/usr/include/asio/detail/winapi_thread.hpp is in libasio-dev 1:1.10.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// detail/winapi_thread.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2016 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_WINAPI_THREAD_HPP
#define ASIO_DETAIL_WINAPI_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)
#if defined(ASIO_WINDOWS_APP) || defined(UNDER_CE)
#include <memory>
#include "asio/detail/noncopyable.hpp"
#include "asio/detail/socket_types.hpp"
#include "asio/detail/throw_error.hpp"
#include "asio/error.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace detail {
DWORD WINAPI winapi_thread_function(LPVOID arg);
class winapi_thread
: private noncopyable
{
public:
// Constructor.
template <typename Function>
winapi_thread(Function f, unsigned int = 0)
{
std::auto_ptr<func_base> arg(new func<Function>(f));
DWORD thread_id = 0;
thread_ = ::CreateThread(0, 0, winapi_thread_function,
arg.get(), 0, &thread_id);
if (!thread_)
{
DWORD last_error = ::GetLastError();
asio::error_code ec(last_error,
asio::error::get_system_category());
asio::detail::throw_error(ec, "thread");
}
arg.release();
}
// Destructor.
~winapi_thread()
{
::CloseHandle(thread_);
}
// Wait for the thread to exit.
void join()
{
#if defined(ASIO_WINDOWS_APP)
::WaitForSingleObjectEx(thread_, INFINITE, false);
#else // defined(ASIO_WINDOWS_APP)
::WaitForSingleObject(thread_, INFINITE);
#endif // defined(ASIO_WINDOWS_APP)
}
private:
friend DWORD WINAPI winapi_thread_function(LPVOID arg);
class func_base
{
public:
virtual ~func_base() {}
virtual void run() = 0;
};
template <typename Function>
class func
: public func_base
{
public:
func(Function f)
: f_(f)
{
}
virtual void run()
{
f_();
}
private:
Function f_;
};
::HANDLE thread_;
};
inline DWORD WINAPI winapi_thread_function(LPVOID arg)
{
std::auto_ptr<winapi_thread::func_base> func(
static_cast<winapi_thread::func_base*>(arg));
func->run();
return 0;
}
} // namespace detail
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // defined(ASIO_WINDOWS_APP) || defined(UNDER_CE)
#endif // defined(ASIO_WINDOWS)
#endif // ASIO_DETAIL_WINAPI_THREAD_HPP
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