1 | ;
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | const tslib_1 = require("tslib");
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4 | const client_common_1 = require("@neo-one/client-common");
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5 | const node_core_1 = require("@neo-one/node-core");
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6 | const utils_1 = require("@neo-one/utils");
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7 | const bignumber_js_1 = tslib_1.__importDefault(require("bignumber.js"));
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8 | const lodash_1 = tslib_1.__importDefault(require("lodash"));
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9 | const common_1 = require("./common");
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10 | const context_1 = require("./context");
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11 | const createMinerTransaction = async ({ node, feeAddress, transactions, nonce, }) => {
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12 | const networkFee = await node_core_1.Block.calculateNetworkFee(node.blockchain.feeContext, transactions);
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13 | const outputs = networkFee.isZero()
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14 | ? []
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15 | : [
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16 | new node_core_1.Output({
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17 | asset: node.blockchain.settings.utilityToken.hash,
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18 | value: networkFee,
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19 | address: feeAddress,
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20 | }),
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21 | ];
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22 | return new node_core_1.MinerTransaction({
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23 | nonce: nonce.mod(node_core_1.utils.UINT_MAX.addn(1)).toNumber(),
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24 | outputs,
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25 | });
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26 | };
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27 | const requestChangeView = ({ context: contextIn, node, privateKey, consensusContext, }) => {
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28 | let context = contextIn;
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29 | context = context.cloneExpectedView({
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30 | expectedView: common_1.incrementExpectedView(context),
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31 | });
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32 | common_1.signAndRelayChangeView({ context, node, privateKey });
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33 | const viewNumber = context.expectedView[context.myIndex];
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34 | if (common_1.checkExpectedView({ context, viewNumber })) {
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35 | return common_1.initializeConsensusInitial({
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36 | blockchain: node.blockchain,
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37 | context,
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38 | viewNumber,
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39 | consensusContext,
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40 | });
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41 | }
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42 | const { secondsPerBlock } = node.blockchain.settings;
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43 | return {
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44 | context,
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45 | timerSeconds: secondsPerBlock << (viewNumber + 1),
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46 | };
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47 | };
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48 | exports.runConsensus = async ({ context, node, options: { privateKey, feeAddress, privateNet }, consensusContext, }) => {
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49 | if (context.type === 'primary' && !(context instanceof context_1.RequestSentContext)) {
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50 | let requestSentContext;
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51 | if (context instanceof context_1.SignatureSentContext) {
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52 | requestSentContext = context.cloneRequestSent();
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53 | }
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54 | else {
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55 | const nonce = node_core_1.utils.randomUInt64();
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56 | let mutableTransactions = Object.values(node.memPool);
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57 | const minerTransaction = await createMinerTransaction({
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58 | node,
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59 | feeAddress,
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60 | transactions: mutableTransactions,
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61 | nonce,
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62 | });
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63 | if (mutableTransactions.length >= node.blockchain.settings.maxTransactionsPerBlock) {
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64 | const mutableNetworkFees = await Promise.all(mutableTransactions.map(async (transaction) => {
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65 | const networkFee = await transaction.getNetworkFee(node.blockchain.feeContext);
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66 | return [transaction, new bignumber_js_1.default(networkFee.toString(10))];
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67 | }));
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68 | mutableNetworkFees.sort(([first, a], [second, b]) => b.div(second.size).comparedTo(a.div(first.size)));
