mirror of https://github.com/bjornbytes/lovr.git
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
#include <stdint.h>
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#include <stddef.h>
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#pragma once
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#if defined(LOVR_ENABLE_THREAD) && defined(_WIN32)
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#include <intrin.h>
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typedef uint32_t Ref;
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static inline uint32_t ref_inc(Ref* ref) { return _InterlockedIncrement(ref); }
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static inline uint32_t ref_dec(Ref* ref) { return _InterlockedDecrement(ref); }
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#elif defined(LOVR_ENABLE_THREAD)
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#include <stdatomic.h>
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typedef _Atomic(uint32_t) Ref;
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static inline uint32_t ref_inc(Ref* ref) { return atomic_fetch_add(ref, 1) + 1; }
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static inline uint32_t ref_dec(Ref* ref) { return atomic_fetch_sub(ref, 1) - 1; }
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#else
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typedef uint32_t Ref;
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static inline uint32_t ref_inc(Ref* ref) { return ++*ref; }
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static inline uint32_t ref_dec(Ref* ref) { return --*ref; }
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#endif
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void* _lovrAlloc(size_t size);
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#define toRef(o) (Ref*) (o) - 1
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#define lovrAlloc(T) (T*) _lovrAlloc(sizeof(T))
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#define lovrRetain(o) if (o && !ref_inc(toRef(o))) { lovrThrow("Refcount overflow in %s:%d", __FILE__, __LINE__); }
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#define lovrRelease(T, o) if (o && !ref_dec(toRef(o))) lovr ## T ## Destroy(o), free(toRef(o));
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#define _lovrRelease(o, f) if (o && !ref_dec(toRef(o))) f(o), free(toRef(o));
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