1 /*
2 * Copyright (c) 2019, 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
25 import java.util.concurrent.atomic.AtomicInteger;
26 import java.util.List;
27 import java.util.HashMap;
28 import java.util.ArrayList;
29
30 public class ParallelLambdaLoad {
31 public static int NUM_THREADS = 10;
32 public static int MAX_CLASSES = 10;
33 public static AtomicInteger num_ready[];
34 public static boolean isRuntime;
35
36 public static void main(String args[]) throws Throwable {
37 isRuntime = (args.length == 1 && args[0].equals("run")) ? true : false;
38 num_ready = new AtomicInteger[MAX_CLASSES];
39 for (int i = 0; i < MAX_CLASSES; i++) {
40 num_ready[i] = new AtomicInteger();
41 }
42
43 ArrayList<Thread> list = new ArrayList<>();
44
45 list.add(new Thread(() -> {
46 DoSomething ds = new DoSomething(0);
47 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
48 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
49 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
50 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
51 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
52 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
53 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
54 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
55 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
56 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
57 }));
58 list.add(new Thread(() -> {
59 DoSomething ds = new DoSomething(1);
60 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
61 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
62 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
63 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
64 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
65 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
66 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
67 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
68 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
69 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
70 }));
71 list.add(new Thread(() -> {
72 DoSomething ds = new DoSomething(2);
73 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
74 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
75 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
76 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
77 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
78 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
79 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
80 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
81 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
82 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
83 }));
84 list.add(new Thread(() -> {
85 DoSomething ds = new DoSomething(3);
86 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
87 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
88 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
89 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
90 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
91 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
92 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
93 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
94 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
95 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
96 }));
97 list.add(new Thread(() -> {
98 DoSomething ds = new DoSomething(4);
99 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
100 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
101 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
102 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
103 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
104 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
105 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
106 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
107 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
108 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
109 }));
110 list.add(new Thread(() -> {
111 DoSomething ds = new DoSomething(5);
112 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
113 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
114 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
115 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
116 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
117 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
118 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
119 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
120 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
121 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
122 }));
123 list.add(new Thread(() -> {
124 DoSomething ds = new DoSomething(6);
125 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
126 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
127 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
128 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
129 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
130 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
131 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
132 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
133 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
134 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
135 }));
136 list.add(new Thread(() -> {
137 DoSomething ds = new DoSomething(7);
138 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
139 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
140 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
141 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
142 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
143 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
144 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
145 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
146 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
147 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
148 }));
149 list.add(new Thread(() -> {
150 DoSomething ds = new DoSomething(8);
151 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
152 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
153 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
154 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
155 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
156 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
157 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
158 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
159 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
160 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
161 }));
162 list.add(new Thread(() -> {
163 DoSomething ds = new DoSomething(9);
164 {ThreadUtil.WaitForLock(0); Runnable runner = ds::run; runner.run();}
165 {ThreadUtil.WaitForLock(1); Runnable runner = ds::run; runner.run();}
166 {ThreadUtil.WaitForLock(2); Runnable runner = ds::run; runner.run();}
167 {ThreadUtil.WaitForLock(3); Runnable runner = ds::run; runner.run();}
168 {ThreadUtil.WaitForLock(4); Runnable runner = ds::run; runner.run();}
169 {ThreadUtil.WaitForLock(5); Runnable runner = ds::run; runner.run();}
170 {ThreadUtil.WaitForLock(6); Runnable runner = ds::run; runner.run();}
171 {ThreadUtil.WaitForLock(7); Runnable runner = ds::run; runner.run();}
172 {ThreadUtil.WaitForLock(8); Runnable runner = ds::run; runner.run();}
173 {ThreadUtil.WaitForLock(9); Runnable runner = ds::run; runner.run();}
174 }));
175
176
177 for (Thread t : list) {
178 t.start();
179 }
180
181 for (Thread t : list) {
182 t.join();
183 }
184
185 synchronized(map) {
186 System.out.println("map size " + map.size());
187 int expectedSize = NUM_THREADS * MAX_CLASSES;
188 if (map.size() != expectedSize) {
189 throw new RuntimeException("Expected number of lamdba classes is " +
190 expectedSize + " but got only " + map.size());
191 }
192 }
193 }
194
195 static HashMap<Class<?>, Class<?>> map = new HashMap<>();
196 }
197
198 class DoSomething {
199 DoSomething(int dummy) {}
200
201 public void run() {
202 Class<?> c = LambdaVerification.getCallerClass(1);
203 synchronized(ParallelLambdaLoad.map) {
204 ParallelLambdaLoad.map.put(c, c);
205 }
206 LambdaVerification.verifyCallerIsArchivedLambda(ParallelLambdaLoad.isRuntime);
207 }
208 }
209
210 class ThreadUtil {
211 static void WaitForLock(int i) {
212 // Spin until every thread is ready to proceed
213 ParallelLambdaLoad.num_ready[i].incrementAndGet();
214 while (ParallelLambdaLoad.num_ready[i].intValue() < ParallelLambdaLoad.NUM_THREADS) {
215 ;
216 }
217 }
218 }