You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
1.3 KiB
68 lines
1.3 KiB
//
|
|
// detail/null_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_NULL_THREAD_HPP
|
|
#define ASIO_DETAIL_NULL_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_HAS_THREADS)
|
|
|
|
#include "asio/detail/noncopyable.hpp"
|
|
#include "asio/detail/throw_error.hpp"
|
|
#include "asio/error.hpp"
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
|
|
namespace asio {
|
|
namespace detail {
|
|
|
|
class null_thread
|
|
: private noncopyable
|
|
{
|
|
public:
|
|
// Constructor.
|
|
template <typename Function>
|
|
null_thread(Function, unsigned int = 0)
|
|
{
|
|
asio::detail::throw_error(
|
|
asio::error::operation_not_supported, "thread");
|
|
}
|
|
|
|
// Destructor.
|
|
~null_thread()
|
|
{
|
|
}
|
|
|
|
// Wait for the thread to exit.
|
|
void join()
|
|
{
|
|
}
|
|
|
|
// Get number of CPUs.
|
|
static std::size_t hardware_concurrency()
|
|
{
|
|
return 1;
|
|
}
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace asio
|
|
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
#endif // !defined(ASIO_HAS_THREADS)
|
|
|
|
#endif // ASIO_DETAIL_NULL_THREAD_HPP
|