26 package jdk.internal.access;
27
28 import java.io.InputStream;
29 import java.io.PrintStream;
30 import java.lang.annotation.Annotation;
31 import java.lang.foreign.MemorySegment;
32 import java.lang.foreign.SymbolLookup;
33 import java.lang.invoke.MethodHandle;
34 import java.lang.invoke.MethodType;
35 import java.lang.module.ModuleDescriptor;
36 import java.lang.reflect.Executable;
37 import java.lang.reflect.Method;
38 import java.net.URI;
39 import java.nio.charset.CharacterCodingException;
40 import java.nio.charset.Charset;
41 import java.security.ProtectionDomain;
42 import java.util.List;
43 import java.util.Map;
44 import java.util.Set;
45 import java.util.concurrent.ConcurrentHashMap;
46 import java.util.concurrent.Executor;
47 import java.util.concurrent.RejectedExecutionException;
48 import java.util.stream.Stream;
49
50 import jdk.internal.loader.NativeLibraries;
51 import jdk.internal.misc.CarrierThreadLocal;
52 import jdk.internal.module.ServicesCatalog;
53 import jdk.internal.reflect.ConstantPool;
54 import jdk.internal.vm.Continuation;
55 import jdk.internal.vm.ContinuationScope;
56 import jdk.internal.vm.StackableScope;
57 import jdk.internal.vm.ThreadContainer;
58 import sun.reflect.annotation.AnnotationType;
59 import sun.nio.ch.Interruptible;
60
61 public interface JavaLangAccess {
62
63 /**
64 * Returns the list of {@code Method} objects for the declared public
65 * methods of this class or interface that have the specified method name
66 * and parameter types.
597
598 /**
599 * The ContinuationScope of virtual thread continuations
600 */
601 ContinuationScope virtualThreadContinuationScope();
602
603 /**
604 * Parks the current virtual thread.
605 * @throws WrongThreadException if the current thread is not a virtual thread
606 */
607 void parkVirtualThread();
608
609 /**
610 * Parks the current virtual thread for up to the given waiting time.
611 * @param nanos the maximum number of nanoseconds to wait
612 * @throws WrongThreadException if the current thread is not a virtual thread
613 */
614 void parkVirtualThread(long nanos);
615
616 /**
617 * Re-enables a virtual thread for scheduling. If the thread was parked then
618 * it will be unblocked, otherwise its next attempt to park will not block
619 * @param thread the virtual thread to unpark
620 * @throws IllegalArgumentException if the thread is not a virtual thread
621 * @throws RejectedExecutionException if the scheduler cannot accept a task
622 */
623 void unparkVirtualThread(Thread thread);
624
625 /**
626 * Returns the virtual thread default scheduler.
627 */
628 Executor virtualThreadDefaultScheduler();
629
630 /**
631 * Creates a new StackWalker
632 */
633 StackWalker newStackWalkerInstance(Set<StackWalker.Option> options,
634 ContinuationScope contScope,
635 Continuation continuation);
636 /**
637 * Returns '<loader-name>' @<id> if classloader has a name
638 * explicitly set otherwise <qualified-class-name> @<id>
639 */
640 String getLoaderNameID(ClassLoader loader);
641
642 /**
643 * Copy the string bytes to an existing segment, avoiding intermediate copies.
644 */
645 void copyToSegmentRaw(String string, MemorySegment segment, long offset, int srcIndex, int srcLength);
646
647 /**
648 * Are the string bytes compatible with the given charset?
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26 package jdk.internal.access;
27
28 import java.io.InputStream;
29 import java.io.PrintStream;
30 import java.lang.annotation.Annotation;
31 import java.lang.foreign.MemorySegment;
32 import java.lang.foreign.SymbolLookup;
33 import java.lang.invoke.MethodHandle;
34 import java.lang.invoke.MethodType;
35 import java.lang.module.ModuleDescriptor;
36 import java.lang.reflect.Executable;
37 import java.lang.reflect.Method;
38 import java.net.URI;
39 import java.nio.charset.CharacterCodingException;
40 import java.nio.charset.Charset;
41 import java.security.ProtectionDomain;
42 import java.util.List;
43 import java.util.Map;
44 import java.util.Set;
45 import java.util.concurrent.ConcurrentHashMap;
46 import java.util.concurrent.RejectedExecutionException;
47 import java.util.stream.Stream;
48
49 import jdk.internal.loader.NativeLibraries;
50 import jdk.internal.misc.CarrierThreadLocal;
51 import jdk.internal.module.ServicesCatalog;
52 import jdk.internal.reflect.ConstantPool;
53 import jdk.internal.vm.Continuation;
54 import jdk.internal.vm.ContinuationScope;
55 import jdk.internal.vm.StackableScope;
56 import jdk.internal.vm.ThreadContainer;
57 import sun.reflect.annotation.AnnotationType;
58 import sun.nio.ch.Interruptible;
59
60 public interface JavaLangAccess {
61
62 /**
63 * Returns the list of {@code Method} objects for the declared public
64 * methods of this class or interface that have the specified method name
65 * and parameter types.
596
597 /**
598 * The ContinuationScope of virtual thread continuations
599 */
600 ContinuationScope virtualThreadContinuationScope();
601
602 /**
603 * Parks the current virtual thread.
604 * @throws WrongThreadException if the current thread is not a virtual thread
605 */
606 void parkVirtualThread();
607
608 /**
609 * Parks the current virtual thread for up to the given waiting time.
610 * @param nanos the maximum number of nanoseconds to wait
611 * @throws WrongThreadException if the current thread is not a virtual thread
612 */
613 void parkVirtualThread(long nanos);
614
615 /**
616 * Re-enables a virtual thread for scheduling. If the thread is parked then it will
617 * be scheduled to continue, otherwise its next attempt to park will not block.
618 * @param thread the virtual thread to unpark
619 * @throws IllegalArgumentException if the thread is not a virtual thread
620 * @throws RejectedExecutionException if the scheduler cannot accept a task
621 */
622 void unparkVirtualThread(Thread thread);
623
624 /**
625 * Returns the builtin virtual thread scheduler.
626 */
627 Thread.VirtualThreadScheduler builtinVirtualThreadScheduler();
628
629 /**
630 * Returns the default virtual thread scheduler.
631 */
632 Thread.VirtualThreadScheduler defaultVirtualThreadScheduler();
633
634 /**
635 * Creates a new StackWalker
636 */
637 StackWalker newStackWalkerInstance(Set<StackWalker.Option> options,
638 ContinuationScope contScope,
639 Continuation continuation);
640 /**
641 * Returns '<loader-name>' @<id> if classloader has a name
642 * explicitly set otherwise <qualified-class-name> @<id>
643 */
644 String getLoaderNameID(ClassLoader loader);
645
646 /**
647 * Copy the string bytes to an existing segment, avoiding intermediate copies.
648 */
649 void copyToSegmentRaw(String string, MemorySegment segment, long offset, int srcIndex, int srcLength);
650
651 /**
652 * Are the string bytes compatible with the given charset?
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