1// boost/chrono/config.hpp -------------------------------------------------//
2
3// Copyright Beman Dawes 2003, 2006, 2008
4// Copyright 2009-2011 Vicente J. Botet Escriba
5// Copyright (c) Microsoft Corporation 2014
6
7// Distributed under the Boost Software License, Version 1.0. (See accompanying
8// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
9
10// See http://www.boost.org/libs/chrono for documentation.
11
12#ifndef BOOST_CHRONO_CONFIG_HPP
13#define BOOST_CHRONO_CONFIG_HPP
14
15#include <boost/config.hpp>
16#include <boost/predef.h>
17
18#if !defined BOOST_CHRONO_VERSION
19#define BOOST_CHRONO_VERSION 1
20#else
21#if BOOST_CHRONO_VERSION!=1 && BOOST_CHRONO_VERSION!=2
22#error "BOOST_CHRONO_VERSION must be 1 or 2"
23#endif
24#endif
25
26#if defined(BOOST_CHRONO_SOURCE) && !defined(BOOST_USE_WINDOWS_H)
27#define BOOST_USE_WINDOWS_H
28#endif
29
30#if ! defined BOOST_CHRONO_PROVIDES_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT \
31 && ! defined BOOST_CHRONO_DONT_PROVIDE_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT
32
33# define BOOST_CHRONO_PROVIDES_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT
34
35#endif
36
37// BOOST_CHRONO_POSIX_API, BOOST_CHRONO_MAC_API, or BOOST_CHRONO_WINDOWS_API
38// can be defined by the user to specify which API should be used
39
40#if defined(BOOST_CHRONO_WINDOWS_API)
41# warning Boost.Chrono will use the Windows API
42#elif defined(BOOST_CHRONO_MAC_API)
43# warning Boost.Chrono will use the Mac API
44#elif defined(BOOST_CHRONO_POSIX_API)
45# warning Boost.Chrono will use the POSIX API
46#endif
47
48# if defined( BOOST_CHRONO_WINDOWS_API ) && defined( BOOST_CHRONO_POSIX_API )
49# error both BOOST_CHRONO_WINDOWS_API and BOOST_CHRONO_POSIX_API are defined
50# elif defined( BOOST_CHRONO_WINDOWS_API ) && defined( BOOST_CHRONO_MAC_API )
51# error both BOOST_CHRONO_WINDOWS_API and BOOST_CHRONO_MAC_API are defined
52# elif defined( BOOST_CHRONO_MAC_API ) && defined( BOOST_CHRONO_POSIX_API )
53# error both BOOST_CHRONO_MAC_API and BOOST_CHRONO_POSIX_API are defined
54# elif !defined( BOOST_CHRONO_WINDOWS_API ) && !defined( BOOST_CHRONO_MAC_API ) && !defined( BOOST_CHRONO_POSIX_API )
55# if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32))
56# define BOOST_CHRONO_WINDOWS_API
57# elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
58# define BOOST_CHRONO_MAC_API
59# else
60# define BOOST_CHRONO_POSIX_API
61# endif
62# endif
63
64# if defined( BOOST_CHRONO_WINDOWS_API )
65# ifndef UNDER_CE
66# define BOOST_CHRONO_HAS_PROCESS_CLOCKS
67# endif
68# define BOOST_CHRONO_HAS_CLOCK_STEADY
69# if BOOST_PLAT_WINDOWS_DESKTOP
70# define BOOST_CHRONO_HAS_THREAD_CLOCK
71# endif
72# define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
73# endif
74
75# if defined( BOOST_CHRONO_MAC_API )
76# define BOOST_CHRONO_HAS_PROCESS_CLOCKS
77# define BOOST_CHRONO_HAS_CLOCK_STEADY
78# define BOOST_CHRONO_HAS_THREAD_CLOCK
79# define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
80# endif
81
82# if defined( BOOST_CHRONO_POSIX_API )
83# define BOOST_CHRONO_HAS_PROCESS_CLOCKS
84# include <time.h> //to check for CLOCK_REALTIME and CLOCK_MONOTONIC and _POSIX_THREAD_CPUTIME
85# if defined(CLOCK_MONOTONIC)
86# define BOOST_CHRONO_HAS_CLOCK_STEADY
87# endif
88# if defined(_POSIX_THREAD_CPUTIME) && !defined(BOOST_DISABLE_THREADS)
89# define BOOST_CHRONO_HAS_THREAD_CLOCK
90# define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
91# endif
92# if defined(CLOCK_THREAD_CPUTIME_ID) && !defined(BOOST_DISABLE_THREADS)
93# define BOOST_CHRONO_HAS_THREAD_CLOCK
94# define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
95# endif
96# if defined(sun) || defined(__sun)
97# undef BOOST_CHRONO_HAS_THREAD_CLOCK
98# undef BOOST_CHRONO_THREAD_CLOCK_IS_STEADY
99# endif
100# if (defined(__HP_aCC) || defined(__GNUC__)) && defined(__hpux)
101# undef BOOST_CHRONO_HAS_THREAD_CLOCK
102# undef BOOST_CHRONO_THREAD_CLOCK_IS_STEADY
103# endif
104# if defined(__VXWORKS__)
105# undef BOOST_CHRONO_HAS_PROCESS_CLOCKS
106# endif
