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JDK 17 Base module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\java.base.

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⏎ java/lang/invoke/MemoryAccessVarHandleFloatHelper.java

/*
 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */
package java.lang.invoke;

import jdk.internal.access.foreign.MemorySegmentProxy;
import jdk.internal.misc.ScopedMemoryAccess;
import jdk.internal.vm.annotation.ForceInline;

import java.lang.ref.Reference;

import java.util.Objects;

import static java.lang.invoke.MethodHandleStatics.UNSAFE;

// -- This file was mechanically generated: Do not edit! -- //

final class MemoryAccessVarHandleFloatHelper extends MemoryAccessVarHandleBase {

    static final boolean BE = UNSAFE.isBigEndian();

    static final ScopedMemoryAccess SCOPED_MEMORY_ACCESS = ScopedMemoryAccess.getScopedMemoryAccess();

    static final int VM_ALIGN = Float.BYTES - 1;

    static final VarForm FORM = new VarForm(MemoryAccessVarHandleFloatHelper.class, MemorySegmentProxy.class, float.class, long.class);

    MemoryAccessVarHandleFloatHelper(boolean skipAlignmentMaskCheck, boolean be, long length, long alignmentMask, boolean exact) {
        super(FORM, skipAlignmentMaskCheck, be, length, alignmentMask, exact);
    }

    @Override
    final MethodType accessModeTypeUncached(VarHandle.AccessType accessType) {
        return accessType.accessModeType(MemorySegmentProxy.class, float.class, long.class);
    }

    @Override
    public MemoryAccessVarHandleFloatHelper withInvokeExactBehavior() {
        return hasInvokeExactBehavior() ?
                this :
                new MemoryAccessVarHandleFloatHelper(skipAlignmentMaskCheck, be, length, alignmentMask, true);
    }

    @Override
    public MemoryAccessVarHandleFloatHelper withInvokeBehavior() {
        return !hasInvokeExactBehavior() ?
                this :
                new MemoryAccessVarHandleFloatHelper(skipAlignmentMaskCheck, be, length, alignmentMask, false);
    }

    @ForceInline
    static int convEndian(boolean big, float v) {
        int rv = Float.floatToRawIntBits(v);
        return big == BE ? rv : Integer.reverseBytes(rv);
    }

    @ForceInline
    static float convEndian(boolean big, int rv) {
        rv = big == BE ? rv : Integer.reverseBytes(rv);
        return Float.intBitsToFloat(rv);
    }

    @ForceInline
    static MemorySegmentProxy checkAddress(Object obb, long offset, long length, boolean ro) {
        MemorySegmentProxy oo = (MemorySegmentProxy)Objects.requireNonNull(obb);
        oo.checkAccess(offset, length, ro);
        return oo;
    }

    @ForceInline
    static long offset(boolean skipAlignmentMaskCheck, MemorySegmentProxy bb, long offset, long alignmentMask) {
        long address = offsetNoVMAlignCheck(skipAlignmentMaskCheck, bb, offset, alignmentMask);
        if ((address & VM_ALIGN) != 0) {
            throw MemoryAccessVarHandleBase.newIllegalStateExceptionForMisalignedAccess(address);
        }
        return address;
    }

    @ForceInline
    static long offsetNoVMAlignCheck(boolean skipAlignmentMaskCheck, MemorySegmentProxy bb, long offset, long alignmentMask) {
        long base = bb.unsafeGetOffset();
        long address = base + offset;
        if (skipAlignmentMaskCheck) {
            //note: the offset portion has already been aligned-checked, by construction
            if ((base & alignmentMask) != 0) {
                throw MemoryAccessVarHandleBase.newIllegalStateExceptionForMisalignedAccess(address);
            }
        } else {
            if ((address & alignmentMask) != 0) {
                throw MemoryAccessVarHandleBase.newIllegalStateExceptionForMisalignedAccess(address);
            }
        }
        return address;
    }

    @ForceInline
    static float get(VarHandle ob, Object obb, long base) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, true);
        int rawValue = SCOPED_MEMORY_ACCESS.getIntUnaligned(bb.scope(),
                bb.unsafeGetBase(),
                offsetNoVMAlignCheck(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                handle.be);
        return Float.intBitsToFloat(rawValue);
    }

    @ForceInline
    static void set(VarHandle ob, Object obb, long base, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        SCOPED_MEMORY_ACCESS.putIntUnaligned(bb.scope(),
                bb.unsafeGetBase(),
                offsetNoVMAlignCheck(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                Float.floatToRawIntBits(value),
                handle.be);
    }

    @ForceInline
    static float getVolatile(VarHandle ob, Object obb, long base) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, true);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.getIntVolatile(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask)));
    }

    @ForceInline
    static void setVolatile(VarHandle ob, Object obb, long base, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        SCOPED_MEMORY_ACCESS.putIntVolatile(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, value));
    }

    @ForceInline
    static float getAcquire(VarHandle ob, Object obb, long base) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, true);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.getIntAcquire(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask)));
    }

    @ForceInline
    static void setRelease(VarHandle ob, Object obb, long base, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        SCOPED_MEMORY_ACCESS.putIntRelease(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, value));
    }

    @ForceInline
    static float getOpaque(VarHandle ob, Object obb, long base) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, true);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.getIntOpaque(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask)));
    }

    @ForceInline
    static void setOpaque(VarHandle ob, Object obb, long base, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        SCOPED_MEMORY_ACCESS.putIntOpaque(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, value));
    }

    @ForceInline
    static boolean compareAndSet(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return SCOPED_MEMORY_ACCESS.compareAndSetInt(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, expected), convEndian(handle.be, value));
    }

    @ForceInline
    static float compareAndExchange(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.compareAndExchangeInt(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                                  convEndian(handle.be, expected), convEndian(handle.be, value)));
    }

    @ForceInline
    static float compareAndExchangeAcquire(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.compareAndExchangeIntAcquire(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                                  convEndian(handle.be, expected), convEndian(handle.be, value)));
    }

    @ForceInline
    static float compareAndExchangeRelease(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.compareAndExchangeIntRelease(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                                  convEndian(handle.be, expected), convEndian(handle.be, value)));
    }

    @ForceInline
    static boolean weakCompareAndSetPlain(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return SCOPED_MEMORY_ACCESS.weakCompareAndSetIntPlain(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, expected), convEndian(handle.be, value));
    }

    @ForceInline
    static boolean weakCompareAndSet(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return SCOPED_MEMORY_ACCESS.weakCompareAndSetInt(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, expected), convEndian(handle.be, value));
    }

    @ForceInline
    static boolean weakCompareAndSetAcquire(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return SCOPED_MEMORY_ACCESS.weakCompareAndSetIntAcquire(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, expected), convEndian(handle.be, value));
    }

    @ForceInline
    static boolean weakCompareAndSetRelease(VarHandle ob, Object obb, long base, float expected, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return SCOPED_MEMORY_ACCESS.weakCompareAndSetIntRelease(bb.scope(),
                bb.unsafeGetBase(),
                offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                convEndian(handle.be, expected), convEndian(handle.be, value));
    }

    @ForceInline
    static float getAndSet(VarHandle ob, Object obb, long base, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.getAndSetInt(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                                  convEndian(handle.be, value)));
    }

    @ForceInline
    static float getAndSetAcquire(VarHandle ob, Object obb, long base, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.getAndSetIntAcquire(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                                  convEndian(handle.be, value)));
    }

    @ForceInline
    static float getAndSetRelease(VarHandle ob, Object obb, long base, float value) {
        MemoryAccessVarHandleBase handle = (MemoryAccessVarHandleBase)ob;
        MemorySegmentProxy bb = checkAddress(obb, base, handle.length, false);
        return convEndian(handle.be,
                          SCOPED_MEMORY_ACCESS.getAndSetIntRelease(bb.scope(),
                                  bb.unsafeGetBase(),
                                  offset(handle.skipAlignmentMaskCheck, bb, base, handle.alignmentMask),
                                  convEndian(handle.be, value)));
    }
}

⏎ java/lang/invoke/MemoryAccessVarHandleFloatHelper.java

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File name: java.base-17.0.5-src.zip
File size: 8883851 bytes
Release date: 2022-09-13
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