net.openhft.chronicle.hash.impl.stage.entry

Interface Alloc

All Known Implementing Classes:

IterationAlloc, QueryAlloc

public interface Alloc

Method Summary

Modifier and Type	Method and Description
long	alloc(int chunks, long prevPos, int prevChunks) Allocates a block of specified number of chunks in a segment tier, optionally clears the previous allocation.

Method Detail

alloc

long alloc(int chunks,
           long prevPos,
           int prevChunks)

Allocates a block of specified number of chunks in a segment tier, optionally clears the previous allocation.

Parameters:

chunks - chunks to allocate

prevPos - the previous position to clear, -1 if not needed

prevChunks - the size of the previous allocation to clear, 0 if not needed

Returns:

the new allocation position

Throws:

RuntimeException - if fails to allocate a block