c++ - Boost.Signals 弃用

Question

Boost.Signals is no longer being actively maintained, so it has been deprecated. Do not use Boost.Signals for new development (use Boost.Signals2 instead). If you have existing Boost.Signals-based code, it will continue to work, but consider moving to Boost.Signals2.

http://www.boost.org/users/history/version_1_54_0.html

因此，信号已被弃用。我对此感到困惑。据我所知，Signals2 是 Signals 的多线程版本。但是如果我不需要信号的多线程使用呢？我会得到一些开销吗？我可以使用 boost::signals2::trackable 吗？在单线程应用程序中使用 Signals2 会有什么缺点吗？

Answer 1

As far as I know, Signals2 is multi-threaded version of Signals. But what if I don't need multi-threading usage of Signals? Will I get some overhead?

在单线程环境中使用dummy_mutex，如described here .

Can I use boost::signals2::trackable?

是的，您可以使用它，但请记住它不会是 thread-safe approach .因此，如果您最终决定将模块调整为多线程环境，则必须重新设计插槽。