aoqi@0: /*
aoqi@0:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test Test6941923.java
aoqi@0:  * @bug 6941923
aoqi@0:  * @summary test flags for gc log rotation
aoqi@0:  * @library /testlibrary
aoqi@0:  * @run main/othervm/timeout=600 Test6941923
aoqi@0:  *
aoqi@0:  */
aoqi@0: import com.oracle.java.testlibrary.*;
aoqi@0: import java.io.File;
aoqi@0: import java.io.FilenameFilter;
aoqi@0: import java.util.ArrayList;
aoqi@0: import java.util.Arrays;
aoqi@0: 
aoqi@0: class GCLoggingGenerator {
aoqi@0: 
aoqi@0:     public static void main(String[] args) throws Exception {
aoqi@0: 
aoqi@0:         long sizeOfLog = Long.parseLong(args[0]);
aoqi@0:         long lines = sizeOfLog / 80;
aoqi@0:         // full.GC generates ad least 1-line which is not shorter then 80 chars
aoqi@0:         // for some GC 2 shorter lines are generated
aoqi@0:         for (long i = 0; i < lines; i++) {
aoqi@0:             System.gc();
aoqi@0:         }
aoqi@0:     }
aoqi@0: }
aoqi@0: 
aoqi@0: public class Test6941923 {
aoqi@0: 
aoqi@0:     static final File currentDirectory = new File(".");
aoqi@0:     static final String logFileName = "test.log";
aoqi@0:     static final int logFileSizeK = 16;
aoqi@0:     static FilenameFilter logFilter = new FilenameFilter() {
aoqi@0:         @Override
aoqi@0:         public boolean accept(File dir, String name) {
aoqi@0:             return name.startsWith(logFileName);
aoqi@0:         }
aoqi@0:     };
aoqi@0: 
aoqi@0:     public static void cleanLogs() {
aoqi@0:         for (File log : currentDirectory.listFiles(logFilter)) {
aoqi@0:             if (!log.delete()) {
aoqi@0:                 throw new Error("Unable to delete " + log.getAbsolutePath());
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void runTest(int numberOfFiles) throws Exception {
aoqi@0: 
aoqi@0:         ArrayList<String> args = new ArrayList();
aoqi@0:         String[] logOpts = new String[]{
aoqi@0:             "-cp", System.getProperty("java.class.path"),
aoqi@0:             "-Xloggc:" + logFileName,
aoqi@0:             "-XX:-DisableExplicitGC", // to sure that System.gc() works
aoqi@0:             "-XX:+PrintGC", "-XX:+PrintGCDetails", "-XX:+UseGCLogFileRotation",
aoqi@0:             "-XX:NumberOfGCLogFiles=" + numberOfFiles,
aoqi@0:             "-XX:GCLogFileSize=" + logFileSizeK + "K", "-Xmx128M"};
aoqi@0:         // System.getProperty("test.java.opts") is '' if no options is set
aoqi@0:         // need to skip such empty
aoqi@0:         String[] externalVMopts = System.getProperty("test.java.opts").length() == 0
aoqi@0:                 ? new String[0]
aoqi@0:                 : System.getProperty("test.java.opts").split(" ");
aoqi@0:         args.addAll(Arrays.asList(externalVMopts));
aoqi@0:         args.addAll(Arrays.asList(logOpts));
aoqi@0:         args.add(GCLoggingGenerator.class.getName());
aoqi@0:         args.add(String.valueOf(numberOfFiles * logFileSizeK * 1024));
aoqi@0:         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args.toArray(new String[0]));
aoqi@0:         pb.redirectErrorStream(true);
aoqi@0:         pb.redirectOutput(new File(GCLoggingGenerator.class.getName() + ".log"));
aoqi@0:         Process process = pb.start();
aoqi@0:         int result = process.waitFor();
aoqi@0:         if (result != 0) {
aoqi@0:             throw new Error("Unexpected exit code = " + result);
aoqi@0:         }
aoqi@0:         File[] logs = currentDirectory.listFiles(logFilter);
aoqi@0:         int smallFilesNumber = 0;
aoqi@0:         for (File log : logs) {
aoqi@0:             if (log.length() < logFileSizeK * 1024) {
aoqi@0:                 smallFilesNumber++;
aoqi@0:             }
aoqi@0:         }
aoqi@0:         if (logs.length != numberOfFiles) {
aoqi@0:             throw new Error("There are only " + logs.length + " logs instead " + numberOfFiles);
aoqi@0:         }
aoqi@0:         if (smallFilesNumber > 1) {
aoqi@0:             throw new Error("There should maximum one log with size < " + logFileSizeK + "K");
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String[] args) throws Exception {
aoqi@0:         cleanLogs();
aoqi@0:         runTest(1);
aoqi@0:         cleanLogs();
aoqi@0:         runTest(3);
aoqi@0:         cleanLogs();
aoqi@0:     }
aoqi@0: }