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atomic.h: Add atomic_load_long()

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This commit is contained in:
Sebastian Huber 2019-08-27 09:50:05 +02:00
parent abbce3f757
commit 8bf5f93ac1
1 changed files with 21 additions and 0 deletions
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21
rtemsbsd/include/machine/atomic.h
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@ -1477,6 +1477,27 @@ atomic_readandclear_long(volatile long *p)
return (tmp); return (tmp);
} }
static inline long
atomic_load_long(volatile long *p)
{
long tmp;
#if defined(_RTEMS_BSD_MACHINE_ATOMIC_USE_ATOMIC)
std::atomic_long *q =
reinterpret_cast<std::atomic_long *>(const_cast<long *>(p));
tmp = q->load(std::memory_order_relaxed);
#elif defined(_RTEMS_BSD_MACHINE_ATOMIC_USE_STDATOMIC)
atomic_long *q = (atomic_long *)RTEMS_DEVOLATILE(long *, p);
tmp = atomic_load_explicit(q, memory_order_relaxed);
#else
tmp = *p;
#endif
return (tmp);
}
static inline long static inline long
atomic_load_acq_long(volatile long *p) atomic_load_acq_long(volatile long *p)
{ {