com.yahoo.memory

Interface MemoryRequestServer

All Known Implementing Classes:

DefaultMemoryRequestServer

public interface MemoryRequestServer

The MemoryRequestServer is a callback interface to provide a means for a direct (off-heap), dynamic WritableMemory object to request more memory from the owner of the WritableDirectHandle. Refer to DefaultMemoryRequestServer for how this can be used.

Author:

Lee Rhodes

Method Summary

Modifier and Type	Method and Description
WritableMemory	request(long capacityBytes) Request new WritableMemory with the given capacity.
void	requestClose(WritableMemory memToClose, WritableMemory newMemory) Request close the AutoCloseable resource.

Method Detail

request

WritableMemory request(long capacityBytes)

Request new WritableMemory with the given capacity.

Parameters:

capacityBytes - The capacity being requested.

Returns:

new WritableMemory with the given capacity.

requestClose

void requestClose(WritableMemory memToClose,
                  WritableMemory newMemory)

Request close the AutoCloseable resource. This may be ignored depending on the application implementation.

Parameters:

memToClose - the relevant WritbleMemory to be considered for closing.

newMemory - the newly allocated WritableMemory. This is returned from the client for the convenience of the resource owner. It is optional and may be null.