on this chain
layerZeroEid_	uint32	LayerZero endpoint ID for this destination chain

---

initialize

Initializes the contract with the Access Control Manager and owner.

function initialize(address accessControlManager_, address delegate_) external

Parameters

Name	Type	Description
accessControlManager_	address	The address of the access control manager
delegate_	address	The owner (and LayerZero delegate) of this contract

---

setRiskParameterConfig

Sets the risk parameter config for a given update type on the destination chain.

function setRiskParameterConfig(string updateType, address riskSteward, uint256 debounce) external

Parameters

Name	Type	Description
updateType	string	The type of update to configure (e.g., "supplyCap", "borrowCap")
riskSteward	address	The address for the risk steward contract responsible for processing the update
debounce	uint256	The debounce period for updates of this type on the destination (anti‑DoS)

📅 Events

• Emits RiskParameterConfigUpdated

⛔️ Access Requirements

• Controlled by AccessControlManager

❌ Errors

• InvalidUpdateType if the update type string is empty

• InvalidDebounce if the debounce is 0

---

setConfigActive

Sets the active status of a risk parameter config

function setConfigActive(string updateType, bool active) external

Parameters

Name	Type	Description
updateType	string	The type of update to configure
active	bool	The active status to set

📅 Events

• Emits ConfigActiveUpdated with the update type hash, update type, previous active status, and the active status

⛔️ Access Requirements

• Controlled by AccessControlManager

❌ Errors

• Throws UnsupportedUpdateType if the update type is not supported

• Throws ConfigStatusUnchanged if the active status is already set to the desired value

---

setRemoteDelay

Sets the remote delay before bridged updates can be executed on the destination chain.

function setRemoteDelay(uint256 newRemoteDelay) external

Parameters

Name	Type	Description
newRemoteDelay	uint256	The new remote delay in seconds

📅 Events

• Emits RemoteDelaySet with the new remote delay value

⛔️ Access Requirements

• Controlled by AccessControlManager

❌ Errors

• InvalidRemoteDelay if the delay is 0 or greater than or equal to the remote update expiration time

• RemoteDelayUnchanged if the new delay is equal to the current delay

---

setWhitelistedExecutor

Sets the whitelist status of an executor on the destination chain.

function setWhitelistedExecutor(address executor, bool approved) external

Parameters

Name	Type	Description
executor	address	The address of the executor
approved	bool	The whitelist status to set (true to whitelist, false to remove)

📅 Events

• Emits ExecutorStatusUpdated with the executor address, previous approval status, and new approval status

⛔️ Access Requirements

• Controlled by AccessControlManager

❌ Errors

• Throws ZeroAddressNotAllowed if the executor address is zero

• Throws ExecutorStatusUnchanged if the executor whitelist status is already set to the desired value

---

executeUpdate

Executes a bridged update after its remote delay has passed.

function executeUpdate(uint256 updateId) external

Parameters

Name	Type	Description
updateId	uint256	The bridged update ID to execute

📅 Events

• Emits RemoteUpdateExecuted with the executed update ID

⛔️ Access Requirements

• Only whitelisted executors can execute updates

❌ Errors

• NotAnExecutor if the caller is not a whitelisted executor

• ConfigNotActive if the configuration for the update type is not active

• UpdateNotFound if the update is not pending for the given (updateType, market)

• UpdateNotUnlocked if the remote delay has not elapsed

• UpdateIsExpired if the bridged update has expired on the destination

• UpdateTooFrequent if the debounce period has not passed since the last execution

---

rejectUpdate

Rejects a registered remote update on the destination chain.

function rejectUpdate(uint256 updateId) external

Parameters

Name	Type	Description
updateId	uint256	The oracle update ID of the update to reject

📅 Events

• Emits UpdateRejected with the rejected update ID

⛔️ Access Requirements

• Only whitelisted executors can reject updates

❌ Errors

• NotAnExecutor if the caller is not a whitelisted executor

• UpdateNotFound if there is no pending update with the given ID

---

getExecutableUpdates

Returns executable updates for a given update type and comptroller.

function getExecutableUpdates(string updateType, address comptroller) external view returns (uint256[] executableUpdates)

Parameters

Name	Type	Description
updateType	string	The human‑readable identifier of the update type to filter by
comptroller	address	The address of the Isolated Pools Comptroller that manages the markets

Return Values

Name	Type	Description
executableUpdates	uint256[]	Array of update IDs that are ready to be executed

---

getRiskParameterConfig

Returns the risk parameter configuration for a given update type

function getRiskParameterConfig(string updateType) external view returns (struct IDestinationStewardReceiver.RiskParamConfig)

Parameters

Name	Type	Description
updateType	string	The human-readable identifier of the update type

Return Values

Name	Type	Description
[0]	struct IDestinationStewardReceiver.RiskParamConfig	The risk parameter configuration

---

getRegisteredUpdate

Returns the registered update for a given update type and market

function getRegisteredUpdate(string updateType, address market) external view returns (struct IDestinationStewardReceiver.DestinationUpdate)

Parameters

Name	Type	Description
updateType	string	The human-readable identifier of the update type
market	address	The address of the market

Return Values

Name	Type	Description
[0]	struct IDestinationStewardReceiver.DestinationUpdate	The registered update

---

getLastExecutedAt

Returns the last executed timestamp for a given update type and market

function getLastExecutedAt(string updateType, address market) external view returns (uint256)

Parameters

Name	Type	Description
updateType	string	The human-readable identifier of the update type
market	address	The address of the market

Return Values

Name	Type	Description
[0]	uint256	The last executed timestamp

---

renounceOwnership

Disables renounceOwnership function

function renounceOwnership() public pure

❌ Errors

• Throws RenounceOwnershipNotAllowed

---