1 /*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 import java.io.*;
25 import java.nio.ByteBuffer;
26
27 import jdk.incubator.http.internal.common.ByteBufferReference;
28 import jdk.incubator.http.internal.common.Queue;
29 import jdk.incubator.http.internal.frame.DataFrame;
30
31 /**
32 * OutputStream. Incoming window updates handled by the main connection
33 * reader thread.
34 */
35 @SuppressWarnings({"rawtypes","unchecked"})
36 class BodyOutputStream extends OutputStream {
37 final static byte[] EMPTY_BARRAY = new byte[0];
38
39 final int streamid;
40 int window;
41 boolean closed;
42 boolean goodToGo = false; // not allowed to send until headers sent
43 final Http2TestServerConnection conn;
44 final Queue outputQ;
45
46 BodyOutputStream(int streamid, int initialWindow, Http2TestServerConnection conn) {
47 this.window = initialWindow;
48 this.streamid = streamid;
49 this.conn = conn;
50 this.outputQ = conn.outputQ;
51 conn.registerStreamWindowUpdater(streamid, this::updateWindow);
52 }
53
54 // called from connection reader thread as all incoming window
55 // updates are handled there.
56 synchronized void updateWindow(int update) {
57 window += update;
58 notifyAll();
59 }
60
61 void waitForWindow(int demand) throws InterruptedException {
83 if (closed) {
84 throw new IOException("closed");
85 }
86
87 if (!goodToGo) {
88 throw new IllegalStateException("sendResponseHeaders must be called first");
89 }
90 try {
91 waitForWindow(len);
92 send(buf, offset, len, 0);
93 } catch (InterruptedException ex) {
94 throw new IOException(ex);
95 }
96 }
97
98 private void send(byte[] buf, int offset, int len, int flags) throws IOException {
99 ByteBuffer buffer = ByteBuffer.allocate(len);
100 buffer.put(buf, offset, len);
101 buffer.flip();
102 assert streamid != 0;
103 DataFrame df = new DataFrame(streamid, flags, ByteBufferReference.of(buffer));
104 outputQ.put(df);
105 }
106
107 byte[] one = new byte[1];
108
109 @Override
110 public void write(int b) throws IOException {
111 one[0] = (byte) b;
112 write(one, 0, 1);
113 }
114
115 void closeInternal() {
116 closed = true;
117 }
118
119 @Override
120 public void close() {
121 if (closed) {
122 return;
123 }
124 closed = true;
125 try {
126 send(EMPTY_BARRAY, 0, 0, DataFrame.END_STREAM);
127 } catch (IOException ex) {
128 System.err.println("TestServer: OutputStream.close exception: " + ex);
129 ex.printStackTrace();
130 }
131 }
132 }
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1 /*
2 * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 import java.io.*;
25 import java.nio.ByteBuffer;
26
27 import jdk.incubator.http.internal.frame.DataFrame;
28
29 /**
30 * OutputStream. Incoming window updates handled by the main connection
31 * reader thread.
32 */
33 @SuppressWarnings({"rawtypes","unchecked"})
34 class BodyOutputStream extends OutputStream {
35 final static byte[] EMPTY_BARRAY = new byte[0];
36
37 final int streamid;
38 int window;
39 volatile boolean closed;
40 boolean goodToGo = false; // not allowed to send until headers sent
41 final Http2TestServerConnection conn;
42 final Queue outputQ;
43
44 BodyOutputStream(int streamid, int initialWindow, Http2TestServerConnection conn) {
45 this.window = initialWindow;
46 this.streamid = streamid;
47 this.conn = conn;
48 this.outputQ = conn.outputQ;
49 conn.registerStreamWindowUpdater(streamid, this::updateWindow);
50 }
51
52 // called from connection reader thread as all incoming window
53 // updates are handled there.
54 synchronized void updateWindow(int update) {
55 window += update;
56 notifyAll();
57 }
58
59 void waitForWindow(int demand) throws InterruptedException {
81 if (closed) {
82 throw new IOException("closed");
83 }
84
85 if (!goodToGo) {
86 throw new IllegalStateException("sendResponseHeaders must be called first");
87 }
88 try {
89 waitForWindow(len);
90 send(buf, offset, len, 0);
91 } catch (InterruptedException ex) {
92 throw new IOException(ex);
93 }
94 }
95
96 private void send(byte[] buf, int offset, int len, int flags) throws IOException {
97 ByteBuffer buffer = ByteBuffer.allocate(len);
98 buffer.put(buf, offset, len);
99 buffer.flip();
100 assert streamid != 0;
101 DataFrame df = new DataFrame(streamid, flags, buffer);
102 outputQ.put(df);
103 }
104
105 byte[] one = new byte[1];
106
107 @Override
108 public void write(int b) throws IOException {
109 one[0] = (byte) b;
110 write(one, 0, 1);
111 }
112
113 void closeInternal() {
114 closed = true;
115 }
116
117 @Override
118 public void close() {
119 if (closed) return;
120 synchronized (this) {
121 if (closed) return;
122 closed = true;
123 }
124 try {
125 send(EMPTY_BARRAY, 0, 0, DataFrame.END_STREAM);
126 } catch (IOException ex) {
127 System.err.println("TestServer: OutputStream.close exception: " + ex);
128 ex.printStackTrace();
129 }
130 }
131 }
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