X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6591c9df82136dbb9cb6e5b09651b3441f02e3e8..6613d5a1da400fda1d9c4fc36c0e232ae7aabaef:/include/xbt/misc.h

diff --git a/include/xbt/misc.h b/include/xbt/misc.h
index bdb27d2017..51e23cfb65 100644
--- a/include/xbt/misc.h
+++ b/include/xbt/misc.h
@@ -21,26 +21,121 @@
 # define _XBT_GNUC_FORMAT( arg_idx )                \
 		   __attribute__((__format_arg__ (arg_idx)))
 # define _XBT_GNUC_NORETURN __attribute__((__noreturn__))
+# define _XBT_GNUC_UNUSED  __attribute__((unused))
 
 #else   /* !__GNUC__ */
 # define _XBT_GNUC_PRINTF( format_idx, arg_idx )
 # define _XBT_GNUC_SCANF( format_idx, arg_idx )
 # define _XBT_GNUC_FORMAT( arg_idx )
 # define _XBT_GNUC_NORETURN
+# define _XBT_GNUC_UNUSED
 
 #endif  /* !__GNUC__ */
 
 /* inline and __FUNCTION__ are only in GCC when -ansi is off */
 
 #if defined(__GNUC__) && ! defined(__STRICT_ANSI__)
-
-# define _XBT_GNUC_FUNCTION __FUNCTION__
-# define _XBT_INLINE inline
+# define _XBT_FUNCTION __FUNCTION__
+#elif (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
+# define _XBT_FUNC__ __func__      /* ISO-C99 compliant */
 #else
-# define _XBT_GNUC_FUNCTION "function"
-# define _XBT_INLINE 
+# define _XBT_FUNCTION "function"
+#endif
+
+#ifndef __cplusplus
+#    if defined(__GNUC__) && ! defined(__STRICT_ANSI__)
+#        define XBT_INLINE inline
+#    elif (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
+#        define XBT_INLINE inline
+#    elif defined(__BORLANDC__) && !defined(__STRICT_ANSI__)
+#        define XBT_INLINE __inline
+#    else
+#        define XBT_INLINE
+#    endif
+# else
+#    define XBT_INLINE  inline
 #endif
 
+/* 
+ * Function calling convention (not used for now) 
+ */
+ 
+#ifdef _WIN32
+#  ifndef _XBT_CALL
+#    define _XBT_CALL __cdecl
+#   endif
+#else 
+#  define _XBT_CALL
+#endif
+
+/* Handle import/export stuff
+ * 
+ * Rational 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). 
+ *
+ *     UNIX coders should just think of it as a special way to say "extern".
+ *
+ *   * If you build the DLL, define the DLL_EXPORT symbol so that all symbols
+ *     actually get exported by this file.
+
+ *   * If you do a static windows compilation, define DLL_STATIC, both when
+ *     compiling the application files and when compiling the library.
+ *
+ *   * 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 cruft)
+ *   * 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).
+ *   * This is also used in the log mecanism where a macro creates the 
+ *     variable automatically. When the macro is 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 cruft)
+ *   * Symbols which must be imported from the DLL, but not explicitely 
+ *     exported from it.
+ * 
+ *   * The root log category is already exported, but not imported explicitely 
+ *     when creating a subcategory since we cannot import the parent category 
+ *     to deal with the fact that the parent may be in application space, not 
+ *     DLL space.
+ */
+
+
+/* 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 
+
+/* Pack everything up statically */
+#elif defined(DLL_STATIC) 
+#  define XBT_PUBLIC(type)            type
+#  define XBT_EXPORT_NO_IMPORT(type)  type
+#  define XBT_IMPORT_NO_EXPORT(type)  type 
+
+/* Link against the DLL */
+#elif defined(_WIN32) 
+#  define XBT_PUBLIC(type)            __declspec(dllimport) type
+#  define XBT_EXPORT_NO_IMPORT(type)  type
+#  define XBT_IMPORT_NO_EXPORT(type)  __declspec(dllimport) type
+
+/* Non-UNIX build. Let's keep sain here ;) */
+#else 
+#  define XBT_PUBLIC(type)            extern type
+#  define XBT_EXPORT_NO_IMPORT(type)  type
+#  define XBT_IMPORT_NO_EXPORT(type)  type
+#endif
+   
+
 
 
 #ifndef max
@@ -55,31 +150,34 @@
 
 #define XBT_MAX_CHANNEL 10 /* FIXME: killme */
 /*! C++ users need love */
-#ifndef BEGIN_DECL
+#ifndef SG_BEGIN_DECL
 # ifdef __cplusplus
-#  define BEGIN_DECL() extern "C" {
+#  define SG_BEGIN_DECL() extern "C" {
 # else
-#  define BEGIN_DECL() 
+#  define SG_BEGIN_DECL() 
 # endif
 #endif
 
 /*! C++ users need love */
-#ifndef END_DECL
+#ifndef SG_END_DECL
 # ifdef __cplusplus
-#  define END_DECL() }
+#  define SG_END_DECL() }
 # else
-#  define END_DECL() 
+#  define SG_END_DECL() 
 # endif
 #endif
 /* End of cruft for C++ */
 
-BEGIN_DECL()
-/* Dunno where to place this: needed by config and amok */
-typedef struct {  
-   char *name;
-   int port;
-} xbt_host_t;
+SG_BEGIN_DECL()
+
+XBT_PUBLIC(const char *)xbt_procname(void);
 
-END_DECL()
+#define XBT_BACKTRACE_SIZE 10 /* FIXME: better place? Do document */
+   
+SG_END_DECL()
 
 #endif /* XBT_MISC_H */
+
+
+
+