glib/gmodule/gmodule.c

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/* GMODULE - GLIB wrapper code for dynamic module loading
* Copyright (C) 1998 Tim Janik
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*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
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* 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.
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*
* You should have received a copy of the GNU Lesser General Public
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* 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/.
*/
/*
* MT safe
*/
#include "config.h"
#include "glib.h"
#include "gmodule.h"
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef G_OS_WIN32
#include <io.h> /* For open() and close() prototypes. */
#endif
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#include "gmoduleconf.h"
#include "gstdio.h"
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/**
* SECTION:modules
* @title: Dynamic Loading of Modules
* @short_description: portable method for dynamically loading 'plug-ins'
*
* These functions provide a portable way to dynamically load object files
* (commonly known as 'plug-ins'). The current implementation supports all
* systems that provide an implementation of dlopen() (e.g. Linux/Sun), as
* well as HP-UX via its shl_load() mechanism, and Windows platforms via DLLs.
*
* A program which wants to use these functions must be linked to the
* libraries output by the command
* <command>pkg-config --libs gmodule-2.0</command>.
*
* To use them you must first determine whether dynamic loading
* is supported on the platform by calling g_module_supported().
* If it is, you can open a module with g_module_open(),
* find the module's symbols (e.g. function names) with g_module_symbol(),
* and later close the module with g_module_close().
* g_module_name() will return the file name of a currently opened module.
*
* If any of the above functions fail, the error status can be found with
* g_module_error().
*
* The #GModule implementation features reference counting for opened modules,
* and supports hook functions within a module which are called when the
* module is loaded and unloaded (see #GModuleCheckInit and #GModuleUnload).
*
* If your module introduces static data to common subsystems in the running
* program, e.g. through calling
* <literal>g_quark_from_static_string ("my-module-stuff")</literal>,
* it must ensure that it is never unloaded, by calling g_module_make_resident().
*
* <example>
* <title>Calling a function defined in a <structname>GModule</structname></title>
* <programlisting>
* /&ast; the function signature for 'say_hello' &ast;/
* typedef void (* SayHelloFunc) (const char *message);
*
* gboolean
* just_say_hello (const char *filename, GError **error)
* {
* SayHelloFunc say_hello;
* GModule *module;
*
* module = g_module_open (filename, G_MODULE_BIND_LAZY);
* if (!module)
* {
* g_set_error (error, FOO_ERROR, FOO_ERROR_BLAH,
* "&percnt;s", g_module_error ());
* return FALSE;
* }
*
* if (!g_module_symbol (module, "say_hello", (gpointer *)&amp;say_hello))
* {
* g_set_error (error, SAY_ERROR, SAY_ERROR_OPEN,
* "&percnt;s: &percnt;s", filename, g_module_error ());
* if (!g_module_close (module))
* g_warning ("&percnt;s: &percnt;s", filename, g_module_error ());
* return FALSE;
* }
*
* if (say_hello == NULL)
* {
* g_set_error (error, SAY_ERROR, SAY_ERROR_OPEN,
* "symbol say_hello is NULL");
* if (!g_module_close (module))
* g_warning ("&percnt;s: &percnt;s", filename, g_module_error ());
* return FALSE;
* }
*
* /&ast; call our function in the module &ast;/
* say_hello ("Hello world!");
*
* if (!g_module_close (module))
* g_warning ("&percnt;s: &percnt;s", filename, g_module_error ());
* return TRUE;
* }
* </programlisting>
* </example>
*/
/**
* GModule:
* The #GModule struct is an opaque data structure to represent a
* <link linkend="glib-Dynamic-Loading-of-Modules">Dynamically-Loaded
* Module</link>. It should only be accessed via the following functions.
*/
/**
* GModuleCheckInit:
* @module: the #GModule corresponding to the module which has just been loaded
*
* Specifies the type of the module initialization function.
* <indexterm zone="g-module-check-init"><primary>g_module_check_init</primary></indexterm>
* If a module contains a function named g_module_check_init() it is called
* automatically when the module is loaded. It is passed the #GModule structure
* and should return %NULL on success or a string describing the initialization
* error.
*
* Returns: %NULL on success, or a string describing the initialization error
*/
/**
* GModuleUnload:
* @module: the #GModule about to be unloaded
*
* <indexterm zone="g-module-unload"><primary>g_module_unload</primary></indexterm>
* Specifies the type of the module function called when it is unloaded.
* If a module contains a function named g_module_unload() it is called
* automatically when the module is unloaded.
* It is passed the #GModule structure.
*/
/**
* G_MODULE_SUFFIX:
*
* Expands to the proper shared library suffix for the current platform
* without the leading dot. For the most Unices and Linux this is "so",
* for some HP-UX versions this is "sl" and for Windows this is "dll".
*/
/**
* G_MODULE_EXPORT:
*
* Used to declare functions exported by modules. This is a no-op on Linux
* and Unices, but when compiling for Windows, it marks a symbol to be
* exported from the library or executable being built.
*/
/**
* G_MODULE_IMPORT:
*
* Used to declare functions imported from modules.
*/
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/* We maintain a list of modules, so we can reference count them.
* That's needed because some platforms don't support references counts on
* modules e.g. the shl_* implementation of HP-UX
* (http://www.stat.umn.edu/~luke/xls/projects/dlbasics/dlbasics.html).
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* Also, the module for the program itself is kept seperatedly for
* faster access and because it has special semantics.
