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8295044: Implementation of Foreign Function and Memory API (Second Preview)

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Co-authored-by: Jorn Vernee <jvernee@openjdk.org>
Co-authored-by: Per Minborg <pminborg@openjdk.org>
Co-authored-by: Maurizio Cimadamore <mcimadamore@openjdk.org>
Reviewed-by: jvernee, pminborg, psandoz, alanb, sundar
This commit is contained in:
Maurizio Cimadamore 2022-12-05 13:49:53 +00:00
parent bd381886e0
commit 73baadceb6
252 changed files with 9221 additions and 7889 deletions
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1
src/java.base/share/classes/java/nio/Direct-X-Buffer.java.template
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@ -29,7 +29,6 @@ package java.nio;
import java.io.FileDescriptor;
import java.lang.foreign.MemorySegment;
import java.lang.foreign.MemorySession;
import java.lang.ref.Reference;
import java.util.Objects;
import jdk.internal.foreign.MemorySessionImpl;

11
src/java.base/share/classes/java/nio/channels/FileChannel.java
View file

@ -27,7 +27,7 @@ package java.nio.channels;
import java.io.IOException;
import java.lang.foreign.MemorySegment;
import java.lang.foreign.MemorySession;
import java.lang.foreign.SegmentScope;
import java.nio.ByteBuffer;
import java.nio.MappedByteBuffer;
import java.nio.channels.spi.AbstractInterruptibleChannel;
@ -1001,6 +1001,9 @@ public abstract class FileChannel
/**
* Maps a region of this channel's file into a new mapped memory segment,
* with the given offset, size and memory session.
* The {@linkplain MemorySegment#address() address} of the returned memory
* segment is the starting address of the mapped off-heap region backing
* the segment.
*
* <p> If the specified mapping mode is
* {@linkplain FileChannel.MapMode#READ_ONLY READ_ONLY}, the resulting
@ -1053,11 +1056,11 @@ public abstract class FileChannel
*
* @throws IllegalStateException
* If the {@code session} is not
* {@linkplain MemorySession#isAlive() alive}.
* {@linkplain SegmentScope#isAlive() alive}.
*
* @throws WrongThreadException
* If this method is called from a thread other than the thread
* {@linkplain MemorySession#ownerThread() owning} the
* {@linkplain SegmentScope#isAccessibleBy(Thread) owning} the
* {@code session}.
*
* @throws NonReadableChannelException
@ -1080,7 +1083,7 @@ public abstract class FileChannel
* @since 19
*/
@PreviewFeature(feature=PreviewFeature.Feature.FOREIGN)
public MemorySegment map(MapMode mode, long offset, long size, MemorySession session)
public MemorySegment map(MapMode mode, long offset, long size, SegmentScope session)
throws IOException
{
throw new UnsupportedOperationException();