L2MessageManager
L1_L2_MESSAGE_SETTER_ROLE
bytes32 L1_L2_MESSAGE_SETTER_ROLE
The role required to anchor L1 to L2 message hashes.
lastAnchoredL1MessageNumber
uint256 lastAnchoredL1MessageNumber
Contains the last L1 message number anchored on L2.
l1RollingHashes
mapping(uint256 => bytes32) l1RollingHashes
Contains the L1 to L2 messaging rolling hashes mapped to message number computed on L2.
anchorL1L2MessageHashes
function anchorL1L2MessageHashes(bytes32[] _messageHashes, uint256 _startingMessageNumber, uint256 _finalMessageNumber, bytes32 _finalRollingHash) external
Add cross-chain L1->L2 message hashes in storage.
Only address that has the role 'L1_L2_MESSAGE_SETTER_ROLE' are allowed to call this function. NB: In the unlikely event of a duplicate anchoring, the lastAnchoredL1MessageNumber MUST NOT be incremented. and the rolling hash not calculated, else synchronisation will break. If starting number is zero, an underflow error is expected.
Parameters
| Name | Type | Description |
|---|---|---|
| _messageHashes | bytes32[] | New message hashes to anchor on L2. |
| _startingMessageNumber | uint256 | The expected L1 message number to start when anchoring. |
| _finalMessageNumber | uint256 | The expected L1 message number to end on when anchoring. |
| _finalRollingHash | bytes32 | The expected L1 rolling hash to end on when anchoring. |