com.oracle.svm.core.posix.pthread

Class PthreadVMLockSupport

java.lang.Object

com.oracle.svm.core.locks.VMLockSupport

com.oracle.svm.core.posix.pthread.PthreadVMLockSupport

public final class PthreadVMLockSupport
extends VMLockSupport

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.svm.core.locks.VMLockSupport

VMLockSupport.DumpVMMutexes

Field Summary

Fields

Modifier and Type	Field and Description
protected com.oracle.svm.core.posix.pthread.PthreadVMCondition[]	conditions All conditions, so that we can initialize them at run time when the VM starts.
protected com.oracle.svm.core.posix.pthread.PthreadVMMutex[]	mutexes All mutexes, so that we can initialize them at run time when the VM starts.
protected byte[]	pthreadStructs Raw memory for the pthread lock structures.

Constructor Summary

Constructors

Constructor and Description
PthreadVMLockSupport()

Method Summary

Modifier and Type	Method and Description
protected static void	checkResult(int result, String functionName)
com.oracle.svm.core.posix.pthread.PthreadVMCondition[]	getConditions() Returns an array that contains all VMCondition objects that are present in the image or null if that information is not available.
com.oracle.svm.core.posix.pthread.PthreadVMMutex[]	getMutexes() Returns an array that contains all VMMutex objects that are present in the image or null if that information is not available.
static boolean	initialize() Must be called once early during startup, before any mutex or condition is used.
static PthreadVMLockSupport	singleton()

Methods inherited from class java.lang.Object

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

Field Detail

mutexes

protected com.oracle.svm.core.posix.pthread.PthreadVMMutex[] mutexes

All mutexes, so that we can initialize them at run time when the VM starts.

conditions

protected com.oracle.svm.core.posix.pthread.PthreadVMCondition[] conditions

All conditions, so that we can initialize them at run time when the VM starts.

pthreadStructs

protected byte[] pthreadStructs

Raw memory for the pthread lock structures. Since we know that native image objects are never moved, we can safely hand out pointers into the middle of this array to C code. The offset into this array is stored in PthreadVMMutex.structOffset and PthreadVMCondition.structOffset.

Constructor Detail

PthreadVMLockSupport

public PthreadVMLockSupport()

Method Detail

singleton

public static PthreadVMLockSupport singleton()

initialize

public static boolean initialize()

Must be called once early during startup, before any mutex or condition is used.

checkResult

protected static void checkResult(int result,
                                  String functionName)

getMutexes

public com.oracle.svm.core.posix.pthread.PthreadVMMutex[] getMutexes()

Description copied from class: VMLockSupport

Returns an array that contains all VMMutex objects that are present in the image or null if that information is not available.

Specified by:

getMutexes in class VMLockSupport

getConditions

public com.oracle.svm.core.posix.pthread.PthreadVMCondition[] getConditions()

Description copied from class: VMLockSupport

Returns an array that contains all VMCondition objects that are present in the image or null if that information is not available.

Specified by:

getConditions in class VMLockSupport