59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/* date = June 19th 2023 10:07 pm */
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#ifndef CORE_MEMORY_H
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#define CORE_MEMORY_H
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////////////////////////////////
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//- sixten: Common Memory Functions
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static void Copy(void *Dest, void *Source, umm Count);
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static void CopyReverse(void *Dest, void *Source, umm Count);
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static void Fill(void *Dest, u8 Value, umm Count);
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#define Move(Dest, Source, Count) memmove(Dest, Source, Count)
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////////////////////////////////
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//- sixten: Memory Arena Types
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struct memory_arena
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{
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u64 Position;
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u64 CommitPosition;
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u64 Size;
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u64 Align;
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u64 Unused[4];
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};
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struct temporary_memory
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{
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memory_arena *Arena;
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u64 Position;
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};
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////////////////////////////////
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//~ sixten: Memory Arena Settings
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#define MEMORY_ARENA_COMMIT_SIZE Kilobytes(4)
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#define MEMORY_ARENA_DECOMMIT_THRESHOLD Megabytes(64)
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////////////////////////////////
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//- sixten: Memory Arena Functions
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static memory_arena *ArenaAllocate(u64 Size);
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static void ArenaRelease(memory_arena *Arena);
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static void *ArenaPushNoClear(memory_arena *Arena, u64 Size);
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static void *ArenaPush(memory_arena *Arena, u64 Size);
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static void ArenaPopTo(memory_arena *Arena, u64 Position);
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static void ArenaClear(memory_arena *Arena);
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static void ArenaSetAlign(memory_arena *Arena, u64 Align);
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#define PushArray(Arena, type, Count) (type *)ArenaPush((Arena), sizeof(type)*(Count))
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#define PushArrayNoClear(Arena, type, Count) (type *)ArenaPushNoClear((Arena), sizeof(type)*(Count))
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#define PushStruct(Arena, type) (type *)ArenaPush((Arena), sizeof(type))
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#define PushStructNoClear(Arena, type) (type *)ArenaPushNoClear((Arena), sizeof(type))
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////////////////////////////////
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//- sixten: Temporary Memory Functions
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static temporary_memory BeginTemporaryMemory(memory_arena *Arena);
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static void EndTemporaryMemory(temporary_memory Temp);
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#endif //CORE_MEMORY_H
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