| // |
| // detail/thread_context.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| // |
| |
| #ifndef BOOST_ASIO_DETAIL_THREAD_CONTEXT_HPP |
| #define BOOST_ASIO_DETAIL_THREAD_CONTEXT_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include <climits> |
| #include <cstddef> |
| #include <boost/asio/detail/call_stack.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| namespace boost { |
| namespace asio { |
| namespace detail { |
| |
| class thread_info_base; |
| |
| // Base class for things that manage threads (scheduler, win_iocp_io_context). |
| class thread_context |
| { |
| public: |
| // Obtain a pointer to the top of the thread call stack. Returns null when |
| // not running inside a thread context. |
| BOOST_ASIO_DECL static thread_info_base* top_of_thread_call_stack(); |
| |
| protected: |
| // Per-thread call stack to track the state of each thread in the context. |
| typedef call_stack<thread_context, thread_info_base> thread_call_stack; |
| }; |
| |
| } // namespace detail |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #if defined(BOOST_ASIO_HEADER_ONLY) |
| # include <boost/asio/detail/impl/thread_context.ipp> |
| #endif // defined(BOOST_ASIO_HEADER_ONLY) |
| |
| #endif // BOOST_ASIO_DETAIL_THREAD_CONTEXT_HPP |