1 /* xbt.h - Public interface to the xbt (simgrid's toolbox) */
3 /* Copyright (c) 2004-2015. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include "simgrid_config.h"
14 /* Define _GNU_SOURCE for getline, isfinite, etc. */
19 /* Attributes are only in recent versions of GCC */
20 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4))
22 /* On MinGW, stdio.h defines __MINGW_PRINTF_FORMAT and __MINGW_SCANF_FORMAT
23 which are the suitable format style (either gnu_printf or ms_printf)
24 depending on which version is available (__USE_MINGW_ANSI_STDIO): */
29 #if defined(__MINGW32__) && defined(__MINGW_PRINTF_FORMAT)
30 # define _XBT_GNUC_PRINTF( format_idx, arg_idx ) \
31 __attribute__((__format__ (__MINGW_PRINTF_FORMAT, format_idx, arg_idx)))
33 # define _XBT_GNUC_PRINTF( format_idx, arg_idx ) \
34 __attribute__((__format__ (__printf__, format_idx, arg_idx)))
37 #if defined(__MINGW32__) && defined(__MINGW_SCANF_FORMAT)
38 # define _XBT_GNUC_SCANF( format_idx, arg_idx ) \
39 __attribute__((__MINGW_SCANF_FORMAT (__scanf__, format_idx, arg_idx)))
41 # define _XBT_GNUC_SCANF( format_idx, arg_idx ) \
42 __attribute__((__format__ (__scanf__, format_idx, arg_idx)))
45 # define _XBT_GNUC_NORETURN __attribute__((__noreturn__))
46 # define _XBT_GNUC_UNUSED __attribute__((__unused__))
48 /* Constructor priorities exist since gcc 4.3. Apparently, they are however not
49 * supported on Macs. */
50 # if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__APPLE__)
51 # define _XBT_GNUC_CONSTRUCTOR(prio) __attribute__((__constructor__ (prio)))
52 # define _XBT_GNUC_DESTRUCTOR(prio) __attribute__((__destructor__ (prio)))
54 # define _XBT_GNUC_CONSTRUCTOR(prio) __attribute__((__constructor__))
55 # define _XBT_GNUC_DESTRUCTOR(prio) __attribute__((__destructor__))
57 # undef _XBT_NEED_INIT_PRAGMA
60 # define _XBT_GNUC_PRINTF( format_idx, arg_idx )
61 # define _XBT_GNUC_SCANF( format_idx, arg_idx )
62 # define _XBT_GNUC_NORETURN
63 # define _XBT_GNUC_UNUSED
64 # define _XBT_GNUC_CONSTRUCTOR(prio)
65 # define _XBT_GNUC_DESTRUCTOR(prio)
66 # define _XBT_NEED_INIT_PRAGMA 1
68 #endif /* !__GNUC__ */
70 /* inline and __FUNCTION__ are only in GCC when -ansi is off */
72 #if defined(__GNUC__) && ! defined(__STRICT_ANSI__)
73 # define _XBT_FUNCTION __FUNCTION__
74 #elif (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
75 # define _XBT_FUNCTION __func__ /* ISO-C99 compliant */
77 # define _XBT_FUNCTION "function"
84 # if defined(__GNUC__) && ! defined(__STRICT_ANSI__)
85 # define XBT_INLINE inline
86 # elif (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
87 # define XBT_INLINE inline
92 # if defined (_MSC_VER)
93 # define XBT_INLINE __inline
95 # define XBT_INLINE inline
97 # endif /* __cplusplus */
100 #if defined(__GNUC__)
101 # define XBT_ALWAYS_INLINE inline __attribute__ ((always_inline))
103 # define XBT_ALWAYS_INLINE XBT_INLINE
106 /* improvable on gcc (by evaluating arguments only once), but wouldn't be portable */
110 #define MIN(a,b) ((a)<(b)?(a):(b))
115 #define MAX(a,b) ((a)>(b)?(a):(b))
118 * Expands to `one' if there is only one argument for the variadic part.
119 * Otherwise, expands to `more'.
