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112 lines
3.3 KiB
JavaScript
112 lines
3.3 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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// We are demonstrating a problem with http.get when queueing up many
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// transfers. The server simply introduces some delay and sends a file.
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// Note this is demonstrated with connection: close.
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var common = require('../common');
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var assert = require('assert');
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var http = require('http');
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var fs = require('fs');
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var image = fs.readFileSync(common.fixturesDir + '/person.jpg');
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console.log('image.length = ' + image.length);
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var total = 100;
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var requests = 0, responses = 0;
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var server = http.Server(function(req, res) {
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if (++requests == total) {
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server.close();
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}
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setTimeout(function() {
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res.writeHead(200, {
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'content-type': 'image/jpeg',
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'connection': 'close',
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'content-length': image.length
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});
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res.end(image);
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}, 1);
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});
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server.listen(common.PORT, function() {
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for (var i = 0; i < total; i++) {
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(function() {
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var x = i;
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var opts = {
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port: common.PORT,
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headers: { connection: 'close' }
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};
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http.get(opts, function(res) {
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console.error('recv ' + x);
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var s = fs.createWriteStream(common.tmpDir + '/' + x + '.jpg');
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res.pipe(s);
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// TODO there should be a callback to pipe() that will allow
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// us to get a callback when the pipe is finished.
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res.on('end', function() {
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console.error('done ' + x);
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if (++responses == total) {
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s.on('close', checkFiles);
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}
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});
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}).on('error', function(e) {
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console.error('error! ', e.message);
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throw e;
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});
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})();
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}
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});
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var checkedFiles = false;
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function checkFiles() {
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// Should see 1.jpg, 2.jpg, ..., 100.jpg in tmpDir
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var files = fs.readdirSync(common.tmpDir);
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assert(total <= files.length);
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for (var i = 0; i < total; i++) {
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var fn = i + '.jpg';
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assert.ok(files.indexOf(fn) >= 0, "couldn't find '" + fn + "'");
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var stat = fs.statSync(common.tmpDir + '/' + fn);
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assert.equal(image.length, stat.size,
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"size doesn't match on '" + fn +
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"'. Got " + stat.size + ' bytes');
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}
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checkedFiles = true;
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}
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process.on('exit', function() {
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assert.equal(total, requests);
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assert.equal(total, responses);
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assert.ok(checkedFiles);
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});
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