1 /*****************************************************************************
2 * modules.c : Builtin and plugin modules management functions
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
7 * Authors: Sam Hocevar <sam@zoy.org>
8 * Ethan C. Baldridge <BaldridgeE@cadmus.com>
9 * Hans-Peter Jansen <hpj@urpla.net>
10 * Gildas Bazin <gbazin@videolan.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
29 /* Some faulty libcs have a broken struct dirent when _FILE_OFFSET_BITS
30 * is set to 64. Don't try to be cleverer. */
31 #ifdef _FILE_OFFSET_BITS
32 #undef _FILE_OFFSET_BITS
35 #include <stdlib.h> /* free(), strtol() */
36 #include <stdio.h> /* sprintf() */
37 #include <string.h> /* strdup() */
43 #ifdef HAVE_SYS_TYPES_H
44 # include <sys/types.h>
46 #ifdef HAVE_SYS_STAT_H
47 # include <sys/stat.h>
53 #if !defined(HAVE_DYNAMIC_PLUGINS)
54 /* no support for plugins */
55 #elif defined(HAVE_DL_DYLD)
56 # if defined(HAVE_MACH_O_DYLD_H)
57 # include <mach-o/dyld.h>
59 #elif defined(HAVE_DL_BEOS)
60 # if defined(HAVE_IMAGE_H)
63 #elif defined(HAVE_DL_WINDOWS)
65 #elif defined(HAVE_DL_DLOPEN)
66 # if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
69 # if defined(HAVE_SYS_DL_H)
72 #elif defined(HAVE_DL_SHL_LOAD)
73 # if defined(HAVE_DL_H)
78 #include "vlc_interface.h"
80 #include "vlc_playlist.h"
83 #include "vlc_vout_synchro.h"
88 #include "vlc_httpd.h"
96 #include "vlc_charset.h"
98 #include "vlc_block.h"
102 #include "vlc_image.h"
105 #include "vlc_update.h"
106 #include "vlc_strings.h"
107 #include "vlc_streaming.h"
111 #if defined( _MSC_VER ) && defined( UNDER_CE )
112 # include "modules_builtin_evc.h"
113 #elif defined( _MSC_VER )
114 # include "modules_builtin_msvc.h"
116 # include "modules_builtin.h"
118 #include "vlc_network.h"
120 #if defined( WIN32 ) || defined( UNDER_CE )
121 /* Avoid name collisions */
122 # define LoadModule(a,b,c) LoadVlcModule(a,b,c)
125 /*****************************************************************************
127 *****************************************************************************/
128 #ifdef HAVE_DYNAMIC_PLUGINS
129 static void AllocateAllPlugins ( vlc_object_t * );
130 static void AllocatePluginDir ( vlc_object_t *, const char *, int );
131 static int AllocatePluginFile ( vlc_object_t *, char *, int64_t, int64_t );
132 static module_t * AllocatePlugin( vlc_object_t *, char * );
134 static int AllocateBuiltinModule( vlc_object_t *, int ( * ) ( module_t * ) );
135 static int DeleteModule ( module_t * );
136 #ifdef HAVE_DYNAMIC_PLUGINS
137 static void DupModule ( module_t * );
138 static void UndupModule ( module_t * );
139 static int CallEntry ( module_t * );
140 static int LoadModule ( vlc_object_t *, char *, module_handle_t * );
141 static void CloseModule ( module_handle_t );
142 static void * GetSymbol ( module_handle_t, const char * );
143 static void CacheLoad ( vlc_object_t * );
144 static int CacheLoadConfig ( module_t *, FILE * );
145 static void CacheSave ( vlc_object_t * );
146 static void CacheSaveConfig ( module_t *, FILE * );
147 static char * CacheName ( void );
148 static void CacheMerge ( vlc_object_t *, module_t *, module_t * );
149 static module_cache_t * CacheFind( vlc_object_t *, char *, int64_t, int64_t );
151 #if defined(HAVE_DL_WINDOWS)
152 static char * GetWindowsError ( void );
157 /* Sub-version number
158 * (only used to avoid breakage in dev version when cache structure changes) */
159 #define CACHE_SUBVERSION_NUM 1
161 /*****************************************************************************
162 * module_InitBank: create the module bank.
163 *****************************************************************************
164 * This function creates a module bank structure which will be filled later
165 * on with all the modules found.
166 *****************************************************************************/
167 void __module_InitBank( vlc_object_t *p_this )
169 module_bank_t *p_bank;
172 var_Create( p_this->p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
173 var_Get( p_this->p_libvlc_global, "libvlc", &lockval );
174 vlc_mutex_lock( lockval.p_address );
175 if( p_this->p_libvlc_global->p_module_bank )
177 p_this->p_libvlc_global->p_module_bank->i_usage++;
178 vlc_mutex_unlock( lockval.p_address );
179 var_Destroy( p_this->p_libvlc_global, "libvlc" );
182 vlc_mutex_unlock( lockval.p_address );
183 var_Destroy( p_this->p_libvlc_global, "libvlc" );
185 p_bank = vlc_object_create( p_this, sizeof(module_bank_t) );
186 p_bank->psz_object_name = "module bank";
188 p_bank->i_cache = p_bank->i_loaded_cache = 0;
189 p_bank->pp_cache = p_bank->pp_loaded_cache = 0;
190 p_bank->b_cache = p_bank->b_cache_dirty =
191 p_bank->b_cache_delete = VLC_FALSE;
194 * Store the symbols to be exported
196 #if defined (HAVE_DYNAMIC_PLUGINS) && !defined (HAVE_SHARED_LIBVLC)
197 STORE_SYMBOLS( &p_bank->symbols );
200 /* Everything worked, attach the object */
201 p_this->p_libvlc_global->p_module_bank = p_bank;
202 vlc_object_attach( p_bank, p_this->p_libvlc_global );
204 module_LoadMain( p_this );
209 /*****************************************************************************
210 * module_ResetBank: reset the module bank.
211 *****************************************************************************
212 * This function resets the module bank by unloading all unused plugin
214 *****************************************************************************/
215 void __module_ResetBank( vlc_object_t *p_this )
217 msg_Err( p_this, "FIXME: module_ResetBank unimplemented" );
221 /*****************************************************************************
222 * module_EndBank: empty the module bank.
223 *****************************************************************************
224 * This function unloads all unused plugin modules and empties the module
225 * bank in case of success.
226 *****************************************************************************/
227 void __module_EndBank( vlc_object_t *p_this )
232 var_Create( p_this->p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
233 var_Get( p_this->p_libvlc_global, "libvlc", &lockval );
234 vlc_mutex_lock( lockval.p_address );
235 if( !p_this->p_libvlc_global->p_module_bank )
237 vlc_mutex_unlock( lockval.p_address );
238 var_Destroy( p_this->p_libvlc_global, "libvlc" );
241 if( --p_this->p_libvlc_global->p_module_bank->i_usage )
243 vlc_mutex_unlock( lockval.p_address );
244 var_Destroy( p_this->p_libvlc_global, "libvlc" );
247 vlc_mutex_unlock( lockval.p_address );
248 var_Destroy( p_this->p_libvlc_global, "libvlc" );
250 config_AutoSaveConfigFile( p_this );
252 #ifdef HAVE_DYNAMIC_PLUGINS
253 #define p_bank p_this->p_libvlc_global->p_module_bank
254 if( p_bank->b_cache ) CacheSave( p_this );
255 while( p_bank->i_loaded_cache-- )
257 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->psz_file );
258 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache] );
260 if( p_bank->pp_loaded_cache )
261 free( p_bank->pp_loaded_cache );
263 while( p_bank->i_cache-- )
265 free( p_bank->pp_cache[p_bank->i_cache]->psz_file );
266 free( p_bank->pp_cache[p_bank->i_cache] );
268 if( p_bank->pp_cache )
269 free( p_bank->pp_cache );
273 vlc_object_detach( p_this->p_libvlc_global->p_module_bank );
275 while( p_this->p_libvlc_global->p_module_bank->i_children )
277 p_next = (module_t *)p_this->p_libvlc_global->p_module_bank->pp_children[0];
279 if( DeleteModule( p_next ) )
281 /* Module deletion failed */
282 msg_Err( p_this, "module \"%s\" can't be removed, trying harder",
283 p_next->psz_object_name );
285 /* We just free the module by hand. Niahahahahaha. */
286 vlc_object_detach( p_next );
287 vlc_object_destroy( p_next );
291 vlc_object_destroy( p_this->p_libvlc_global->p_module_bank );
292 p_this->p_libvlc_global->p_module_bank = NULL;
297 /*****************************************************************************
298 * module_LoadMain: load the main program info into the module bank.
