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.
564 /**
565 * Removes the value of the current carrier thread's copy of a thread-local.
566 */
567 void removeCarrierThreadLocal(CarrierThreadLocal<?> local);
568
569 /**
570 * Returns the current thread's scoped values cache
571 */
572 Object[] scopedValueCache();
573
574 /**
575 * Sets the current thread's scoped values cache
576 */
577 void setScopedValueCache(Object[] cache);
578
579 /**
580 * Return the current thread's scoped value bindings.
581 */
582 Object scopedValueBindings();
583
584 /**
585 * Returns the innermost mounted continuation
586 */
587 Continuation getContinuation(Thread thread);
588
589 /**
590 * Sets the innermost mounted continuation
591 */
592 void setContinuation(Thread thread, Continuation continuation);
593
594 /**
595 * The ContinuationScope of virtual thread continuations
596 */
597 ContinuationScope virtualThreadContinuationScope();
598
599 /**
600 * Parks the current virtual thread.
601 * @throws WrongThreadException if the current thread is not a virtual thread
602 */
603 void parkVirtualThread();
604
605 /**
606 * Parks the current virtual thread for up to the given waiting time.
607 * @param nanos the maximum number of nanoseconds to wait
608 * @throws WrongThreadException if the current thread is not a virtual thread
609 */
610 void parkVirtualThread(long nanos);
611
612 /**
613 * Re-enables a virtual thread for scheduling. If the thread was parked then
614 * it will be unblocked, otherwise its next attempt to park will not block
615 * @param thread the virtual thread to unpark
616 * @throws IllegalArgumentException if the thread is not a virtual thread
617 * @throws RejectedExecutionException if the scheduler cannot accept a task
618 */
619 void unparkVirtualThread(Thread thread);
620
621 /**
622 * Returns the virtual thread default scheduler.
623 */
624 Executor virtualThreadDefaultScheduler();
625
626 /**
627 * Creates a new StackWalker
628 */
629 StackWalker newStackWalkerInstance(Set<StackWalker.Option> options,
630 ContinuationScope contScope,
631 Continuation continuation);
632 /**
633 * Returns '<loader-name>' @<id> if classloader has a name
634 * explicitly set otherwise <qualified-class-name> @<id>
635 */
636 String getLoaderNameID(ClassLoader loader);
637
638 /**
639 * Copy the string bytes to an existing segment, avoiding intermediate copies.
640 */
641 void copyToSegmentRaw(String string, MemorySegment segment, long offset);
642
643 /**
644 * 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.
563 /**
564 * Removes the value of the current carrier thread's copy of a thread-local.
565 */
566 void removeCarrierThreadLocal(CarrierThreadLocal<?> local);
567
568 /**
569 * Returns the current thread's scoped values cache
570 */
571 Object[] scopedValueCache();
572
573 /**
574 * Sets the current thread's scoped values cache
575 */
576 void setScopedValueCache(Object[] cache);
577
578 /**
579 * Return the current thread's scoped value bindings.
580 */
581 Object scopedValueBindings();
582
583 /**
584 * Returns the native thread ID for the given platform thread or 0 if not set.
585 */
586 long nativeThreadID(Thread thread);
587
588 /**
589 * Sets the native thread ID for the current platform thread.
590 */
591 void setThreadNativeID(long id);
592
593 /**
594 * Returns the innermost mounted continuation
595 */
596 Continuation getContinuation(Thread thread);
597
598 /**
599 * Sets the innermost mounted continuation
600 */
601 void setContinuation(Thread thread, Continuation continuation);
602
603 /**
604 * The ContinuationScope of virtual thread continuations
605 */
606 ContinuationScope virtualThreadContinuationScope();
607
608 /**
609 * Parks the current virtual thread.
610 * @throws WrongThreadException if the current thread is not a virtual thread
611 */
612 void parkVirtualThread();
613
614 /**
615 * Parks the current virtual thread for up to the given waiting time.
616 * @param nanos the maximum number of nanoseconds to wait
617 * @throws WrongThreadException if the current thread is not a virtual thread
618 */
619 void parkVirtualThread(long nanos);
620
621 /**
622 * Re-enables a virtual thread for scheduling. If the thread was parked then
623 * it will be unblocked, otherwise its next attempt to park will not block
624 * @param thread the virtual thread to unpark
625 * @throws IllegalArgumentException if the thread is not a virtual thread
626 * @throws RejectedExecutionException if the scheduler cannot accept a task
627 */
628 void unparkVirtualThread(Thread thread);
629
630 /**
631 * Returns the builtin virtual thread scheduler.
632 */
633 Thread.VirtualThreadScheduler builtinVirtualThreadScheduler();
634
635 /**
636 * Returns the default virtual thread scheduler.
637 */
638 Thread.VirtualThreadScheduler defaultVirtualThreadScheduler();
639
640 /**
641 * Returns the scheduler for the given virtual thread.
642 */
643 Thread.VirtualThreadScheduler virtualThreadScheduler(Thread thread);
644
645 /**
646 * Creates a new StackWalker
647 */
648 StackWalker newStackWalkerInstance(Set<StackWalker.Option> options,
649 ContinuationScope contScope,
650 Continuation continuation);
651 /**
652 * Returns '<loader-name>' @<id> if classloader has a name
653 * explicitly set otherwise <qualified-class-name> @<id>
654 */
655 String getLoaderNameID(ClassLoader loader);
656
657 /**
658 * Copy the string bytes to an existing segment, avoiding intermediate copies.
659 */
660 void copyToSegmentRaw(String string, MemorySegment segment, long offset);
661
662 /**
663 * Are the string bytes compatible with the given charset?
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