LibLayerZero
The LibLayerZero library provides functions for updating Layer Zero settings, handling Layer Zero data transfers (in and out), decoding and encoding data transfer payloads, registering and retrieving extended payloads, and enforcing authorization for Layer Zero operations. It consist of two structs:
updateSettings()
updates the LayerZero settings of the Magpie aggregator contract by storing the given LayerZeroSettings struct in the storage of the aggregator contract.
Input
addLayerZeroChainIds()
used to add a mapping of network IDs to chain IDs in LayerZero. Takes two arrays as input, networkIds and chainIds, where the i-th element of the networkIds array corresponds to the i-th element of the chainIds array.
Input
addLayerZeroNetworkIds()
used to add a mapping of chain IDs to network IDs in LayerZero. Takes two arrays as input, chainIds and networkIds, where the i-th element of the chainIds array corresponds to the i-th element of the networkIds array.
Input
decodeDataTransferInPayload()
takes a byte array as input and returns a LayerZeroDataTransferInData struct. This struct contains the fee that is required to be paid for the data transfer.
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Output
encodeRemoteAndLocalAddresses()
this function is responsible for encoding the remote and local addresses into a bytes array.
Input
Output
dataTransfer()
responsible for transferring data using LayerZero. It takes two parameters as input: payload, which is the data that is to be transferred, and protocol, which is a DataTransferInProtocol struct that contains the payload and network ID.
Input
getPayload()
takes a byte as input, which is the data transfer out payload, and returns the extended payload for the message using the sender network ID, sender address, and core sequence of the message.
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Output
registerPayload()
takes a TransferKey struct and a byte array as input and registers the extended payload for the message in the storage of the aggregator contract.
Input
lzReceive()
is called when a message is received by the contract. It takes three parameters as input: senderChainId, which is the ID of the chain that sent the message, localAndRemoteAddresses, which is a byte array that contains the local and remote addresses of the sender, and extendedPayload, which is the extended payload for the message. This function validates the message and registers the extended payload for the message in the storage of the aggregator contract.
Input
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