view hotspot/test/compiler/unsafe/X-UnsafeAccessTest.java.template @ 45055:1c7bbc426b1e

8159995: Rename internal Unsafe.compare methods Reviewed-by: psandoz, dholmes Contributed-by: ron.pressler@oracle.com
author psandoz
date Thu, 11 May 2017 12:55:56 -0700
parents c2304140ed64
children
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/*
 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 8143628
 * @summary Test unsafe access for $type$
 *
#if[JdkInternalMisc]
 * @modules $module$/$package$:+open
#else[JdkInternalMisc]
 * @modules $module$/$package$
#end[JdkInternalMisc]
 * @run testng/othervm -Diters=100   -Xint                   compiler.unsafe.$Qualifier$UnsafeAccessTest$Type$
 * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 compiler.unsafe.$Qualifier$UnsafeAccessTest$Type$
 * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  compiler.unsafe.$Qualifier$UnsafeAccessTest$Type$
 * @run testng/othervm -Diters=20000                         compiler.unsafe.$Qualifier$UnsafeAccessTest$Type$
 */

package compiler.unsafe;

import org.testng.annotations.Test;

import java.lang.reflect.Field;

import static org.testng.Assert.*;

public class $Qualifier$UnsafeAccessTest$Type$ {
    static final int ITERS = Integer.getInteger("iters", 1);
    static final int WEAK_ATTEMPTS = Integer.getInteger("weakAttempts", 10);

    static final $package$.Unsafe UNSAFE;

    static final long V_OFFSET;

    static final Object STATIC_V_BASE;

    static final long STATIC_V_OFFSET;

    static int ARRAY_OFFSET;

    static int ARRAY_SHIFT;

    static {
        try {
            Field f = $package$.Unsafe.class.getDeclaredField("theUnsafe");
            f.setAccessible(true);
            UNSAFE = ($package$.Unsafe) f.get(null);
        } catch (Exception e) {
            throw new RuntimeException("Unable to get Unsafe instance.", e);
        }

        try {
            Field staticVField = $Qualifier$UnsafeAccessTest$Type$.class.getDeclaredField("static_v");
            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        try {
            Field vField = $Qualifier$UnsafeAccessTest$Type$.class.getDeclaredField("v");
            V_OFFSET = UNSAFE.objectFieldOffset(vField);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        ARRAY_OFFSET = UNSAFE.arrayBaseOffset($type$[].class);
        int ascale = UNSAFE.arrayIndexScale($type$[].class);
        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
    }

    static $type$ static_v;

    $type$ v;

    @Test
    public void testFieldInstance() {
        $Qualifier$UnsafeAccessTest$Type$ t = new $Qualifier$UnsafeAccessTest$Type$();
        for (int c = 0; c < ITERS; c++) {
            testAccess(t, V_OFFSET);
        }
    }

    @Test
    public void testFieldStatic() {
        for (int c = 0; c < ITERS; c++) {
            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
        }
    }

    @Test
    public void testArray() {
        $type$[] array = new $type$[10];
        for (int c = 0; c < ITERS; c++) {
            for (int i = 0; i < array.length; i++) {
                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
            }
        }
    }

#if[!Object]
#if[!boolean]
    @Test
    public void testArrayOffHeap() {
        int size = 10;
        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
        try {
            for (int c = 0; c < ITERS; c++) {
                for (int i = 0; i < size; i++) {
                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
                }
            }
        } finally {
            UNSAFE.freeMemory(address);
        }
    }

    @Test
    public void testArrayOffHeapDirect() {
        int size = 10;
        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
        try {
            for (int c = 0; c < ITERS; c++) {
                for (int i = 0; i < size; i++) {
                    testAccess((((long) i) << ARRAY_SHIFT) + address);
                }
            }
        } finally {
            UNSAFE.freeMemory(address);
        }
    }
#end[!boolean]
#end[!Object]

    static void testAccess(Object base, long offset) {
        // Plain
        {
            UNSAFE.put$Type$(base, offset, $value1$);
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "set $type$ value");
        }

        // Volatile
        {
            UNSAFE.put$Type$Volatile(base, offset, $value2$);
            $type$ x = UNSAFE.get$Type$Volatile(base, offset);
            assertEquals(x, $value2$, "putVolatile $type$ value");
        }

#if[!JdkInternalMisc]
#if[Ordered]
        // Lazy
        {
            UNSAFE.putOrdered$Type$(base, offset, $value1$);
            $type$ x = UNSAFE.get$Type$Volatile(base, offset);
            assertEquals(x, $value1$, "putRelease $type$ value");
        }
#end[Ordered]
#end[!JdkInternalMisc]

#if[JdkInternalMisc]
        // Lazy
        {
            UNSAFE.put$Type$Release(base, offset, $value1$);
            $type$ x = UNSAFE.get$Type$Acquire(base, offset);
            assertEquals(x, $value1$, "putRelease $type$ value");
        }

        // Opaque
        {
            UNSAFE.put$Type$Opaque(base, offset, $value2$);
            $type$ x = UNSAFE.get$Type$Opaque(base, offset);
            assertEquals(x, $value2$, "putOpaque $type$ value");
        }
#end[JdkInternalMisc]

#if[JdkInternalMisc]
#if[Unaligned]
        // Unaligned
        {
            UNSAFE.put$Type$Unaligned(base, offset, $value2$);
            $type$ x = UNSAFE.get$Type$Unaligned(base, offset);
            assertEquals(x, $value2$, "putUnaligned $type$ value");
        }

        {
            UNSAFE.put$Type$Unaligned(base, offset, $value1$, true);
            $type$ x = UNSAFE.get$Type$Unaligned(base, offset, true);
            assertEquals(x, $value1$, "putUnaligned big endian $type$ value");
        }

