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81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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// If everything aligns so that you do a read(n) of exactly the
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// remaining buffer, then make sure that 'end' still emits.
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const READSIZE = 100;
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const PUSHSIZE = 20;
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const PUSHCOUNT = 1000;
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const HWM = 50;
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const Readable = require('stream').Readable;
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const r = new Readable({
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highWaterMark: HWM
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});
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const rs = r._readableState;
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r._read = push;
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r.on('readable', function() {
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console.error('>> readable');
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let ret;
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do {
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console.error(` > read(${READSIZE})`);
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ret = r.read(READSIZE);
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console.error(` < ${ret && ret.length} (${rs.length} remain)`);
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} while (ret && ret.length === READSIZE);
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console.error('<< after read()',
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ret && ret.length,
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rs.needReadable,
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rs.length);
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});
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r.on('end', common.mustCall(function() {
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assert.strictEqual(pushes, PUSHCOUNT + 1);
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}));
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let pushes = 0;
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function push() {
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if (pushes > PUSHCOUNT)
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return;
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if (pushes++ === PUSHCOUNT) {
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console.error(' push(EOF)');
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return r.push(null);
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}
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console.error(` push #${pushes}`);
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if (r.push(Buffer.allocUnsafe(PUSHSIZE)))
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setTimeout(push, 1);
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}
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