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25 lines
642 B
C
25 lines
642 B
C
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/* Avoiding the synchronizations are a good thing. */
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#define WANT_SPECIALCASE_RELAXED
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#define WANT_SPECIALCASE_ACQREL
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/* Glibc, at least, uses lwsync (aka acq_rel) in its pthread mutex
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implementation. If the user is asking for seq_cst (aka hwsync),
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this is insufficient. */
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static inline void __attribute__((always_inline, artificial))
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pre_seq_barrier(int model)
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{
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if (model == __ATOMIC_SEQ_CST)
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__atomic_thread_fence (__ATOMIC_SEQ_CST);
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}
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static inline void __attribute__((always_inline, artificial))
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post_seq_barrier(int model)
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{
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pre_seq_barrier(model);
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}
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#define pre_post_seq_barrier 1
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#include_next <host-config.h>
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