299 *****************************************************************************
300 * This function fills the module bank structure with the main module infos.
301 * This is very useful as it will allow us to consider the main program just
302 * as another module, and for instance the configuration options of main will
303 * be available in the module bank structure just as for every other module.
304 *****************************************************************************/
305 void __module_LoadMain( vlc_object_t *p_this )
309 var_Create( p_this->p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
310 var_Get( p_this->p_libvlc_global, "libvlc", &lockval );
311 vlc_mutex_lock( lockval.p_address );
312 if( p_this->p_libvlc_global->p_module_bank->b_main )
314 vlc_mutex_unlock( lockval.p_address );
315 var_Destroy( p_this->p_libvlc_global, "libvlc" );
318 p_this->p_libvlc_global->p_module_bank->b_main = VLC_TRUE;
319 vlc_mutex_unlock( lockval.p_address );
320 var_Destroy( p_this->p_libvlc_global, "libvlc" );
322 AllocateBuiltinModule( p_this, vlc_entry__main );
325 /*****************************************************************************
326 * module_LoadBuiltins: load all modules which we built with.
327 *****************************************************************************
328 * This function fills the module bank structure with the builtin modules.
329 *****************************************************************************/
330 void __module_LoadBuiltins( vlc_object_t * p_this )
334 var_Create( p_this->p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
335 var_Get( p_this->p_libvlc_global, "libvlc", &lockval );
336 vlc_mutex_lock( lockval.p_address );
337 if( p_this->p_libvlc_global->p_module_bank->b_builtins )
339 vlc_mutex_unlock( lockval.p_address );
340 var_Destroy( p_this->p_libvlc_global, "libvlc" );
343 p_this->p_libvlc_global->p_module_bank->b_builtins = VLC_TRUE;
344 vlc_mutex_unlock( lockval.p_address );
345 var_Destroy( p_this->p_libvlc_global, "libvlc" );
347 msg_Dbg( p_this, "checking builtin modules" );
348 ALLOCATE_ALL_BUILTINS();
351 /*****************************************************************************
352 * module_LoadPlugins: load all plugin modules we can find.
353 *****************************************************************************
354 * This function fills the module bank structure with the plugin modules.
355 *****************************************************************************/
356 void __module_LoadPlugins( vlc_object_t * p_this )
358 #ifdef HAVE_DYNAMIC_PLUGINS
361 var_Create( p_this->p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
362 var_Get( p_this->p_libvlc_global, "libvlc", &lockval );
363 vlc_mutex_lock( lockval.p_address );
364 if( p_this->p_libvlc_global->p_module_bank->b_plugins )
366 vlc_mutex_unlock( lockval.p_address );
367 var_Destroy( p_this->p_libvlc_global, "libvlc" );
370 p_this->p_libvlc_global->p_module_bank->b_plugins = VLC_TRUE;
371 vlc_mutex_unlock( lockval.p_address );
372 var_Destroy( p_this->p_libvlc_global, "libvlc" );
374 msg_Dbg( p_this, "checking plugin modules" );
376 if( config_GetInt( p_this, "plugins-cache" ) )
377 p_this->p_libvlc_global->p_module_bank->b_cache = VLC_TRUE;
379 if( p_this->p_libvlc_global->p_module_bank->b_cache ||
380 p_this->p_libvlc_global->p_module_bank->b_cache_delete ) CacheLoad( p_this );
382 AllocateAllPlugins( p_this );
386 /*****************************************************************************
387 * module_Need: return the best module function, given a capability list.
388 *****************************************************************************
389 * This function returns the module that best fits the asked capabilities.
390 *****************************************************************************/
391 module_t * __module_Need( vlc_object_t *p_this, const char *psz_capability,
392 const char *psz_name, vlc_bool_t b_strict )
394 typedef struct module_list_t module_list_t;
401 module_list_t *p_next;
404 module_list_t *p_list, *p_first, *p_tmp;
407 int i_which_module, i_index = 0;
408 vlc_bool_t b_intf = VLC_FALSE;
413 char *psz_shortcuts = NULL, *psz_var = NULL;
414 vlc_bool_t b_force_backup = p_this->b_force;
417 /* Deal with variables */
418 if( psz_name && psz_name[0] == '$' )
421 var_Create( p_this, psz_name + 1, VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
422 var_Get( p_this, psz_name + 1, &val );
423 psz_var = val.psz_string;
427 /* Count how many different shortcuts were asked for */
428 if( psz_name && *psz_name )
430 char *psz_parser, *psz_last_shortcut;
432 /* If the user wants none, give him none. */
433 if( !strcmp( psz_name, "none" ) )
435 if( psz_var ) free( psz_var );
440 psz_shortcuts = psz_last_shortcut = strdup( psz_name );
442 for( psz_parser = psz_shortcuts; *psz_parser; psz_parser++ )
444 if( *psz_parser == ',' )
448 psz_last_shortcut = psz_parser + 1;
452 /* Check if the user wants to override the "strict" mode */
453 if( psz_last_shortcut )
455 if( !strcmp(psz_last_shortcut, "none") )
460 else if( !strcmp(psz_last_shortcut, "any") )
462 b_strict = VLC_FALSE;
468 /* Sort the modules and test them */
469 p_all = vlc_list_find( p_this, VLC_OBJECT_MODULE, FIND_ANYWHERE );
470 p_list = malloc( p_all->i_count * sizeof( module_list_t ) );
473 /* Parse the module list for capabilities and probe each of them */
474 for( i_which_module = 0; i_which_module < p_all->i_count; i_which_module++ )
476 int i_shortcut_bonus = 0;
478 p_module = (module_t *)p_all->p_values[i_which_module].p_object;
480 /* Test that this module can do what we need */
481 if( strcmp( p_module->psz_capability, psz_capability ) )
483 /* Don't recurse through the sub-modules because vlc_list_find()
484 * will list them anyway. */
488 /* Test if we have the required CPU */
489 if( (p_module->i_cpu & p_this->p_libvlc_global->i_cpu) != p_module->i_cpu )
494 /* If we required a shortcut, check this plugin provides it. */
495 if( i_shortcuts > 0 )
498 int i_dummy, i_short = i_shortcuts;
499 char *psz_name = psz_shortcuts;
501 /* Let's drop modules with a <= 0 score (unless they are
502 * explicitly requested) */
503 b_trash = p_module->i_score <= 0;
507 for( i_dummy = 0; p_module->pp_shortcuts[i_dummy]; i_dummy++ )
509 if( !strcasecmp( psz_name,
510 p_module->pp_shortcuts[i_dummy] ) )
514 i_shortcut_bonus = i_short * 10000;
519 if( i_shortcut_bonus )
521 /* We found it... remember ? */
525 /* Go to the next shortcut... This is so lame! */
534 /* If we are in "strict" mode and we couldn't
535 * find the module in the list of provided shortcuts,
536 * then kick the bastard out of here!!! */
537 if( i_short == 0 && b_strict )
547 /* If we didn't require a shortcut, trash <= 0 scored plugins */
548 else if( p_module->i_score <= 0 )
553 /* Special case: test if we requested a particular intf plugin */
