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30 lines
1.6 KiB
C
30 lines
1.6 KiB
C
#pragma once
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#define CHECK_TYPE(TYPE, VAL) ({ \
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typedef void (*_check_type_dummy_fn_t)(TYPE); \
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_check_type_dummy_fn_t _check_type_dummy_fn = (_check_type_dummy_fn_t)NULL; \
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if (0) \
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_check_type_dummy_fn(VAL); \
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1; \
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})
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#define DEF_SCOPED_TYPE(NAME, TYPE, UNOCCUPIED, CLEANUP_FN) \
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static inline TYPE _scoped_##NAME##_unoccupied(void) { \
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return (UNOCCUPIED); \
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} \
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static inline void _scoped_##NAME##_cleanup(TYPE *_val) { \
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CLEANUP_FN(*_val); \
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*_val = (UNOCCUPIED); \
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} \
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static inline void _scoped_##NAME##_cleanup_raw(void *_val) { \
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_scoped_##NAME##_cleanup((TYPE *)_val); \
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} \
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static inline TYPE _scoped_##NAME##_release(TYPE *_val) { \
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TYPE _released = *_val; \
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*_val = (UNOCCUPIED); \
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return _released; \
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}
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#define SCOPED(NAME, TYPE, VAL) \
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TYPE VAL __attribute__((cleanup(_scoped_##NAME##_cleanup_raw))) = _scoped_##NAME##_unoccupied()
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