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*/
/* --- structures --- */
struct _GModule
{
gchar *file_name;
#if defined (G_OS_WIN32) && !defined(_WIN64)
gchar *cp_file_name;
#endif
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gpointer handle;
guint ref_count : 31;
guint is_resident : 1;
GModuleUnload unload;
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GModule *next;
};
/* --- prototypes --- */
static gpointer _g_module_open (const gchar *file_name,
gboolean bind_lazy,
gboolean bind_local);
static void _g_module_close (gpointer handle,
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gboolean is_unref);
static gpointer _g_module_self (void);
static gpointer _g_module_symbol (gpointer handle,
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const gchar *symbol_name);
removed dummy structure definitions for struct _GCache, _GTree, _GTimer, Tue Oct 27 03:00:50 1998 Tim Janik <timj@gtk.org> * glib.h: removed dummy structure definitions for struct _GCache, _GTree, _GTimer, _GMemChunk, _GListAllocator and _GStringChunk. * gutils.c: implement glib's inline functions _after_ all include statements have been processed. removed Tor's MAXPATHLEN check since there already was one supplied further down in this file. (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. why in hell is this stuff required? (g_get_any_init): for windows, if the user name is supplied, use it as realname also. in general, if there is no homedir specified, use the tmpdir that we already figured. * gtimer.c (g_timer_elapsed): changed a g_assert() statement to g_return_if_fail(). * applied glib-tml-981020-0.patch for WIN32 portability, added some comments and g_return_if_fail() statements, minor indentation fixes. ChangeLog entry from Tor Lillqvist is appended. * glib.h (struct dirent): use lower case structure members. * glib.h: * makefile.lcc: * makefile.msc: s/COMPILING_GLIB/GLIB_COMPILATION/ 1998-10-20: Tor Lillqvist <tml@iki.fi> * README.win32 glib.def gmodule.def * glibconfig.h.win32 gmodule/gmoduleconf.h.win32: New files for the Windows port. The .def files list exported symbols for the Microsoft linker and compatibles. * configure.in: Added checks for some platform-dependent headers: pwd.h sys/param.h sys/select.h sys/time.h sys/times.h unistd.h, and the function lstat. * gerror.c: Conditionalized inclusion of system-dependent headers. Changes for Windows: no gdb to do a stack trace. Just call abort(). * glib.h: Changes for Windows: Added macros G_DIR_SEPARATOR, G_DIR_SEPARATOR_S for platform-dependent file name syntax elements. Added macros G_SEARCHPATH_SEPARATOR, G_SEARCHPATH_SEPARATOR_S for platform-dependent search path syntax conventions. Added pragmas for Microsoft C to make it more pedantic. Marked GLib's global variables for export from DLL. Added the function g_strescape that escapes backslashes. Added functions g_path_is_absolute and g_path_skip_root to handle platform-dependent file name syntax. Added the function g_getenv that expands environment variables that contain references to other environment variables, as is typical on Windows NT. Added the GIOChannel structure which is used to encapsulate the IPC mechanism used by the GIMP's plug-ins, and possibly other things later. On Unix a GIOChannel encapsulates just a file descriptor. On Windows it contains a file handle from _pipe() and a few other things related to the implementation of gdk_input_add and GIMP plug-in communication. Subject to change. Removed duplicate declarations of the version variables. For the Microsoft compiler, declare own implementation of ftruncate and the <dirent.h> functions. * gmem.c: Define a symbolic name for the profiling table size. * gmessages.c: Conditionalized inclusion of unistd.h. On Windows, output using stdio to stdout. * gscanner.c: Conditionalized inclusion of unistd.h. Added changes for Microsoft C. Added CR to the skipped character set. Added small workaround for MSC compiler bug in g_scanner_cur_value. * gstrfuncs.c: Added the function g_strescape, which escapes the backslash character. Needed especially when printing Windows filenames. * gtimer.c: Conditionalized inclusion of unistd.h and sys/time.h. Added implementations for Windows. * gutils.c: Conditionalized inclusion of platform-dependent headers. Use the platform-independent file name syntax macros. Conditionalize code on platform-dependent features. Added the functions g_path_is_absolute g_path_skip_root and g_getenv. Added the GIOChannel-related functions. Added compiler-dependent Unix compatibility functions for Windows. * makefile.lcc makefile.msc: New files. Compiler-specific makefiles for LCC-Win32 and Microsoft C. Only Microsoft C is actually supported currently. * testglib.c: Added pathname check cases for Windows. Added workaround for bug in the Microsoft runtime library. Improved some tests a bit. Tue Oct 27 04:00:11 1998 Tim Janik <timj@gtk.org> * testgmodule.c (main): changed the #ifdef WIN32 test to NATIVE_WIN32, this needs to be more constistent throughout the code, do we go for NATIVE_WIN32 or WIN32? * gmodule.c (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. * libgplugin_a.c (LibMain): * libgplugin_b.c (LibMain): likewise. not sure i like this special requirement for lcc in here. * gmodule-dl.c (_g_module_build_path): feature empty "" directories and prepend the module name with "lib". * gmodule-dld.c (_g_module_build_path): * gmodule-win32.c (_g_module_build_path): feature empty "" directories. * we need some more magic in the _g_module_build_path variants so we don't append/prepend lib and .so, .sl or .dll for those names that already contain it. * applied patch from Tor Lillqvist for g_module_build_path() and windows support. 1998-10-20: Tor Lillqvist <tml@iki.fi> * gmodule/gmodule-win32.c: New file. * gmodule/gmodule.c gmodule/gmodule.h: Added the funcion g_module_build_path that builds the path to a module file, decorating the name according to the system's conventions. Added the Windows implementation. * gmodule/libgplugin_a.c gmodule/libgplugin_b.c: Added LibMain for LCC-Win32. * gmodule/testgmodule.c: Handle Windows dll names.
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static gchar* _g_module_build_path (const gchar *directory,
const gchar *module_name);
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static inline void g_module_set_error (const gchar *error);
static inline GModule* g_module_find_by_handle (gpointer handle);
static inline GModule* g_module_find_by_name (const gchar *name);
/* --- variables --- */
static GModule *modules = NULL;
static GModule *main_module = NULL;
static GPrivate module_error_private = G_PRIVATE_INIT (g_free);
static gboolean module_debug_initialized = FALSE;
static guint module_debug_flags = 0;
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/* --- inline functions --- */
static inline GModule*
g_module_find_by_handle (gpointer handle)
{
GModule *module;
GModule *retval = NULL;
if (main_module && main_module->handle == handle)
retval = main_module;
else
for (module = modules; module; module = module->next)
if (handle == module->handle)
{
retval = module;
break;
}
return retval;
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}
static inline GModule*
g_module_find_by_name (const gchar *name)
{
GModule *module;
GModule *retval = NULL;
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for (module = modules; module; module = module->next)
if (strcmp (name, module->file_name) == 0)
{
retval = module;
break;
}
return retval;
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}
static inline void
g_module_set_error_unduped (gchar *error)
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{
g_private_replace (&module_error_private, error);
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errno = 0;
}
static inline void
g_module_set_error (const gchar *error)
{
g_module_set_error_unduped (g_strdup (error));
}
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/* --- include platform specifc code --- */
#define SUPPORT_OR_RETURN(rv) { g_module_set_error (NULL); }
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#if (G_MODULE_IMPL == G_MODULE_IMPL_DL)