        {
            UNSAFE.put$Type$Unaligned(base, offset, $value2$, false);
            $type$ x = UNSAFE.get$Type$Unaligned(base, offset, false);
            assertEquals(x, $value2$, "putUnaligned little endian $type$ value");
        }
#end[Unaligned]
#end[JdkInternalMisc]

#if[CAS]
        UNSAFE.put$Type$(base, offset, $value1$);

        // Compare
        {
#if[JdkInternalMisc]
            boolean r = UNSAFE.compareAndSet$Type$(base, offset, $value1$, $value2$);
            assertEquals(r, true, "success compareAndSet $type$");
#else[JdkInternalMisc]
            boolean r = UNSAFE.compareAndSwap$Type$(base, offset, $value1$, $value2$);
            assertEquals(r, true, "success compareAndSwap $type$");
#end[JdkInternalMisc]
            $type$ x = UNSAFE.get$Type$(base, offset);
#if[JdkInternalMisc]
            assertEquals(x, $value2$, "success compareAndSet $type$ value");
#else[JdkInternalMisc]
            assertEquals(x, $value2$, "success compareAndSwap $type$ value");
#end[JdkInternalMisc]
        }

        {
#if[JdkInternalMisc]
            boolean r = UNSAFE.compareAndSet$Type$(base, offset, $value1$, $value3$);
            assertEquals(r, false, "failing compareAndSet $type$");
#else[JdkInternalMisc]
            boolean r = UNSAFE.compareAndSwap$Type$(base, offset, $value1$, $value3$);
            assertEquals(r, false, "failing compareAndSwap $type$");
#end[JdkInternalMisc]
            $type$ x = UNSAFE.get$Type$(base, offset);
#if[JdkInternalMisc]
            assertEquals(x, $value2$, "failing compareAndSet $type$ value");
#else[JdkInternalMisc]
            assertEquals(x, $value2$, "failing compareAndSwap $type$ value");
#end[JdkInternalMisc]
        }

#if[JdkInternalMisc]
        // Advanced compare
        {
            $type$ r = UNSAFE.compareAndExchange$Type$(base, offset, $value2$, $value1$);
            assertEquals(r, $value2$, "success compareAndExchange $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "success compareAndExchange $type$ value");
        }

        {
            $type$ r = UNSAFE.compareAndExchange$Type$(base, offset, $value2$, $value3$);
            assertEquals(r, $value1$, "failing compareAndExchange $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "failing compareAndExchange $type$ value");
        }

        {
            $type$ r = UNSAFE.compareAndExchange$Type$Acquire(base, offset, $value1$, $value2$);
            assertEquals(r, $value1$, "success compareAndExchangeAcquire $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value2$, "success compareAndExchangeAcquire $type$ value");
        }

        {
            $type$ r = UNSAFE.compareAndExchange$Type$Acquire(base, offset, $value1$, $value3$);
            assertEquals(r, $value2$, "failing compareAndExchangeAcquire $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value2$, "failing compareAndExchangeAcquire $type$ value");
        }

        {
            $type$ r = UNSAFE.compareAndExchange$Type$Release(base, offset, $value2$, $value1$);
            assertEquals(r, $value2$, "success compareAndExchangeRelease $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "success compareAndExchangeRelease $type$ value");
        }

        {
            $type$ r = UNSAFE.compareAndExchange$Type$Release(base, offset, $value2$, $value3$);
            assertEquals(r, $value1$, "failing compareAndExchangeRelease $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "failing compareAndExchangeRelease $type$ value");
        }

        {
            boolean success = false;
            for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
                success = UNSAFE.weakCompareAndSet$Type$Plain(base, offset, $value1$, $value2$);
            }
            assertEquals(success, true, "weakCompareAndSetPlain $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value2$, "weakCompareAndSetPlain $type$ value");
        }

        {
            boolean success = false;
            for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
                success = UNSAFE.weakCompareAndSet$Type$Acquire(base, offset, $value2$, $value1$);
            }
            assertEquals(success, true, "weakCompareAndSetAcquire $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "weakCompareAndSetAcquire $type$");
        }

        {
            boolean success = false;
            for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
                success = UNSAFE.weakCompareAndSet$Type$Release(base, offset, $value1$, $value2$);
            }
            assertEquals(success, true, "weakCompareAndSetRelease $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value2$, "weakCompareAndSetRelease $type$");
        }

        {
            boolean success = false;
            for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
                success = UNSAFE.weakCompareAndSet$Type$(base, offset, $value2$, $value1$);
            }
            assertEquals(success, true, "weakCompareAndSet $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "weakCompareAndSet $type$");
        }

#end[JdkInternalMisc]
        UNSAFE.put$Type$(base, offset, $value2$);

        // Compare set and get
        {
            $type$ o = UNSAFE.getAndSet$Type$(base, offset, $value1$);
            assertEquals(o, $value2$, "getAndSet $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, $value1$, "getAndSet $type$ value");
        }
#end[CAS]

#if[AtomicAdd]
        UNSAFE.put$Type$(base, offset, $value1$);

        // get and add, add and get
        {
            $type$ o = UNSAFE.getAndAdd$Type$(base, offset, $value2$);
            assertEquals(o, $value1$, "getAndAdd $type$");
            $type$ x = UNSAFE.get$Type$(base, offset);
            assertEquals(x, ($type$)($value1$ + $value2$), "getAndAdd $type$");
        }
#end[AtomicAdd]
    }

#if[!Object]
#if[!boolean]
    static void testAccess(long address) {
        // Plain
        {
            UNSAFE.put$Type$(address, $value1$);
            $type$ x = UNSAFE.get$Type$(address);
            assertEquals(x, $value1$, "set $type$ value");
        }
    }
#end[!boolean]
#end[!Object]
}