X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/025e9b46ddcf40fa23c435b365ffe56917a1960b..76c70a751b2ef94044ccb57c6c9cff83e0aec728:/include/xbt/base.h diff --git a/include/xbt/base.h b/include/xbt/base.h index d042d98d86..53f71a36ce 100644 --- a/include/xbt/base.h +++ b/include/xbt/base.h @@ -1,7 +1,6 @@ -/* xbt.h - Public interface to the xbt (simgrid's toolbox) */ +/* xbt.h - Public interface to the xbt (simgrid's toolbox) */ -/* Copyright (c) 2004-2015. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2004-2018. The SimGrid Team. All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -9,66 +8,92 @@ #ifndef XBT_BASE_H #define XBT_BASE_H -#include "simgrid_config.h" - /* Define _GNU_SOURCE for getline, isfinite, etc. */ #ifndef _GNU_SOURCE - #define _GNU_SOURCE +# define _GNU_SOURCE +#endif + +// Teach the compiler that some code path is unreacheable: +#if defined(__has_builtin) +# if __has_builtin(__builtin_unreachable) +# define XBT_UNREACHABLE() __builtin_unreachable() +# else +# include +# define XBT_UNREACHABLE() abort() +# endif +#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) +# define XBT_UNREACHABLE() __builtin_unreachable() +#else +# include +# define XBT_UNREACHABLE() abort() #endif /* On MinGW, stdio.h defines __MINGW_PRINTF_FORMAT and __MINGW_SCANF_FORMAT which are the suitable format style (either gnu_printf or ms_printf) depending on which version is available (__USE_MINGW_ANSI_STDIO): */ #ifdef __MINGW32__ - #include +# include - # define XBT_ATTRIB_PRINTF( format_idx, arg_idx ) \ +# define XBT_ATTRIB_PRINTF( format_idx, arg_idx ) \ __attribute__((__format__ (__MINGW_PRINTF_FORMAT, format_idx, arg_idx))) - # define XBT_ATTRIB_SCANF( format_idx, arg_idx ) \ - __attribute__((__MINGW_SCANF_FORMAT (__scanf__, format_idx, arg_idx))) +# define XBT_ATTRIB_SCANF( format_idx, arg_idx ) \ + __attribute__((__MINGW_SCANF_FORMAT (__scanf__, format_idx, arg_idx))) #else - # define XBT_ATTRIB_PRINTF( format_idx, arg_idx ) \ +# define XBT_ATTRIB_PRINTF( format_idx, arg_idx ) \ __attribute__((__format__ (__printf__, format_idx, arg_idx))) - # define XBT_ATTRIB_SCANF( format_idx, arg_idx ) \ - __attribute__((__format__ (__scanf__, format_idx, arg_idx))) +# define XBT_ATTRIB_SCANF( format_idx, arg_idx ) \ + __attribute__((__format__ (__scanf__, format_idx, arg_idx))) #endif -# define XBT_ATTRIB_NORETURN __attribute__((__noreturn__)) -# define XBT_ATTRIB_UNUSED __attribute__((__unused__)) +#if defined(__cplusplus) +#if __cplusplus >= 201103L +#define XBT_ATTRIB_NORETURN [[noreturn]] +#endif +#if __cplusplus >= 201703L +#define XBT_ATTRIB_UNUSED [[maybe_unused]] +#endif +#if __cplusplus >= 201402L +#define XBT_ATTRIB_DEPRECATED(mesg) [[deprecated(mesg)]] +#endif +#elif defined(__STDC_VERSION__) +#if __STDC_VERSION__ >= 201112L +#define XBT_ATTRIB_NORETURN _Noreturn +#endif +#endif -/* Constructor priorities exist since gcc 4.3. Apparently, they are however not - * supported on Macs. */ -# if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__APPLE__) -# define _XBT_GNUC_CONSTRUCTOR(prio) __attribute__((__constructor__ (prio))) -# define _XBT_GNUC_DESTRUCTOR(prio) __attribute__((__destructor__ (prio))) -# else -# define _XBT_GNUC_CONSTRUCTOR(prio) __attribute__((__constructor__)) -# define _XBT_GNUC_DESTRUCTOR(prio) __attribute__((__destructor__)) -# endif -# undef _XBT_NEED_INIT_PRAGMA +#ifndef XBT_ATTRIB_NORETURN +#define XBT_ATTRIB_NORETURN __attribute__((noreturn)) +#endif +#ifndef XBT_ATTRIB_UNUSED +#define XBT_ATTRIB_UNUSED __attribute__((unused)) +#endif +#ifndef XBT_ATTRIB_DEPRECATED +#define XBT_ATTRIB_DEPRECATED(mesg) __attribute__((deprecated(mesg))) +#endif -#if defined(__GNUC__) -# define XBT_ALWAYS_INLINE inline __attribute__ ((always_inline)) +#define XBT_ATTRIB_DEPRECATED_v322(mesg) XBT_ATTRIB_DEPRECATED(mesg) /* Will be dropped in v3.22 */ +#define XBT_ATTRIB_DEPRECATED_v323(mesg) \ + XBT_ATTRIB_DEPRECATED(mesg " (this compatibility wrapper will be dropped in v3.23)") /* Will be dropped in v3.23 */ + +#if !defined(__APPLE__) +# define XBT_ATTRIB_CONSTRUCTOR(prio) __attribute__((__constructor__(prio))) +# define XBT_ATTRIB_DESTRUCTOR(prio) __attribute__((__destructor__(prio))) #else -# define XBT_ALWAYS_INLINE inline +# define XBT_ATTRIB_CONSTRUCTOR(prio) __attribute__((__constructor__)) +# define XBT_ATTRIB_DESTRUCTOR(prio) __attribute__((__destructor__)) #endif #if defined(__GNUC__) -# define XBT_THREAD_LOCAL __thread +# define XBT_ALWAYS_INLINE inline __attribute__ ((always_inline)) #else -# define XBT_THREAD_LOCAL No thread local on this architecture +# define XBT_ALWAYS_INLINE inline #endif -/* improvable on gcc (by evaluating arguments only once), but wouldn't be portable */ -#ifdef MIN -# undef MIN -#endif -#define MIN(a,b) ((a)<(b)?