| /* GLIB - Library of useful routines for C programming |
| * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| /* |
| * Modified by the GLib Team and others 1997-2000. See the AUTHORS |
| * file for a list of people on the GLib Team. See the ChangeLog |
| * files for a list of changes. These files are distributed with |
| * GLib at ftp://ftp.gtk.org/pub/gtk/. |
| */ |
| |
| #ifndef __G_UTILS_H__ |
| #define __G_UTILS_H__ |
| |
| #include <glib/gtypes.h> |
| #include <stdarg.h> |
| |
| G_BEGIN_DECLS |
| |
| #ifdef G_OS_WIN32 |
| |
| /* On native Win32, directory separator is the backslash, and search path |
| * separator is the semicolon. |
| */ |
| #define G_DIR_SEPARATOR '\\' |
| #define G_DIR_SEPARATOR_S "\\" |
| #define G_SEARCHPATH_SEPARATOR ';' |
| #define G_SEARCHPATH_SEPARATOR_S ";" |
| |
| #else /* !G_OS_WIN32 */ |
| |
| /* Unix */ |
| |
| #define G_DIR_SEPARATOR '/' |
| #define G_DIR_SEPARATOR_S "/" |
| #define G_SEARCHPATH_SEPARATOR ':' |
| #define G_SEARCHPATH_SEPARATOR_S ":" |
| |
| #endif /* !G_OS_WIN32 */ |
| |
| /* Define G_VA_COPY() to do the right thing for copying va_list variables. |
| * glibconfig.h may have already defined G_VA_COPY as va_copy or __va_copy. |
| */ |
| #if !defined (G_VA_COPY) |
| # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32)) |
| # define G_VA_COPY(ap1, ap2) (*(ap1) = *(ap2)) |
| # elif defined (G_VA_COPY_AS_ARRAY) |
| # define G_VA_COPY(ap1, ap2) g_memmove ((ap1), (ap2), sizeof (va_list)) |
| # else /* va_list is a pointer */ |
| # define G_VA_COPY(ap1, ap2) ((ap1) = (ap2)) |
| # endif /* va_list is a pointer */ |
| #endif /* !G_VA_COPY */ |
| |
| /* inlining hassle. for compilers that don't allow the `inline' keyword, |
| * mostly because of strict ANSI C compliance or dumbness, we try to fall |
| * back to either `__inline__' or `__inline'. |
| * we define G_CAN_INLINE, if the compiler seems to be actually |
| * *capable* to do function inlining, in which case inline function bodys |
| * do make sense. we also define G_INLINE_FUNC to properly export the |
| * function prototypes if no inlining can be performed. |
| * inline function bodies have to be special cased with G_CAN_INLINE and a |
| * .c file specific macro to allow one compiled instance with extern linkage |
| * of the functions by defining G_IMPLEMENT_INLINES and the .c file macro. |
| */ |
| #ifdef G_IMPLEMENT_INLINES |
| # define G_INLINE_FUNC extern |
| # undef G_CAN_INLINE |
| #endif |
| #ifndef G_INLINE_FUNC |
| # define G_CAN_INLINE 1 |
| #endif |
| #if defined (G_HAVE_INLINE) && defined (__GNUC__) && defined (__STRICT_ANSI__) |
| # undef inline |
| # define inline __inline__ |
| #elif !defined (G_HAVE_INLINE) |
| # undef inline |
| # if defined (G_HAVE___INLINE__) |
| # define inline __inline__ |
| # elif defined (G_HAVE___INLINE) |
| # define inline __inline |
| # else /* !inline && !__inline__ && !__inline */ |
| # define inline /* don't inline, then */ |
| # ifndef G_INLINE_FUNC |
| # undef G_CAN_INLINE |
| # endif |
| # endif |
| #endif |
| #ifndef G_INLINE_FUNC |
| # if defined (__GNUC__) && (__OPTIMIZE__) |
| # define G_INLINE_FUNC extern inline |
| # elif defined (G_CAN_INLINE) && !defined (__GNUC__) |
| # define G_INLINE_FUNC static inline |
| # else /* can't inline */ |
| # define G_INLINE_FUNC extern |
| # undef G_CAN_INLINE |
| # endif |
| #endif /* !G_INLINE_FUNC */ |
| |
| /* Retrive static string info |
| */ |
| G_CONST_RETURN gchar* g_get_user_name (void); |
| G_CONST_RETURN gchar* g_get_real_name (void); |
