vl_arena.h

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#ifndef VL_ARENA_H
#define VL_ARENA_H
 
#include "vl_set.h"
 
typedef vl_uintptr_t vl_arena_ptr;
 
#ifdef VL_ARENA_NULL
#undef VL_ARENA_NULL
#endif
 
#define VL_ARENA_NULL 0
 
typedef struct vl_arena_node
{
    vl_arena_ptr offset;
    vl_memsize_t size;
} vl_arena_node;
 
typedef struct
{
    vl_memory* data; // Block of memory.
    vl_set freeSet; // set is ordered according to the offset of each free node.
} vl_arena;
 
VL_API void vlArenaInit(vl_arena* arena, vl_memsize_t initialSize);
 
VL_API void vlArenaFree(vl_arena* arena);
 
VL_API vl_arena* vlArenaNew(vl_memsize_t initialSize);
 
VL_API void vlArenaDelete(vl_arena* arena);
 
VL_API void vlArenaClear(vl_arena* arena);
 
VL_API vl_arena* vlArenaClone(const vl_arena* src, vl_arena* dest);
 
VL_API void vlArenaReserve(vl_arena* arena, vl_memsize_t numBytes);
 
VL_API vl_arena_ptr vlArenaMemAlloc(vl_arena* arena, vl_memsize_t size);
 
VL_API vl_arena_ptr vlArenaMemRealloc(vl_arena* arena, vl_arena_ptr ptr, vl_memsize_t size);
 
VL_API void vlArenaMemFree(vl_arena* arena, vl_arena_ptr ptr);
 
VL_API vl_arena_ptr vlArenaMemPrepend(vl_arena* arena, vl_arena_ptr dst, const void* src, vl_memsize_t length);
 
VL_API vl_arena_ptr vlArenaMemAppend(vl_arena* arena, vl_arena_ptr dst, const void* src, vl_memsize_t length);
 
VL_API vl_transient* vlArenaMemSample(vl_arena* arena, vl_arena_ptr ptr);
 
VL_API vl_memsize_t vlArenaMemSize(vl_arena* arena, vl_arena_ptr ptr);
 
VL_API vl_memsize_t vlArenaTotalCapacity(vl_arena* arena);
 
VL_API vl_memsize_t vlArenaTotalFree(vl_arena* arena);
 
#endif // VL_ARENA_H