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[ceph.git] / ceph / src / boost / boost / smart_ptr / detail / sp_interlocked.hpp
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7c673cae
FG		 1#ifndef BOOST_SMART_PTR_DETAIL_SP_INTERLOCKED_HPP_INCLUDED
2#define BOOST_SMART_PTR_DETAIL_SP_INTERLOCKED_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/sp_interlocked.hpp
12//
13// Copyright 2005, 2014 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
20#include <boost/config.hpp>
21
22// BOOST_SP_HAS_INTRIN_H
23
24// VC9 has intrin.h, but it collides with <utility>
25#if defined( BOOST_MSVC ) && BOOST_MSVC >= 1600
26
27# define BOOST_SP_HAS_INTRIN_H
28
29// Unlike __MINGW64__, __MINGW64_VERSION_MAJOR is defined by MinGW-w64 for both 32 and 64-bit targets.
30#elif defined( __MINGW64_VERSION_MAJOR )
31
32// MinGW-w64 provides intrin.h for both 32 and 64-bit targets.
33# define BOOST_SP_HAS_INTRIN_H
34
92f5a8d4
TL		 35#elif defined( __LP64__ )
36
37// We have to use intrin.h on Cygwin 64
38# define BOOST_SP_HAS_INTRIN_H
39
7c673cae
FG		 40// Intel C++ on Windows on VC10+ stdlib
41#elif defined( BOOST_INTEL_WIN ) && defined( _CPPLIB_VER ) && _CPPLIB_VER >= 520
42
43# define BOOST_SP_HAS_INTRIN_H
44
92f5a8d4
TL		 45// clang-cl on Windows on VC10+ stdlib
46#elif defined( __clang__ ) && defined( _MSC_VER ) && defined( _CPPLIB_VER ) && _CPPLIB_VER >= 520
47
48# define BOOST_SP_HAS_INTRIN_H
49
7c673cae
FG		 50#endif
51
52#if defined( BOOST_USE_WINDOWS_H )
53
54# include <windows.h>
55
56# define BOOST_SP_INTERLOCKED_INCREMENT InterlockedIncrement
57# define BOOST_SP_INTERLOCKED_DECREMENT InterlockedDecrement
58# define BOOST_SP_INTERLOCKED_COMPARE_EXCHANGE InterlockedCompareExchange
59# define BOOST_SP_INTERLOCKED_EXCHANGE InterlockedExchange
60# define BOOST_SP_INTERLOCKED_EXCHANGE_ADD InterlockedExchangeAdd
61
62#elif defined( BOOST_USE_INTRIN_H ) || defined( BOOST_SP_HAS_INTRIN_H )
63
64#include <intrin.h>
65
66# define BOOST_SP_INTERLOCKED_INCREMENT _InterlockedIncrement
67# define BOOST_SP_INTERLOCKED_DECREMENT _InterlockedDecrement
68# define BOOST_SP_INTERLOCKED_COMPARE_EXCHANGE _InterlockedCompareExchange
69# define BOOST_SP_INTERLOCKED_EXCHANGE _InterlockedExchange
70# define BOOST_SP_INTERLOCKED_EXCHANGE_ADD _InterlockedExchangeAdd
71
72#elif defined( _WIN32_WCE )
73
74#if _WIN32_WCE >= 0x600
75
76extern "C" long __cdecl _InterlockedIncrement( long volatile * );
77extern "C" long __cdecl _InterlockedDecrement( long volatile * );
78extern "C" long __cdecl _InterlockedCompareExchange( long volatile *, long, long );
79extern "C" long __cdecl _InterlockedExchange( long volatile *, long );
80extern "C" long __cdecl _InterlockedExchangeAdd( long volatile *, long );
81
82# define BOOST_SP_INTERLOCKED_INCREMENT _InterlockedIncrement
83# define BOOST_SP_INTERLOCKED_DECREMENT _InterlockedDecrement
84# define BOOST_SP_INTERLOCKED_COMPARE_EXCHANGE _InterlockedCompareExchange
85# define BOOST_SP_INTERLOCKED_EXCHANGE _InterlockedExchange
86# define BOOST_SP_INTERLOCKED_EXCHANGE_ADD _InterlockedExchangeAdd
87
88#else
89
90// under Windows CE we still have old-style Interlocked* functions
91
92extern "C" long __cdecl InterlockedIncrement( long* );
93extern "C" long __cdecl InterlockedDecrement( long* );
94extern "C" long __cdecl InterlockedCompareExchange( long*, long, long );
95extern "C" long __cdecl InterlockedExchange( long*, long );
96extern "C" long __cdecl InterlockedExchangeAdd( long*, long );
97
98# define BOOST_SP_INTERLOCKED_INCREMENT InterlockedIncrement
