Netty 5.0.0.Alpha5 · io.netty5.buffer.pool

Interface Summary

Modifier and Type	Interface and Description
public interface	BufferAllocatorMetric
public interface	BufferAllocatorMetricProvider
public interface	PoolArenaMetric Expose metrics for an arena.
public interface	PoolChunkListMetric Metrics for a list of chunks.
public interface	PoolChunkMetric Metrics for a chunk.
public interface	PoolSubpageMetric Metrics for a sub-page.
public interface	SizeClassesMetric Expose metrics for an SizeClasses.
public interface	UntetheredMemory Memory that isn't attached to any particular buffer.

Modifier and Type	Class and Description
pack-priv class	PoolArena
pack-priv class	PoolChunk Description of algorithm for PageRun/PoolSubpage allocation from PoolChunk Notation: The following terms are important to understand the code > page - a page is the smallest unit of memory chunk that can be allocated > run - a run is a collection of pages > chunk - a chunk is a collection of runs > in this code chunkSize = maxPages * pageSize To begin we allocate a byte array of size = chunkSize Whenever a ByteBuf of given size needs to be created we search for the first position in the byte array that has enough empty space to accommodate the requested size and return a (long) handle that encodes this offset information, (this memory segment is then marked as reserved, so it is always used by exactly one ByteBuf and no more) For simplicity all sizes are normalized according to `PoolArena#size2SizeIdx(int)` method.
pack-priv class	PoolChunkList
public class	PooledBufferAllocator
pack-priv class	PooledBufferAllocatorMetric Exposed metric for `PooledBufferAllocator`.
pack-priv class	PooledDrop
pack-priv class	PoolSubpage
pack-priv class	PoolThreadCache Acts a Thread cache for allocations.
pack-priv abstract class	SizeClasses SizeClasses requires `pageShifts` to be defined prior to inclusion, and it in turn defines: LOG2_SIZE_CLASS_GROUP: Log of size class count for each size doubling.
pack-priv class	UnpooledUntetheredMemory