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-rw-r--r--lib/asio/detail/win_thread.hpp147
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+//
+// detail/win_thread.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 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 ASIO_DETAIL_WIN_THREAD_HPP
+#define ASIO_DETAIL_WIN_THREAD_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_WINDOWS) \
+ && !defined(ASIO_WINDOWS_APP) \
+ && !defined(UNDER_CE)
+
+#include <cstddef>
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+ASIO_DECL unsigned int __stdcall win_thread_function(void* arg);
+
+#if defined(WINVER) && (WINVER < 0x0500)
+ASIO_DECL void __stdcall apc_function(ULONG data);
+#else
+ASIO_DECL void __stdcall apc_function(ULONG_PTR data);
+#endif
+
+template <typename T>
+class win_thread_base
+{
+public:
+ static bool terminate_threads()
+ {
+ return ::InterlockedExchangeAdd(&terminate_threads_, 0) != 0;
+ }
+
+ static void set_terminate_threads(bool b)
+ {
+ ::InterlockedExchange(&terminate_threads_, b ? 1 : 0);
+ }
+
+private:
+ static long terminate_threads_;
+};
+
+template <typename T>
+long win_thread_base<T>::terminate_threads_ = 0;
+
+class win_thread
+ : private noncopyable,
+ public win_thread_base<win_thread>
+{
+public:
+ // Constructor.
+ template <typename Function>
+ win_thread(Function f, unsigned int stack_size = 0)
+ : thread_(0),
+ exit_event_(0)
+ {
+ start_thread(new func<Function>(f), stack_size);
+ }
+
+ // Destructor.
+ ASIO_DECL ~win_thread();
+
+ // Wait for the thread to exit.
+ ASIO_DECL void join();
+
+ // Get number of CPUs.
+ ASIO_DECL static std::size_t hardware_concurrency();
+
+private:
+ friend ASIO_DECL unsigned int __stdcall win_thread_function(void* arg);
+
+#if defined(WINVER) && (WINVER < 0x0500)
+ friend ASIO_DECL void __stdcall apc_function(ULONG);
+#else
+ friend ASIO_DECL void __stdcall apc_function(ULONG_PTR);
+#endif
+
+ class func_base
+ {
+ public:
+ virtual ~func_base() {}
+ virtual void run() = 0;
+ ::HANDLE entry_event_;
+ ::HANDLE exit_event_;
+ };
+
+ struct auto_func_base_ptr
+ {
+ func_base* ptr;
+ ~auto_func_base_ptr() { delete ptr; }
+ };
+
+ template <typename Function>
+ class func
+ : public func_base
+ {
+ public:
+ func(Function f)
+ : f_(f)
+ {
+ }
+
+ virtual void run()
+ {
+ f_();
+ }
+
+ private:
+ Function f_;
+ };
+
+ ASIO_DECL void start_thread(func_base* arg, unsigned int stack_size);
+
+ ::HANDLE thread_;
+ ::HANDLE exit_event_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#if defined(ASIO_HEADER_ONLY)
+# include "asio/detail/impl/win_thread.ipp"
+#endif // defined(ASIO_HEADER_ONLY)
+
+#endif // defined(ASIO_WINDOWS)
+ // && !defined(ASIO_WINDOWS_APP)
+ // && !defined(UNDER_CE)
+
+#endif // ASIO_DETAIL_WIN_THREAD_HPP