554 if( !i_shortcuts && p_module->psz_program
555 && !strcmp( psz_capability, "interface" )
556 && !strcmp( p_module->psz_program,
557 p_this->p_libvlc->psz_object_name ) )
561 /* Remove previous non-matching plugins */
568 /* This one doesn't match */
572 /* Store this new module */
573 p_list[ i_index ].p_module = p_module;
574 p_list[ i_index ].i_score = p_module->i_score + i_shortcut_bonus;
575 p_list[ i_index ].b_force = i_shortcut_bonus && b_strict;
577 /* Add it to the modules-to-probe list */
580 p_list[ 0 ].p_next = NULL;
585 /* Ok, so at school you learned that quicksort is quick, and
586 * bubble sort sucks raw eggs. But that's when dealing with
587 * thousands of items. Here we have barely 50. */
588 module_list_t *p_newlist = p_first;
590 if( p_first->i_score < p_list[ i_index ].i_score )
592 p_list[ i_index ].p_next = p_first;
593 p_first = &p_list[ i_index ];
597 while( p_newlist->p_next != NULL &&
598 p_newlist->p_next->i_score >= p_list[ i_index ].i_score )
600 p_newlist = p_newlist->p_next;
603 p_list[ i_index ].p_next = p_newlist->p_next;
604 p_newlist->p_next = &p_list[ i_index ];
611 msg_Dbg( p_this, "looking for %s module: %i candidate%s", psz_capability,
612 i_index, i_index == 1 ? "" : "s" );
614 /* Lock all candidate modules */
616 while( p_tmp != NULL )
618 vlc_object_yield( p_tmp->p_module );
619 p_tmp = p_tmp->p_next;
622 /* We can release the list, interesting modules were yielded */
623 vlc_list_release( p_all );
625 /* Parse the linked list and use the first successful module */
627 while( p_tmp != NULL )
629 #ifdef HAVE_DYNAMIC_PLUGINS
630 /* Make sure the module is loaded in mem */
631 module_t *p_module = p_tmp->p_module->b_submodule ?
632 (module_t *)p_tmp->p_module->p_parent : p_tmp->p_module;
633 if( !p_module->b_builtin && !p_module->b_loaded )
635 module_t *p_new_module =
636 AllocatePlugin( p_this, p_module->psz_filename );
639 CacheMerge( p_this, p_module, p_new_module );
640 vlc_object_attach( p_new_module, p_module );
641 DeleteModule( p_new_module );
646 p_this->b_force = p_tmp->b_force;
647 if( p_tmp->p_module->pf_activate
648 && p_tmp->p_module->pf_activate( p_this ) == VLC_SUCCESS )
653 vlc_object_release( p_tmp->p_module );
654 p_tmp = p_tmp->p_next;
657 /* Store the locked module value */
660 p_module = p_tmp->p_module;
661 p_tmp = p_tmp->p_next;
668 /* Unlock the remaining modules */
669 while( p_tmp != NULL )
671 vlc_object_release( p_tmp->p_module );
672 p_tmp = p_tmp->p_next;
676 p_this->b_force = b_force_backup;
678 if( p_module != NULL )
680 msg_Dbg( p_this, "using %s module \"%s\"",
681 psz_capability, p_module->psz_object_name );
683 else if( p_first == NULL )
685 if( !strcmp( psz_capability, "access_demux" ) )
687 msg_Warn( p_this, "no %s module matched \"%s\"",
688 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
692 msg_Err( p_this, "no %s module matched \"%s\"",
693 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
696 else if( psz_name != NULL && *psz_name )
698 msg_Warn( p_this, "no %s module matching \"%s\" could be loaded",
699 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
704 free( psz_shortcuts );
712 /* Don't forget that the module is still locked */
716 /*****************************************************************************
717 * module_Unneed: decrease the usage count of a module.
718 *****************************************************************************
719 * This function must be called by the thread that called module_Need, to
720 * decrease the reference count and allow for hiding of modules.
721 *****************************************************************************/
722 void __module_Unneed( vlc_object_t * p_this, module_t * p_module )
724 /* Use the close method */
725 if( p_module->pf_deactivate )
727 p_module->pf_deactivate( p_this );
730 msg_Dbg( p_this, "removing module \"%s\"", p_module->psz_object_name );
732 vlc_object_release( p_module );
737 /*****************************************************************************
738 * Following functions are local.
739 *****************************************************************************/
741 /*****************************************************************************
742 * AllocateAllPlugins: load all plugin modules we can find.
743 *****************************************************************************/
744 #ifdef HAVE_DYNAMIC_PLUGINS
745 static void AllocateAllPlugins( vlc_object_t *p_this )
747 /* Yes, there are two NULLs because we replace one with "plugin-path". */
748 #if defined( WIN32 ) || defined( UNDER_CE )
749 const char *path[] = { "modules", "", "plugins", NULL, NULL };
751 const char *path[] = { "modules", PLUGIN_PATH, "plugins", NULL, NULL };
754 const char *const *ppsz_path;
756 /* If the user provided a plugin path, we add it to the list */
757 char *userpath = config_GetPsz( p_this, "plugin-path" );
758 path[sizeof(path)/sizeof(path[0]) - 2] = userpath;
760 for (ppsz_path = path; *ppsz_path != NULL; ppsz_path++)
764 if (!**ppsz_path) continue;
766 #if defined( SYS_BEOS ) || defined( __APPLE__ ) || defined( WIN32 )
768 /* Handle relative as well as absolute paths */
770 if( (*ppsz_path)[0] != '\\' && (*ppsz_path)[0] != '/' &&
771 (*ppsz_path)[1] != ':' )
773 if( (*ppsz_path)[0] != '/' )
776 if( 0>= asprintf(&psz_fullpath, "%s"DIR_SEP"%s",
777 p_this->p_libvlc_global->psz_vlcpath, *ppsz_path) )
782 psz_fullpath = strdup( *ppsz_path );
784 if( psz_fullpath == NULL )
787 msg_Dbg( p_this, "recursively browsing `%s'", psz_fullpath );
789 /* Don't go deeper than 5 subdirectories */
790 AllocatePluginDir( p_this, psz_fullpath, 5 );
792 free( psz_fullpath );
795 /* Free plugin-path */
796 if( userpath != NULL )
800 /*****************************************************************************
801 * AllocatePluginDir: recursively parse a directory to look for plugins
802 *****************************************************************************/
803 static void AllocatePluginDir( vlc_object_t *p_this, const char *psz_dir,
806 /* FIXME: Needs to be ported to wide char on ALL Windows builds */
812 #if defined( UNDER_CE ) || defined( _MSC_VER )
814 wchar_t psz_wpath[MAX_PATH + 256];
815 wchar_t psz_wdir[MAX_PATH];
817 char psz_path[MAX_PATH + 256];
818 WIN32_FIND_DATA finddata;
824 struct dirent * file;
828 if( p_this->p_libvlc->b_die || i_maxdepth < 0 )
833 #if defined( UNDER_CE ) || defined( _MSC_VER )
835 MultiByteToWideChar( CP_ACP, 0, psz_dir, -1, psz_wdir, MAX_PATH );
837 rc = GetFileAttributes( psz_wdir );
838 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
840 /* Parse all files in the directory */
841 swprintf( psz_wpath, L"%ls\\*", psz_wdir );
843 rc = GetFileAttributes( psz_dir );
844 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
847 /* Parse all files in the directory */
848 sprintf( psz_path, "%s\\*", psz_dir );
