com.oracle.svm.core.windows

Class WindowsVMThreads

java.lang.Object

com.oracle.svm.core.thread.VMThreads

com.oracle.svm.core.windows.WindowsVMThreads

public final class WindowsVMThreads
extends VMThreads

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.svm.core.thread.VMThreads

VMThreads.ActionOnExitSafepointSupport, VMThreads.ActionOnTransitionToJavaSupport, VMThreads.OSThreadHandle, VMThreads.OSThreadId, VMThreads.SafepointBehavior, VMThreads.StatusSupport

Field Summary

Fields inherited from class com.oracle.svm.core.thread.VMThreads

IsolateTL, nextTL, OSThreadHandleTL, StackBase, StackEnd, THREAD_LIST_CONDITION, THREAD_MUTEX

Constructor Summary

Constructors

Constructor and Description
WindowsVMThreads()

Method Summary

Modifier and Type	Method and Description
void	failFatally(int code, org.graalvm.nativeimage.c.type.CCharPointer message) Report a fatal error to the user and exit.
VMThreads.OSThreadHandle	getCurrentOSThreadHandle() Returns a platform-specific handle to the current thread.
protected VMThreads.OSThreadId	getCurrentOSThreadId() Returns a unique identifier for the current thread.
protected boolean	initializeOnce() Make sure the runtime is initialized for threading.
protected void	joinNoTransition(VMThreads.OSThreadHandle osThreadHandle) Executes a non-multithreading-safe low-level (i.e., non-Java-level) join operation on the given native thread.
void	nativeSleep(int milliseconds) Puts this thread to sleep on the operating-system level and does not care about Java semantics.
boolean	supportsPatientSafepoints()
void	yield()

Methods inherited from class com.oracle.svm.core.thread.VMThreads

allocateIsolateThread, attachThread, cleanupExitedOsThreads, detachAllThreadsExceptCurrentWithoutCleanupForTearDown, detachThread, ensureInitialized, findIsolateThreadForCurrentOSThread, firstThread, firstThreadUnsafe, freeIsolateThread, guaranteeOwnsThreadMutex, isInitialized, isTearingDown, nextThread, ownsThreadMutex, printLocationInfo, singleton, tearDown, verifyIsCurrentThread, verifyThreadIsAttached

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WindowsVMThreads

public WindowsVMThreads()

Method Detail

getCurrentOSThreadHandle

public VMThreads.OSThreadHandle getCurrentOSThreadHandle()

Description copied from class: VMThreads

Returns a platform-specific handle to the current thread. This handle can for example be used for joining a thread. Depending on the specific platform, it can be necessary to explicitly free the handle when it is no longer used. To avoid leaking operating system resources, this method should therefore only be called in VMThreads.attachThread(IsolateThread), when VMThreads.OSThreadHandleTL is not set yet.

Specified by:

getCurrentOSThreadHandle in class VMThreads

getCurrentOSThreadId

protected VMThreads.OSThreadId getCurrentOSThreadId()

Description copied from class: VMThreads

Returns a unique identifier for the current thread.

Specified by:

getCurrentOSThreadId in class VMThreads

joinNoTransition

protected void joinNoTransition(VMThreads.OSThreadHandle osThreadHandle)

Description copied from class: VMThreads

Executes a non-multithreading-safe low-level (i.e., non-Java-level) join operation on the given native thread. If the thread hasn't yet exited on the operating system level, this method blocks until the thread exits on the operating system level. After successfully joining a thread, the operating system may free resources and recycle/reuse the given thread id for other newly started threads. As this method is marked as uninterruptible, it may only be used for joining threads that were already detached from SVM. Otherwise, this could result in deadlocks.

Specified by:

joinNoTransition in class VMThreads

nativeSleep

public void nativeSleep(int milliseconds)

Description copied from class: VMThreads

Puts this thread to sleep on the operating-system level and does not care about Java semantics. May only be used in very specific situations, e.g., when printing diagnostics.

Overrides:

nativeSleep in class VMThreads

yield

public void yield()

Overrides:

yield in class VMThreads

supportsPatientSafepoints

public boolean supportsPatientSafepoints()

Overrides:

supportsPatientSafepoints in class VMThreads

initializeOnce

protected boolean initializeOnce()

Make sure the runtime is initialized for threading.

Specified by:

initializeOnce in class VMThreads

failFatally

public void failFatally(int code,
                        org.graalvm.nativeimage.c.type.CCharPointer message)

Description copied from class: VMThreads

Report a fatal error to the user and exit. This method must not return.

Specified by:

failFatally in class VMThreads