19 lines
424 B
C
19 lines
424 B
C
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#pragma once
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#include <common.h>
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typedef struct arena {
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void* ptr;
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usize available;
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usize capacity;
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} arena;
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// The capacity has to be page-aligned
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arena arena_init(usize capacity);
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// The available size will be rounded up to a page boundary
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// Will not grow beyond its capacity
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void arena_ensure(arena* arena, usize available);
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#define ARENA_ENSURE(T, arena, available) arena_ensure(arena, (available) * sizeof(T))
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