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8282191: Implementation of Foreign Function & Memory API (Preview)
Reviewed-by: erikj, jvernee, psandoz, dholmes, mchung
This commit is contained in:
Maurizio Cimadamore
parent
3be394e160
commit
2c5d136260
303 changed files with 33474 additions and 9186 deletions
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@ -0,0 +1,574 @@
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/*
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* Copyright (c) 2019, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang.invoke;
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import jdk.internal.foreign.AbstractMemorySegmentImpl;
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import jdk.internal.misc.ScopedMemoryAccess;
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import jdk.internal.vm.annotation.ForceInline;
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import java.lang.foreign.MemorySegment;
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import java.lang.ref.Reference;
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import java.util.Objects;
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import static java.lang.invoke.MethodHandleStatics.UNSAFE;
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#warn
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final class VarHandleSegmentAs$Type$s extends VarHandleSegmentViewBase {
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static final boolean BE = UNSAFE.isBigEndian();
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static final ScopedMemoryAccess SCOPED_MEMORY_ACCESS = ScopedMemoryAccess.getScopedMemoryAccess();
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static final int VM_ALIGN = $BoxType$.BYTES - 1;
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static final VarForm FORM = new VarForm(VarHandleSegmentAs$Type$s.class, MemorySegment.class, $type$.class, long.class);
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VarHandleSegmentAs$Type$s(boolean be, long length, long alignmentMask, boolean exact) {
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super(FORM, be, length, alignmentMask, exact);
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}
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@Override
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final MethodType accessModeTypeUncached(VarHandle.AccessType accessType) {
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return accessType.accessModeType(MemorySegment.class, $type$.class, long.class);
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}
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@Override
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public VarHandleSegmentAs$Type$s withInvokeExactBehavior() {
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return hasInvokeExactBehavior() ?
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this :
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new VarHandleSegmentAs$Type$s(be, length, alignmentMask, true);
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}
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@Override
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public VarHandleSegmentAs$Type$s withInvokeBehavior() {
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return !hasInvokeExactBehavior() ?
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this :
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new VarHandleSegmentAs$Type$s(be, length, alignmentMask, false);
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}
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#if[floatingPoint]
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@ForceInline
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static $rawType$ convEndian(boolean big, $type$ v) {
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$rawType$ rv = $Type$.$type$ToRaw$RawType$Bits(v);
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return big == BE ? rv : $RawBoxType$.reverseBytes(rv);
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}
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@ForceInline
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static $type$ convEndian(boolean big, $rawType$ rv) {
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rv = big == BE ? rv : $RawBoxType$.reverseBytes(rv);
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return $Type$.$rawType$BitsTo$Type$(rv);
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}
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#else[floatingPoint]
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#if[byte]
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@ForceInline
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static $type$ convEndian(boolean big, $type$ n) {
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return n;
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}
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#else[byte]
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@ForceInline
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static $type$ convEndian(boolean big, $type$ n) {
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return big == BE ? n : $BoxType$.reverseBytes(n);
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}
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#end[byte]
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#end[floatingPoint]
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@ForceInline
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static AbstractMemorySegmentImpl checkAddress(Object obb, long offset, long length, boolean ro) {
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AbstractMemorySegmentImpl oo = (AbstractMemorySegmentImpl)Objects.requireNonNull(obb);
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oo.checkAccess(offset, length, ro);
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return oo;
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}
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@ForceInline
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static long offset(AbstractMemorySegmentImpl bb, long offset, long alignmentMask) {
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long address = offsetNoVMAlignCheck(bb, offset, alignmentMask);
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if ((address & VM_ALIGN) != 0) {
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throw VarHandleSegmentViewBase.newIllegalArgumentExceptionForMisalignedAccess(address);
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}
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return address;
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}
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@ForceInline
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static long offsetNoVMAlignCheck(AbstractMemorySegmentImpl bb, long offset, long alignmentMask) {
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long base = bb.unsafeGetOffset();
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long address = base + offset;
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long maxAlignMask = bb.maxAlignMask();
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if (((address | maxAlignMask) & alignmentMask) != 0) {
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throw VarHandleSegmentViewBase.newIllegalArgumentExceptionForMisalignedAccess(address);
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}
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return address;
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}
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@ForceInline
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static $type$ get(VarHandle ob, Object obb, long base) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, true);
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#if[floatingPoint]
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$rawType$ rawValue = SCOPED_MEMORY_ACCESS.get$RawType$Unaligned(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offsetNoVMAlignCheck(bb, base, handle.alignmentMask),
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handle.be);
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return $Type$.$rawType$BitsTo$Type$(rawValue);
