blob: 1dfdfdb80c8d718629928864e67c1b9f09407861 (
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'use strict';
const common = require('../common');
const stream = require('stream');
// A writable stream which pushes data onto the stream which pipes into it,
// but only the first time it's written to. Since it's not paused at this time,
// a second write will occur. If the pipe increases awaitDrain twice, we'll
// never get subsequent chunks because 'drain' is only emitted once.
const writable = new stream.Writable({
write: common.mustCall((chunk, encoding, cb) => {
if (chunk.length === 32 * 1024) { // first chunk
readable.push(new Buffer(33 * 1024)); // above hwm
}
cb();
}, 3)
});
// A readable stream which produces two buffers.
const bufs = [new Buffer(32 * 1024), new Buffer(33 * 1024)]; // above hwm
const readable = new stream.Readable({
read: function() {
while (bufs.length > 0) {
this.push(bufs.shift());
}
}
});
readable.pipe(writable);
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