mirror of https://github.com/AxioDL/boo.git
18 lines
655 B
C
18 lines
655 B
C
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#ifndef LIBDRM_ATOMICS_H
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#define LIBDRM_ATOMICS_H
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typedef struct {
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int atomic;
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} atomic_t;
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# define atomic_read(x) ((x)->atomic)
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# define atomic_set(x, val) ((x)->atomic = (val))
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# define atomic_inc(x) ((void) __sync_fetch_and_add (&(x)->atomic, 1))
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# define atomic_inc_return(x) (__sync_add_and_fetch (&(x)->atomic, 1))
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# define atomic_dec_and_test(x) (__sync_add_and_fetch (&(x)->atomic, -1) == 0)
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# define atomic_add(x, v) ((void) __sync_add_and_fetch(&(x)->atomic, (v)))
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# define atomic_dec(x, v) ((void) __sync_sub_and_fetch(&(x)->atomic, (v)))
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# define atomic_cmpxchg(x, oldv, newv) __sync_val_compare_and_swap (&(x)->atomic, oldv, newv)
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#endif
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