memory_management.h

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#ifndef MEMORY_MANAGEMENT_H
#define MEMORY_MANAGEMENT_H
 
#include <stdlib.h>
 
#define STANDARD_MEMORY_POOL_SIZE (8 * 1024 * 1024)        // 8MB
#define MIN_MEMORY_POOL_SIZE (1024 * 1024)                 // 1MB
#define MIN_MEMORY_BLOCK_SIZE (sizeof(memory_block_t) + 16)// 16 bytes for min user data
 
typedef struct memory_block_t {
    size_t size;                // size of the block (without the header)
    int active;                 // 1 if the block is in use, 0 if it is free
    struct memory_block_t* next;// pointer to the next block
    //here lays the user data
} memory_block_t;
 
typedef struct {
    size_t pool_size;// size of the memory pool
    void* memory;
    memory_block_t* first;// pointer to the first block
} memory_pool_t;
 

memory_pool_t* init_memory_pool(size_t size);
void* memory_pool_alloc(memory_pool_t* pool, size_t size);
void memory_pool_free(memory_pool_t* pool, void* ptr);
void shutdown_memory_pool(memory_pool_t* pool);
 
#endif//MEMORY_MANAGEMENT_H