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69 | mutableTransactions = lodash_1.default.take(mutableNetworkFees, node.blockchain.settings.maxTransactionsPerBlock - 1)
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70 | .map(([transaction, _unused]) => transaction);
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71 | }
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72 | mutableTransactions.unshift(minerTransaction);
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73 | const [previousHeader, validators] = await Promise.all([
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74 | node.blockchain.header.get({ hashOrIndex: context.previousHash }),
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75 | node.blockchain.getValidators(mutableTransactions),
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76 | ]);
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77 | const newContext = new context_1.RequestSentContext({
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78 | viewNumber: context.viewNumber,
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79 | myIndex: context.myIndex,
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80 | primaryIndex: context.primaryIndex,
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81 | expectedView: context.expectedView,
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82 | validators: context.validators,
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83 | blockReceivedTimeSeconds: context.blockReceivedTimeSeconds,
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84 | transactions: mutableTransactions.reduce((acc, transaction) => (Object.assign(Object.assign({}, acc), { [transaction.hashHex]: transaction })), {}),
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85 | signatures: [],
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86 | header: {
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87 | type: 'new',
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88 | previousHash: context.previousHash,
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89 | transactionHashes: mutableTransactions.map((transaction) => transaction.hashHex),
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90 | blockIndex: context.blockIndex,
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91 | nonce,
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92 | timestamp: Math.max(consensusContext.nowSeconds(), previousHeader.timestamp + 1),
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93 | nextConsensus: client_common_1.crypto.getConsensusAddress(validators),
|
94 | },
|
95 | });
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96 | const mutableSignatures = [];
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97 | mutableSignatures[newContext.myIndex] = client_common_1.crypto.sign({
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98 | message: newContext.header.message,
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99 | privateKey,
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100 | });
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101 | requestSentContext = newContext.cloneSignatures({ signatures: mutableSignatures });
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102 | }
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103 | if (privateNet) {
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104 | return common_1.checkSignatures({ node, context: requestSentContext });
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105 | }
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106 | common_1.signAndRelay({
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107 | context: requestSentContext,
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108 | node,
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109 | privateKey,
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110 | consensusMessage: new node_core_1.PrepareRequestConsensusMessage({
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111 | viewNumber: requestSentContext.viewNumber,
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112 | nonce: requestSentContext.header.consensusData,
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113 | nextConsensus: requestSentContext.header.nextConsensus,
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114 | transactionHashes: requestSentContext.transactionHashes.map((hash) => client_common_1.common.hexToUInt256(hash)),
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115 | minerTransaction: utils_1.utils.nullthrows(requestSentContext.transactions[requestSentContext.transactionHashes[0]]),
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116 | signature: utils_1.utils.nullthrows(requestSentContext.signatures[requestSentContext.myIndex]),
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117 | }),
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118 | });
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119 | const { secondsPerBlock } = node.blockchain.settings;
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120 | return {
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121 | context: requestSentContext,
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122 | timerSeconds: secondsPerBlock << (requestSentContext.viewNumber + 1),
|
123 | };
|
124 | }
|
125 | if (context instanceof context_1.RequestSentContext || context.type === 'backup') {
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126 | return requestChangeView({
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127 | context,
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128 | node,
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129 | privateKey,
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130 | consensusContext,
|
131 | });
|
132 | }
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133 | return { context };
|
134 | };
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135 |
|
