1#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
2#define BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
3
4// MS compatible compilers support #pragma once
5
6#if defined(_MSC_VER) && (_MSC_VER >= 1020)
7# pragma once
8#endif
9
10//
11// boost/detail/spinlock.hpp
12//
13// Copyright (c) 2008 Peter Dimov
14//
15// Distributed under the Boost Software License, Version 1.0.
16// See accompanying file LICENSE_1_0.txt or copy at
17// http://www.boost.org/LICENSE_1_0.txt)
18//
19// struct spinlock
20// {
21// void lock();
22// bool try_lock();
23// void unlock();
24//
25// class scoped_lock;
26// };
27//
28// #define BOOST_DETAIL_SPINLOCK_INIT <unspecified>
29//
30
31#include <boost/config.hpp>
32#include <boost/smart_ptr/detail/sp_has_sync.hpp>
33
34#if defined( BOOST_SP_USE_STD_ATOMIC )
35# if !defined( __clang__ )
36# include <boost/smart_ptr/detail/spinlock_std_atomic.hpp>
37# else
38// Clang (at least up to 3.4) can't compile spinlock_pool when
39// using std::atomic, so substitute the __sync implementation instead.
40# include <boost/smart_ptr/detail/spinlock_sync.hpp>
41# endif
42
43#elif defined( BOOST_SP_USE_PTHREADS )
44# include <boost/smart_ptr/detail/spinlock_pt.hpp>
45
46#elif !defined( BOOST_NO_CXX11_HDR_ATOMIC )
47# include <boost/smart_ptr/detail/spinlock_std_atomic.hpp>
48
49#elif defined(__GNUC__) && defined( __arm__ ) && !defined( __thumb__ )
50# include <boost/smart_ptr/detail/spinlock_gcc_arm.hpp>
51
52#elif defined( BOOST_SP_HAS_SYNC )
53# include <boost/smart_ptr/detail/spinlock_sync.hpp>
54
55#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
56# include <boost/smart_ptr/detail/spinlock_w32.hpp>
57
58#elif defined(BOOST_HAS_PTHREADS)
59# include <boost/smart_ptr/detail/spinlock_pt.hpp>
60
61#elif !defined(BOOST_HAS_THREADS)
62# include <boost/smart_ptr/detail/spinlock_nt.hpp>
63
64#else
65# error Unrecognized threading platform
66#endif
67
68#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
69