99# define BOOST_SP_INTERLOCKED_DECREMENT InterlockedDecrement
100# define BOOST_SP_INTERLOCKED_COMPARE_EXCHANGE InterlockedCompareExchange
101# define BOOST_SP_INTERLOCKED_EXCHANGE InterlockedExchange
102# define BOOST_SP_INTERLOCKED_EXCHANGE_ADD InterlockedExchangeAdd
103
104#endif
105
106#elif defined( BOOST_MSVC ) || defined( BOOST_INTEL_WIN )
107
108#if defined( __CLRCALL_PURE_OR_CDECL )
109
110extern "C" long __CLRCALL_PURE_OR_CDECL _InterlockedIncrement( long volatile * );
111extern "C" long __CLRCALL_PURE_OR_CDECL _InterlockedDecrement( long volatile * );
112extern "C" long __CLRCALL_PURE_OR_CDECL _InterlockedCompareExchange( long volatile *, long, long );
113extern "C" long __CLRCALL_PURE_OR_CDECL _InterlockedExchange( long volatile *, long );
114extern "C" long __CLRCALL_PURE_OR_CDECL _InterlockedExchangeAdd( long volatile *, long );
115
116#else
117
118extern "C" long __cdecl _InterlockedIncrement( long volatile * );
119extern "C" long __cdecl _InterlockedDecrement( long volatile * );
120extern "C" long __cdecl _InterlockedCompareExchange( long volatile *, long, long );
121extern "C" long __cdecl _InterlockedExchange( long volatile *, long );
122extern "C" long __cdecl _InterlockedExchangeAdd( long volatile *, long );
123
124# if defined( BOOST_MSVC ) && BOOST_MSVC == 1310
125//From MSDN, Visual Studio .NET 2003 spedific: To declare one of the interlocked functions
126//for use as an intrinsic, the function must be declared with the leading underscore and
127//the new function must appear in a #pragma intrinsic statement.
128# pragma intrinsic( _InterlockedIncrement )
129# pragma intrinsic( _InterlockedDecrement )
130# pragma intrinsic( _InterlockedCompareExchange )
131# pragma intrinsic( _InterlockedExchange )
132# pragma intrinsic( _InterlockedExchangeAdd )
133# endif
134
135#endif
136
137# define BOOST_SP_INTERLOCKED_INCREMENT _InterlockedIncrement
138# define BOOST_SP_INTERLOCKED_DECREMENT _InterlockedDecrement
139# define BOOST_SP_INTERLOCKED_COMPARE_EXCHANGE _InterlockedCompareExchange
140# define BOOST_SP_INTERLOCKED_EXCHANGE _InterlockedExchange
141# define BOOST_SP_INTERLOCKED_EXCHANGE_ADD _InterlockedExchangeAdd
142
143#elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined( __CYGWIN__ )
144
145namespace boost
146{
147
148namespace detail
149{
150
151extern "C" __declspec(dllimport) long __stdcall InterlockedIncrement( long volatile * );
152extern "C" __declspec(dllimport) long __stdcall InterlockedDecrement( long volatile * );
153extern "C" __declspec(dllimport) long __stdcall InterlockedCompareExchange( long volatile *, long, long );
154extern "C" __declspec(dllimport) long __stdcall InterlockedExchange( long volatile *, long );
155extern "C" __declspec(dllimport) long __stdcall InterlockedExchangeAdd( long volatile *, long );
156
157} // namespace detail
158
159} // namespace boost
160
161# define BOOST_SP_INTERLOCKED_INCREMENT ::boost::detail::InterlockedIncrement
162# define BOOST_SP_INTERLOCKED_DECREMENT ::boost::detail::InterlockedDecrement
163# define BOOST_SP_INTERLOCKED_COMPARE_EXCHANGE ::boost::detail::InterlockedCompareExchange
164# define BOOST_SP_INTERLOCKED_EXCHANGE ::boost::detail::InterlockedExchange
165# define BOOST_SP_INTERLOCKED_EXCHANGE_ADD ::boost::detail::InterlockedExchangeAdd
166
167#else
168
169# error "Interlocked intrinsics not available"
170
171#endif
172
173#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_INTERLOCKED_HPP_INCLUDED
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