com.oracle.svm.core.locks

Class VMLockSupport.DumpVMMutexes

java.lang.Object

com.oracle.svm.core.SubstrateDiagnostics.DiagnosticThunk

com.oracle.svm.core.locks.VMLockSupport.DumpVMMutexes

Enclosing class:

VMLockSupport

public static class VMLockSupport.DumpVMMutexes
extends SubstrateDiagnostics.DiagnosticThunk

Constructor Summary

Constructors

Constructor and Description
DumpVMMutexes()

Method Summary

Modifier and Type	Method and Description
int	maxInvocationCount()
void	printDiagnostics(Log log, SubstrateDiagnostics.ErrorContext context, int maxDiagnosticLevel, int invocationCount) Prints diagnostic information.

Methods inherited from class java.lang.Object

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

Constructor Detail

DumpVMMutexes

public DumpVMMutexes()

Method Detail

maxInvocationCount

public int maxInvocationCount()

Specified by:

maxInvocationCount in class SubstrateDiagnostics.DiagnosticThunk

printDiagnostics

public void printDiagnostics(Log log,
                             SubstrateDiagnostics.ErrorContext context,
                             int maxDiagnosticLevel,
                             int invocationCount)

Description copied from class: SubstrateDiagnostics.DiagnosticThunk

Prints diagnostic information. This method may be invoked by multiple threads concurrently. If an error (e.g., exception or segfault) occurs while executing this method, then the same thread may execute this method multiple times sequentially. The parameter invocationCount is incremented for each sequential invocation. A typical implementation of SubstrateDiagnostics.DiagnosticThunk.printDiagnostics(com.oracle.svm.core.log.Log, com.oracle.svm.core.SubstrateDiagnostics.ErrorContext, int, int) will reduce the amount of diagnostic output when the invocationCount increases. This also reduces the risk of errors and makes it more likely that the method finishes executing successfully.

Specified by:

printDiagnostics in class SubstrateDiagnostics.DiagnosticThunk

Parameters:

log - the output to which the diagnostics should be printed.

context - contextual data for the error, e.g., register information.

maxDiagnosticLevel - specifies which kind of operations the diagnostic thunk may perform, see SubstrateDiagnostics.DiagnosticLevel.

invocationCount - this value is >= 1 and <= SubstrateDiagnostics.DiagnosticThunk.maxInvocationCount()).