Pool memory allocator is essential tool for video games and other programs where it is neccessary to allocate and free a lot of objects that do not have very big size. Memory allocator reserves a block of memory at construction. When there will be no available memory then it will allocate in grow coefficient times more memory than in previous time and so on.
- Extremely fast when allocating and freeing a lot of objects
- Prevents memory fragmentation
- Easily extensible and flexible
- Allocation size can grow just like std::vector do
- Single-header library
- Very lightweight and small (only 130 lines of code)
- Use of C++ 11 standard
The best way to use it all is to reserve much memory at construction and then manage it as needed. Grow coefficient should be in range [1.0; 2.0]
#define POOL_ALLOCATOR_IMPL /* Include definitions also */
#include <PoolAllocator.hpp>
struct Object
{
double number;
char name[256];
};
int main()
{
PoolAllocator allocator(sizeof(Object), 1000, 1.5f);
/* Constructor parameters:
- Size of object
- Number of objects to allocate at construction (1 by default)
- Grow coefficient (1.0f by default) */
Object* pointer = (Object*)allocator.allocate();
/* Returns pointer to allocated object.
* You can do it as much as you want. */
allocator.deallocate(pointer);
/* Takes pointer to allocated object */
allocator.clear();
/* Allocator will free all the allocated memory automatically.
* But it can be done manually using 'clear' method */
}Do everything you want. See LICENSE.txt