#include "gmodule-dl.c"
#elif (G_MODULE_IMPL == G_MODULE_IMPL_DLD)
#include "gmodule-dld.c"
removed dummy structure definitions for struct _GCache, _GTree, _GTimer, Tue Oct 27 03:00:50 1998 Tim Janik <timj@gtk.org> * glib.h: removed dummy structure definitions for struct _GCache, _GTree, _GTimer, _GMemChunk, _GListAllocator and _GStringChunk. * gutils.c: implement glib's inline functions _after_ all include statements have been processed. removed Tor's MAXPATHLEN check since there already was one supplied further down in this file. (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. why in hell is this stuff required? (g_get_any_init): for windows, if the user name is supplied, use it as realname also. in general, if there is no homedir specified, use the tmpdir that we already figured. * gtimer.c (g_timer_elapsed): changed a g_assert() statement to g_return_if_fail(). * applied glib-tml-981020-0.patch for WIN32 portability, added some comments and g_return_if_fail() statements, minor indentation fixes. ChangeLog entry from Tor Lillqvist is appended. * glib.h (struct dirent): use lower case structure members. * glib.h: * makefile.lcc: * makefile.msc: s/COMPILING_GLIB/GLIB_COMPILATION/ 1998-10-20: Tor Lillqvist <tml@iki.fi> * README.win32 glib.def gmodule.def * glibconfig.h.win32 gmodule/gmoduleconf.h.win32: New files for the Windows port. The .def files list exported symbols for the Microsoft linker and compatibles. * configure.in: Added checks for some platform-dependent headers: pwd.h sys/param.h sys/select.h sys/time.h sys/times.h unistd.h, and the function lstat. * gerror.c: Conditionalized inclusion of system-dependent headers. Changes for Windows: no gdb to do a stack trace. Just call abort(). * glib.h: Changes for Windows: Added macros G_DIR_SEPARATOR, G_DIR_SEPARATOR_S for platform-dependent file name syntax elements. Added macros G_SEARCHPATH_SEPARATOR, G_SEARCHPATH_SEPARATOR_S for platform-dependent search path syntax conventions. Added pragmas for Microsoft C to make it more pedantic. Marked GLib's global variables for export from DLL. Added the function g_strescape that escapes backslashes. Added functions g_path_is_absolute and g_path_skip_root to handle platform-dependent file name syntax. Added the function g_getenv that expands environment variables that contain references to other environment variables, as is typical on Windows NT. Added the GIOChannel structure which is used to encapsulate the IPC mechanism used by the GIMP's plug-ins, and possibly other things later. On Unix a GIOChannel encapsulates just a file descriptor. On Windows it contains a file handle from _pipe() and a few other things related to the implementation of gdk_input_add and GIMP plug-in communication. Subject to change. Removed duplicate declarations of the version variables. For the Microsoft compiler, declare own implementation of ftruncate and the <dirent.h> functions. * gmem.c: Define a symbolic name for the profiling table size. * gmessages.c: Conditionalized inclusion of unistd.h. On Windows, output using stdio to stdout. * gscanner.c: Conditionalized inclusion of unistd.h. Added changes for Microsoft C. Added CR to the skipped character set. Added small workaround for MSC compiler bug in g_scanner_cur_value. * gstrfuncs.c: Added the function g_strescape, which escapes the backslash character. Needed especially when printing Windows filenames. * gtimer.c: Conditionalized inclusion of unistd.h and sys/time.h. Added implementations for Windows. * gutils.c: Conditionalized inclusion of platform-dependent headers. Use the platform-independent file name syntax macros. Conditionalize code on platform-dependent features. Added the functions g_path_is_absolute g_path_skip_root and g_getenv. Added the GIOChannel-related functions. Added compiler-dependent Unix compatibility functions for Windows. * makefile.lcc makefile.msc: New files. Compiler-specific makefiles for LCC-Win32 and Microsoft C. Only Microsoft C is actually supported currently. * testglib.c: Added pathname check cases for Windows. Added workaround for bug in the Microsoft runtime library. Improved some tests a bit. Tue Oct 27 04:00:11 1998 Tim Janik <timj@gtk.org> * testgmodule.c (main): changed the #ifdef WIN32 test to NATIVE_WIN32, this needs to be more constistent throughout the code, do we go for NATIVE_WIN32 or WIN32? * gmodule.c (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. * libgplugin_a.c (LibMain): * libgplugin_b.c (LibMain): likewise. not sure i like this special requirement for lcc in here. * gmodule-dl.c (_g_module_build_path): feature empty "" directories and prepend the module name with "lib". * gmodule-dld.c (_g_module_build_path): * gmodule-win32.c (_g_module_build_path): feature empty "" directories. * we need some more magic in the _g_module_build_path variants so we don't append/prepend lib and .so, .sl or .dll for those names that already contain it. * applied patch from Tor Lillqvist for g_module_build_path() and windows support. 1998-10-20: Tor Lillqvist <tml@iki.fi> * gmodule/gmodule-win32.c: New file. * gmodule/gmodule.c gmodule/gmodule.h: Added the funcion g_module_build_path that builds the path to a module file, decorating the name according to the system's conventions. Added the Windows implementation. * gmodule/libgplugin_a.c gmodule/libgplugin_b.c: Added LibMain for LCC-Win32. * gmodule/testgmodule.c: Handle Windows dll names.
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#elif (G_MODULE_IMPL == G_MODULE_IMPL_WIN32)
#include "gmodule-win32.c"
#elif (G_MODULE_IMPL == G_MODULE_IMPL_DYLD)
#include "gmodule-dyld.c"
#elif (G_MODULE_IMPL == G_MODULE_IMPL_AR)
#include "gmodule-ar.c"
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#else
#undef SUPPORT_OR_RETURN
#define SUPPORT_OR_RETURN(rv) { g_module_set_error ("dynamic modules are " \
"not supported by this system"); return rv; }
static gpointer
_g_module_open (const gchar *file_name,
gboolean bind_lazy,
gboolean bind_local)
{
return NULL;
}
static void
_g_module_close (gpointer handle,
gboolean is_unref)
{
}
static gpointer
_g_module_self (void)
{
return NULL;
}
static gpointer
_g_module_symbol (gpointer handle,
const gchar *symbol_name)
{
return NULL;
}
static gchar*
_g_module_build_path (const gchar *directory,
const gchar *module_name)
{
return NULL;
}
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#endif /* no implementation */
/* --- functions --- */
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/**
* g_module_supported:
*
* Checks if modules are supported on the current platform.
*
* Returns: %TRUE if modules are supported
*/
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gboolean
g_module_supported (void)
{
SUPPORT_OR_RETURN (FALSE);
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return TRUE;
}
static gchar*
parse_libtool_archive (const gchar* libtool_name)
{
const guint TOKEN_DLNAME = G_TOKEN_LAST + 1;
const guint TOKEN_INSTALLED = G_TOKEN_LAST + 2;
const guint TOKEN_LIBDIR = G_TOKEN_LAST + 3;
gchar *lt_dlname = NULL;
gboolean lt_installed = TRUE;
gchar *lt_libdir = NULL;
gchar *name;
GTokenType token;
GScanner *scanner;
int fd = g_open (libtool_name, O_RDONLY, 0);
if (fd < 0)
{
gchar *display_libtool_name = g_filename_display_name (libtool_name);
g_module_set_error_unduped (g_strdup_printf ("failed to open libtool archive \"%s\"", display_libtool_name));
g_free (display_libtool_name);
return NULL;
}
/* search libtool's dlname specification */
scanner = g_scanner_new (NULL);
g_scanner_input_file (scanner, fd);
scanner->config->symbol_2_token = TRUE;
g_scanner_scope_add_symbol (scanner, 0, "dlname",
GUINT_TO_POINTER (TOKEN_DLNAME));
g_scanner_scope_add_symbol (scanner, 0, "installed",
GUINT_TO_POINTER (TOKEN_INSTALLED));
g_scanner_scope_add_symbol (scanner, 0, "libdir",
GUINT_TO_POINTER (TOKEN_LIBDIR));
while (!g_scanner_eof (scanner))
{
token = g_scanner_get_next_token (scanner);
if (token == TOKEN_DLNAME || token == TOKEN_INSTALLED ||
token == TOKEN_LIBDIR)
{
if (g_scanner_get_next_token (scanner) != '=' ||
g_scanner_get_next_token (scanner) !=
(token == TOKEN_INSTALLED ?
