code.vegaprotocol.io/vega@v0.79.0/core/pow/noop_engine.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package pow
    17  
    18  import (
    19  	"code.vegaprotocol.io/vega/core/blockchain/abci"
    20  	"code.vegaprotocol.io/vega/libs/crypto"
    21  	protoapi "code.vegaprotocol.io/vega/protos/vega/api/v1"
    22  
    23  	"github.com/ethereum/go-ethereum/common/math"
    24  )
    25  
    26  type NoopEngine struct {
    27  	blockHeight uint64
    28  	blockHash   string
    29  }
    30  
    31  func NewNoop() *NoopEngine {
    32  	return &NoopEngine{}
    33  }
    34  
    35  func (e *NoopEngine) BeginBlock(blockHeight uint64, blockHash string, txs []abci.Tx) {
    36  	e.blockHeight = blockHeight
    37  	e.blockHash = blockHash
    38  }
    39  
    40  func (e *NoopEngine) OnFinalize() {}
    41  func (e *NoopEngine) EndOfBlock() {}
    42  func (e *NoopEngine) Commit()     {}
    43  func (e *NoopEngine) CheckTx(tx abci.Tx) error {
    44  	return nil
    45  }
    46  
    47  func (e *NoopEngine) ProcessProposal([]abci.Tx) bool { return false }
    48  func (e *NoopEngine) CheckBlockTx(tx abci.Tx) (ValidationResult, *uint) {
    49  	return ValidationResultSuccess, nil
    50  }
    51  func (e *NoopEngine) EndPrepareProposal([]ValidationEntry) {}
    52  func (e *NoopEngine) IsReady() bool                        { return true }
    53  func (e *NoopEngine) SpamPoWNumberOfPastBlocks() uint32    { return uint32(0) }
    54  func (e *NoopEngine) SpamPoWDifficulty() uint32            { return uint32(0) }
    55  func (e *NoopEngine) SpamPoWHashFunction() string          { return "" }
    56  func (e *NoopEngine) SpamPoWNumberOfTxPerBlock() uint32    { return uint32(0) }
    57  func (e *NoopEngine) SpamPoWIncreasingDifficulty() bool    { return false }
    58  
    59  func (e *NoopEngine) BlockData() (uint64, string) {
    60  	return e.blockHeight, e.blockHash
    61  }
    62  
    63  func (e *NoopEngine) GetSpamStatistics(_ string) *protoapi.PoWStatistic {
    64  	var expected uint64
    65  	return &protoapi.PoWStatistic{
    66  		NumberOfPastBlocks: 500,
    67  		BlockStates: []*protoapi.PoWBlockState{
    68  			{
    69  				BlockHeight:          e.blockHeight,
    70  				BlockHash:            e.blockHash,
    71  				TransactionsSeen:     0,
    72  				ExpectedDifficulty:   &expected,
    73  				HashFunction:         crypto.Sha3,
    74  				Difficulty:           0,
    75  				TxPerBlock:           math.MaxUint64,
    76  				IncreasingDifficulty: true,
    77  			},
    78  		},
    79  	}
    80  }