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.TrackedBuffers 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.TrackedBuffer

Nested classes/interfaces inherited from class ArrayByteBufferPool

ArrayByteBufferPool.Quadratic, ArrayByteBufferPool.Tracking, ArrayByteBufferPool.WithBucketCapacities

Nested classes/interfaces inherited from interface ByteBufferPool

ByteBufferPool.Accumulator, ByteBufferPool.NonPooling, ByteBufferPool.Sized, ByteBufferPool.Wrapper

Nested classes/interfaces inherited from interface Dumpable

Dumpable.DumpableContainer, Dumpable.DumpAppendable

Field Summary

Fields inherited from interface ByteBufferPool

NON_POOLING, SIZED_NON_POOLING

Fields inherited from interface Dumpable

LEGEND

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class ArrayByteBufferPool

clear, dump, getAvailableDirectByteBufferCount, getAvailableDirectMemory, getAvailableHeapByteBufferCount, getAvailableHeapMemory, getDirectBucketsStatistics, getDirectByteBufferCount, getDirectMemory, getHeapBucketsStatistics, getHeapByteBufferCount, getHeapMemory, getMaxCapacity, getMinCapacity, getNoBucketDirectAcquires, getNoBucketHeapAcquires, getReserved, isStatisticsEnabled, poolFor, setStatisticsEnabled, toString

Methods inherited from class Object

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

Methods inherited from interface Dumpable

dump, dumpSelf

Constructor Details

Tracking

public Tracking()

Tracking

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

Tracking

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

Tracking

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

Tracking

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

Method Details

acquire

public RetainableByteBuffer.Mutable 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.TrackedBuffer> getLeaks()

dumpLeaks

public String dumpLeaks()