Class ManagedSignals

java.lang.Object

thc.runtime.ManagedSignals

public final class ManagedSignals
extends Object

One explicit CLI context owns supported GHC handlers. Native events contain real siginfo bytes; GHC chooses the current Haskell handler. The native slot is never reused in this JVM, preventing late old handlers targeting a new context.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ManagedSignals.Cleanup

Constructor Summary

Constructors

Constructor	Description
ManagedSignals(Language.State owner, Language language)
ManagedSignals(Language.State owner, Language language, boolean reducedVmSignals)
ManagedSignals(Language.State owner, Language language, boolean reducedVmSignals, BooleanSupplier userSignalAvailable)
ManagedSignals(Language.State owner, Language language, boolean reducedVmSignals, BooleanSupplier userSignalAvailable, Supplier<ProcessSignalTransport> factory)

Method Summary

Modifier and Type	Method	Description
void	authorizeLauncher()
void	bind(ExecutableProgram program)
void	close()	Reader owns destruction after its safepoint interrupter is unregistered.
static Throwable	finishSignalConsumer(Throwable initial, ManagedSignals.Cleanup restore, ManagedSignals.Cleanup unregister)	Preserve hard Truffle control flow even if restoration or bookkeeping fails.
static boolean	hasReducedVmSignals()	Check the effective host setting, never a user-supplied marker property.
long	install(long signal, long action, ManagedAddress mask)
static long	install(com.oracle.truffle.api.nodes.Node node, long signal, long action, ManagedAddress mask)
void	requestStop()	Exit notification only: no guest call, context lookup or safepoint join.

Methods inherited from class Object

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

Constructor Details

ManagedSignals

public ManagedSignals(Language.State owner,
 Language language)

ManagedSignals

public ManagedSignals(Language.State owner,
 Language language,
 boolean reducedVmSignals)

ManagedSignals

public ManagedSignals(Language.State owner,
 Language language,
 boolean reducedVmSignals,
 BooleanSupplier userSignalAvailable)

ManagedSignals

public ManagedSignals(Language.State owner,
 Language language,
 boolean reducedVmSignals,
 BooleanSupplier userSignalAvailable,
 Supplier<ProcessSignalTransport> factory)

Method Details

authorizeLauncher

public void authorizeLauncher()

bind

public void bind(ExecutableProgram program)

install

public long install(long signal,
 long action,
 ManagedAddress mask)

requestStop

public void requestStop()

Exit notification only: no guest call, context lookup or safepoint join.

close

public void close()

Reader owns destruction after its safepoint interrupter is unregistered.

hasReducedVmSignals

public static boolean hasReducedVmSignals()

Check the effective host setting, never a user-supplied marker property.

install

public static long install(com.oracle.truffle.api.nodes.Node node,
 long signal,
 long action,
 ManagedAddress mask)

finishSignalConsumer

public static Throwable finishSignalConsumer(Throwable initial,
 ManagedSignals.Cleanup restore,
 ManagedSignals.Cleanup unregister)

Preserve hard Truffle control flow even if restoration or bookkeeping fails.