| G_CONST_RETURN gchar* g_get_home_dir (void); |
| G_CONST_RETURN gchar* g_get_tmp_dir (void); |
| gchar* g_get_prgname (void); |
| void g_set_prgname (const gchar *prgname); |
| G_CONST_RETURN gchar* g_get_application_name (void); |
| void g_set_application_name (const gchar *application_name); |
| |
| |
| typedef struct _GDebugKey GDebugKey; |
| struct _GDebugKey |
| { |
| gchar *key; |
| guint value; |
| }; |
| |
| /* Miscellaneous utility functions |
| */ |
| guint g_parse_debug_string (const gchar *string, |
| const GDebugKey *keys, |
| guint nkeys); |
| |
| gint g_snprintf (gchar *string, |
| gulong n, |
| gchar const *format, |
| ...) G_GNUC_PRINTF (3, 4); |
| gint g_vsnprintf (gchar *string, |
| gulong n, |
| gchar const *format, |
| va_list args); |
| |
| /* Check if a file name is an absolute path */ |
| gboolean g_path_is_absolute (const gchar *file_name); |
| |
| /* In case of absolute paths, skip the root part */ |
| G_CONST_RETURN gchar* g_path_skip_root (const gchar *file_name); |
| |
| #ifndef G_DISABLE_DEPRECATED |
| |
| /* These two functions are deprecated and will be removed in the next |
| * major release of GLib. Use g_path_get_dirname/g_path_get_basename |
| * instead. Whatch out! The string returned by g_path_get_basename |
| * must be g_freed, while the string returned by g_basename must not.*/ |
| G_CONST_RETURN gchar* g_basename (const gchar *file_name); |
| #define g_dirname g_path_get_dirname |
| |
| #endif /* G_DISABLE_DEPRECATED */ |
| |
| /* The returned strings are newly allocated with g_malloc() */ |
| gchar* g_get_current_dir (void); |
| gchar* g_path_get_basename (const gchar *file_name); |
| gchar* g_path_get_dirname (const gchar *file_name); |
| |
| |
| /* Set the pointer at the specified location to NULL */ |
| void g_nullify_pointer (gpointer *nullify_location); |
| |
| /* Get the codeset for the current locale */ |
| /* gchar * g_get_codeset (void); */ |
| |
| /* return the environment string for the variable. The returned memory |
| * must not be freed. */ |
| G_CONST_RETURN gchar* g_getenv (const gchar *variable); |
| |
| |
| /* we try to provide a usefull equivalent for ATEXIT if it is |
| * not defined, but use is actually abandoned. people should |
| * use g_atexit() instead. |
| */ |
| typedef void (*GVoidFunc) (void); |
| #ifndef ATEXIT |
| # define ATEXIT(proc) g_ATEXIT(proc) |
| #else |
| # define G_NATIVE_ATEXIT |
| #endif /* ATEXIT */ |
| /* we use a GLib function as a replacement for ATEXIT, so |
| * the programmer is not required to check the return value |
| * (if there is any in the implementation) and doesn't encounter |
| * missing include files. |
| */ |
| void g_atexit (GVoidFunc func); |
| |
| /* Look for an executable in PATH, following execvp() rules */ |
| gchar* g_find_program_in_path (const gchar *program); |
| |
| /* Bit tests |
| */ |
| G_INLINE_FUNC gint g_bit_nth_lsf (gulong mask, |
| gint nth_bit); |
| G_INLINE_FUNC gint g_bit_nth_msf (gulong mask, |
| gint nth_bit); |
| G_INLINE_FUNC guint g_bit_storage (gulong number); |
| |
| /* Trash Stacks |
| * elements need to be >= sizeof (gpointer) |
| */ |
| typedef struct _GTrashStack GTrashStack; |
| struct _GTrashStack |
| { |
| GTrashStack *next; |
| }; |
| |
| G_INLINE_FUNC void g_trash_stack_push (GTrashStack **stack_p, |
| gpointer data_p); |
| G_INLINE_FUNC gpointer g_trash_stack_pop (GTrashStack **stack_p); |
| G_INLINE_FUNC gpointer g_trash_stack_peek (GTrashStack **stack_p); |
| G_INLINE_FUNC guint g_trash_stack_height (GTrashStack **stack_p); |
