本文整理汇总了Java中sun.jvm.hotspot.runtime.ObjectMonitor类的典型用法代码示例。如果您正苦于以下问题:Java ObjectMonitor类的具体用法?Java ObjectMonitor怎么用?Java ObjectMonitor使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ObjectMonitor类属于sun.jvm.hotspot.runtime包,在下文中一共展示了ObjectMonitor类的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Java代码示例。
示例1: getPendingThreads
import sun.jvm.hotspot.runtime.ObjectMonitor; //导入依赖的package包/类
private List getPendingThreads(ObjectMonitor mon) {
return vm.saVM().getThreads().getPendingThreads(mon);
}
开发者ID:arodchen,项目名称:MaxSim,代码行数:4,代码来源:ObjectReferenceImpl.java
示例2: getWaitingThreads
import sun.jvm.hotspot.runtime.ObjectMonitor; //导入依赖的package包/类
private List getWaitingThreads(ObjectMonitor mon) {
return vm.saVM().getThreads().getWaitingThreads(mon);
}
开发者ID:arodchen,项目名称:MaxSim,代码行数:4,代码来源:ObjectReferenceImpl.java
示例3: computeMonitorInfo
import sun.jvm.hotspot.runtime.ObjectMonitor; //导入依赖的package包/类
private void computeMonitorInfo() {
monitorInfoCached = true;
Mark mark = saObject.getMark();
ObjectMonitor mon = null;
Address owner = null;
// check for heavyweight monitor
if (! mark.hasMonitor()) {
// check for lightweight monitor
if (mark.hasLocker()) {
owner = mark.locker().getAddress(); // save the address of the Lock word
}
// implied else: no owner
} else {
// this object has a heavyweight monitor
mon = mark.monitor();
// The owner field of a heavyweight monitor may be NULL for no
// owner, a JavaThread * or it may still be the address of the
// Lock word in a JavaThread's stack. A monitor can be inflated
// by a non-owning JavaThread, but only the owning JavaThread
// can change the owner field from the Lock word to the
// JavaThread * and it may not have done that yet.
owner = mon.owner();
}
// find the owning thread
if (owner != null) {
owningThread = vm.threadMirror(owningThreadFromMonitor(owner));
}
// compute entryCount
if (owningThread != null) {
if (owningThread.getJavaThread().getAddress().equals(owner)) {
// the owner field is the JavaThread *
if (Assert.ASSERTS_ENABLED) {
Assert.that(false, "must have heavyweight monitor with JavaThread * owner");
}
entryCount = (int) mark.monitor().recursions() + 1;
} else {
// The owner field is the Lock word on the JavaThread's stack
// so the recursions field is not valid. We have to count the
// number of recursive monitor entries the hard way.
entryCount = countLockedObjects(owningThread.getJavaThread(), saObject);
}
}
// find the contenders & waiters
waitingThreads = new ArrayList();
if (mon != null) {
// this object has a heavyweight monitor. threads could
// be contenders or waiters
// add all contenders
List pendingThreads = getPendingThreads(mon);
// convert the JavaThreads to ThreadReferenceImpls
for (Iterator itrPend = pendingThreads.iterator(); itrPend.hasNext();) {
waitingThreads.add(vm.threadMirror((JavaThread) itrPend.next()));
}
// add all waiters (threads in Object.wait())
// note that we don't do this JVMTI way. To do it JVMTI way,
// we would need to access ObjectWaiter list maintained in
// ObjectMonitor::_queue. But we don't have this struct exposed
// in vmStructs. We do waiters list in a way similar to getting
// pending threads list
List objWaitingThreads = getWaitingThreads(mon);
// convert the JavaThreads to ThreadReferenceImpls
for (Iterator itrWait = objWaitingThreads.iterator(); itrWait.hasNext();) {
waitingThreads.add(vm.threadMirror((JavaThread) itrWait.next()));
}
}
}
开发者ID:arodchen,项目名称:MaxSim,代码行数:72,代码来源:ObjectReferenceImpl.java
注:本文中的sun.jvm.hotspot.runtime.ObjectMonitor类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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