107# endif
108
109#if defined(BOOST_CHRONO_THREAD_DISABLED) && defined(BOOST_CHRONO_HAS_THREAD_CLOCK)
110#undef BOOST_CHRONO_HAS_THREAD_CLOCK
111#undef BOOST_CHRONO_THREAD_CLOCK_IS_STEADY
112#endif
113
114// unicode support ------------------------------//
115
116#if defined(BOOST_NO_CXX11_UNICODE_LITERALS) || defined(BOOST_NO_CXX11_CHAR16_T) || defined(BOOST_NO_CXX11_CHAR32_T)
117//~ #define BOOST_CHRONO_HAS_UNICODE_SUPPORT
118#else
119#define BOOST_CHRONO_HAS_UNICODE_SUPPORT 1
120#endif
121
122#ifndef BOOST_CHRONO_LIB_CONSTEXPR
123#if defined( BOOST_NO_CXX11_NUMERIC_LIMITS )
124#define BOOST_CHRONO_LIB_CONSTEXPR
125#elif defined(_LIBCPP_VERSION) && !defined(_LIBCPP_CONSTEXPR)
126 #define BOOST_CHRONO_LIB_CONSTEXPR
127#else
128 #define BOOST_CHRONO_LIB_CONSTEXPR BOOST_CONSTEXPR
129#endif
130#endif
131
132#if defined( BOOST_NO_CXX11_NUMERIC_LIMITS )
133# define BOOST_CHRONO_LIB_NOEXCEPT_OR_THROW throw()
134#else
135#ifdef BOOST_NO_CXX11_NOEXCEPT
136# define BOOST_CHRONO_LIB_NOEXCEPT_OR_THROW throw()
137#else
138# define BOOST_CHRONO_LIB_NOEXCEPT_OR_THROW noexcept
139#endif
140#endif
141
142#if defined BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING \
143 && defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
144#error "BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING && BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING defined"
145#endif
146
147#if defined BOOST_CHRONO_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 \
148 && defined BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
149#error "BOOST_CHRONO_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 && BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 defined"
150#endif
151
152#if ! defined BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING \
153 && ! defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
154#define BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING
155#endif
156
157#if (BOOST_CHRONO_VERSION == 2)
158#if ! defined BOOST_CHRONO_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 \
159 && ! defined BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
160#define BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
161#endif
162#endif
163
164#ifdef BOOST_CHRONO_HEADER_ONLY
165#define BOOST_CHRONO_INLINE inline
166#define BOOST_CHRONO_STATIC inline
167#define BOOST_CHRONO_DECL
168
169#else
170#define BOOST_CHRONO_INLINE
171#define BOOST_CHRONO_STATIC static
172
173// enable dynamic linking on Windows ---------------------------------------//
174
175// we need to import/export our code only if the user has specifically
176// asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
177// libraries to be dynamically linked, or BOOST_CHRONO_DYN_LINK
178// if they want just this one to be dynamically liked:
179#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_CHRONO_DYN_LINK)
180// export if this is our own source, otherwise import:
181#ifdef BOOST_CHRONO_SOURCE
182# define BOOST_CHRONO_DECL BOOST_SYMBOL_EXPORT
183#else
184# define BOOST_CHRONO_DECL BOOST_SYMBOL_IMPORT
185#endif // BOOST_CHRONO_SOURCE
186#endif // DYN_LINK
187//
188// if BOOST_CHRONO_DECL isn't defined yet define it now:
189#ifndef BOOST_CHRONO_DECL
190#define BOOST_CHRONO_DECL
191#endif
192
193
194
195// enable automatic library variant selection ------------------------------//
196
197#if !defined(BOOST_CHRONO_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_CHRONO_NO_LIB)
198//
199// Set the name of our library; this will get undef'ed by auto_link.hpp
200// once it's done with it:
201//
202#define BOOST_LIB_NAME boost_chrono
203//
204// If we're importing code from a dll, then tell auto_link.hpp about it:
205//
206#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_CHRONO_DYN_LINK)
207# define BOOST_DYN_LINK
208#endif
209//
210// And include the header that does the work:
211//
212#include <boost/config/auto_link.hpp>
213#endif // auto-linking disabled
214#endif // BOOST_CHRONO_HEADER_ONLY
215#endif // BOOST_CHRONO_CONFIG_HPP
216
217