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miner mines continuously,

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moved to an account model,
transactions working,
querying working,
more checking of valid data
This commit is contained in:
Josip Milovac 2023-01-10 17:11:56 +11:00
parent 59bb42be11
commit 9847b2056b
12 changed files with 663 additions and 365 deletions
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90
app/miner.js
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@ -1,22 +1,26 @@
const Wallet = require('../wallet');
const Transaction = require('../wallet/transaction');
const Block = require('../blockchain/block');
const ITERATIONS = 1;
class Miner {
static STATE_WAITING = 0;
static STATE_RUNNING = 1;
static STATE_INTERRUPTED = 2;
static STATE_RESTARTING = 3;
static STATE_RUNNING = 0;
static STATE_INTERRUPTED = 1;
constructor(blockchain, transactionPool, wallet, p2pServer) {
constructor(blockchain, transactionPool, reward, p2pServer) {
this.blockchain = blockchain;
this.transactionPool = transactionPool;
this.wallet = wallet;
this.p2pServer = p2pServer;
this.state = Miner.STATE_WAITING;
this.mining = [[], []];
this.state = Miner.STATE_INTERRUPTED;
this.lastBlock = null;
this.minedStartTime = null;
this.mining = {};
this.mining.transactions = [];
this.mining.reward = reward;
this.mining.metadatas = [];
this.startMine();
}
interrupt() {
@ -26,65 +30,77 @@ class Miner {
}
interruptIfContainsTransaction(transaction) {
if (this.state === Miner.STATE_RUNNING && this.mining[0].find(t => t.id === transaction.id)) {
if (this.state === Miner.STATE_RUNNING && this.mining.metadatas.find(t => t.id === transaction.id)) {
this.state = Miner.STATE_INTERRUPTED;
}
}
interruptIfContainsMetadata(metadata) {
if (this.state === Miner.STATE_RUNNING && this.mining[1].find(t => t.id === metadata.id)) {
if (this.state === Miner.STATE_RUNNING && this.mining.transactions.find(t => t.id === metadata.id)) {
this.state = Miner.STATE_INTERRUPTED;
}
}
startMine() {
//only continue if state is waiting or restarting
if (this.state !== Miner.STATE_WAITING && this.state !== Miner.STATE_RESTARTING) {
if (this.state !== Miner.STATE_INTERRUPTED && this.state !== Miner.STATE_RESTARTING) {
return;
}
const validTransactions = this.transactionPool.validTransactions();
const validMetadataS = this.transactionPool.validMetadataS();
this.minedStartTime = process.hrtime.bigint();
if (validTransactions.length === 0 && validMetadataS.length === 0) {
this.state = Miner.STATE_WAITING;
return;
}
validTransactions.push(
Transaction.rewardTransaction(this.wallet, Wallet.blockchainWallet())
);
this.mining.transactions = this.transactionPool.validTransactionsCopy();
this.mining.metadatas = this.transactionPool.validMetadatasCopy();
this.lastBlock = this.blockchain.chain[this.blockchain.chain.length - 1];
this.nonce = 0;
this.state = Miner.STATE_RUNNING;
this.mining = [validTransactions, validMetadataS];
this.nonce = 0;
this.mine();
}
mine() {
if (this.state !== Miner.STATE_RUNNING) {
this.state = Miner.STATE_RESTARTING;
startMine();
this.startMine();
return;
}
const timestamp = Date.now();
const difficulty = Block.adjustDifficulty(this.lastBlock, timestamp);
const hash = Block.hash(timestamp, this.lastBlock.hash, this.mining, this.nonce, difficulty);
if (hash.substring(0, difficulty) === '0'.repeat(difficulty)) {
//success
this.p2pServer.newBlock(new Block(timestamp, this.lastBlock.hash, hash, this.mining, this.nonce, difficulty));
this.state = Miner.STATE_RESTARTING;
setImmediate(() => { this.startMine() });
} else {
//failure
this.nonce++;
setImmediate(() => { this.mine() });
for (let i = 0; i < ITERATIONS; ++i) {
const hash = Block.hash(
timestamp,
this.lastBlock.hash,
this.mining.reward,
this.mining.transactions,
this.mining.metadatas,
this.nonce,
difficulty);
if (hash.substring(0, difficulty) === '0'.repeat(difficulty)) {
//success
const endTime = process.hrtime.bigint();
console.log(`Mined a block of difficulty ${difficulty} in ${Number(endTime - this.minedStartTime) / 1000000}ms`);
this.p2pServer.blockMined(new Block(
timestamp,
this.lastBlock.hash,
hash,
this.mining.reward,
this.mining.transactions,
this.mining.metadatas,
this.nonce,
difficulty));
this.state = Miner.STATE_RESTARTING;
setImmediate(() => { this.startMine() });
} else {
//failure
this.nonce++;
}
}
setImmediate(() => { this.mine() });
}
}
module.exports = Miner;
module.exports = Miner;