package types import ( "github.com/pkg/errors" ) const ( maxBlockSizeBytes = 104857600 // 100MB ) // ConsensusParams contains consensus critical parameters // that determine the validity of blocks. type ConsensusParams struct { *BlockSizeParams `json:"block_size_params"` *TxSizeParams `json:"tx_size_params"` *BlockGossipParams `json:"block_gossip_params"` } // BlockSizeParams contain limits on the block size. type BlockSizeParams struct { MaxBytes int `json:"max_bytes"` // NOTE: must not be 0 MaxTxs int `json:"max_txs"` MaxGas int `json:"max_gas"` } // TxSizeParams contain limits on the tx size. type TxSizeParams struct { MaxBytes int `json:"max_bytes"` MaxGas int `json:"max_gas"` } // BlockGossipParams determine consensus critical elements of how blocks are gossiped type BlockGossipParams struct { BlockPartSizeBytes int `json:"block_part_size_bytes"` // NOTE: must not be 0 } // DefaultConsensusParams returns a default ConsensusParams. func DefaultConsensusParams() *ConsensusParams { return &ConsensusParams{ DefaultBlockSizeParams(), DefaultTxSizeParams(), DefaultBlockGossipParams(), } } // DefaultBlockSizeParams returns a default BlockSizeParams. func DefaultBlockSizeParams() *BlockSizeParams { return &BlockSizeParams{ MaxBytes: 22020096, // 21MB MaxTxs: 100000, MaxGas: -1, } } // DefaultTxSizeParams returns a default TxSizeParams. func DefaultTxSizeParams() *TxSizeParams { return &TxSizeParams{ MaxBytes: 10240, // 10kB MaxGas: -1, } } // DefaultBlockGossipParams returns a default BlockGossipParams. func DefaultBlockGossipParams() *BlockGossipParams { return &BlockGossipParams{ BlockPartSizeBytes: 65536, // 64kB, } } // Validate validates the ConsensusParams to ensure all values // are within their allowed limits, and returns an error if they are not. func (params *ConsensusParams) Validate() error { // ensure some values are greater than 0 if params.BlockSizeParams.MaxBytes <= 0 { return errors.Errorf("BlockSizeParams.MaxBytes must be greater than 0. Got %d", params.BlockSizeParams.MaxBytes) } if params.BlockGossipParams.BlockPartSizeBytes <= 0 { return errors.Errorf("BlockGossipParams.BlockPartSizeBytes must be greater than 0. Got %d", params.BlockGossipParams.BlockPartSizeBytes) } // ensure blocks aren't too big if cp.BlockSizeParams.MaxBytes > maxBlockSizeBytes { return errors.Errorf("BlockSizeParams.MaxBytes is too big. %d > %d", cp.BlockSizeParams.MaxBytes, maxBlockSizeBytes) } return nil }