magicaltux / fixedalloc

Fixed size memory allocator optimized for performance over memory usage

FixedAlloc

Fixed memory allocator made for fast fixed-size memory allocation requiring GCC as a compiler (using specific GCC extensions). Note that this will most likely not work with any other compiler.

Memory allocation tracking

There are two options for tracking available memory blocks.

Default mode

This mode will create a data buffer to keep track of available blocks by storing the block number of the next available blocks.

Cell mode

Common cell based memory allocator. Each memory block is prefixed by an information of the next available memory block. New blocks are prefixed, and final block has a next block of -1.

Methods

malloc_X

void *malloc_X()

This method allocates memory (remember, the size is fixed, so there is no need to specify it) and returns a pointer to it.

free_X

void free_X(void*)

Free allocated memory.

free_all_X

void free_all_X()

Free all allocated of type X so far. This operation will not need to go through all the allocated blocks (it will just free everything).