851 handle = FindFirstFile( psz_wpath, &finddata );
853 handle = FindFirstFile( psz_path, &finddata );
855 if( handle == INVALID_HANDLE_VALUE )
857 /* Empty directory */
861 /* Parse the directory and try to load all files it contains. */
865 unsigned int i_len = wcslen( finddata.cFileName );
866 swprintf( psz_wpath, L"%ls\\%ls", psz_wdir, finddata.cFileName );
867 sprintf( psz_path, "%s\\%ls", psz_dir, finddata.cFileName );
869 unsigned int i_len = strlen( finddata.cFileName );
870 sprintf( psz_path, "%s\\%s", psz_dir, finddata.cFileName );
874 if( !*finddata.cFileName || !strcmp( finddata.cFileName, "." )
875 || !strcmp( finddata.cFileName, ".." ) )
877 if( !FindNextFile( handle, &finddata ) ) break;
882 if( GetFileAttributes( psz_wpath ) & FILE_ATTRIBUTE_DIRECTORY )
884 if( GetFileAttributes( psz_path ) & FILE_ATTRIBUTE_DIRECTORY )
887 AllocatePluginDir( p_this, psz_path, i_maxdepth - 1 );
889 else if( i_len > strlen( LIBEXT )
890 /* We only load files ending with LIBEXT */
891 && !strncasecmp( psz_path + strlen( psz_path)
893 LIBEXT, strlen( LIBEXT ) ) )
895 WIN32_FILE_ATTRIBUTE_DATA attrbuf;
896 int64_t i_time = 0, i_size = 0;
899 if( GetFileAttributesEx( psz_wpath, GetFileExInfoStandard,
902 if( GetFileAttributesEx( psz_path, GetFileExInfoStandard,
906 i_time = attrbuf.ftLastWriteTime.dwHighDateTime;
908 i_time |= attrbuf.ftLastWriteTime.dwLowDateTime;
909 i_size = attrbuf.nFileSizeHigh;
911 i_size |= attrbuf.nFileSizeLow;
915 AllocatePluginFile( p_this, psz_file, i_time, i_size );
918 while( !p_this->p_libvlc->b_die && FindNextFile( handle, &finddata ) );
920 /* Close the directory */
924 dir = opendir( psz_dir );
930 i_dirlen = strlen( psz_dir );
932 /* Parse the directory and try to load all files it contains. */
933 while( !p_this->p_libvlc->b_die && (file = readdir( dir )) )
940 if( !*file->d_name || !strcmp( file->d_name, "." )
941 || !strcmp( file->d_name, ".." ) )
946 i_len = strlen( file->d_name );
947 psz_file = malloc( i_dirlen + 1 + i_len + 1 );
949 sprintf( psz_file, "%s\\%s", psz_dir, file->d_name );
951 sprintf( psz_file, "%s/%s", psz_dir, file->d_name );
954 i_stat = stat( psz_file, &statbuf );
955 if( !i_stat && statbuf.st_mode & S_IFDIR )
957 AllocatePluginDir( p_this, psz_file, i_maxdepth - 1 );
959 else if( i_len > strlen( LIBEXT )
960 /* We only load files ending with LIBEXT */
961 && !strncasecmp( file->d_name + i_len - strlen( LIBEXT ),
962 LIBEXT, strlen( LIBEXT ) ) )
964 int64_t i_time = 0, i_size = 0;
968 i_time = statbuf.st_mtime;
969 i_size = statbuf.st_size;
972 AllocatePluginFile( p_this, psz_file, i_time, i_size );
978 /* Close the directory */
984 /*****************************************************************************
985 * AllocatePluginFile: load a module into memory and initialize it.
986 *****************************************************************************
987 * This function loads a dynamically loadable module and allocates a structure
988 * for its information data. The module can then be handled by module_Need
989 * and module_Unneed. It can be removed by DeleteModule.
990 *****************************************************************************/
991 static int AllocatePluginFile( vlc_object_t * p_this, char * psz_file,
992 int64_t i_file_time, int64_t i_file_size )
995 module_cache_t *p_cache_entry = NULL;
998 * Check our plugins cache first then load plugin if needed
1001 CacheFind( p_this, psz_file, i_file_time, i_file_size );
1003 if( !p_cache_entry )
1005 p_module = AllocatePlugin( p_this, psz_file );
1009 /* If junk dll, don't try to load it */
1010 if( p_cache_entry->b_junk )
1016 module_config_t *p_item, *p_end;
1018 p_module = p_cache_entry->p_module;
1019 p_module->b_loaded = VLC_FALSE;
1021 /* For now we force loading if the module's config contains
1022 * callbacks or actions.
1023 * Could be optimized by adding an API call.*/
1024 for( p_item = p_module->p_config, p_end = p_item + p_module->confsize;
1025 p_item < p_end; p_item++ )
1027 if( p_item->pf_callback || p_item->i_action )
1028 p_module = AllocatePlugin( p_this, psz_file );
1035 /* Everything worked fine !
1036 * The module is ready to be added to the list. */
1037 p_module->b_builtin = VLC_FALSE;
1039 /* msg_Dbg( p_this, "plugin \"%s\", %s",
1040 p_module->psz_object_name, p_module->psz_longname ); */
1042 vlc_object_attach( p_module, p_this->p_libvlc_global->p_module_bank );
1045 if( !p_this->p_libvlc_global->p_module_bank->b_cache ) return 0;
1047 /* Add entry to cache */
1048 #define p_bank p_this->p_libvlc_global->p_module_bank
1050 realloc( p_bank->pp_cache, (p_bank->i_cache + 1) * sizeof(void *) );
1051 p_bank->pp_cache[p_bank->i_cache] = malloc( sizeof(module_cache_t) );
1052 p_bank->pp_cache[p_bank->i_cache]->psz_file = strdup( psz_file );
1053 p_bank->pp_cache[p_bank->i_cache]->i_time = i_file_time;
1054 p_bank->pp_cache[p_bank->i_cache]->i_size = i_file_size;
1055 p_bank->pp_cache[p_bank->i_cache]->b_junk = p_module ? 0 : 1;
1056 p_bank->pp_cache[p_bank->i_cache]->p_module = p_module;
1059 return p_module ? 0 : -1;
1062 /*****************************************************************************
1063 * AllocatePlugin: load a module into memory and initialize it.
1064 *****************************************************************************
1065 * This function loads a dynamically loadable module and allocates a structure
1066 * for its information data. The module can then be handled by module_Need
1067 * and module_Unneed. It can be removed by DeleteModule.
1068 *****************************************************************************/
1069 static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
1071 module_t * p_module;
1072 module_handle_t handle;
1074 if( LoadModule( p_this, psz_file, &handle ) ) return NULL;
1076 /* Now that we have successfully loaded the module, we can
1077 * allocate a structure for it */
1078 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1079 if( p_module == NULL )
1081 msg_Err( p_this, "out of memory" );
1082 CloseModule( handle );
1086 /* We need to fill these since they may be needed by CallEntry() */
1087 p_module->psz_filename = psz_file;
1088 p_module->handle = handle;
1089 #ifndef HAVE_SHARED_LIBVLC
1090 p_module->p_symbols = &p_this->p_libvlc_global->p_module_bank->symbols;
1092 p_module->b_loaded = VLC_TRUE;
1094 /* Initialize the module: fill p_module, default config */
1095 if( CallEntry( p_module ) != 0 )
1097 /* We couldn't call module_init() */
1098 vlc_object_destroy( p_module );
1099 CloseModule( handle );
1103 DupModule( p_module );
1104 p_module->psz_filename = strdup( p_module->psz_filename );
1106 /* Everything worked fine ! The module is ready to be added to the list. */
1107 p_module->b_builtin = VLC_FALSE;
1112 /*****************************************************************************
1113 * DupModule: make a plugin module standalone.
