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63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* This file is part of open_agb_firm
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* Copyright (C) 2024 derrek, profi200
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include "internal/slabheap.h"
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#include "memory.h"
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void slabInit(SlabHeap *slab, size_t objSize, size_t num)
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{
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if(objSize < sizeof(SlabHeap) || !num) return;
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listInit(slab);
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u8 *pool = malloc(objSize * num);
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if(!pool) return;
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do
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{
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listPush(slab, (SlabHeap*)pool);
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pool += objSize;
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} while(--num);
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}
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void* slabAlloc(SlabHeap *slab)
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{
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if(!slab || listEmpty(slab)) return NULL;
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return listPop(slab);
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}
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void* slabCalloc(SlabHeap *slab, size_t clrSize)
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{
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void *const ptr = slabAlloc(slab);
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if(ptr) clear32(ptr, 0, clrSize);
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return ptr;
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}
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void slabFree(SlabHeap *slab, void *ptr)
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{
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if(!slab || !ptr) return;
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// Keep gaps filled by allocating the same mem
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// again next time an object is allocated.
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listPushTail(slab, (SlabHeap*)ptr);
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}
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