G_TOKEN_IDENTIFIER : G_TOKEN_STRING))
{
gchar *display_libtool_name = g_filename_display_name (libtool_name);
g_module_set_error_unduped (g_strdup_printf ("unable to parse libtool archive \"%s\"", display_libtool_name));
g_free (display_libtool_name);
g_free (lt_dlname);
g_free (lt_libdir);
g_scanner_destroy (scanner);
close (fd);
return NULL;
}
else
{
if (token == TOKEN_DLNAME)
{
g_free (lt_dlname);
lt_dlname = g_strdup (scanner->value.v_string);
}
else if (token == TOKEN_INSTALLED)
lt_installed =
strcmp (scanner->value.v_identifier, "yes") == 0;
else /* token == TOKEN_LIBDIR */
{
g_free (lt_libdir);
lt_libdir = g_strdup (scanner->value.v_string);
}
}
}
}
if (!lt_installed)
{
gchar *dir = g_path_get_dirname (libtool_name);
g_free (lt_libdir);
lt_libdir = g_strconcat (dir, G_DIR_SEPARATOR_S ".libs", NULL);
g_free (dir);
}
name = g_strconcat (lt_libdir, G_DIR_SEPARATOR_S, lt_dlname, NULL);
g_free (lt_dlname);
g_free (lt_libdir);
g_scanner_destroy (scanner);
close (fd);
return name;
}
static inline gboolean
str_check_suffix (const gchar* string,
const gchar* suffix)
{
Changes for 64-bit cleanliness, loosely based on patch from Mark Murnane. Wed Jun 20 12:00:54 2001 Owen Taylor <otaylor@redhat.com> Changes for 64-bit cleanliness, loosely based on patch from Mark Murnane. * gconvert.c (g_convert/g_convert_with_fallback): Remove workarounds for since-fixed GNU libc bugs. Minor doc fix. * gconvert.[ch]: Change gint to gsize/gssize as appropriate. * gconvert.c (g_locale/filename_to/from_utf8): Fix incorrect computation of bytes_read / bytes_written. * gfileutils.[ch] (g_file_get_contents): Make length out parameter 'gsize *len'. * ghook.c (g_hook_compare_ids): Don't compare a and b as 'a - b'. * gmacros.h (GSIZE_TO_POINTER): Add GPOINTER_TO_SIZE, GSIZE_TO_POINTER. * gmain.c (g_timeout_prepare): Rewrite to avoid overflows. (Fixes bug when system clock skews backwards more than 24 days.) * gmarkup.[ch]: Make lengths passed to callbacks gsize, length for g_markup_parse-context_parse(), g_markup_escape_text() gssize. * gmessages.[ch] (g_printf_string_upper_bound): Change return value to gsize. * gmessages.c (printf_string_upper_bound): Remove a ridiculous use of 'inline' on a 300 line function. * gstring.[ch]: Represent size of string as a gsize, not gint. Make parameters to functions take gsize, or gssize where -1 is allowed. * gstring.c (g_string_erase): Make g_string_erase (string, pos, -1) a synonym for g_string_truncate for consistency with other G* APIs. * gstrfuncs.[ch]: Make all functions taking a string length, take a gsize, or gssize if -1 is allowed. (g_strstr_len, g_strrstr_len). Also fix some boundary conditions in g_str[r]str[_len]. * gutf8.c tests/unicode-encoding.c: Make parameters that are byte lengths gsize, gssize as appropriate. Make character offsets, other counts, glong. * gasyncqueue.c gcompletion.c timeloop.c timeloop-basic.c gutils.c gspawn.c. Small 64 bit cleanliness fixups. * glist.c (g_list_sort2, g_list_sort_real): Fix functions that should have been static. * gdate.c (g_date_fill_parse_tokens): Fix extra declaration that was shadowing another. * tests/module-test.c: Include string.h Mon Jun 18 15:43:29 2001 Owen Taylor <otaylor@redhat.com> * gutf8.c (g_get_charset): Make argument G_CONST_RETURN char **.
