mirror of https://github.com/jkjoy/sunpeiwen.git
25 lines
449 B
JavaScript
25 lines
449 B
JavaScript
'use strict';
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const { Transform } = require('stream');
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class CacheStream extends Transform {
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constructor() {
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super();
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this._cache = [];
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}
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_transform(chunk, enc, callback) {
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const buf = chunk instanceof Buffer ? chunk : Buffer.from(chunk, enc);
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this._cache.push(buf);
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this.push(buf);
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callback();
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}
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getCache() {
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return Buffer.concat(this._cache);
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}
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}
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module.exports = CacheStream;
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