empty()

template<typename T , typename StoragePolicy , typename ConcurrencyPolicy = SingleThreadedPolicy, typename AccessPattern = QueueAccess>

bool MayaFlux::Memory::RingBuffer< T, StoragePolicy, ConcurrencyPolicy, AccessPattern >::empty ( ) const

inlinenoexcept

Check if buffer is empty.

Returns

true if no elements present

Definition at line 1033 of file RingBuffer.hpp.

    {
        if constexpr (is_mpsc) {
            return m_state.read_index.load(std::memory_order_acquire)
                == m_state.claim_index.load(std::memory_order_acquire);
        } else if constexpr (is_lock_free) {
            return m_state.read_index.load(std::memory_order_acquire)
                == m_state.write_index.load(std::memory_order_acquire);
        } else {
            return m_state.read_index == m_state.write_index;
        }
    }

References MayaFlux::Memory::RingBuffer< T, StoragePolicy, ConcurrencyPolicy, AccessPattern >::is_lock_free, MayaFlux::Memory::RingBuffer< T, StoragePolicy, ConcurrencyPolicy, AccessPattern >::is_mpsc, and MayaFlux::Memory::RingBuffer< T, StoragePolicy, ConcurrencyPolicy, AccessPattern >::m_state.