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Add computeLedgerHash method

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This commit is contained in:
Chris Clark
2015-08-10 17:54:17 -07:00
parent 8c431b4ec3
commit 92fbc61f47
7 changed files with 594 additions and 0 deletions
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21
src/core/ledger.js
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@@ -1,4 +1,5 @@
'use strict';
const BigNumber = require('bignumber.js');
const Transaction = require('./transaction').Transaction;
const SHAMap = require('./shamap').SHAMap;
const SHAMapTreeNode = require('./shamap').SHAMapTreeNode;
@@ -156,4 +157,24 @@ Ledger.prototype.calc_account_hash = function(options) {
return account_map.hash();
};
// see rippled Ledger::updateHash()
Ledger.calculateLedgerHash =
Ledger.prototype.calculateLedgerHash = function(ledgerHeader) {
const so = new SerializedObject();
const prefix = 0x4C575200;
const totalCoins = (new BigNumber(ledgerHeader.total_coins)).toString(16);
stypes.Int32.serialize(so, Number(ledgerHeader.ledger_index));
stypes.Int64.serialize(so, totalCoins);
stypes.Hash256.serialize(so, ledgerHeader.parent_hash);
stypes.Hash256.serialize(so, ledgerHeader.transaction_hash);
stypes.Hash256.serialize(so, ledgerHeader.account_hash);
stypes.Int32.serialize(so, ledgerHeader.parent_close_time);
stypes.Int32.serialize(so, ledgerHeader.close_time);
stypes.Int8.serialize(so, ledgerHeader.close_time_resolution);
stypes.Int8.serialize(so, ledgerHeader.close_flags);
return so.hash(prefix).to_hex();
};
exports.Ledger = Ledger;