0 import static java.io.File.createTempFile;
1 import static java.lang.Long.parseLong;
2 import static java.lang.System.getProperty;
3 import static java.nio.file.Files.readAllBytes;
4 import static java.util.Arrays.stream;
5 import static java.util.stream.Collectors.joining;
6 import static java.util.stream.Collectors.toList;
7 import static jdk.test.lib.process.ProcessTools.createJavaProcessBuilder;
8
9 import java.io.BufferedReader;
10 import java.io.File;
11 import java.io.FileNotFoundException;
12 import java.io.FileOutputStream;
13 import java.io.IOException;
14 import java.io.InputStreamReader;
15 import java.util.Collection;
16 import java.util.stream.Stream;
17
18 /*
19 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
20 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
21 *
22 * This code is free software; you can redistribute it and/or modify it
23 * under the terms of the GNU General Public License version 2 only, as
24 * published by the Free Software Foundation.
25 *
26 * This code is distributed in the hope that it will be useful, but WITHOUT
27 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
28 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
29 * version 2 for more details (a copy is included in the LICENSE file that
30 * accompanied this code).
31 *
32 * You should have received a copy of the GNU General Public License version
33 * 2 along with this work; if not, write to the Free Software Foundation,
34 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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0 import static java.io.File.createTempFile;
1 import static java.lang.Long.parseLong;
2 import static java.lang.System.getProperty;
3 import static java.nio.file.Files.readAllBytes;
4 import static java.util.Arrays.stream;
5 import static java.util.Collections.emptyList;
6 import static java.util.stream.Collectors.joining;
7 import static java.util.stream.Collectors.toList;
8 import static jdk.test.lib.process.ProcessTools.createJavaProcessBuilder;
9
10 import java.io.BufferedReader;
11 import java.io.File;
12 import java.io.FileNotFoundException;
13 import java.io.FileOutputStream;
14 import java.io.IOException;
15 import java.io.InputStreamReader;
16 import java.util.Collection;
17 import java.util.Optional;
18 import java.util.stream.Stream;
19
20 /*
21 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
22 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
23 *
24 * This code is free software; you can redistribute it and/or modify it
25 * under the terms of the GNU General Public License version 2 only, as
26 * published by the Free Software Foundation.
27 *
28 * This code is distributed in the hope that it will be useful, but WITHOUT
29 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
30 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
31 * version 2 for more details (a copy is included in the LICENSE file that
32 * accompanied this code).
33 *
34 * You should have received a copy of the GNU General Public License version
35 * 2 along with this work; if not, write to the Free Software Foundation,
36 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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145 @SuppressWarnings("resource")
146 static void fakeLeakyJVM(boolean fake) {
147 if (fake) {
148 try {
149 new FileOutputStream("fakeLeakyJVM" + LOG_SUFFIX, false);
150 } catch (FileNotFoundException e) {
151 }
152 }
153 }
154
155 static Stream<String> run(String... args){
156 try {
157 return new BufferedReader(new InputStreamReader(new ProcessBuilder(args).start().getInputStream())).lines();
158 } catch (IOException e) {
159 throw new RuntimeException(e);
160 }
161 }
162
163 static Collection<String> outputContainingFilenames() {
164 long pid = ProcessHandle.current().pid();
165 String[] command = stream(new String[][]{
166 {"/usr/bin/lsof", "-p"},
167 {"/usr/sbin/lsof", "-p"},
168 {"/bin/lsof", "-p"},
169 {"/sbin/lsof", "-p"},
170 {"/usr/local/bin/lsof", "-p"},
171 {"/usr/bin/pfiles", "-F"}}) // Solaris
172 .filter(args -> new File(args[0]).exists())
173 .findFirst()
174 .orElseThrow(() -> new RuntimeException("could not find lsof-like command"));
175
176 System.out.println("using command: " + command[0] + " " + command[1]);
177 return run(command[0], command[1], "" + pid).collect(toList());
178 }
179
180 static boolean findOpenLogFile(Collection<String> fileNames) {
181 return fileNames.stream()
182 .filter(fileName -> fileName.contains(LOG_SUFFIX))
183 .findAny()
184 .isPresent();
185 }
186
187 static void windows(File f, long parentPid) throws InterruptedException {
188 System.out.println("waiting for pid: " + parentPid);
189 ProcessHandle.of(parentPid).ifPresent(handle -> handle.onExit().join());
190 System.out.println("trying to rename file to the same name: " + f);
191 System.out.println(f.renameTo(f) ? RETAINS_FD : LEAKS_FD); // this parts communicates a closed file descriptor by p
192 }
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147 @SuppressWarnings("resource")
148 static void fakeLeakyJVM(boolean fake) {
149 if (fake) {
150 try {
151 new FileOutputStream("fakeLeakyJVM" + LOG_SUFFIX, false);
152 } catch (FileNotFoundException e) {
153 }
154 }
155 }
156
157 static Stream<String> run(String... args){
158 try {
159 return new BufferedReader(new InputStreamReader(new ProcessBuilder(args).start().getInputStream())).lines();
160 } catch (IOException e) {
161 throw new RuntimeException(e);
162 }
163 }
164
165 static Collection<String> outputContainingFilenames() {
166 long pid = ProcessHandle.current().pid();
167 Optional<String[]> command = stream(new String[][]{
168 {"/usr/bin/lsof", "-p"},
169 {"/usr/sbin/lsof", "-p"},
170 {"/bin/lsof", "-p"},
171 {"/sbin/lsof", "-p"},
172 {"/usr/local/bin/lsof", "-p"},
173 {"/usr/bin/pfiles", "-F"}}) // Solaris
174 .filter(args -> new File(args[0]).exists())
175 .findFirst();
176
177 System.out.println("using command: " + command.map((c) -> c[0] + " " + c[1]).orElse("<not found>"));
178 return command.map(c -> run(c[0], c[1], "" + pid).collect(toList())).orElse(emptyList()); // if command can not be
179 }
180
181 static boolean findOpenLogFile(Collection<String> fileNames) {
182 return fileNames.stream()
183 .filter(fileName -> fileName.contains(LOG_SUFFIX))
184 .findAny()
185 .isPresent();
186 }
187
188 static void windows(File f, long parentPid) throws InterruptedException {
189 System.out.println("waiting for pid: " + parentPid);
190 ProcessHandle.of(parentPid).ifPresent(handle -> handle.onExit().join());
191 System.out.println("trying to rename file to the same name: " + f);
192 System.out.println(f.renameTo(f) ? RETAINS_FD : LEAKS_FD); // this parts communicates a closed file descriptor by p
193 }
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