Method front

Source/ThirdParty/tracy/client/tracy_SPSCQueue.h:82–91

  }

  T *front() noexcept {
    auto const readIdx = readIdx_.load(std::memory_order_relaxed);
    if (readIdx == writeIdxCache_) {
      writeIdxCache_ = writeIdx_.load(std::memory_order_acquire);
      if (writeIdxCache_ == readIdx) {
        return nullptr;
      }
    }
    return &slots_[readIdx + kPadding];
  }

  void pop() noexcept {
    static_assert(std::is_nothrow_destructible<T>::value,