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#else[floatingPoint]
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#if[byte]
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return SCOPED_MEMORY_ACCESS.get$Type$(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offsetNoVMAlignCheck(bb, base, handle.alignmentMask));
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#else[byte]
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return SCOPED_MEMORY_ACCESS.get$Type$Unaligned(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offsetNoVMAlignCheck(bb, base, handle.alignmentMask),
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handle.be);
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#end[byte]
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#end[floatingPoint]
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}
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@ForceInline
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static void set(VarHandle ob, Object obb, long base, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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#if[floatingPoint]
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SCOPED_MEMORY_ACCESS.put$RawType$Unaligned(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offsetNoVMAlignCheck(bb, base, handle.alignmentMask),
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$Type$.$type$ToRaw$RawType$Bits(value),
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handle.be);
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#else[floatingPoint]
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#if[byte]
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SCOPED_MEMORY_ACCESS.put$Type$(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offsetNoVMAlignCheck(bb, base, handle.alignmentMask),
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value);
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#else[byte]
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SCOPED_MEMORY_ACCESS.put$Type$Unaligned(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offsetNoVMAlignCheck(bb, base, handle.alignmentMask),
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value,
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handle.be);
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#end[byte]
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#end[floatingPoint]
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}
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@ForceInline
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static $type$ getVolatile(VarHandle ob, Object obb, long base) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, true);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.get$RawType$Volatile(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask)));
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}
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@ForceInline
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static void setVolatile(VarHandle ob, Object obb, long base, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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SCOPED_MEMORY_ACCESS.put$RawType$Volatile(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, value));
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}
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@ForceInline
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static $type$ getAcquire(VarHandle ob, Object obb, long base) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, true);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.get$RawType$Acquire(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask)));
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}
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@ForceInline
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static void setRelease(VarHandle ob, Object obb, long base, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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SCOPED_MEMORY_ACCESS.put$RawType$Release(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, value));
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}
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@ForceInline
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static $type$ getOpaque(VarHandle ob, Object obb, long base) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, true);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.get$RawType$Opaque(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask)));
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}
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@ForceInline
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static void setOpaque(VarHandle ob, Object obb, long base, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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SCOPED_MEMORY_ACCESS.put$RawType$Opaque(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, value));
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}
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#if[CAS]
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@ForceInline
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static boolean compareAndSet(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return SCOPED_MEMORY_ACCESS.compareAndSet$RawType$(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value));
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}
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@ForceInline
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static $type$ compareAndExchange(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.compareAndExchange$RawType$(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value)));
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}
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@ForceInline
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static $type$ compareAndExchangeAcquire(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.compareAndExchange$RawType$Acquire(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value)));
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}
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@ForceInline
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static $type$ compareAndExchangeRelease(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.compareAndExchange$RawType$Release(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value)));
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}
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@ForceInline
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static boolean weakCompareAndSetPlain(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$Plain(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value));
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}
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@ForceInline
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static boolean weakCompareAndSet(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value));
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}
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@ForceInline
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static boolean weakCompareAndSetAcquire(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$Acquire(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value));
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}
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@ForceInline
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static boolean weakCompareAndSetRelease(VarHandle ob, Object obb, long base, $type$ expected, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$Release(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, expected), convEndian(handle.be, value));
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}
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@ForceInline
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static $type$ getAndSet(VarHandle ob, Object obb, long base, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.getAndSet$RawType$(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, value)));
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}
