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http: allow async createConnection()
This commit adds support for async createConnection() implementations and is still backwards compatible with synchronous createConnection() implementations. This commit also makes the http client more friendly with generic stream objects produced by createConnection() by checking stream.writable instead of stream.destroyed as the latter is currently a net.Socket-ism and not set by the core stream implementations. PR-URL: #4638 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,27 +1,61 @@ | ||
| 'use strict'; | ||
| var common = require('../common'); | ||
| var assert = require('assert'); | ||
| var http = require('http'); | ||
| var net = require('net'); | ||
| const common = require('../common'); | ||
| const http = require('http'); | ||
| const net = require('net'); | ||
| const assert = require('assert'); | ||
|
|
||
| var create = 0; | ||
| var response = 0; | ||
| process.on('exit', function() { | ||
| assert.equal(1, create, 'createConnection() http option was not called'); | ||
| assert.equal(1, response, 'http server "request" callback was not called'); | ||
| }); | ||
|
|
||
| var server = http.createServer(function(req, res) { | ||
| const server = http.createServer(common.mustCall(function(req, res) { | ||
| res.end(); | ||
| response++; | ||
| }).listen(common.PORT, '127.0.0.1', function() { | ||
| http.get({ createConnection: createConnection }, function(res) { | ||
| }, 4)).listen(common.PORT, '127.0.0.1', function() { | ||
| let fn = common.mustCall(createConnection); | ||
| http.get({ createConnection: fn }, function(res) { | ||
| res.resume(); | ||
| server.close(); | ||
| fn = common.mustCall(createConnectionAsync); | ||
| http.get({ createConnection: fn }, function(res) { | ||
| res.resume(); | ||
| fn = common.mustCall(createConnectionBoth1); | ||
| http.get({ createConnection: fn }, function(res) { | ||
| res.resume(); | ||
| fn = common.mustCall(createConnectionBoth2); | ||
| http.get({ createConnection: fn }, function(res) { | ||
| res.resume(); | ||
| fn = common.mustCall(createConnectionError); | ||
| http.get({ createConnection: fn }, function(res) { | ||
| assert.fail(null, null, 'Unexpected response callback'); | ||
| }).on('error', common.mustCall(function(err) { | ||
| assert.equal(err.message, 'Could not create socket'); | ||
| server.close(); | ||
| })); | ||
| }); | ||
| }); | ||
| }); | ||
| }); | ||
| }); | ||
|
|
||
| function createConnection() { | ||
| create++; | ||
| return net.createConnection(common.PORT, '127.0.0.1'); | ||
| } | ||
|
|
||
| function createConnectionAsync(options, cb) { | ||
| setImmediate(function() { | ||
| cb(null, net.createConnection(common.PORT, '127.0.0.1')); | ||
| }); | ||
| } | ||
|
|
||
| function createConnectionBoth1(options, cb) { | ||
| const socket = net.createConnection(common.PORT, '127.0.0.1'); | ||
| setImmediate(function() { | ||
| cb(null, socket); | ||
| }); | ||
| return socket; | ||
| } | ||
|
|
||
| function createConnectionBoth2(options, cb) { | ||
| const socket = net.createConnection(common.PORT, '127.0.0.1'); | ||
| cb(null, socket); | ||
| return socket; | ||
| } | ||
|
|
||
| function createConnectionError(options, cb) { | ||
| process.nextTick(cb, new Error('Could not create socket')); | ||
| } |