1114 *****************************************************************************
1115 * This function duplicates all strings in the module, so that the dynamic
1116 * object can be unloaded. It acts recursively on submodules.
1117 *****************************************************************************/
1118 static void DupModule( module_t *p_module )
1120 const char **pp_shortcut;
1123 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1125 *pp_shortcut = strdup( *pp_shortcut );
1128 /* We strdup() these entries so that they are still valid when the
1129 * module is unloaded. */
1130 p_module->psz_object_name = strdup( p_module->psz_object_name );
1131 p_module->psz_capability = strdup( p_module->psz_capability );
1132 p_module->psz_shortname = p_module->psz_shortname ?
1133 strdup( p_module->psz_shortname ) : NULL;
1134 p_module->psz_longname = strdup( p_module->psz_longname );
1136 if( p_module->psz_program != NULL )
1138 p_module->psz_program = strdup( p_module->psz_program );
1141 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1143 DupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1147 /*****************************************************************************
1148 * UndupModule: free a duplicated module.
1149 *****************************************************************************
1150 * This function frees the allocations done in DupModule().
1151 *****************************************************************************/
1152 static void UndupModule( module_t *p_module )
1154 const char **pp_shortcut;
1157 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1159 UndupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1162 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1164 free( (void *)*pp_shortcut );
1167 free( (void *)p_module->psz_object_name );
1168 free( (void *)p_module->psz_capability );
1169 if( p_module->psz_shortname ) free( (void *)p_module->psz_shortname );
1170 free( (void *)p_module->psz_longname );
1172 if( p_module->psz_program != NULL )
1174 free( (void *)p_module->psz_program );
1178 #endif /* HAVE_DYNAMIC_PLUGINS */
1180 /*****************************************************************************
1181 * AllocateBuiltinModule: initialize a builtin module.
1182 *****************************************************************************
1183 * This function registers a builtin module and allocates a structure
1184 * for its information data. The module can then be handled by module_Need
1185 * and module_Unneed. It can be removed by DeleteModule.
1186 *****************************************************************************/
1187 static int AllocateBuiltinModule( vlc_object_t * p_this,
1188 int ( *pf_entry ) ( module_t * ) )
1190 module_t * p_module;
1192 /* Now that we have successfully loaded the module, we can
1193 * allocate a structure for it */
1194 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1195 if( p_module == NULL )
1197 msg_Err( p_this, "out of memory" );
1201 /* Initialize the module : fill p_module->psz_object_name, etc. */
1202 if( pf_entry( p_module ) != 0 )
1204 /* With a well-written module we shouldn't have to print an
1205 * additional error message here, but just make sure. */
1206 msg_Err( p_this, "failed calling entry point in builtin module" );
1207 vlc_object_destroy( p_module );
1211 /* Everything worked fine ! The module is ready to be added to the list. */
1212 p_module->b_builtin = VLC_TRUE;
1214 /* msg_Dbg( p_this, "builtin \"%s\", %s",
1215 p_module->psz_object_name, p_module->psz_longname ); */
1217 vlc_object_attach( p_module, p_this->p_libvlc_global->p_module_bank );
1222 /*****************************************************************************
1223 * DeleteModule: delete a module and its structure.
1224 *****************************************************************************
1225 * This function can only be called if the module isn't being used.
1226 *****************************************************************************/
1227 static int DeleteModule( module_t * p_module )
1229 vlc_object_detach( p_module );
1231 /* We free the structures that we strdup()ed in Allocate*Module(). */
1232 #ifdef HAVE_DYNAMIC_PLUGINS
1233 if( !p_module->b_builtin )
1235 if( p_module->b_loaded && p_module->b_unloadable )
1237 CloseModule( p_module->handle );
1239 UndupModule( p_module );
1240 free( p_module->psz_filename );
1244 /* Free and detach the object's children */
1245 while( p_module->i_children )
1247 vlc_object_t *p_this = p_module->pp_children[0];
1248 vlc_object_detach( p_this );
1249 vlc_object_destroy( p_this );
1252 config_Free( p_module );
1253 vlc_object_destroy( p_module );
1258 #ifdef HAVE_DYNAMIC_PLUGINS
1259 /*****************************************************************************
1260 * CallEntry: call an entry point.
1261 *****************************************************************************
1262 * This function calls a symbol given its name and a module structure. The
1263 * symbol MUST refer to a function returning int and taking a module_t* as
1265 *****************************************************************************/
1266 static int CallEntry( module_t * p_module )
1268 static const char * const psz_name = "vlc_entry" MODULE_SUFFIX;
1269 int (* pf_symbol) ( module_t * p_module );
1271 /* Try to resolve the symbol */
1272 pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
1274 if( pf_symbol == NULL )
1276 #if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
1277 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
1278 psz_name, p_module->psz_filename );
1279 #elif defined(HAVE_DL_WINDOWS)
1280 char *psz_error = GetWindowsError();
1281 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1282 psz_name, p_module->psz_filename, psz_error );
1284 #elif defined(HAVE_DL_DLOPEN)
1285 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1286 psz_name, p_module->psz_filename, dlerror() );
1287 #elif defined(HAVE_DL_SHL_LOAD)
1288 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1289 psz_name, p_module->psz_filename, strerror(errno) );
1291 # error "Something is wrong in modules.c"
1296 /* We can now try to call the symbol */
1297 if( pf_symbol( p_module ) != 0 )
1299 /* With a well-written module we shouldn't have to print an
1300 * additional error message here, but just make sure. */
1301 msg_Err( p_module, "Failed to call symbol \"%s\" in file `%s'",
1302 psz_name, p_module->psz_filename );
1306 /* Everything worked fine, we can return */
1310 /*****************************************************************************
1311 * LoadModule: loads a dynamic library
1312 *****************************************************************************
1313 * This function loads a dynamically linked library using a system dependant
1314 * method. Will return 0 on success as well as the module handle.