(a):(b)) - -#ifdef MAX -# undef MAX +#if defined(__GNUC__) +# define XBT_THREAD_LOCAL __thread +#else +# define XBT_THREAD_LOCAL No thread local on this architecture #endif -#define MAX(a,b) ((a)>(b)?(a):(b)) /* * Expands to `one' if there is only one argument for the variadic part. @@ -96,7 +121,7 @@ /* Handle import/export stuff * - * Rational of XBT_PUBLIC: + * Rationale of XBT_PUBLIC: * * This is for library symbols visible from the application-land. * Basically, any symbols defined in the include/directory must be like this (plus some other globals). * @@ -107,7 +132,7 @@ * * If you link your application against the DLL or if you do a UNIX build, don't do anything special. This file * will do the right thing for you by default. * - * Rational of XBT_EXPORT_NO_IMPORT: (windows-only) + * Rationale of XBT_EXPORT_NO_IMPORT: (windows-only) * * Symbols which must be exported in the DLL, but not imported from it. * * * This is obviously useful for initialized globals (which cannot be extern or similar). @@ -115,7 +140,7 @@ * called from within SimGrid, the symbol must be exported, but when called from within the client code, it must * not try to retrieve the symbol from the DLL since it's not in there. * - * Rational of XBT_IMPORT_NO_EXPORT: (windows-only) + * Rationale of XBT_IMPORT_NO_EXPORT: (windows-only) * * Symbols which must be imported from the DLL, but not explicitly exported from it. * * * The root log category is already exported, but not imported explicitly when creating a subcategory since we @@ -125,44 +150,37 @@ /* Build the DLL */ #if defined(DLL_EXPORT) -# define XBT_PUBLIC(type) __declspec(dllexport) type -# define XBT_EXPORT_NO_IMPORT(type) __declspec(dllexport) type -# define XBT_IMPORT_NO_EXPORT(type) type -# define XBT_PUBLIC_DATA(type) extern __declspec(dllexport) type -# define XBT_PUBLIC_CLASS class __declspec(dllexport) +# define XBT_PUBLIC __declspec(dllexport) +# define XBT_EXPORT_NO_IMPORT __declspec(dllexport) +# define XBT_IMPORT_NO_EXPORT +# define XBT_PUBLIC_DATA extern __declspec(dllexport) # define XBT_PRIVATE /* Link against the DLL */ #elif (defined(_WIN32) && !defined(DLL_EXPORT)) -# define XBT_PUBLIC(type) __declspec(dllimport) type -# define XBT_EXPORT_NO_IMPORT(type) type -# define XBT_IMPORT_NO_EXPORT(type) __declspec(dllimport) type -# define XBT_PUBLIC_DATA(type) extern __declspec(dllimport) type -# define XBT_PUBLIC_CLASS class __declspec(dllimport) +# define XBT_PUBLIC __declspec(dllimport) +# define XBT_EXPORT_NO_IMPORT +# define XBT_IMPORT_NO_EXPORT __declspec(dllimport) +# define XBT_PUBLIC_DATA extern __declspec(dllimport) # define XBT_PRIVATE -#elif defined(__ELF__) -# define XBT_PUBLIC(type) __attribute__((visibility("default"))) type -# define XBT_EXPORT_NO_IMPORT(type) __attribute__((visibility("default"))) type -# define XBT_IMPORT_NO_EXPORT(type) __attribute__((visibility("default"))) type -# define XBT_PUBLIC_DATA(type) extern __attribute__((visibility("default"))) type -# define XBT_PUBLIC_CLASS class __attribute__((visibility("default"))) -# define XBT_PRIVATE __attribute__((visibility("hidden"))) +#elif defined(__ELF__) +# define XBT_PUBLIC __attribute__((visibility("default"))) +# define XBT_EXPORT_NO_IMPORT __attribute__((visibility("default"))) +# define XBT_IMPORT_NO_EXPORT __attribute__((visibility("default"))) +# define XBT_PUBLIC_DATA extern __attribute__((visibility("default"))) +# define XBT_PRIVATE __attribute__((visibility("hidden"))) #else -# define XBT_PUBLIC(type) type -# define XBT_EXPORT_NO_IMPORT(type) type -# define XBT_IMPORT_NO_EXPORT(type) type -# define XBT_PUBLIC_DATA(type) extern type -# define XBT_PUBLIC_CLASS class -# define XBT_PRIVATE +# define XBT_PUBLIC /* public */ +# define XBT_EXPORT_NO_IMPORT +# define XBT_IMPORT_NO_EXPORT +# define XBT_PUBLIC_DATA extern +# define XBT_PRIVATE /** @private */ #endif -#define TRUE 1 -#define FALSE 0 - -/*! C++ users need love */ +/* C++ users need love */ #ifndef SG_BEGIN_DECL # ifdef __cplusplus # define SG_BEGIN_DECL() extern "C" {