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6770555551
pummel/test-net-throttle assumes that a couple of big write requests result in some of them getting queued because the kernel's send buffer fills up. Said assumption breaks on systems with large send buffers. Raise the size of the write request to ameliorate the issue.
88 lines
2.6 KiB
JavaScript
88 lines
2.6 KiB
JavaScript
// 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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var common = require('../common');
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var assert = require('assert');
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var net = require('net');
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var N = 1024 * 1024;
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var part_N = N / 3;
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var chars_recved = 0;
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var npauses = 0;
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console.log('build big string');
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var body = '';
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for (var i = 0; i < N; i++) {
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body += 'C';
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}
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console.log('start server on port ' + common.PORT);
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var server = net.createServer(function(connection) {
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connection.on('connect', function() {
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connection.write(body.slice(0, part_N));
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connection.write(body.slice(part_N, 2 * part_N));
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assert.equal(false, connection.write(body.slice(2 * part_N, N)));
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console.log('bufferSize: ' + connection.bufferSize);
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assert.ok(0 <= connection.bufferSize &&
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connection.bufferSize <= N);
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connection.end();
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});
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});
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server.listen(common.PORT, function() {
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var paused = false;
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var client = net.createConnection(common.PORT);
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client.setEncoding('ascii');
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client.on('data', function(d) {
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chars_recved += d.length;
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console.log('got ' + chars_recved);
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if (!paused) {
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client.pause();
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npauses += 1;
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paused = true;
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console.log('pause');
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var x = chars_recved;
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setTimeout(function() {
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assert.equal(chars_recved, x);
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client.resume();
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console.log('resume');
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paused = false;
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}, 100);
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}
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});
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client.on('end', function() {
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server.close();
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client.end();
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});
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});
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process.on('exit', function() {
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assert.equal(N, chars_recved);
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assert.equal(true, npauses > 2);
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});
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