Class Overview
The concrete PerfDataBuffer implementation for the local:
protocol for the HotSpot PerfData monitoring implementation.
This class is responsible for acquiring access to the shared memory
instrumentation buffer for the target HotSpot Java Virtual Machine.
Summary
Public Constructors |
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PerfDataBuffer(VmIdentifier vmid)
Create a PerfDataBuffer instance for accessing the specified
instrumentation buffer.
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[Expand]
Inherited Methods |
From class
sun.jvmstat.perfdata.monitor.AbstractPerfDataBuffer
void
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createPerfDataBuffer(ByteBuffer bb, int lvmid)
Create the perfdata instrumentation buffer for the given lvmid
using the given ByteBuffer object as the source of the instrumentation
data.
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Monitor
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findByName(String name)
Find a named Instrumentation object.
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List<Monitor>
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findByPattern(String patternString)
Find all Instrumentation objects with names matching the given pattern.
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ByteBuffer
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getByteBuffer()
Get the ByteBuffer containing the instrumentation data.
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byte[]
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getBytes()
Get a copy of the raw instrumentation data.
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int
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getCapacity()
Get the capacity of the instrumentation buffer.
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int
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getLocalVmId()
Get the Local Java Virtual Machine Identifier, or lvmid
for the target JVM associated with this instrumentation buffer.
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MonitorStatus
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getMonitorStatus()
Get a list of the inserted and removed monitors since last called.
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From class
java.lang.Object
Object
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clone()
Creates and returns a copy of this object.
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boolean
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equals(Object obj)
Indicates whether some other object is "equal to" this one.
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void
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finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
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final
Class<?>
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getClass()
Returns the runtime class of this Object .
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int
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hashCode()
Returns a hash code value for the object.
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final
void
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notify()
Wakes up a single thread that is waiting on this object's
monitor.
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final
void
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notifyAll()
Wakes up all threads that are waiting on this object's monitor.
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String
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toString()
Returns a string representation of the object.
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final
void
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wait()
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object.
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final
void
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wait(long timeout, int nanos)
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object, or
some other thread interrupts the current thread, or a certain
amount of real time has elapsed.
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final
void
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wait(long timeout)
Causes the current thread to wait until either another thread invokes the
notify() method or the
notifyAll() method for this object, or a
specified amount of time has elapsed.
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Public Constructors
public
PerfDataBuffer
(VmIdentifier vmid)
Create a PerfDataBuffer instance for accessing the specified
instrumentation buffer.
Parameters
vmid
| the local: URI specifying the target JVM. |