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- //
- // 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
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