1315 *****************************************************************************/
1316 static int LoadModule( vlc_object_t *p_this, char *psz_file,
1317 module_handle_t *p_handle )
1319 module_handle_t handle;
1321 #if defined(HAVE_DL_DYLD)
1322 NSObjectFileImage image;
1323 NSObjectFileImageReturnCode ret;
1325 ret = NSCreateObjectFileImageFromFile( psz_file, &image );
1327 if( ret != NSObjectFileImageSuccess )
1329 msg_Warn( p_this, "cannot create image from `%s'", psz_file );
1333 /* Open the dynamic module */
1334 handle = NSLinkModule( image, psz_file,
1335 NSLINKMODULE_OPTION_RETURN_ON_ERROR );
1339 NSLinkEditErrors errors;
1340 const char *psz_file, *psz_err;
1342 NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
1343 msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
1344 NSDestroyObjectFileImage( image );
1348 /* Destroy our image, we won't need it */
1349 NSDestroyObjectFileImage( image );
1351 #elif defined(HAVE_DL_BEOS)
1352 handle = load_add_on( psz_file );
1355 msg_Warn( p_this, "cannot load module `%s'", psz_file );
1359 #elif defined(HAVE_DL_WINDOWS)
1362 wchar_t psz_wfile[MAX_PATH];
1363 MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
1364 handle = LoadLibrary( psz_wfile );
1367 handle = LoadLibrary( psz_file );
1369 if( handle == NULL )
1371 char *psz_err = GetWindowsError();
1372 msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
1377 #elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
1378 /* static is OK, we are called atomically */
1380 # if defined(SYS_LINUX)
1381 /* XXX HACK #1 - we should NOT open modules with RTLD_GLOBAL, or we
1382 * are going to get namespace collisions when two modules have common
1383 * public symbols, but ALSA is being a pest here. */
1384 if( strstr( psz_file, "alsa_plugin" ) )
1386 handle = dlopen( psz_file, RTLD_NOW | RTLD_GLOBAL );
1387 if( handle == NULL )
1389 msg_Warn( p_this, "cannot load module `%s' (%s)",
1390 psz_file, dlerror() );
1396 handle = dlopen( psz_file, RTLD_NOW );
1397 if( handle == NULL )
1399 msg_Warn( p_this, "cannot load module `%s' (%s)",
1400 psz_file, dlerror() );
1404 #elif defined(HAVE_DL_DLOPEN)
1405 # if defined(DL_LAZY)
1406 handle = dlopen( psz_file, DL_LAZY );
1408 handle = dlopen( psz_file, 0 );
1410 if( handle == NULL )
1412 msg_Warn( p_this, "cannot load module `%s' (%s)",
1413 psz_file, dlerror() );
1417 #elif defined(HAVE_DL_SHL_LOAD)
1418 handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
1419 if( handle == NULL )
1421 msg_Warn( p_this, "cannot load module `%s' (%s)",
1422 psz_file, strerror(errno) );
1427 # error "Something is wrong in modules.c"
1435 /*****************************************************************************
1436 * CloseModule: unload a dynamic library
1437 *****************************************************************************
1438 * This function unloads a previously opened dynamically linked library
1439 * using a system dependant method. No return value is taken in consideration,
1440 * since some libraries sometimes refuse to close properly.
1441 *****************************************************************************/
1442 static void CloseModule( module_handle_t handle )
1444 #if defined(HAVE_DL_DYLD)
1445 NSUnLinkModule( handle, FALSE );
1447 #elif defined(HAVE_DL_BEOS)
1448 unload_add_on( handle );
1450 #elif defined(HAVE_DL_WINDOWS)
1451 FreeLibrary( handle );
1453 #elif defined(HAVE_DL_DLOPEN)
1456 #elif defined(HAVE_DL_SHL_LOAD)
1457 shl_unload( handle );
1463 /*****************************************************************************
1464 * GetSymbol: get a symbol from a dynamic library
1465 *****************************************************************************
1466 * This function queries a loaded library for a symbol specified in a
1467 * string, and returns a pointer to it. We don't check for dlerror() or
1468 * similar functions, since we want a non-NULL symbol anyway.
1469 *****************************************************************************/
1470 static void * _module_getsymbol( module_handle_t, const char * );
1472 static void * GetSymbol( module_handle_t handle, const char * psz_function )
1474 void * p_symbol = _module_getsymbol( handle, psz_function );
1476 /* MacOS X dl library expects symbols to begin with "_". So do
1477 * some other operating systems. That's really lame, but hey, what
1479 if( p_symbol == NULL )
1481 char *psz_call = malloc( strlen( psz_function ) + 2 );
1483 strcpy( psz_call + 1, psz_function );
1484 psz_call[ 0 ] = '_';
1485 p_symbol = _module_getsymbol( handle, psz_call );
1492 static void * _module_getsymbol( module_handle_t handle,
1493 const char * psz_function )
1495 #if defined(HAVE_DL_DYLD)
1496 NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
1497 return NSAddressOfSymbol( sym );
1499 #elif defined(HAVE_DL_BEOS)
1501 if( B_OK == get_image_symbol( handle, psz_function,
1502 B_SYMBOL_TYPE_TEXT, &p_symbol ) )
1511 #elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
1512 wchar_t psz_real[256];
1513 MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
1515 return (void *)GetProcAddress( handle, psz_real );
1517 #elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
1518 return (void *)GetProcAddress( handle, (char *)psz_function );
1520 #elif defined(HAVE_DL_DLOPEN)
1521 return dlsym( handle, psz_function );
1523 #elif defined(HAVE_DL_SHL_LOAD)
1525 shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
1531 #if defined(HAVE_DL_WINDOWS)
1532 static char * GetWindowsError( void )
1534 #if defined(UNDER_CE)
1535 wchar_t psz_tmp[MAX_PATH];
1536 char * psz_buffer = malloc( MAX_PATH );
1538 char * psz_tmp = malloc( MAX_PATH );
1540 int i = 0, i_error = GetLastError();
1542 FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
1543 NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
1544 (LPTSTR)psz_tmp, MAX_PATH, NULL );
1546 /* Go to the end of the string */
1547 while( psz_tmp[i] && psz_tmp[i] != _T('\r') && psz_tmp[i] != _T('\n') )
1554 #if defined(UNDER_CE)
1555 swprintf( psz_tmp + i, L" (error %i)", i_error );
1556 psz_tmp[ 255 ] = L'\0';
1558 snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
1559 psz_tmp[ 255 ] = '\0';
1563 #if defined(UNDER_CE)
1564 wcstombs( psz_buffer, psz_tmp, MAX_PATH );
1570 #endif /* HAVE_DL_WINDOWS */
1572 /*****************************************************************************
1573 * LoadPluginsCache: loads the plugins cache file
1574 *****************************************************************************
1575 * This function will load the plugin cache if present and valid. This cache
1576 * will in turn be queried by AllocateAllPlugins() to see if it needs to
1577 * actually load the dynamically loadable module.
1578 * This allows us to only fully load plugins when they are actually used.
