52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
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//
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// detail/thread_context.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_DETAIL_THREAD_CONTEXT_HPP
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#define ASIO_DETAIL_THREAD_CONTEXT_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <climits>
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#include <cstddef>
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#include "asio/detail/call_stack.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace detail {
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class thread_info_base;
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// Base class for things that manage threads (scheduler, win_iocp_io_context).
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class thread_context
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{
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public:
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// Obtain a pointer to the top of the thread call stack. Returns null when
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// not running inside a thread context.
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ASIO_DECL static thread_info_base* top_of_thread_call_stack();
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protected:
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// Per-thread call stack to track the state of each thread in the context.
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typedef call_stack<thread_context, thread_info_base> thread_call_stack;
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};
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} // namespace detail
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#if defined(ASIO_HEADER_ONLY)
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# include "asio/detail/impl/thread_context.ipp"
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#endif // defined(ASIO_HEADER_ONLY)
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#endif // ASIO_DETAIL_THREAD_CONTEXT_HPP
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