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8304265: Implementation of Foreign Function and Memory API (Third Preview)

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Co-authored-by: Maurizio Cimadamore <mcimadamore@openjdk.org>
Co-authored-by: Jorn Vernee <jvernee@openjdk.org>
Co-authored-by: Paul Sandoz <psandoz@openjdk.org>
Co-authored-by: Feilong Jiang <fjiang@openjdk.org>
Co-authored-by: Per Minborg <pminborg@openjdk.org>
Reviewed-by: erikj, jvernee, vlivanov, psandoz
This commit is contained in:
Per Minborg 2023-04-27 09:00:58 +00:00
parent 41d58533ac
commit cbccc4c817
267 changed files with 6947 additions and 8029 deletions
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12
src/java.base/share/classes/sun/nio/ch/FileChannelImpl.java
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@ -30,7 +30,7 @@ import java.io.FileDescriptor;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.lang.foreign.MemorySegment;
import java.lang.foreign.SegmentScope;
import java.lang.foreign.Arena;
import java.lang.ref.Cleaner.Cleanable;
import java.nio.ByteBuffer;
import java.nio.MappedByteBuffer;
@ -1206,12 +1206,12 @@ public class FileChannelImpl
@Override
public MemorySegment map(MapMode mode, long offset, long size,
SegmentScope session)
Arena arena)
throws IOException
{
Objects.requireNonNull(mode,"Mode is null");
Objects.requireNonNull(session, "Session is null");
MemorySessionImpl sessionImpl = (MemorySessionImpl) session;
Objects.requireNonNull(arena, "Arena is null");
MemorySessionImpl sessionImpl = MemorySessionImpl.toMemorySession(arena);
sessionImpl.checkValidState();
if (offset < 0)
throw new IllegalArgumentException("Requested bytes offset must be >= 0.");
@ -1228,7 +1228,7 @@ public class FileChannelImpl
if (unmapper != null) {
AbstractMemorySegmentImpl segment =
new MappedMemorySegmentImpl(unmapper.address(), unmapper, size,
readOnly, session);
readOnly, sessionImpl);
MemorySessionImpl.ResourceList.ResourceCleanup resource =
new MemorySessionImpl.ResourceList.ResourceCleanup() {
@Override
@ -1239,7 +1239,7 @@ public class FileChannelImpl
sessionImpl.addOrCleanupIfFail(resource);
return segment;
} else {
return new MappedMemorySegmentImpl.EmptyMappedMemorySegmentImpl(readOnly, sessionImpl);
return new MappedMemorySegmentImpl(0, null, 0, readOnly, sessionImpl);
}
}