1579 *****************************************************************************/
1580 static void CacheLoad( vlc_object_t *p_this )
1582 char *psz_filename, *psz_homedir;
1584 int i, j, i_size, i_read;
1585 char p_cachestring[sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE)];
1586 char p_cachelang[6], p_lang[6];
1588 module_cache_t **pp_cache = 0;
1589 int32_t i_file_size, i_marker;
1591 psz_homedir = p_this->p_libvlc->psz_homedir;
1594 msg_Err( p_this, "psz_homedir is null" );
1598 i_size = asprintf( &psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1599 PLUGINSCACHE_DIR, CacheName() );
1602 msg_Err( p_this, "out of memory" );
1606 if( p_this->p_libvlc_global->p_module_bank->b_cache_delete )
1608 #if !defined( UNDER_CE )
1609 unlink( psz_filename );
1611 wchar_t psz_wf[MAX_PATH];
1612 MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
1613 DeleteFile( psz_wf );
1615 msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
1616 free( psz_filename );
1620 msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
1622 file = utf8_fopen( psz_filename, "rb" );
1625 msg_Warn( p_this, "could not open plugins cache file %s for reading",
1627 free( psz_filename );
1630 free( psz_filename );
1632 /* Check the file size */
1633 i_read = fread( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1634 if( i_read != sizeof(i_file_size) )
1636 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1642 fseek( file, 0, SEEK_END );
1643 if( ftell( file ) != i_file_size )
1645 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1646 "(corrupted size)" );
1650 fseek( file, sizeof(i_file_size), SEEK_SET );
1652 /* Check the file is a plugins cache */
1653 i_size = sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE) - 1;
1654 i_read = fread( p_cachestring, sizeof(char), i_size, file );
1655 if( i_read != i_size ||
1656 memcmp( p_cachestring, PLUGINSCACHE_DIR COPYRIGHT_MESSAGE, i_size ) )
1658 msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
1663 /* Check Sub-version number */
1664 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1665 if( i_read != sizeof(i_marker) || i_marker != CACHE_SUBVERSION_NUM )
1667 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1668 "(corrupted header)" );
1673 /* Check the language hasn't changed */
1674 sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
1675 i_read = fread( p_cachelang, sizeof(char), i_size, file );
1676 if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
1678 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1679 "(language changed)" );
1684 /* Check header marker */
1685 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1686 if( i_read != sizeof(i_marker) ||
1687 i_marker != ftell( file ) - (int)sizeof(i_marker) )
1689 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1690 "(corrupted header)" );
1695 p_this->p_libvlc_global->p_module_bank->i_loaded_cache = 0;
1696 fread( &i_cache, sizeof(char), sizeof(i_cache), file );
1698 pp_cache = p_this->p_libvlc_global->p_module_bank->pp_loaded_cache =
1699 malloc( i_cache * sizeof(void *) );
1701 #define LOAD_IMMEDIATE(a) \
1702 if( fread( (void *)&a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
1703 #define LOAD_STRING(a) \
1706 if( ( fread( &i_size, sizeof(i_size), 1, file ) != 1 ) \
1707 || ( i_size > 16384 ) ) \
1710 char *psz = malloc( i_size ); \
1711 if( fread( psz, i_size, 1, file ) != 1 ) { \
1715 if( psz[i_size-1] ) { \
1723 for( i = 0; i < i_cache; i++ )
1728 pp_cache[i] = malloc( sizeof(module_cache_t) );
1729 p_this->p_libvlc_global->p_module_bank->i_loaded_cache++;
1731 /* Load common info */
1732 LOAD_STRING( pp_cache[i]->psz_file );
1733 LOAD_IMMEDIATE( pp_cache[i]->i_time );
1734 LOAD_IMMEDIATE( pp_cache[i]->i_size );
1735 LOAD_IMMEDIATE( pp_cache[i]->b_junk );
1737 if( pp_cache[i]->b_junk ) continue;
1739 pp_cache[i]->p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1741 /* Load additional infos */
1742 LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
1743 LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
1744 LOAD_STRING( pp_cache[i]->p_module->psz_longname );
1745 LOAD_STRING( pp_cache[i]->p_module->psz_program );
1746 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1748 LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
1750 LOAD_STRING( pp_cache[i]->p_module->psz_capability );
1751 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
1752 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
1753 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
1754 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
1755 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
1758 if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
1761 LOAD_STRING( pp_cache[i]->p_module->psz_filename );
1763 LOAD_IMMEDIATE( i_submodules );
1765 while( i_submodules-- )
1767 module_t *p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE);
1768 vlc_object_attach( p_module, pp_cache[i]->p_module );
1769 p_module->b_submodule = VLC_TRUE;
1771 LOAD_STRING( p_module->psz_object_name );
1772 LOAD_STRING( p_module->psz_shortname );
1773 LOAD_STRING( p_module->psz_longname );
1774 LOAD_STRING( p_module->psz_program );
1775 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1777 LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
1779 LOAD_STRING( p_module->psz_capability );
1780 LOAD_IMMEDIATE( p_module->i_score );
1781 LOAD_IMMEDIATE( p_module->i_cpu );
1782 LOAD_IMMEDIATE( p_module->b_unloadable );
1783 LOAD_IMMEDIATE( p_module->b_reentrant );
1792 msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
1795 p_this->p_libvlc_global->p_module_bank->i_loaded_cache = 0;
1802 int CacheLoadConfig( module_t *p_module, FILE *file )
1807 /* Calculate the structure length */
1808 LOAD_IMMEDIATE( p_module->i_config_items );
1809 LOAD_IMMEDIATE( p_module->i_bool_items );
1811 LOAD_IMMEDIATE( i_lines );
1813 /* Allocate memory */
1816 p_module->p_config =
1817 (module_config_t *)calloc( i_lines, sizeof(module_config_t) );
1818 if( p_module->p_config == NULL )
1820 p_module->confsize = 0;
1821 msg_Err( p_module, "config error: can't duplicate p_config" );
1825 p_module->confsize = i_lines;
1827 /* Do the duplication job */
1828 for (size_t i = 0; i < i_lines; i++ )
1830 LOAD_IMMEDIATE( p_module->p_config[i] );
1832 LOAD_STRING( p_module->p_config[i].psz_type );
1833 LOAD_STRING( p_module->p_config[i].psz_name );
1834 LOAD_STRING( p_module->p_config[i].psz_text );
1835 LOAD_STRING( p_module->p_config[i].psz_longtext );
1836 LOAD_STRING( p_module->p_config[i].psz_current );
1838 if (IsConfigStringType (p_module->p_config[i].i_type))
1840 LOAD_STRING (p_module->p_config[i].orig.psz);
1841 p_module->p_config[i].value.psz =
1842 (p_module->p_config[i].orig.psz != NULL)
1843 ? strdup (p_module->p_config[i].orig.psz) : NULL;
1844 p_module->p_config[i].saved.psz = NULL;
1848 memcpy (&p_module->p_config[i].value, &p_module->p_config[i].orig,
1849 sizeof (p_module->p_config[i].value));
1850 memcpy (&p_module->p_config[i].saved, &p_module->p_config[i].orig,
1851 sizeof (p_module->p_config[i].saved));
1854 p_module->p_config[i].b_dirty = VLC_FALSE;
1856 p_module->p_config[i].p_lock = &p_module->object_lock;
1858 if( p_module->p_config[i].i_list )
1860 if( p_module->p_config[i].ppsz_list )
1863 p_module->p_config[i].ppsz_list =
1864 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1865 if( p_module->p_config[i].ppsz_list )
1867 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1868 LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
1869 p_module->p_config[i].ppsz_list[j] = NULL;
1872 if( p_module->p_config[i].ppsz_list_text )
1875 p_module->p_config[i].ppsz_list_text =
1876 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1877 if( p_module->p_config[i].ppsz_list_text )
1879 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1880 LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
1881 p_module->p_config[i].ppsz_list_text[j] = NULL;
1884 if( p_module->p_config[i].pi_list )
1886 p_module->p_config[i].pi_list =
1887 malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
1888 if( p_module->p_config[i].pi_list )
1890 for (int j = 0; j < p_module->p_config[i].i_list; j++)
1891 LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
1896 if( p_module->p_config[i].i_action )
1898 p_module->p_config[i].ppf_action =
1899 malloc( p_module->p_config[i].i_action * sizeof(void *) );
1900 p_module->p_config[i].ppsz_action_text =
1901 malloc( p_module->p_config[i].i_action * sizeof(char *) );
1903 for (int j = 0; j < p_module->p_config[i].i_action; j++)
1905 p_module->p_config[i].ppf_action[j] = 0;
