Nick Hill 1f93bd36b6 CompositeByteBuf optimizations and new addFlattenedComponents method (#8939) ... Motivation: The CompositeByteBuf discardReadBytes / discardReadComponents methods are currently quite inefficient, including when there are no read components to discard. We would like to call the latter more frequently in ByteToMessageDecoder#COMPOSITE_CUMULATOR. In the same context it would be beneficial to perform a "shallow copy" of a composite buffer (for example when it has a refcount > 1) to avoid having to allocate and copy the contained bytes just to obtain an "independent" cumulation. Modifications: - Optimize discardReadBytes() and discardReadComponents() implementations (start at first comp rather than performing a binary search for the readerIndex). - New addFlattenedComponents(boolean,ByteBuf) method which performs a shallow copy if the provided buffer is also composite and avoids adding any empty buffers, plus unit test. - Other minor optimizations to avoid unnecessary checks. Results: discardReadXX methods are faster, composite buffers can be easily appended without deepening the buffer "tree" or retaining unused components.		2019-04-08 20:55:19 +02:00
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src	CompositeByteBuf optimizations and new addFlattenedComponents method (#8939)	2019-04-08 20:55:19 +02:00
pom.xml	Update version number to start working on Netty 5	2018-11-20 15:49:57 +01:00