2001-06-23 15:55:09 +02:00
gsize string_len = strlen (string);
gsize suffix_len = strlen (suffix);
return string_len >= suffix_len &&
strcmp (string + string_len - suffix_len, suffix) == 0;
}
enum
{
G_MODULE_DEBUG_RESIDENT_MODULES = 1 << 0,
G_MODULE_DEBUG_BIND_NOW_MODULES = 1 << 1
};
static void
_g_module_debug_init (void)
{
const GDebugKey keys[] = {
{ "resident-modules", G_MODULE_DEBUG_RESIDENT_MODULES },
{ "bind-now-modules", G_MODULE_DEBUG_BIND_NOW_MODULES }
};
const gchar *env;
env = g_getenv ("G_DEBUG");
module_debug_flags =
!env ? 0 : g_parse_debug_string (env, keys, G_N_ELEMENTS (keys));
module_debug_initialized = TRUE;
}
static GRecMutex g_module_global_lock;
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GModule*
g_module_open (const gchar *file_name,
GModuleFlags flags)
{
GModule *module;
gpointer handle = NULL;
gchar *name = NULL;
SUPPORT_OR_RETURN (NULL);
g_rec_mutex_lock (&g_module_global_lock);
if (G_UNLIKELY (!module_debug_initialized))
_g_module_debug_init ();
if (module_debug_flags & G_MODULE_DEBUG_BIND_NOW_MODULES)
flags &= ~G_MODULE_BIND_LAZY;
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if (!file_name)
{
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if (!main_module)
{
handle = _g_module_self ();
if (handle)
{
main_module = g_new (GModule, 1);
main_module->file_name = NULL;
#if defined (G_OS_WIN32) && !defined(_WIN64)
main_module->cp_file_name = NULL;
#endif
main_module->handle = handle;
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main_module->ref_count = 1;
main_module->is_resident = TRUE;
main_module->unload = NULL;
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main_module->next = NULL;
}
}
else
main_module->ref_count++;
g_rec_mutex_unlock (&g_module_global_lock);
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return main_module;
}
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/* we first search the module list by name */
module = g_module_find_by_name (file_name);
if (module)
{
module->ref_count++;
g_rec_mutex_unlock (&g_module_global_lock);
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return module;
}
/* check whether we have a readable file right away */
if (g_file_test (file_name, G_FILE_TEST_IS_REGULAR))
name = g_strdup (file_name);
/* try completing file name with standard library suffix */
if (!name)
{
name = g_strconcat (file_name, "." G_MODULE_SUFFIX, NULL);
if (!g_file_test (name, G_FILE_TEST_IS_REGULAR))
{
g_free (name);
name = NULL;
}
}
/* try completing by appending libtool suffix */
if (!name)
{
name = g_strconcat (file_name, ".la", NULL);
if (!g_file_test (name, G_FILE_TEST_IS_REGULAR))
{
g_free (name);
name = NULL;
}
}
/* we can't access() the file, lets hope the platform backends finds
* it via library paths
*/
if (!name)
{
gchar *dot = strrchr (file_name, '.');
gchar *slash = strrchr (file_name, G_DIR_SEPARATOR);
/* make sure the name has a suffix */
if (!dot || dot < slash)
name = g_strconcat (file_name, "." G_MODULE_SUFFIX, NULL);
else
name = g_strdup (file_name);
}
/* ok, try loading the module */
if (name)
{
/* if it's a libtool archive, figure library file to load */
if (str_check_suffix (name, ".la")) /* libtool archive? */
{
gchar *real_name = parse_libtool_archive (name);
/* real_name might be NULL, but then module error is already set */
if (real_name)
{
g_free (name);
name = real_name;
}
}
if (name)
handle = _g_module_open (name, (flags & G_MODULE_BIND_LAZY) != 0,
(flags & G_MODULE_BIND_LOCAL) != 0);
}
else
{
gchar *display_file_name = g_filename_display_name (file_name);
g_module_set_error_unduped (g_strdup_printf ("unable to access file \"%s\"", display_file_name));
g_free (display_file_name);
}
g_free (name);
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if (handle)
{
gchar *saved_error;
GModuleCheckInit check_init;
const gchar *check_failed = NULL;
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/* search the module list by handle, since file names are not unique */
module = g_module_find_by_handle (handle);
if (module)
{
_g_module_close (module->handle, TRUE);
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module->ref_count++;
g_module_set_error (NULL);
g_rec_mutex_unlock (&g_module_global_lock);
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return module;
}
saved_error = g_strdup (g_module_error ());
g_module_set_error (NULL);
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module = g_new (GModule, 1);
module->file_name = g_strdup (file_name);
#if defined (G_OS_WIN32) && !defined(_WIN64)
module->cp_file_name = g_locale_from_utf8 (file_name, -1,
NULL, NULL, NULL);
#endif
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module->handle = handle;
module->ref_count = 1;
module->is_resident = FALSE;
module->unload = NULL;
module->next = modules;
modules = module;
/* check initialization */
if (g_module_symbol (module, "g_module_check_init", (gpointer) &check_init) && check_init != NULL)
check_failed = check_init (module);
/* we don't call unload() if the initialization check failed. */
if (!check_failed)
g_module_symbol (module, "g_module_unload", (gpointer) &module->unload);
if (check_failed)
{
gchar *error;
2011-06-15 02:36:37 +02:00
error = g_strconcat ("GModule (", file_name, ") ",
"initialization check failed: ",
check_failed, NULL);
g_module_close (module);
module = NULL;
g_module_set_error (error);
g_free (error);
}
else
g_module_set_error (saved_error);
g_free (saved_error);
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}
if (module != NULL &&
(module_debug_flags & G_MODULE_DEBUG_RESIDENT_MODULES))
g_module_make_resident (module);
g_rec_mutex_unlock (&g_module_global_lock);
return module;
1998-08-09 10:32:18 +02:00
}
#if defined (G_OS_WIN32) && !defined(_WIN64)
#undef g_module_open
2011-11-15 03:06:30 +01:00
/**
* GModuleFlags:
* @G_MODULE_BIND_LAZY: specifies that symbols are only resolved when
* needed. The default action is to bind all symbols when the module
* is loaded.
* @G_MODULE_BIND_LOCAL: specifies that symbols in the module should
* not be added to the global name space. The default action on most
* platforms is to place symbols in the module in the global name space,
* which may cause conflicts with existing symbols.
* @G_MODULE_BIND_MASK: mask for all flags.
*
* Flags passed to g_module_open().
* Note that these flags are not supported on all platforms.
*/
/**
* g_module_open:
* @file_name: the name of the file containing the module, or %NULL
* to obtain a #GModule representing the main program itself
* @flags: the flags used for opening the module. This can be the
* logical OR of any of the #GModuleFlags
*
* Opens a module. If the module has already been opened,
* its reference count is incremented.
*
* First of all g_module_open() tries to open @file_name as a module.
* If that fails and @file_name has the ".la"-suffix (and is a libtool
* archive) it tries to open the corresponding module. If that fails
* and it doesn't have the proper module suffix for the platform
* (#G_MODULE_SUFFIX), this suffix will be appended and the corresponding
* module will be opended. If that fails and @file_name doesn't have the
* ".la"-suffix, this suffix is appended and g_module_open() tries to open
* the corresponding module. If eventually that fails as well, %NULL is
* returned.
*
* Returns: a #GModule on success, or %NULL on failure
*/
GModule *
g_module_open (const gchar *file_name,
GModuleFlags flags)
{
gchar *utf8_file_name = g_locale_to_utf8 (file_name, -1, NULL, NULL, NULL);
GModule *retval = g_module_open_utf8 (utf8_file_name, flags);
g_free (utf8_file_name);
return retval;
}
#endif
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/**
* g_module_close:
* @module: a #GModule to close
*
* Closes a module.
*
* Returns: %TRUE on success
*/
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gboolean
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g_module_close (GModule *module)
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{
SUPPORT_OR_RETURN (FALSE);
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g_return_val_if_fail (module != NULL, FALSE);
g_return_val_if_fail (module->ref_count > 0, FALSE);
g_rec_mutex_lock (&g_module_global_lock);
module->ref_count--;
if (!module->ref_count && !module->is_resident && module->unload)
{
GModuleUnload unload;
unload = module->unload;
module->unload = NULL;
unload (module);
}
if (!module->ref_count && !module->is_resident)
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{
GModule *last;
GModule *node;
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last = NULL;
1998-08-09 10:32:18 +02:00
node = modules;
while (node)
{
if (node == module)
{
if (last)
last->next = node->next;
else
modules = node->next;
break;
}
last = node;
node = last->next;
}
module->next = NULL;
_g_module_close (module->handle, FALSE);
g_free (module->file_name);
#if defined (G_OS_WIN32) && !defined(_WIN64)
g_free (module->cp_file_name);
#endif
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g_free (module);
}
g_rec_mutex_unlock (&g_module_global_lock);
return g_module_error() == NULL;
1998-08-09 10:32:18 +02:00
}
void
g_module_make_resident (GModule *module)
{
g_return_if_fail (module != NULL);
module->is_resident = TRUE;
}
2011-11-15 03:06:30 +01:00
/**
* g_module_error:
*
* Gets a string describing the last module error.
