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19 lines
725 B
C
19 lines
725 B
C
#pragma once
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// Copyright (c) 2019 Christoffer Lerno. All rights reserved.
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// Use of this source code is governed by the GNU LGPLv3.0 license
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// a copy of which can be found in the LICENSE file.
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#include "vmem.h"
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#define ARENA_DEF(name, type) \
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extern Vmem name##_arena; \
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typedef unsigned type##Id; \
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static inline type *name##_alloc(void) { return (type *)vmem_alloc(&name##_arena, sizeof(type)); } \
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static inline type *name##_calloc(void) { \
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type *ptr = name##_alloc(); \
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memset(ptr, 0, sizeof(type)); \
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return ptr; } \
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static inline type *name##ptr(type ## Id id) { return ((type *)name##_arena.ptr) + id; } \
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static inline type##Id name##id(type *ptr) { return (unsigned) { ptr - ((type *)name##_arena.ptr) }; }
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