0N/A/*
2362N/A * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/**
0N/A * @test
0N/A * @bug 6348045
0N/A * @summary GZipOutputStream/InputStream goes critical(calls JNI_Get*Critical)
0N/A * and causes slowness. This test uses Deflater and Inflater directly.
0N/A */
0N/A
0N/Aimport java.io.*;
0N/Aimport java.nio.*;
0N/Aimport java.util.*;
0N/Aimport java.util.zip.*;
0N/A
0N/A/**
0N/A * This test runs Inflater and Defalter in a number of simultaneous threads,
0N/A * validating that the deflated & then inflated data matches the original
0N/A * data.
0N/A */
0N/Apublic class FlaterTest extends Thread {
0N/A private static final int DATA_LEN = 1024 * 128;
0N/A private static byte[] data;
0N/A
0N/A // If true, print extra info.
0N/A private static final boolean debug = false;
0N/A
0N/A // Set of Flater threads running.
0N/A private static Set flaters =
0N/A Collections.synchronizedSet(new HashSet());
0N/A
0N/A /** Fill in {@code data} with random values. */
0N/A static void createData() {
0N/A ByteBuffer bb = ByteBuffer.allocate(8);
0N/A ByteArrayOutputStream baos = new ByteArrayOutputStream();
0N/A for (int i = 0; i < DATA_LEN; i++) {
0N/A bb.putDouble(0, Math.random());
0N/A baos.write(bb.array(), 0, 8);
0N/A }
0N/A data = baos.toByteArray();
0N/A if (debug) System.out.println("data length is " + data.length);
0N/A }
0N/A
0N/A /** @return the length of the deflated {@code data}. */
0N/A private static int getDeflatedLength() throws Throwable {
0N/A int rc = 0;
0N/A Deflater deflater = new Deflater();
0N/A deflater.setInput(data);
0N/A deflater.finish();
0N/A byte[] out = new byte[data.length];
0N/A rc = deflater.deflate(out);
0N/A deflater.end();
0N/A if (debug) System.out.println("deflatedLength is " + rc);
0N/A return rc;
0N/A }
0N/A
0N/A /** Compares given bytes with those in {@code data}.
0N/A * @throws Exception if given bytes don't match {@code data}.
0N/A */
0N/A private static void validate(byte[] buf, int offset, int len) throws Exception {
0N/A for (int i = 0; i < len; i++ ) {
0N/A if (buf[i] != data[offset+i]) {
0N/A throw new Exception("mismatch at " + (offset + i));
0N/A }
0N/A }
0N/A }
0N/A
0N/A public static void realMain(String[] args) throws Throwable {
0N/A createData();
0N/A int numThreads = args.length > 0 ? Integer.parseInt(args[0]) : 5;
0N/A new FlaterTest().go(numThreads);
0N/A }
0N/A
0N/A synchronized private void go(int numThreads) throws Throwable {
0N/A int deflatedLength = getDeflatedLength();
0N/A
0N/A long time = System.currentTimeMillis();
0N/A for (int i = 0; i < numThreads; i++) {
0N/A Flater f = new Flater(deflatedLength);
0N/A flaters.add(f);
0N/A f.start();
0N/A }
0N/A while (flaters.size() != 0) {
0N/A try {
0N/A Thread.currentThread().sleep(10);
0N/A } catch (InterruptedException ex) {
0N/A unexpected(ex);
0N/A }
0N/A }
0N/A time = System.currentTimeMillis() - time;
0N/A System.out.println("Time needed for " + numThreads
0N/A + " threads to deflate/inflate: " + time + " ms.");
0N/A }
0N/A
0N/A /** Deflates and inflates data. */
0N/A static class Flater extends Thread {
0N/A private final int deflatedLength;
0N/A
0N/A private Flater(int length) {
0N/A this.deflatedLength = length;
0N/A }
0N/A
0N/A /** Deflates and inflates {@code data}. */
0N/A public void run() {
0N/A if (debug) System.out.println(getName() + " starting run()");
0N/A try {
0N/A byte[] deflated = DeflateData(deflatedLength);
0N/A InflateData(deflated);
0N/A } catch (Throwable t) {
0N/A t.printStackTrace();
0N/A fail(getName() + " failed");
0N/A } finally {
0N/A flaters.remove(this);
0N/A }
0N/A }
0N/A
0N/A /** Returns a copy of {@code data} in deflated form. */
0N/A private byte[] DeflateData(int length) throws Throwable {
0N/A Deflater deflater = new Deflater();
0N/A deflater.setInput(data);
0N/A deflater.finish();
0N/A byte[] out = new byte[length];
0N/A deflater.deflate(out);
0N/A return out;
0N/A }
0N/A
0N/A /** Inflate a byte array, comparing it with {@code data} during
0N/A * inflation.
0N/A * @throws Exception if inflated bytes don't match {@code data}.
0N/A */
0N/A private void InflateData(byte[] bytes) throws Throwable {
0N/A Inflater inflater = new Inflater();
0N/A inflater.setInput(bytes, 0, bytes.length);
0N/A int len = 1024 * 8;
0N/A int offset = 0;
0N/A while (inflater.getRemaining() > 0) {
0N/A byte[] buf = new byte[len];
0N/A int inflated = inflater.inflate(buf, 0, len);
0N/A validate(buf, offset, inflated);
0N/A offset += inflated;
0N/A }
0N/A }
0N/A }
0N/A
0N/A //--------------------- Infrastructure ---------------------------
0N/A static volatile int passed = 0, failed = 0;
0N/A static void pass() {passed++;}
0N/A static void fail() {failed++; Thread.dumpStack();}
0N/A static void fail(String msg) {System.out.println(msg); fail();}
0N/A static void unexpected(Throwable t) {failed++; t.printStackTrace();}
0N/A static void check(boolean cond) {if (cond) pass(); else fail();}
0N/A static void equal(Object x, Object y) {
0N/A if (x == null ? y == null : x.equals(y)) pass();
0N/A else fail(x + " not equal to " + y);}
0N/A public static void main(String[] args) throws Throwable {
0N/A try {realMain(args);} catch (Throwable t) {unexpected(t);}
0N/A System.out.println("\nPassed = " + passed + " failed = " + failed);
0N/A if (failed > 0) throw new AssertionError("Some tests failed");}
0N/A}