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clueclue
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Improve memory consumption for failed connection attempts
1 parent e8e53d6 commit 6f7690e

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3 files changed

+160
-4
lines changed

3 files changed

+160
-4
lines changed

‎composer.json

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -9,8 +9,8 @@
99
"react/dns": "^0.4.13",
1010
"react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3.5",
1111
"react/stream": "^1.0 || ^0.7.1",
12-
"react/promise": "^2.1 || ^1.2",
13-
"react/promise-timer": "~1.0"
12+
"react/promise": "^2.6.0 || ^1.2.1",
13+
"react/promise-timer": "dev-master as 1.4.0"
1414
},
1515
"require-dev": {
1616
"clue/block-react": "^1.2",

‎src/TcpConnector.php

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -112,7 +112,7 @@ private function waitForStreamOnce($stream)
112112
$resolve(new Connection($stream, $loop));
113113
}
114114
});
115-
}, function ($resolve, $reject, $progress) use ($loop, $stream) {
115+
}, function () use ($loop, $stream) {
116116
$loop->removeWriteStream($stream);
117117
fclose($stream);
118118

@@ -123,7 +123,6 @@ private function waitForStreamOnce($stream)
123123
}
124124
// @codeCoverageIgnoreEnd
125125

126-
$resolve = $reject = $progress = null;
127126
throw new RuntimeException('Cancelled while waiting for TCP/IP connection to be established');
128127
});
129128
}

‎tests/IntegrationTest.php

Lines changed: 157 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -114,6 +114,163 @@ public function testConnectingFailsIfDnsUsesInvalidResolver()
114114
Block\await($connector->connect('google.com:80'), $loop, self::TIMEOUT);
115115
}
116116

117+
public function testCancellingPendingConnectionWithoutTimeoutShouldNotCreateAnyGarbageReferences()
118+
{
119+
if (class_exists('React\Promise\When')) {
120+
$this->markTestSkipped('Not supported on legacy Promise v1 API');
121+
}
122+
123+
$loop = Factory::create();
124+
$connector = new Connector($loop, array('timeout' => false));
125+
126+
gc_collect_cycles();
127+
$promise = $connector->connect('8.8.8.8:80');
128+
$promise->cancel();
129+
unset($promise);
130+
131+
$this->assertEquals(0, gc_collect_cycles());
132+
}
133+
134+
public function testCancellingPendingConnectionShouldNotCreateAnyGarbageReferences()
135+
{
136+
if (class_exists('React\Promise\When')) {
137+
$this->markTestSkipped('Not supported on legacy Promise v1 API');
138+
}
139+
140+
$loop = Factory::create();
141+
$connector = new Connector($loop);
142+
143+
gc_collect_cycles();
144+
$promise = $connector->connect('8.8.8.8:80');
145+
$promise->cancel();
146+
unset($promise);
147+
148+
$this->assertEquals(0, gc_collect_cycles());
149+
}
150+
151+
public function testWaitingForRejectedConnectionShouldNotCreateAnyGarbageReferences()
152+
{
153+
if (class_exists('React\Promise\When')) {
154+
$this->markTestSkipped('Not supported on legacy Promise v1 API');
155+
}
156+
157+
$loop = Factory::create();
158+
$connector = new Connector($loop, array('timeout' => false));
159+
160+
gc_collect_cycles();
161+
162+
$wait = true;
163+
$promise = $connector->connect('127.0.0.1:1')->then(
164+
null,
165+
function ($e) use (&$wait) {
166+
$wait = false;
167+
throw $e;
168+
}
169+
);
170+
171+
// run loop for short period to ensure we detect connection refused error
172+
Block\sleep(0.01, $loop);
173+
if ($wait) {
174+
Block\sleep(0.2, $loop);
175+
if ($wait) {
176+
$this->fail('Connection attempt did not fail');
177+
}
178+
}
179+
unset($promise);
180+
181+
$this->assertEquals(0, gc_collect_cycles());
182+
}
183+
184+
/**
185+
* @requires PHP 7
186+
*/
187+
public function testWaitingForConnectionTimeoutShouldNotCreateAnyGarbageReferences()
188+
{
189+
if (class_exists('React\Promise\When')) {
190+
$this->markTestSkipped('Not supported on legacy Promise v1 API');
191+
}
192+
193+
$loop = Factory::create();
194+
$connector = new Connector($loop, array('timeout' => 0.001));
195+
196+
gc_collect_cycles();
197+
198+
$wait = true;
199+
$promise = $connector->connect('google.com:80')->then(
200+
null,
201+
function ($e) use (&$wait) {
202+
$wait = false;
203+
throw $e;
204+
}
205+
);
206+
207+
// run loop for short period to ensure we detect connection timeout error
208+
Block\sleep(0.01, $loop);
209+
if ($wait) {
210+
Block\sleep(0.2, $loop);
211+
if ($wait) {
212+
$this->fail('Connection attempt did not fail');
213+
}
214+
}
215+
unset($promise);
216+
217+
$this->assertEquals(0, gc_collect_cycles());
218+
}
219+
220+
public function testWaitingForInvalidDnsConnectionShouldNotCreateAnyGarbageReferences()
221+
{
222+
if (class_exists('React\Promise\When')) {
223+
$this->markTestSkipped('Not supported on legacy Promise v1 API');
224+
}
225+
226+
$loop = Factory::create();
227+
$connector = new Connector($loop, array('timeout' => false));
228+
229+
gc_collect_cycles();
230+
231+
$wait = true;
232+
$promise = $connector->connect('example.invalid:80')->then(
233+
null,
234+
function ($e) use (&$wait) {
235+
$wait = false;
236+
throw $e;
237+
}
238+
);
239+
240+
// run loop for short period to ensure we detect DNS error
241+
Block\sleep(0.01, $loop);
242+
if ($wait) {
243+
Block\sleep(0.2, $loop);
244+
if ($wait) {
245+
$this->fail('Connection attempt did not fail');
246+
}
247+
}
248+
unset($promise);
249+
250+
$this->assertEquals(0, gc_collect_cycles());
251+
}
252+
253+
public function testWaitingForSuccessfullyClosedConnectionShouldNotCreateAnyGarbageReferences()
254+
{
255+
if (class_exists('React\Promise\When')) {
256+
$this->markTestSkipped('Not supported on legacy Promise v1 API');
257+
}
258+
259+
$loop = Factory::create();
260+
$connector = new Connector($loop, array('timeout' => false));
261+
262+
gc_collect_cycles();
263+
$promise = $connector->connect('google.com:80')->then(
264+
function ($conn) {
265+
$conn->close();
266+
}
267+
);
268+
Block\await($promise, $loop, self::TIMEOUT);
269+
unset($promise);
270+
271+
$this->assertEquals(0, gc_collect_cycles());
272+
}
273+
117274
public function testConnectingFailsIfTimeoutIsTooSmall()
118275
{
119276
if (!function_exists('stream_socket_enable_crypto')) {

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