120 * Works with up to 63 arguments, which is the maximum mandated by the C99
123 #define _XBT_IF_ONE_ARG(one, more, ...) \
124 _XBT_IF_ONE_ARG_(__VA_ARGS__, \
125 more, more, more, more, more, more, more, more, \
126 more, more, more, more, more, more, more, more, \
127 more, more, more, more, more, more, more, more, \
128 more, more, more, more, more, more, more, more, \
129 more, more, more, more, more, more, more, more, \
130 more, more, more, more, more, more, more, more, \
131 more, more, more, more, more, more, more, more, \
132 more, more, more, more, more, more, more, one)
133 #define _XBT_IF_ONE_ARG_(a64, a63, a62, a61, a60, a59, a58, a57, \
134 a56, a55, a54, a53, a52, a51, a50, a49, \
135 a48, a47, a46, a45, a44, a43, a42, a41, \
136 a40, a39, a38, a37, a36, a35, a34, a33, \
137 a32, a31, a30, a29, a28, a27, a26, a25, \
138 a24, a23, a22, a21, a20, a19, a18, a17, \
139 a16, a15, a14, a13, a12, a11, a10, a9, \
140 a8, a7, a6, a5, a4, a3, a2, a1, N, ...) N
143 * Function calling convention (not used for now)
148 # define _XBT_CALL __cdecl
154 /* Handle import/export stuff
156 * Rational of XBT_PUBLIC:
157 * * This is for library symbols visible from the application-land.
158 * Basically, any symbols defined in the include/directory must be
159 * like this (plus some other globals).
161 * UNIX coders should just think of it as a special way to say "extern".
163 * * If you build the DLL, define the DLL_EXPORT symbol so that all symbols
164 * actually get exported by this file.
166 * * If you do a static windows compilation, define DLL_STATIC, both when
167 * compiling the application files and when compiling the library.
169 * * If you link your application against the DLL or if you do a UNIX build,
170 * don't do anything special. This file will do the right thing for you
174 * Rational of XBT_EXPORT_NO_IMPORT: (windows-only)
175 * * Symbols which must be exported in the DLL, but not imported from it.
177 * * This is obviously useful for initialized globals (which cannot be
178 * extern or similar).
179 * * This is also used in the log mechanism where a macro creates the
180 * variable automatically. When the macro is called from within SimGrid,
181 * the symbol must be exported, but when called from within the client
182 * code, it must not try to retrieve the symbol from the DLL since it's
185 * Rational of XBT_IMPORT_NO_EXPORT: (windows-only)
186 * * Symbols which must be imported from the DLL, but not explicitly
189 * * The root log category is already exported, but not imported explicitly
190 * when creating a subcategory since we cannot import the parent category
191 * to deal with the fact that the parent may be in application space, not
196 #if defined(DLL_EXPORT)
197 # define XBT_PUBLIC(type) __declspec(dllexport) type
198 # define XBT_EXPORT_NO_IMPORT(type) __declspec(dllexport) type
199 # define XBT_IMPORT_NO_EXPORT(type) type
200 # define XBT_PUBLIC_DATA(type) extern __declspec(dllexport) type
201 # define XBT_PUBLIC_CLASS class __declspec(dllexport)
204 /* Pack everything up statically */
205 #elif defined(DLL_STATIC)
206 # define XBT_PUBLIC(type) type
207 # define XBT_EXPORT_NO_IMPORT(type) type
208 # define XBT_IMPORT_NO_EXPORT(type) type
209 # define XBT_PUBLIC_DATA(type) extern type
210 # define XBT_PUBLIC_CLASS class
213 /* Link against the DLL */
214 #elif (defined(_XBT_WIN32) && !defined(DLL_EXPORT) && !defined(DLL_STATIC))
215 # define XBT_PUBLIC(type) __declspec(dllimport) type
216 # define XBT_EXPORT_NO_IMPORT(type) type
217 # define XBT_IMPORT_NO_EXPORT(type) __declspec(dllimport) type
218 # define XBT_PUBLIC_DATA(type) extern __declspec(dllimport) type
219 # define XBT_PUBLIC_CLASS class __declspec(dllimport)
224 # define XBT_PUBLIC(type) type
225 # define XBT_EXPORT_NO_IMPORT(type) type
226 # define XBT_IMPORT_NO_EXPORT(type) type
227 # define XBT_PUBLIC_DATA(type) extern type
228 # define XBT_PUBLIC_CLASS class
235 #define XBT_INTERNAL __attribute__((visibility ("hidden")))
238 #if !defined (max) && !defined(__cplusplus)
239 # define max(a,b) (((a) > (b)) ? (a) : (b))
241 #if !defined (min) && !defined(__cplusplus)
242 # define min(a,b) (((a) < (b)) ? (a) : (b))
248 /*! C++ users need love */
249 #ifndef SG_BEGIN_DECL
251 # define SG_BEGIN_DECL() extern "C" {
253 # define SG_BEGIN_DECL()
259 # define SG_END_DECL() }
261 # define SG_END_DECL()
264 /* End of cruft for C++ */