Package org.eclipse.jetty.io

Class ArrayByteBufferPool.Tracking

java.lang.Object

org.eclipse.jetty.io.ArrayByteBufferPool

org.eclipse.jetty.io.ArrayByteBufferPool.Tracking

All Implemented Interfaces:

ByteBufferPool, Dumpable

Enclosing class:

ArrayByteBufferPool

public static class ArrayByteBufferPool.Tracking
extends ArrayByteBufferPool

A variant of ArrayByteBufferPool that tracks buffer acquires/releases, useful to identify buffer leaks.

Use getLeaks() when the system is idle to get the ArrayByteBufferPool.Tracking.Buffers that have been leaked, which contain the stack trace information of where the buffer was acquired.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	ArrayByteBufferPool.Tracking.Buffer

Nested classes/interfaces inherited from class org.eclipse.jetty.io.ArrayByteBufferPool

ArrayByteBufferPool.Quadratic, ArrayByteBufferPool.Tracking

Nested classes/interfaces inherited from interface org.eclipse.jetty.io.ByteBufferPool

ByteBufferPool.Accumulator, ByteBufferPool.NonPooling, ByteBufferPool.Wrapper

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.Dumpable

Dumpable.DumpableContainer

Field Summary

Fields inherited from interface org.eclipse.jetty.io.ByteBufferPool

NON_POOLING

Fields inherited from interface org.eclipse.jetty.util.component.Dumpable

KEY

Constructor Summary

Constructors

Constructor	Description
Tracking()
Tracking(int minCapacity, int maxCapacity, int maxBucketSize)
Tracking(int minCapacity, int maxCapacity, int maxBucketSize, long maxHeapMemory, long maxDirectMemory)

Method Summary

Modifier and Type	Method	Description
RetainableByteBuffer	acquire(int size, boolean direct)	Acquires a RetainableByteBuffer from this pool.
String	dumpLeaks()
Set<ArrayByteBufferPool.Tracking.Buffer>	getLeaks()

Methods inherited from class org.eclipse.jetty.io.ArrayByteBufferPool

clear, dump, getAvailableDirectByteBufferCount, getAvailableDirectMemory, getAvailableHeapByteBufferCount, getAvailableHeapMemory, getDirectByteBufferCount, getDirectMemory, getHeapByteBufferCount, getHeapMemory, getMaxCapacity, getMinCapacity, isStatisticsEnabled, poolFor, setStatisticsEnabled, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jetty.util.component.Dumpable

dump, dumpSelf

Constructor Details

Tracking

public Tracking()

Tracking

public Tracking(int minCapacity,
 int maxCapacity,
 int maxBucketSize)

Tracking

public Tracking(int minCapacity,
 int maxCapacity,
 int maxBucketSize,
 long maxHeapMemory,
 long maxDirectMemory)

Method Details

acquire

public RetainableByteBuffer acquire(int size,
 boolean direct)

Description copied from interface: ByteBufferPool

Acquires a RetainableByteBuffer from this pool.

Specified by:

acquire in interface ByteBufferPool

Overrides:

acquire in class ArrayByteBufferPool

Parameters:

size - The size of the buffer. The returned buffer will have at least this capacity.

direct - true if a direct memory buffer is needed, false otherwise.

Returns:

a RetainableByteBuffer with position and limit set to 0.

getLeaks

public Set<ArrayByteBufferPool.Tracking.Buffer> getLeaks()

dumpLeaks

public String dumpLeaks()