*
* Returns: a string describing the last module error
*/
const gchar *
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g_module_error (void)
{
return g_private_get (&module_error_private);
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}
2011-11-15 03:06:30 +01:00
/**
* g_module_symbol:
* @module: a #GModule
* @symbol_name: the name of the symbol to find
* @symbol: returns the pointer to the symbol value
*
* Gets a symbol pointer from a module, such as one exported
* by #G_MODULE_EXPORT. Note that a valid symbol can be %NULL.
*
* Returns: %TRUE on success
*/
1998-08-09 10:32:18 +02:00
gboolean
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g_module_symbol (GModule *module,
const gchar *symbol_name,
gpointer *symbol)
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{
const gchar *module_error;
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if (symbol)
*symbol = NULL;
SUPPORT_OR_RETURN (FALSE);
1998-08-09 10:32:18 +02:00
g_return_val_if_fail (module != NULL, FALSE);
g_return_val_if_fail (symbol_name != NULL, FALSE);
g_return_val_if_fail (symbol != NULL, FALSE);
g_rec_mutex_lock (&g_module_global_lock);
1998-08-09 10:32:18 +02:00
#ifdef G_MODULE_NEED_USCORE
{
gchar *name;
name = g_strconcat ("_", symbol_name, NULL);
*symbol = _g_module_symbol (module->handle, name);
g_free (name);
}
1998-08-09 10:32:18 +02:00
#else /* !G_MODULE_NEED_USCORE */
*symbol = _g_module_symbol (module->handle, symbol_name);
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#endif /* !G_MODULE_NEED_USCORE */
module_error = g_module_error ();
if (module_error)
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{
gchar *error;
error = g_strconcat ("`", symbol_name, "': ", module_error, NULL);
g_module_set_error (error);
g_free (error);
1998-08-09 10:32:18 +02:00
*symbol = NULL;
}
g_rec_mutex_unlock (&g_module_global_lock);
return !module_error;
1998-08-09 10:32:18 +02:00
}
2011-11-15 03:06:30 +01:00
/**
* g_module_name:
* @module: a #GModule to make permanently resident
*
* Ensures that a module will never be unloaded.
* Any future g_module_close() calls on the module will be ignored.
*/
const gchar *
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g_module_name (GModule *module)
{
g_return_val_if_fail (module != NULL, NULL);
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if (module == main_module)
return "main";
1998-08-09 10:32:18 +02:00
return module->file_name;
}
removed dummy structure definitions for struct _GCache, _GTree, _GTimer, Tue Oct 27 03:00:50 1998 Tim Janik <timj@gtk.org> * glib.h: removed dummy structure definitions for struct _GCache, _GTree, _GTimer, _GMemChunk, _GListAllocator and _GStringChunk. * gutils.c: implement glib's inline functions _after_ all include statements have been processed. removed Tor's MAXPATHLEN check since there already was one supplied further down in this file. (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. why in hell is this stuff required? (g_get_any_init): for windows, if the user name is supplied, use it as realname also. in general, if there is no homedir specified, use the tmpdir that we already figured. * gtimer.c (g_timer_elapsed): changed a g_assert() statement to g_return_if_fail(). * applied glib-tml-981020-0.patch for WIN32 portability, added some comments and g_return_if_fail() statements, minor indentation fixes. ChangeLog entry from Tor Lillqvist is appended. * glib.h (struct dirent): use lower case structure members. * glib.h: * makefile.lcc: * makefile.msc: s/COMPILING_GLIB/GLIB_COMPILATION/ 1998-10-20: Tor Lillqvist <tml@iki.fi> * README.win32 glib.def gmodule.def * glibconfig.h.win32 gmodule/gmoduleconf.h.win32: New files for the Windows port. The .def files list exported symbols for the Microsoft linker and compatibles. * configure.in: Added checks for some platform-dependent headers: pwd.h sys/param.h sys/select.h sys/time.h sys/times.h unistd.h, and the function lstat. * gerror.c: Conditionalized inclusion of system-dependent headers. Changes for Windows: no gdb to do a stack trace. Just call abort(). * glib.h: Changes for Windows: Added macros G_DIR_SEPARATOR, G_DIR_SEPARATOR_S for platform-dependent file name syntax elements. Added macros G_SEARCHPATH_SEPARATOR, G_SEARCHPATH_SEPARATOR_S for platform-dependent search path syntax conventions. Added pragmas for Microsoft C to make it more pedantic. Marked GLib's global variables for export from DLL. Added the function g_strescape that escapes backslashes. Added functions g_path_is_absolute and g_path_skip_root to handle platform-dependent file name syntax. Added the function g_getenv that expands environment variables that contain references to other environment variables, as is typical on Windows NT. Added the GIOChannel structure which is used to encapsulate the IPC mechanism used by the GIMP's plug-ins, and possibly other things later. On Unix a GIOChannel encapsulates just a file descriptor. On Windows it contains a file handle from _pipe() and a few other things related to the implementation of gdk_input_add and GIMP plug-in communication. Subject to change. Removed duplicate declarations of the version variables. For the Microsoft compiler, declare own implementation of ftruncate and the <dirent.h> functions. * gmem.c: Define a symbolic name for the profiling table size. * gmessages.c: Conditionalized inclusion of unistd.h. On Windows, output using stdio to stdout. * gscanner.c: Conditionalized inclusion of unistd.h. Added changes for Microsoft C. Added CR to the skipped character set. Added small workaround for MSC compiler bug in g_scanner_cur_value. * gstrfuncs.c: Added the function g_strescape, which escapes the backslash character. Needed especially when printing Windows filenames. * gtimer.c: Conditionalized inclusion of unistd.h and sys/time.h. Added implementations for Windows. * gutils.c: Conditionalized inclusion of platform-dependent headers. Use the platform-independent file name syntax macros. Conditionalize code on platform-dependent features. Added the functions g_path_is_absolute g_path_skip_root and g_getenv. Added the GIOChannel-related functions. Added compiler-dependent Unix compatibility functions for Windows. * makefile.lcc makefile.msc: New files. Compiler-specific makefiles for LCC-Win32 and Microsoft C. Only Microsoft C is actually supported currently. * testglib.c: Added pathname check cases for Windows. Added workaround for bug in the Microsoft runtime library. Improved some tests a bit. Tue Oct 27 04:00:11 1998 Tim Janik <timj@gtk.org> * testgmodule.c (main): changed the #ifdef WIN32 test to NATIVE_WIN32, this needs to be more constistent throughout the code, do we go for NATIVE_WIN32 or WIN32? * gmodule.c (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. * libgplugin_a.c (LibMain): * libgplugin_b.c (LibMain): likewise. not sure i like this special requirement for lcc in here. * gmodule-dl.c (_g_module_build_path): feature empty "" directories and prepend the module name with "lib". * gmodule-dld.c (_g_module_build_path): * gmodule-win32.c (_g_module_build_path): feature empty "" directories. * we need some more magic in the _g_module_build_path variants so we don't append/prepend lib and .so, .sl or .dll for those names that already contain it. * applied patch from Tor Lillqvist for g_module_build_path() and windows support. 1998-10-20: Tor Lillqvist <tml@iki.fi> * gmodule/gmodule-win32.c: New file. * gmodule/gmodule.c gmodule/gmodule.h: Added the funcion g_module_build_path that builds the path to a module file, decorating the name according to the system's conventions. Added the Windows implementation. * gmodule/libgplugin_a.c gmodule/libgplugin_b.c: Added LibMain for LCC-Win32. * gmodule/testgmodule.c: Handle Windows dll names.