1906 LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
1910 LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
1917 return VLC_EGENERIC;
1920 /*****************************************************************************
1921 * SavePluginsCache: saves the plugins cache to a file
1922 *****************************************************************************/
1923 static void CacheSave( vlc_object_t *p_this )
1925 static char const psz_tag[] =
1926 "Signature: 8a477f597d28d172789f06886806bc55\r\n"
1927 "# This file is a cache directory tag created by VLC.\r\n"
1928 "# For information about cache directory tags, see:\r\n"
1929 "# http://www.brynosaurus.com/cachedir/\r\n";
1931 char *psz_filename, *psz_homedir;
1934 module_cache_t **pp_cache;
1935 int32_t i_file_size = 0;
1937 psz_homedir = p_this->p_libvlc->psz_homedir;
1940 msg_Err( p_this, "psz_homedir is null" );
1944 (char *)malloc( sizeof("/" CONFIG_DIR "/" PLUGINSCACHE_DIR "/" ) +
1945 strlen(psz_homedir) + strlen(CacheName()) );
1949 msg_Err( p_this, "out of memory" );
1953 sprintf( psz_filename, "%s/%s", psz_homedir, CONFIG_DIR );
1955 config_CreateDir( p_this, psz_filename );
1957 strcat( psz_filename, "/" PLUGINSCACHE_DIR );
1959 config_CreateDir( p_this, psz_filename );
1961 strcat( psz_filename, "/CACHEDIR.TAG" );
1963 file = utf8_fopen( psz_filename, "wb" );
1966 fwrite( psz_tag, 1, strlen(psz_tag), file );
1970 sprintf( psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1971 PLUGINSCACHE_DIR, CacheName() );
1973 msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
1975 file = utf8_fopen( psz_filename, "wb" );
1978 msg_Warn( p_this, "could not open plugins cache file %s for writing",
1980 free( psz_filename );
1983 free( psz_filename );
1985 /* Empty space for file size */
1986 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1988 /* Contains version number */
1989 fprintf( file, "%s", PLUGINSCACHE_DIR COPYRIGHT_MESSAGE );
1991 /* Sub-version number (to avoid breakage in the dev version when cache
1992 * structure changes) */
1993 i_file_size = CACHE_SUBVERSION_NUM;
1994 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1997 fprintf( file, "%5.5s", _("C") );
2000 i_file_size = ftell( file );
2001 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2003 i_cache = p_this->p_libvlc_global->p_module_bank->i_cache;
2004 pp_cache = p_this->p_libvlc_global->p_module_bank->pp_cache;
2006 fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
2008 #define SAVE_IMMEDIATE(a) \
2009 fwrite( &a, sizeof(char), sizeof(a), file )
2010 #define SAVE_STRING(a) \
2011 { i_size = a ? strlen( a ) + 1 : 0; \
2012 fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
2013 if( a ) fwrite( a, sizeof(char), i_size, file ); \
2016 for( i = 0; i < i_cache; i++ )
2019 uint32_t i_submodule;
2021 /* Save common info */
2022 SAVE_STRING( pp_cache[i]->psz_file );
2023 SAVE_IMMEDIATE( pp_cache[i]->i_time );
2024 SAVE_IMMEDIATE( pp_cache[i]->i_size );
2025 SAVE_IMMEDIATE( pp_cache[i]->b_junk );
2027 if( pp_cache[i]->b_junk ) continue;
2029 /* Save additional infos */
2030 SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
2031 SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
2032 SAVE_STRING( pp_cache[i]->p_module->psz_longname );
2033 SAVE_STRING( pp_cache[i]->p_module->psz_program );
2034 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2036 SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
2038 SAVE_STRING( pp_cache[i]->p_module->psz_capability );
2039 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
2040 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
2041 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
2042 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
2043 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
2046 CacheSaveConfig( pp_cache[i]->p_module, file );
2048 SAVE_STRING( pp_cache[i]->p_module->psz_filename );
2050 i_submodule = pp_cache[i]->p_module->i_children;
2051 SAVE_IMMEDIATE( i_submodule );
2052 for( i_submodule = 0;
2053 i_submodule < (unsigned)pp_cache[i]->p_module->i_children;
2056 module_t *p_module =
2057 (module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
2059 SAVE_STRING( p_module->psz_object_name );
2060 SAVE_STRING( p_module->psz_shortname );
2061 SAVE_STRING( p_module->psz_longname );
2062 SAVE_STRING( p_module->psz_program );
2063 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2065 SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
2067 SAVE_STRING( p_module->psz_capability );
2068 SAVE_IMMEDIATE( p_module->i_score );
2069 SAVE_IMMEDIATE( p_module->i_cpu );
2070 SAVE_IMMEDIATE( p_module->b_unloadable );
2071 SAVE_IMMEDIATE( p_module->b_reentrant );
2075 /* Fill-up file size */
2076 i_file_size = ftell( file );
2077 fseek( file, 0, SEEK_SET );
2078 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2085 void CacheSaveConfig( module_t *p_module, FILE *file )
2087 uint32_t i_lines = p_module->confsize;
2090 SAVE_IMMEDIATE( p_module->i_config_items );
2091 SAVE_IMMEDIATE( p_module->i_bool_items );
2092 SAVE_IMMEDIATE( i_lines );
2094 for (size_t i = 0; i < i_lines ; i++)
2096 SAVE_IMMEDIATE( p_module->p_config[i] );
2098 SAVE_STRING( p_module->p_config[i].psz_type );
2099 SAVE_STRING( p_module->p_config[i].psz_name );
2100 SAVE_STRING( p_module->p_config[i].psz_text );
2101 SAVE_STRING( p_module->p_config[i].psz_longtext );
2102 SAVE_STRING( p_module->p_config[i].psz_current );
2103 if (IsConfigStringType (p_module->p_config[i].i_type))
2104 SAVE_STRING( p_module->p_config[i].orig.psz );
2106 if( p_module->p_config[i].i_list )
2108 if( p_module->p_config[i].ppsz_list )
2110 for (int j = 0; j < p_module->p_config[i].i_list; j++)
2111 SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
2114 if( p_module->p_config[i].ppsz_list_text )
2116 for (int j = 0; j < p_module->p_config[i].i_list; j++)
2117 SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
2119 if( p_module->p_config[i].pi_list )
2121 for (int j = 0; j < p_module->p_config[i].i_list; j++)
2122 SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
2126 for (int j = 0; j < p_module->p_config[i].i_action; j++)
2127 SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
2129 SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
2133 /*****************************************************************************
2134 * CacheName: Return the cache file name for this platform.
2135 *****************************************************************************/
2136 static char *CacheName( void )
2138 static char psz_cachename[32];
2140 /* Code int size, pointer size and endianness in the filename */
2141 int32_t x = 0xbe00001e;
2142 sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", (int)sizeof(int),
2143 (int)sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
2144 return psz_cachename;
2147 /*****************************************************************************
2148 * CacheMerge: Merge a cache module descriptor with a full module descriptor.
2149 *****************************************************************************/
2150 static void CacheMerge( vlc_object_t *p_this, module_t *p_cache,
2151 module_t *p_module )
2155 p_cache->pf_activate = p_module->pf_activate;
2156 p_cache->pf_deactivate = p_module->pf_deactivate;
2157 #ifndef HAVE_SHARED_LIBVLC
2158 p_cache->p_symbols = p_module->p_symbols;
2160 p_cache->handle = p_module->handle;
2162 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
2164 module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
2165 module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
2166 p_cchild->pf_activate = p_child->pf_activate;
2167 p_cchild->pf_deactivate = p_child->pf_deactivate;
2168 #ifndef HAVE_SHARED_LIBVLC
2169 p_cchild->p_symbols = p_child->p_symbols;
2173 p_cache->b_loaded = VLC_TRUE;
2174 p_module->b_loaded = VLC_FALSE;
2177 /*****************************************************************************
2178 * FindPluginCache: finds the cache entry corresponding to a file
2179 *****************************************************************************/
2180 static module_cache_t *CacheFind( vlc_object_t *p_this, char *psz_file,
2181 int64_t i_time, int64_t i_size )
2183 module_cache_t **pp_cache;
2186 pp_cache = p_this->p_libvlc_global->p_module_bank->pp_loaded_cache;
2187 i_cache = p_this->p_libvlc_global->p_module_bank->i_loaded_cache;
2189 for( i = 0; i < i_cache; i++ )
2191 if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
2192 pp_cache[i]->i_time == i_time &&
2193 pp_cache[i]->i_size == i_size ) return pp_cache[i];
2199 #endif /* HAVE_DYNAMIC_PLUGINS */