63 lines
1.9 KiB
JavaScript
63 lines
1.9 KiB
JavaScript
var BufferReader = require('./bufferreader');
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var BufferWriter = require('./bufferwriter');
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var Blockheader = function Blockheader(version, prevblockidbuf, merklerootbuf, time, bits, nonce) {
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if (!(this instanceof Blockheader))
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return new Blockheader(version, prevblockidbuf, merklerootbuf, time, bits, nonce);
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if (typeof version === 'number') {
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this.set({
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version: version,
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prevblockidbuf: prevblockidbuf,
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merklerootbuf: merklerootbuf,
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time: time,
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bits: bits,
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nonce: nonce
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});
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} else if (version) {
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var obj = version;
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this.set(obj);
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}
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}
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Blockheader.prototype.set = function(obj) {
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this.version = typeof obj.version !== 'undefined' ? obj.version : this.version;
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this.prevblockidbuf = obj.prevblockidbuf || this.prevblockidbuf;
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this.merklerootbuf = obj.merklerootbuf || this.merklerootbuf;
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this.time = typeof obj.time !== 'undefined' ? obj.time : this.time;
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this.bits = typeof obj.bits !== 'undefined' ? obj.bits : this.bits;
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this.nonce = typeof obj.nonce !== 'undefined' ? obj.nonce : this.nonce;
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return this;
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};
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Blockheader.prototype.fromBuffer = function(buf) {
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return this.fromBufferReader(BufferReader(buf));
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};
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Blockheader.prototype.fromBufferReader = function(br) {
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this.version = br.readUInt32LE();
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this.prevblockidbuf = br.buffer(32);
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this.merklerootbuf = br.buffer(32);
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this.time = br.readUInt32LE();
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this.bits = br.readUInt32LE();
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this.nonce = br.readUInt32LE();
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return this;
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};
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Blockheader.prototype.toBuffer = function() {
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return this.toBufferWriter().concat();
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};
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Blockheader.prototype.toBufferWriter = function(bw) {
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if (!bw)
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bw = new BufferWriter();
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bw.writeUInt32LE(this.version);
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bw.write(this.prevblockidbuf);
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bw.write(this.merklerootbuf);
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bw.writeUInt32LE(this.time);
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bw.writeUInt32LE(this.bits);
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bw.writeUInt32LE(this.nonce);
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return bw;
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};
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module.exports = Blockheader;
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