41 lines
634 B
JavaScript
41 lines
634 B
JavaScript
/*!
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* layout.js - mempool data layout for bcoin
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* Copyright (c) 2014-2017, Christopher Jeffrey (MIT License).
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* https://github.com/bcoin-org/bcoin
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*/
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'use strict';
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/*
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* Database Layout:
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* R -> tip hash
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* e[id][hash] -> entry
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*/
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var layout = {
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R: new Buffer([0x52]),
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e: function e(id, hash) {
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var key = new Buffer(37);
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key[0] = 0x65;
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key.writeUInt32BE(id, 1, true);
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write(key, hash, 5);
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return key;
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}
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};
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/*
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* Helpers
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*/
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function write(data, str, off) {
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if (Buffer.isBuffer(str))
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return str.copy(data, off);
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data.write(str, off, 'hex');
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}
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/*
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* Expose
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*/
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module.exports = layout;
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