1998-10-27 05:11:34 +01:00
#if defined (G_OS_WIN32) && !defined(_WIN64)
#undef g_module_name
const gchar *
g_module_name (GModule *module)
{
g_return_val_if_fail (module != NULL, NULL);
if (module == main_module)
return "main";
return module->cp_file_name;
}
#endif
2011-11-15 03:06:30 +01:00
/**
* g_module_build_path:
* @directory: the directory where the module is. This can be %NULL
* or the empty string to indicate that the standard platform-specific
* directories will be used, though that is not recommended
* @module_name: the name of the module
*
* A portable way to build the filename of a module. The platform-specific
* prefix and suffix are added to the filename, if needed, and the result
* is added to the directory, using the correct separator character.
*
* The directory should specify the directory where the module can be found.
* It can be %NULL or an empty string to indicate that the module is in a
* standard platform-specific directory, though this is not recommended
* since the wrong module may be found.
*
* For example, calling g_module_build_path() on a Linux system with a
* @directory of <filename>/lib</filename> and a @module_name of "mylibrary"
* will return <filename>/lib/libmylibrary.so</filename>. On a Windows system,
* using <filename>\Windows</filename> as the directory it will return
* <filename>\Windows\mylibrary.dll</filename>.
*
* Returns: the complete path of the module, including the standard library
* prefix and suffix. This should be freed when no longer needed
*/
gchar *
removed dummy structure definitions for struct _GCache, _GTree, _GTimer, Tue Oct 27 03:00:50 1998 Tim Janik <timj@gtk.org> * glib.h: removed dummy structure definitions for struct _GCache, _GTree, _GTimer, _GMemChunk, _GListAllocator and _GStringChunk. * gutils.c: implement glib's inline functions _after_ all include statements have been processed. removed Tor's MAXPATHLEN check since there already was one supplied further down in this file. (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. why in hell is this stuff required? (g_get_any_init): for windows, if the user name is supplied, use it as realname also. in general, if there is no homedir specified, use the tmpdir that we already figured. * gtimer.c (g_timer_elapsed): changed a g_assert() statement to g_return_if_fail(). * applied glib-tml-981020-0.patch for WIN32 portability, added some comments and g_return_if_fail() statements, minor indentation fixes. ChangeLog entry from Tor Lillqvist is appended. * glib.h (struct dirent): use lower case structure members. * glib.h: * makefile.lcc: * makefile.msc: s/COMPILING_GLIB/GLIB_COMPILATION/ 1998-10-20: Tor Lillqvist <tml@iki.fi> * README.win32 glib.def gmodule.def * glibconfig.h.win32 gmodule/gmoduleconf.h.win32: New files for the Windows port. The .def files list exported symbols for the Microsoft linker and compatibles. * configure.in: Added checks for some platform-dependent headers: pwd.h sys/param.h sys/select.h sys/time.h sys/times.h unistd.h, and the function lstat. * gerror.c: Conditionalized inclusion of system-dependent headers. Changes for Windows: no gdb to do a stack trace. Just call abort(). * glib.h: Changes for Windows: Added macros G_DIR_SEPARATOR, G_DIR_SEPARATOR_S for platform-dependent file name syntax elements. Added macros G_SEARCHPATH_SEPARATOR, G_SEARCHPATH_SEPARATOR_S for platform-dependent search path syntax conventions. Added pragmas for Microsoft C to make it more pedantic. Marked GLib's global variables for export from DLL. Added the function g_strescape that escapes backslashes. Added functions g_path_is_absolute and g_path_skip_root to handle platform-dependent file name syntax. Added the function g_getenv that expands environment variables that contain references to other environment variables, as is typical on Windows NT. Added the GIOChannel structure which is used to encapsulate the IPC mechanism used by the GIMP's plug-ins, and possibly other things later. On Unix a GIOChannel encapsulates just a file descriptor. On Windows it contains a file handle from _pipe() and a few other things related to the implementation of gdk_input_add and GIMP plug-in communication. Subject to change. Removed duplicate declarations of the version variables. For the Microsoft compiler, declare own implementation of ftruncate and the <dirent.h> functions. * gmem.c: Define a symbolic name for the profiling table size. * gmessages.c: Conditionalized inclusion of unistd.h. On Windows, output using stdio to stdout. * gscanner.c: Conditionalized inclusion of unistd.h. Added changes for Microsoft C. Added CR to the skipped character set. Added small workaround for MSC compiler bug in g_scanner_cur_value. * gstrfuncs.c: Added the function g_strescape, which escapes the backslash character. Needed especially when printing Windows filenames. * gtimer.c: Conditionalized inclusion of unistd.h and sys/time.h. Added implementations for Windows. * gutils.c: Conditionalized inclusion of platform-dependent headers. Use the platform-independent file name syntax macros. Conditionalize code on platform-dependent features. Added the functions g_path_is_absolute g_path_skip_root and g_getenv. Added the GIOChannel-related functions. Added compiler-dependent Unix compatibility functions for Windows. * makefile.lcc makefile.msc: New files. Compiler-specific makefiles for LCC-Win32 and Microsoft C. Only Microsoft C is actually supported currently. * testglib.c: Added pathname check cases for Windows. Added workaround for bug in the Microsoft runtime library. Improved some tests a bit. Tue Oct 27 04:00:11 1998 Tim Janik <timj@gtk.org> * testgmodule.c (main): changed the #ifdef WIN32 test to NATIVE_WIN32, this needs to be more constistent throughout the code, do we go for NATIVE_WIN32 or WIN32? * gmodule.c (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. * libgplugin_a.c (LibMain): * libgplugin_b.c (LibMain): likewise. not sure i like this special requirement for lcc in here. * gmodule-dl.c (_g_module_build_path): feature empty "" directories and prepend the module name with "lib". * gmodule-dld.c (_g_module_build_path): * gmodule-win32.c (_g_module_build_path): feature empty "" directories. * we need some more magic in the _g_module_build_path variants so we don't append/prepend lib and .so, .sl or .dll for those names that already contain it. * applied patch from Tor Lillqvist for g_module_build_path() and windows support. 1998-10-20: Tor Lillqvist <tml@iki.fi> * gmodule/gmodule-win32.c: New file. * gmodule/gmodule.c gmodule/gmodule.h: Added the funcion g_module_build_path that builds the path to a module file, decorating the name according to the system's conventions. Added the Windows implementation. * gmodule/libgplugin_a.c gmodule/libgplugin_b.c: Added LibMain for LCC-Win32. * gmodule/testgmodule.c: Handle Windows dll names.
