Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

this_coro::cancellation_state

Awaitable object that returns the cancellation state of the current coroutine.

constexpr cancellation_state_t cancellation_state;

Example

boost::asio::awaitable<void> my_coroutine()
{
  boost::asio::cancellation_state cs
    = co_await boost::asio::this_coro::cancellation_state;

  // ...

  if (cs.cancelled() != boost::asio::cancellation_type::none)
    // ...
}

Requirements

Header: boost/asio/this_coro.hpp

Convenience header: boost/asio.hpp