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Fast Special-purpose Memory Allocation for C++ - Pool(3C++)

The Pool Class

A Pool represents a set of memory blocks that are all the same size. That size must be specified as a byte count when the Pool is created. For example:

   Pool p (16);

creates a Pool called p, which represents a collection of 16-character memory blocks. Once a Pool has been created, it is impossible to change the size of the blocks that can be allocated from it.

To allocate a block from a Pool, use the alloc member function:

   void* mem = p.alloc();

makes mem point at a newly-allocated block.

The free member function releases a block:

   p.free(mem);

releases the block addressed by mem into the pool p . It is the programmer's responsibility to ensure that a block is released into the same pool that originated it.

When a Pool object is destroyed, all the memory in the Pool is freed.


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