1998-10-27 05:11:34 +01:00
g_module_build_path (const gchar *directory,
2011-11-15 03:06:30 +01:00
const gchar *module_name)
removed dummy structure definitions for struct _GCache, _GTree, _GTimer, Tue Oct 27 03:00:50 1998 Tim Janik <timj@gtk.org> * glib.h: removed dummy structure definitions for struct _GCache, _GTree, _GTimer, _GMemChunk, _GListAllocator and _GStringChunk. * gutils.c: implement glib's inline functions _after_ all include statements have been processed. removed Tor's MAXPATHLEN check since there already was one supplied further down in this file. (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. why in hell is this stuff required? (g_get_any_init): for windows, if the user name is supplied, use it as realname also. in general, if there is no homedir specified, use the tmpdir that we already figured. * gtimer.c (g_timer_elapsed): changed a g_assert() statement to g_return_if_fail(). * applied glib-tml-981020-0.patch for WIN32 portability, added some comments and g_return_if_fail() statements, minor indentation fixes. ChangeLog entry from Tor Lillqvist is appended. * glib.h (struct dirent): use lower case structure members. * glib.h: * makefile.lcc: * makefile.msc: s/COMPILING_GLIB/GLIB_COMPILATION/ 1998-10-20: Tor Lillqvist <tml@iki.fi> * README.win32 glib.def gmodule.def * glibconfig.h.win32 gmodule/gmoduleconf.h.win32: New files for the Windows port. The .def files list exported symbols for the Microsoft linker and compatibles. * configure.in: Added checks for some platform-dependent headers: pwd.h sys/param.h sys/select.h sys/time.h sys/times.h unistd.h, and the function lstat. * gerror.c: Conditionalized inclusion of system-dependent headers. Changes for Windows: no gdb to do a stack trace. Just call abort(). * glib.h: Changes for Windows: Added macros G_DIR_SEPARATOR, G_DIR_SEPARATOR_S for platform-dependent file name syntax elements. Added macros G_SEARCHPATH_SEPARATOR, G_SEARCHPATH_SEPARATOR_S for platform-dependent search path syntax conventions. Added pragmas for Microsoft C to make it more pedantic. Marked GLib's global variables for export from DLL. Added the function g_strescape that escapes backslashes. Added functions g_path_is_absolute and g_path_skip_root to handle platform-dependent file name syntax. Added the function g_getenv that expands environment variables that contain references to other environment variables, as is typical on Windows NT. Added the GIOChannel structure which is used to encapsulate the IPC mechanism used by the GIMP's plug-ins, and possibly other things later. On Unix a GIOChannel encapsulates just a file descriptor. On Windows it contains a file handle from _pipe() and a few other things related to the implementation of gdk_input_add and GIMP plug-in communication. Subject to change. Removed duplicate declarations of the version variables. For the Microsoft compiler, declare own implementation of ftruncate and the <dirent.h> functions. * gmem.c: Define a symbolic name for the profiling table size. * gmessages.c: Conditionalized inclusion of unistd.h. On Windows, output using stdio to stdout. * gscanner.c: Conditionalized inclusion of unistd.h. Added changes for Microsoft C. Added CR to the skipped character set. Added small workaround for MSC compiler bug in g_scanner_cur_value. * gstrfuncs.c: Added the function g_strescape, which escapes the backslash character. Needed especially when printing Windows filenames. * gtimer.c: Conditionalized inclusion of unistd.h and sys/time.h. Added implementations for Windows. * gutils.c: Conditionalized inclusion of platform-dependent headers. Use the platform-independent file name syntax macros. Conditionalize code on platform-dependent features. Added the functions g_path_is_absolute g_path_skip_root and g_getenv. Added the GIOChannel-related functions. Added compiler-dependent Unix compatibility functions for Windows. * makefile.lcc makefile.msc: New files. Compiler-specific makefiles for LCC-Win32 and Microsoft C. Only Microsoft C is actually supported currently. * testglib.c: Added pathname check cases for Windows. Added workaround for bug in the Microsoft runtime library. Improved some tests a bit. Tue Oct 27 04:00:11 1998 Tim Janik <timj@gtk.org> * testgmodule.c (main): changed the #ifdef WIN32 test to NATIVE_WIN32, this needs to be more constistent throughout the code, do we go for NATIVE_WIN32 or WIN32? * gmodule.c (LibMain): special cased the #ifdef __LCC__ case for NATIVE_WIN32, since lcc maybe used on other platforms as well. * libgplugin_a.c (LibMain): * libgplugin_b.c (LibMain): likewise. not sure i like this special requirement for lcc in here. * gmodule-dl.c (_g_module_build_path): feature empty "" directories and prepend the module name with "lib". * gmodule-dld.c (_g_module_build_path): * gmodule-win32.c (_g_module_build_path): feature empty "" directories. * we need some more magic in the _g_module_build_path variants so we don't append/prepend lib and .so, .sl or .dll for those names that already contain it. * applied patch from Tor Lillqvist for g_module_build_path() and windows support. 1998-10-20: Tor Lillqvist <tml@iki.fi> * gmodule/gmodule-win32.c: New file. * gmodule/gmodule.c gmodule/gmodule.h: Added the funcion g_module_build_path that builds the path to a module file, decorating the name according to the system's conventions. Added the Windows implementation. * gmodule/libgplugin_a.c gmodule/libgplugin_b.c: Added LibMain for LCC-Win32. * gmodule/testgmodule.c: Handle Windows dll names.
1998-10-27 05:11:34 +01:00
{
g_return_val_if_fail (module_name != NULL, NULL);
return _g_module_build_path (directory, module_name);
}