Overview
| Comment: | of_spinlock_(un)lock: Add memory barrier |
|---|---|
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| SHA3-256: |
8e7c6ddf8c87ab5194af730a405821eb |
| User & Date: | js on 2016-07-30 21:22:31 |
| Other Links: | manifest | tags |
Context
|
2016-07-30
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| 21:46 | of_memory_barrier(): Only use mfence on x86_64 check-in: 9feaa90358 user: js tags: trunk | |
| 21:22 | of_spinlock_(un)lock: Add memory barrier check-in: 8e7c6ddf8c user: js tags: trunk | |
| 21:18 | atomic.h: Improve memory barrier check-in: 96a128f954 user: js tags: trunk | |
Changes
Modified src/threading.h from [f81dcfe3c4] to [8449195015].
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#endif
}
static OF_INLINE bool
of_spinlock_trylock(of_spinlock_t *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
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#endif
}
static OF_INLINE bool
of_spinlock_trylock(of_spinlock_t *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
if (of_atomic_int_cmpswap(spinlock, 0, 1)) {
of_memory_enter_barrier();
return true;
}
return false;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
return !pthread_spin_trylock(spinlock);
#else
return of_mutex_trylock(spinlock);
#endif
}
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#endif
}
static OF_INLINE bool
of_spinlock_unlock(of_spinlock_t *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
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#endif
}
static OF_INLINE bool
of_spinlock_unlock(of_spinlock_t *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
bool ret = of_atomic_int_cmpswap(spinlock, 1, 0);
of_memory_leave_barrier();
return ret;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
return !pthread_spin_unlock(spinlock);
#else
return of_mutex_unlock(spinlock);
#endif
}
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