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.
553 /**
554 * Removes the value of the current carrier thread's copy of a thread-local.
555 */
556 void removeCarrierThreadLocal(CarrierThreadLocal<?> local);
557
558 /**
559 * Returns the current thread's scoped values cache
560 */
561 Object[] scopedValueCache();
562
563 /**
564 * Sets the current thread's scoped values cache
565 */
566 void setScopedValueCache(Object[] cache);
567
568 /**
569 * Return the current thread's scoped value bindings.
570 */
571 Object scopedValueBindings();
572
573 /**
574 * Returns the innermost mounted continuation
575 */
576 Continuation getContinuation(Thread thread);
577
578 /**
579 * Sets the innermost mounted continuation
580 */
581 void setContinuation(Thread thread, Continuation continuation);
582
583 /**
584 * The ContinuationScope of virtual thread continuations
585 */
586 ContinuationScope virtualThreadContinuationScope();
587
588 /**
589 * Parks the current virtual thread.
590 * @throws WrongThreadException if the current thread is not a virtual thread
591 */
592 void parkVirtualThread();
593
594 /**
595 * Parks the current virtual thread for up to the given waiting time.
596 * @param nanos the maximum number of nanoseconds to wait
597 * @throws WrongThreadException if the current thread is not a virtual thread
598 */
599 void parkVirtualThread(long nanos);
600
601 /**
602 * Re-enables a virtual thread for scheduling. If the thread was parked then
603 * it will be unblocked, otherwise its next attempt to park will not block
604 * @param thread the virtual thread to unpark
605 * @throws IllegalArgumentException if the thread is not a virtual thread
606 * @throws RejectedExecutionException if the scheduler cannot accept a task
607 */
608 void unparkVirtualThread(Thread thread);
609
610 /**
611 * Returns the virtual thread default scheduler.
612 */
613 Executor virtualThreadDefaultScheduler();
614
615 /**
616 * Creates a new StackWalker
617 */
618 StackWalker newStackWalkerInstance(Set<StackWalker.Option> options,
619 ContinuationScope contScope,
620 Continuation continuation);
621 /**
622 * Returns '<loader-name>' @<id> if classloader has a name
623 * explicitly set otherwise <qualified-class-name> @<id>
624 */
625 String getLoaderNameID(ClassLoader loader);
626
627 /**
628 * Copy the string bytes to an existing segment, avoiding intermediate copies.
629 */
630 void copyToSegmentRaw(String string, MemorySegment segment, long offset);
631
632 /**
633 * 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.
552 /**
553 * Removes the value of the current carrier thread's copy of a thread-local.
554 */
555 void removeCarrierThreadLocal(CarrierThreadLocal<?> local);
556
557 /**
558 * Returns the current thread's scoped values cache
559 */
560 Object[] scopedValueCache();
561
562 /**
563 * Sets the current thread's scoped values cache
564 */
565 void setScopedValueCache(Object[] cache);
566
567 /**
568 * Return the current thread's scoped value bindings.
569 */
570 Object scopedValueBindings();
571
572 /**
573 * Returns the native thread ID for the given platform thread or 0 if not set.
574 */
575 long nativeThreadID(Thread thread);
576
577 /**
578 * Sets the native thread ID for the current platform thread.
579 */
580 void setThreadNativeID(long id);
581
582 /**
583 * Returns the innermost mounted continuation
584 */
585 Continuation getContinuation(Thread thread);
586
587 /**
588 * Sets the innermost mounted continuation
589 */
590 void setContinuation(Thread thread, Continuation continuation);
591
592 /**
593 * The ContinuationScope of virtual thread continuations
594 */
595 ContinuationScope virtualThreadContinuationScope();
596
597 /**
598 * Parks the current virtual thread.
599 * @throws WrongThreadException if the current thread is not a virtual thread
600 */
601 void parkVirtualThread();
602
603 /**
604 * Parks the current virtual thread for up to the given waiting time.
605 * @param nanos the maximum number of nanoseconds to wait
606 * @throws WrongThreadException if the current thread is not a virtual thread
607 */
608 void parkVirtualThread(long nanos);
609
610 /**
611 * Re-enables a virtual thread for scheduling. If the thread was parked then
612 * it will be unblocked, otherwise its next attempt to park will not block
613 * @param thread the virtual thread to unpark
614 * @throws IllegalArgumentException if the thread is not a virtual thread
615 * @throws RejectedExecutionException if the scheduler cannot accept a task
616 */
617 void unparkVirtualThread(Thread thread);
618
619 /**
620 * Returns the default virtual thread scheduler.
621 */
622 Thread.VirtualThreadScheduler defaultVirtualThreadScheduler();
623
624 /**
625 * Returns true if using a custom default virtual thread scheduler.
626 */
627 boolean isCustomDefaultVirtualThreadScheduler();
628
629 /**
630 * Returns the scheduler for the given virtual thread.
631 */
632 Thread.VirtualThreadScheduler virtualThreadScheduler(Thread thread);
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);
650
651 /**
652 * Are the string bytes compatible with the given charset?
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