86 lines
1.8 KiB
C++
86 lines
1.8 KiB
C++
//
|
|
// win_tss_ptr.hpp
|
|
// ~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2006 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_TSS_PTR_HPP
|
|
#define ASIO_DETAIL_WIN_TSS_PTR_HPP
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
# pragma once
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
#include <boost/config.hpp>
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
#if defined(BOOST_WINDOWS)
|
|
|
|
#include "asio/system_exception.hpp"
|
|
#include "asio/detail/noncopyable.hpp"
|
|
#include "asio/detail/socket_types.hpp"
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
#include <boost/throw_exception.hpp>
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
namespace asio {
|
|
namespace detail {
|
|
|
|
template <typename T>
|
|
class win_tss_ptr
|
|
: private noncopyable
|
|
{
|
|
public:
|
|
// Constructor.
|
|
win_tss_ptr()
|
|
{
|
|
tss_key_ = ::TlsAlloc();
|
|
if (tss_key_ == TLS_OUT_OF_INDEXES)
|
|
{
|
|
DWORD last_error = ::GetLastError();
|
|
system_exception e("tss", last_error);
|
|
boost::throw_exception(e);
|
|
}
|
|
}
|
|
|
|
// Destructor.
|
|
~win_tss_ptr()
|
|
{
|
|
::TlsFree(tss_key_);
|
|
}
|
|
|
|
// Get the value.
|
|
operator T*() const
|
|
{
|
|
return static_cast<T*>(::TlsGetValue(tss_key_));
|
|
}
|
|
|
|
// Set the value.
|
|
void operator=(T* value)
|
|
{
|
|
::TlsSetValue(tss_key_, value);
|
|
}
|
|
|
|
private:
|
|
// Thread-specific storage to allow unlocked access to determine whether a
|
|
// thread is a member of the pool.
|
|
DWORD tss_key_;
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace asio
|
|
|
|
#endif // defined(BOOST_WINDOWS)
|
|
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
#endif // ASIO_DETAIL_WIN_TSS_PTR_HPP
|