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{ common, crypto, PrivateKey, UInt160 } from '@neo-one/client-common';\nimport {\n  Block,\n  MinerTransaction,\n  Node,\n  Output,\n  PrepareRequestConsensusMessage,\n  Transaction,\n  utils,\n} from '@neo-one/node-core';\nimport { utils as commonUtils } from '@neo-one/utils';\nimport BigNumber from 'bignumber.js';\nimport { BN } from 'bn.js';\nimport _ from 'lodash';\nimport {\n  checkExpectedView,\n  checkSignatures,\n  incrementExpectedView,\n  initializeConsensusInitial,\n  signAndRelay,\n  signAndRelayChangeView,\n} from './common';\nimport { InternalOptions } from './Consensus';\nimport { ConsensusContext } from './ConsensusContext';\nimport { Context, RequestSentContext, SignatureSentContext } from './context';\nimport { Result } from './types';\n\nconst createMinerTransaction = async ({\n  node,\n  feeAddress,\n  transactions,\n  nonce,\n}: {\n  readonly node: Node;\n  readonly feeAddress: UInt160;\n  readonly transactions: readonly Transaction[];\n  readonly nonce: BN;\n}) => {\n  const networkFee = await Block.calculateNetworkFee(node.blockchain.feeContext, transactions);\n\n  const outputs = networkFee.isZero()\n    ? []\n    : [\n        new Output({\n          asset: node.blockchain.settings.utilityToken.hash,\n          value: networkFee,\n          address: feeAddress,\n        }),\n      ];\n\n  return new MinerTransaction({\n    nonce: nonce.mod(utils.UINT_MAX.addn(1)).toNumber(),\n    outputs,\n  });\n};\n\nconst requestChangeView = ({\n  context: contextIn,\n  node,\n  privateKey,\n  consensusContext,\n}: {\n  readonly context: Context;\n  readonly node: Node;\n  readonly privateKey: PrivateKey;\n  readonly consensusContext: ConsensusContext;\n}): Result<Context> => {\n  let context = contextIn;\n\n  context = context.cloneExpectedView({\n    expectedView: incrementExpectedView(context),\n  });\n\n  signAndRelayChangeView({ context, node, privateKey });\n\n  const viewNumber = context.expectedView[context.myIndex];\n  if (checkExpectedView({ context, viewNumber })) {\n    return initializeConsensusInitial({\n      blockchain: node.blockchain,\n      context,\n      viewNumber,\n      consensusContext,\n    });\n  }\n\n  const { secondsPerBlock } = node.blockchain.settings;\n\n  return {\n    context,\n    // tslint:disable-next-line no-bitwise\n    timerSeconds: secondsPerBlock << (viewNumber + 1),\n  };\n};\n\nexport const runConsensus = async ({\n  context,\n  node,\n  options: { privateKey, feeAddress, privateNet },\n  consensusContext,\n}: {\n  readonly context: Context;\n  readonly node: Node;\n  readonly options: InternalOptions;\n  readonly consensusContext: ConsensusContext;\n}): Promise<Result<Context>> => {\n  if (context.type === 'primary' && !(context instanceof RequestSentContext)) {\n    let requestSentContext: RequestSentContext;\n    if (context instanceof SignatureSentContext) {\n      requestSentContext = context.cloneRequestSent();\n    } else {\n      const nonce = utils.randomUInt64();\n      let mutableTransactions = Object.values(node.memPool);\n      const minerTransaction = await createMinerTransaction({\n        node,\n        feeAddress,\n        transactions: mutableTransactions,\n        nonce,\n      });\n\n      if (mutableTransactions.length >= node.blockchain.settings.maxTransactionsPerBlock) {\n        const mutableNetworkFees = await Promise.all(\n          mutableTransactions.map<Promise<[Transaction, BigNumber]>>(async (transaction) => {\n            const networkFee = await transaction.getNetworkFee(node.blockchain.feeContext);\n\n            return [transaction, new BigNumber(networkFee.toString(10))];\n          }),\n        );\n\n        mutableNetworkFees.sort(([first, a], [second, b]) => b.div(second.size).comparedTo(a.div(first.size)));\n        mutableTransactions = _.take(mutableNetworkFees, node.blockchain.settings.maxTransactionsPerBlock - 1)\n          // tslint:disable-next-line no-unused\n          .map(([transaction, _unused]) => transaction);\n      }\n      mutableTransactions.unshift(minerTransaction);\n      const [previousHeader, validators] = await Promise.all([\n        node.blockchain.header.get({ hashOrIndex: context.previousHash }),\n        node.blockchain.getValidators(mutableTransactions),\n      ]);\n\n      const newContext = new RequestSentContext({\n        viewNumber: context.viewNumber,\n        myIndex: context.myIndex,\n        primaryIndex: context.primaryIndex,\n        expectedView: context.expectedView,\n        validators: context.validators,\n        blockReceivedTimeSeconds: context.blockReceivedTimeSeconds,\n        transactions: mutableTransactions.reduce<{ [key: string]: Transaction }>(\n          (acc, transaction) => ({\n            ...acc,\n            [transaction.hashHex]: transaction,\n          }),\n          {},\n        ),\n        signatures: [],\n        header: {\n          type: 'new',\n          previousHash: context.previousHash,\n          transactionHashes: mutableTransactions.map((transaction) => transaction.hashHex),\n\n          blockIndex: context.blockIndex,\n          nonce,\n          timestamp: Math.max(consensusContext.nowSeconds(), previousHeader.timestamp + 1),\n\n          nextConsensus: crypto.getConsensusAddress(validators),\n        },\n      });\n\n      const mutableSignatures = [];\n      mutableSignatures[newContext.myIndex] = crypto.sign({\n        message: newContext.header.message,\n        privateKey,\n      });\n\n      requestSentContext = newContext.cloneSignatures({ signatures: mutableSignatures });\n    }\n\n    if (privateNet) {\n      return checkSignatures({ node, context: requestSentContext });\n    }\n\n    signAndRelay({\n      context: requestSentContext,\n      node,\n      privateKey,\n      consensusMessage: new PrepareRequestConsensusMessage({\n        viewNumber: requestSentContext.viewNumber,\n        nonce: requestSentContext.header.consensusData,\n        nextConsensus: requestSentContext.header.nextConsensus,\n        transactionHashes: requestSentContext.transactionHashes.map((hash) => common.hexToUInt256(hash)),\n        minerTransaction: commonUtils.nullthrows(\n          requestSentContext.transactions[requestSentContext.transactionHashes[0]],\n        ) as MinerTransaction,\n        signature: commonUtils.nullthrows(requestSentContext.signatures[requestSentContext.myIndex]),\n      }),\n    });\n\n    const { secondsPerBlock } = node.blockchain.settings;\n\n    return {\n      context: requestSentContext,\n      // tslint:disable-next-line no-bitwise\n      timerSeconds: secondsPerBlock << (requestSentContext.viewNumber + 1),\n    };\n  }\n\n  if (context instanceof RequestSentContext || context.type === 'backup') {\n    return requestChangeView({\n      context,\n      node,\n      privateKey,\n      consensusContext,\n    });\n  }\n\n  return { context };\n};\n"]}
|