A (virtual) memory allocator library

A library that provides cross-platform usage of a virtual memory allocator.

Note: See ccode on how to generate the buildfiles.

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Superalloc

Currently this allocator, called 'superalloc', is implemented in C++ and is around 1200 lines of code for the core. This allocator is very configurable and all book-keeping data is outside of the managed memory making it very suitable for different kind of memory (read-only, GPU etc..).

It only uses the following data structures:

• plain old c style arrays
• binmap; 4 layer bit array (maximum of 2^20 items)
• doubly linked list

class valloc_t
{
public:
      void* allocate(u32 size, u32 align);
      u32   deallocate(void*);
      
      // You can tag an allocation, very useful for attaching debugging info to an allocation or
      // using it as a CPU/GPU handle.
      void  set_tag(void*, u32);
      u32   get_tag(void*);
      u32   get_size(void*);
};

Note: Benchmarks are still to be done.
Note: Unittest contains a test called stress test that executes 500.000 operations (allocation / deallocation)

WIP

Some things missing:

• not multi-thread safe (yet)
• cached chunks are not limited so nothing is released back in terms of unused physical pages.