| |
| /* inline function implementations |
| */ |
| #if defined (G_CAN_INLINE) || defined (__G_UTILS_C__) |
| G_INLINE_FUNC gint |
| g_bit_nth_lsf (gulong mask, |
| gint nth_bit) |
| { |
| do |
| { |
| nth_bit++; |
| if (mask & (1 << (gulong) nth_bit)) |
| return nth_bit; |
| } |
| while (nth_bit < 31); |
| return -1; |
| } |
| G_INLINE_FUNC gint |
| g_bit_nth_msf (gulong mask, |
| gint nth_bit) |
| { |
| if (nth_bit < 0) |
| nth_bit = GLIB_SIZEOF_LONG * 8; |
| do |
| { |
| nth_bit--; |
| if (mask & (1 << (gulong) nth_bit)) |
| return nth_bit; |
| } |
| while (nth_bit > 0); |
| return -1; |
| } |
| G_INLINE_FUNC guint |
| g_bit_storage (gulong number) |
| { |
| register guint n_bits = 0; |
| |
| do |
| { |
| n_bits++; |
| number >>= 1; |
| } |
| while (number); |
| return n_bits; |
| } |
| G_INLINE_FUNC void |
| g_trash_stack_push (GTrashStack **stack_p, |
| gpointer data_p) |
| { |
| GTrashStack *data = (GTrashStack *) data_p; |
| |
| data->next = *stack_p; |
| *stack_p = data; |
| } |
| G_INLINE_FUNC gpointer |
| g_trash_stack_pop (GTrashStack **stack_p) |
| { |
| GTrashStack *data; |
| |
| data = *stack_p; |
| if (data) |
| { |
| *stack_p = data->next; |
| /* NULLify private pointer here, most platforms store NULL as |
| * subsequent 0 bytes |
| */ |
| data->next = NULL; |
| } |
| |
| return data; |
| } |
| G_INLINE_FUNC gpointer |
| g_trash_stack_peek (GTrashStack **stack_p) |
| { |
| GTrashStack *data; |
| |
| data = *stack_p; |
| |
| return data; |
| } |
| G_INLINE_FUNC guint |
| g_trash_stack_height (GTrashStack **stack_p) |
| { |
| GTrashStack *data; |
| guint i = 0; |
| |
| for (data = *stack_p; data; data = data->next) |
| i++; |
| |
| return i; |
| } |
| #endif /* G_CAN_INLINE || __G_UTILS_C__ */ |
| |
| /* Glib version. |
| * we prefix variable declarations so they can |
| * properly get exported in windows dlls. |
| */ |
| GLIB_VAR const guint glib_major_version; |
| GLIB_VAR const guint glib_minor_version; |
| GLIB_VAR const guint glib_micro_version; |
| GLIB_VAR const guint glib_interface_age; |
| GLIB_VAR const guint glib_binary_age; |
| |
| #define GLIB_CHECK_VERSION(major,minor,micro) \ |
| (GLIB_MAJOR_VERSION > (major) || \ |
| (GLIB_MAJOR_VERSION == (major) && GLIB_MINOR_VERSION > (minor)) || \ |
| (GLIB_MAJOR_VERSION == (major) && GLIB_MINOR_VERSION == (minor) && \ |
| GLIB_MICRO_VERSION >= (micro))) |
| |
| G_END_DECLS |
| |
| /* |
| * On Windows, this macro defines a DllMain function that stores the |
| * actual DLL name that the code being compiled will be included in. |
| * STATIC should be empty or 'static'. DLL_NAME is the name of the |
| * (pointer to the) char array where the DLL name will be stored. If |
| * this is used, you must also include <windows.h>. If you need a more complex |
| * DLL entry point function, you cannot use this. |
| * |
| * On non-Windows platforms, expands to nothing. |
| */ |
| |
| #ifndef G_PLATFORM_WIN32 |
| # define G_WIN32_DLLMAIN_FOR_DLL_NAME(static, dll_name) |
| #else |
| # define G_WIN32_DLLMAIN_FOR_DLL_NAME(static, dll_name) \ |
| static char *dll_name; \ |
| \ |
| BOOL WINAPI \ |
| DllMain (HINSTANCE hinstDLL, \ |
| DWORD fdwReason, \ |
| LPVOID lpvReserved) \ |
| { \ |
| char bfr[1000]; \ |
| switch (fdwReason) \ |
| { \ |
| case DLL_PROCESS_ATTACH: \ |
| GetModuleFileName ((HMODULE) hinstDLL, bfr, sizeof (bfr)); \ |
| dll_name = g_path_get_basename (bfr); \ |
| break; \ |
| } \ |
| \ |
| return TRUE; \ |
| } |
| #endif /* G_PLATFORM_WIN32 */ |
| |
| #endif /* __G_UTILS_H__ */ |