Function rt_hw_spin_lock

libcpu/aarch64/common/cpu.c:127–143

}

void rt_hw_spin_lock(rt_hw_spinlock_t *_lock)
{
    union _spinlock *lock = (void *)_lock;
    rt_uint16_t ticket =
        atomic_fetch_add_explicit(&lock->ticket.next, 1, memory_order_relaxed);

    if (atomic_load_explicit(&lock->ticket.owner, memory_order_acquire) !=
        ticket)
    {
        _send_event_local();
        do
        {
            _wait_for_event();
        }
        while (_load_acq_exclusive(&lock->ticket.owner) != ticket);
    }
}

void rt_hw_spin_unlock(rt_hw_spinlock_t *_lock)
{