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8343188: Investigate ways to simplify MemorySegment::ofBuffer

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Reviewed-by: mcimadamore
This commit is contained in:
Per Minborg 2024-11-04 11:06:25 +00:00
parent 7f131a9e1e
commit f69b6016d6
9 changed files with 307 additions and 66 deletions
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21
src/java.base/share/classes/java/nio/Heap-X-Buffer.java.template
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@ -28,6 +28,10 @@
package java.nio;
import java.lang.foreign.MemorySegment;
import jdk.internal.foreign.AbstractMemorySegmentImpl;
import jdk.internal.foreign.MemorySessionImpl;
import jdk.internal.foreign.SegmentFactories;
import jdk.internal.vm.annotation.ForceInline;
import java.util.Objects;
/**
@ -735,6 +739,23 @@ class Heap$Type$Buffer$RW$
#end[char]
#if[byte]
@ForceInline
@Override
int scaleShifts() {
return 0;
}
@ForceInline
@Override
AbstractMemorySegmentImpl heapSegment(Object base,
long offset,
long length,
boolean readOnly,
MemorySessionImpl bufferScope) {
return SegmentFactories.arrayOf$Type$Segment(base, offset, length, readOnly, bufferScope);
}
#end[byte]
#if[!byte]