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@ForceInline
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static $type$ getAndSetAcquire(VarHandle ob, Object obb, long base, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.getAndSet$RawType$Acquire(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, value)));
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}
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@ForceInline
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static $type$ getAndSetRelease(VarHandle ob, Object obb, long base, $type$ value) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
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return convEndian(handle.be,
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SCOPED_MEMORY_ACCESS.getAndSet$RawType$Release(bb.sessionImpl(),
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bb.unsafeGetBase(),
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offset(bb, base, handle.alignmentMask),
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convEndian(handle.be, value)));
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}
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#end[CAS]
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#if[AtomicAdd]
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@ForceInline
|
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static $type$ getAndAdd(VarHandle ob, Object obb, long base, $type$ delta) {
|
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
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if (handle.be == BE) {
|
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return SCOPED_MEMORY_ACCESS.getAndAdd$RawType$(bb.sessionImpl(),
|
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bb.unsafeGetBase(),
|
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offset(bb, base, handle.alignmentMask),
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delta);
|
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} else {
|
||||
return getAndAddConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), delta);
|
||||
}
|
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}
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|
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@ForceInline
|
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static $type$ getAndAddAcquire(VarHandle ob, Object obb, long base, $type$ delta) {
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VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
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AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
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return SCOPED_MEMORY_ACCESS.getAndAdd$RawType$Acquire(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
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offset(bb, base, handle.alignmentMask),
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||||
delta);
|
||||
} else {
|
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return getAndAddConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), delta);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndAddRelease(VarHandle ob, Object obb, long base, $type$ delta) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndAdd$RawType$Release(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
delta);
|
||||
} else {
|
||||
return getAndAddConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), delta);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndAddConvEndianWithCAS(AbstractMemorySegmentImpl bb, long offset, $type$ delta) {
|
||||
$type$ nativeExpectedValue, expectedValue;
|
||||
Object base = bb.unsafeGetBase();
|
||||
do {
|
||||
nativeExpectedValue = SCOPED_MEMORY_ACCESS.get$RawType$Volatile(bb.sessionImpl(),base, offset);
|
||||
expectedValue = $RawBoxType$.reverseBytes(nativeExpectedValue);
|
||||
} while (!SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$(bb.sessionImpl(),base, offset,
|
||||
nativeExpectedValue, $RawBoxType$.reverseBytes(expectedValue + delta)));
|
||||
return expectedValue;
|
||||
}
|
||||
#end[AtomicAdd]
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||||
#if[Bitwise]
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseOr(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseOr$RawType$(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseOrConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseOrRelease(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseOr$RawType$Release(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseOrConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseOrAcquire(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseOr$RawType$Acquire(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseOrConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseOrConvEndianWithCAS(AbstractMemorySegmentImpl bb, long offset, $type$ value) {
|
||||
$type$ nativeExpectedValue, expectedValue;
|
||||
Object base = bb.unsafeGetBase();
|
||||
do {
|
||||
nativeExpectedValue = SCOPED_MEMORY_ACCESS.get$RawType$Volatile(bb.sessionImpl(),base, offset);
|
||||
expectedValue = $RawBoxType$.reverseBytes(nativeExpectedValue);
|
||||
} while (!SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$(bb.sessionImpl(),base, offset,
|
||||
nativeExpectedValue, $RawBoxType$.reverseBytes(expectedValue | value)));
|
||||
return expectedValue;
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseAnd(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseAnd$RawType$(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseAndConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseAndRelease(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseAnd$RawType$Release(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseAndConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseAndAcquire(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseAnd$RawType$Acquire(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseAndConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseAndConvEndianWithCAS(AbstractMemorySegmentImpl bb, long offset, $type$ value) {
|
||||
$type$ nativeExpectedValue, expectedValue;
|
||||
Object base = bb.unsafeGetBase();
|
||||
do {
|
||||
nativeExpectedValue = SCOPED_MEMORY_ACCESS.get$RawType$Volatile(bb.sessionImpl(),base, offset);
|
||||
expectedValue = $RawBoxType$.reverseBytes(nativeExpectedValue);
|
||||
} while (!SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$(bb.sessionImpl(),base, offset,
|
||||
nativeExpectedValue, $RawBoxType$.reverseBytes(expectedValue & value)));
|
||||
return expectedValue;
|
||||
}
|
||||
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseXor(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseXor$RawType$(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseXorConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseXorRelease(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseXor$RawType$Release(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseXorConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseXorAcquire(VarHandle ob, Object obb, long base, $type$ value) {
|
||||
VarHandleSegmentViewBase handle = (VarHandleSegmentViewBase)ob;
|
||||
AbstractMemorySegmentImpl bb = checkAddress(obb, base, handle.length, false);
|
||||
if (handle.be == BE) {
|
||||
return SCOPED_MEMORY_ACCESS.getAndBitwiseXor$RawType$Acquire(bb.sessionImpl(),
|
||||
bb.unsafeGetBase(),
|
||||
offset(bb, base, handle.alignmentMask),
|
||||
value);
|
||||
} else {
|
||||
return getAndBitwiseXorConvEndianWithCAS(bb, offset(bb, base, handle.alignmentMask), value);
|
||||
}
|
||||
}
|
||||
|
||||
@ForceInline
|
||||
static $type$ getAndBitwiseXorConvEndianWithCAS(AbstractMemorySegmentImpl bb, long offset, $type$ value) {
|
||||
$type$ nativeExpectedValue, expectedValue;
|
||||
Object base = bb.unsafeGetBase();
|
||||
do {
|
||||
nativeExpectedValue = SCOPED_MEMORY_ACCESS.get$RawType$Volatile(bb.sessionImpl(),base, offset);
|
||||
expectedValue = $RawBoxType$.reverseBytes(nativeExpectedValue);
|
||||
} while (!SCOPED_MEMORY_ACCESS.weakCompareAndSet$RawType$(bb.sessionImpl(),base, offset,
|
||||
nativeExpectedValue, $RawBoxType$.reverseBytes(expectedValue ^ value)));
|
||||
return expectedValue;
|
||||
}
|
||||
#end[Bitwise]
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue