1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @build DummyWebSocketServer
* @run testng/othervm
* -Djdk.internal.httpclient.debug=true
* -Djdk.internal.httpclient.websocket.debug=true
* BlowupOutputQueue
*/
import org.testng.annotations.Test;
import java.io.IOException;
import java.net.http.WebSocket;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import static java.net.http.HttpClient.newHttpClient;
import static org.testng.Assert.assertFalse;
public class BlowupOutputQueue extends PendingOperations {
CompletableFuture<WebSocket> cfText;
CompletableFuture<WebSocket> cfPing;
CompletableFuture<WebSocket> cfClose;
MockListener listener;
/*
* The idea is to arrange things such that the internal queue will be fully
* utilized and then make sure there won't be any errors caused by that.
*
* First, fill the queue with Text messages. Once done, send a Ping message.
* At this stage, there are at least 2 messages are in queue. Now, start
* receiving. Received Ping messages will cause automatic Pong replies. When
* all done, there will be at least 3 messages in the queue. (As at least
* the a single Ping has to be replied). Then send a Close message. Now
* there are at least 4 messages in the queue. Finally, receive the last
* message which is a Close message. This will cause an automatic reply with
* a Close message from the client side. All in all there should be at least
* 5 messages in the queue.
*/
@Test
public void full() throws Exception {
int N = 32;
int[] incoming = new int[2 * (N + 1)]; // 2 bytes per message
for (int i = 0; i < incoming.length - 2; i += 2) {
// <PING>
incoming[i + 0] = 0x89;
incoming[i + 1] = 0x00;
}
// <CLOSE>
incoming[incoming.length - 2] = 0x88;
incoming[incoming.length - 1] = 0x00;
repeatable(() -> {
CountDownLatch allButCloseReceived = new CountDownLatch(N);
server = Support.writingServer(incoming);
server.open();
listener = new MockListener() {
@Override
protected void onOpen0(WebSocket webSocket) {
/* do nothing */
}
@Override
protected void replenish(WebSocket webSocket) {
/* do nothing */
}
@Override
protected CompletionStage<?> onPing0(WebSocket webSocket,
ByteBuffer message) {
allButCloseReceived.countDown();
return null;
}
};
webSocket = newHttpClient().newWebSocketBuilder()
.buildAsync(server.getURI(), listener)
.join();
CharBuffer data = CharBuffer.allocate(65536);
for (int i = 0; ; i++) { // fill up the send buffer
long start = System.currentTimeMillis();
System.out.printf("begin cycle #%s at %s%n", i, start);
cfText = webSocket.sendText(data, true);
try {
cfText.get(MAX_WAIT_SEC, TimeUnit.SECONDS);
data.clear();
} catch (TimeoutException e) {
break;
} finally {
long stop = System.currentTimeMillis();
System.out.printf("end cycle #%s at %s (%s ms)%n", i, stop, stop - start);
}
}
cfPing = webSocket.sendPing(ByteBuffer.allocate(125));
webSocket.request(N);
allButCloseReceived.await();
webSocket.request(1); // Receive the last message: Close
return null;
}, () -> cfText.isDone());
List<MockListener.Invocation> invocations = listener.invocations();
cfClose = webSocket.sendClose(WebSocket.NORMAL_CLOSURE, "ok");
assertFalse(invocations.contains(new MockListener.OnError(webSocket, IOException.class)));
assertFalse(cfText.isDone());
assertFalse(cfPing.isDone());
assertFalse(cfClose.isDone());
}
}
|
