1 /*****************************************************************************
2 * modules.c : Builtin and plugin modules management functions
3 *****************************************************************************
4 * Copyright (C) 2001-2004 VideoLAN
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
25 *****************************************************************************/
27 /* Some faulty libcs have a broken struct dirent when _FILE_OFFSET_BITS
28 * is set to 64. Don't try to be cleverer. */
29 #ifdef _FILE_OFFSET_BITS
30 #undef _FILE_OFFSET_BITS
33 #include <stdlib.h> /* free(), strtol() */
34 #include <stdio.h> /* sprintf() */
35 #include <string.h> /* strdup() */
38 #include <vlc/input.h>
44 #ifdef HAVE_SYS_TYPES_H
45 # include <sys/types.h>
47 #ifdef HAVE_SYS_STAT_H
48 # include <sys/stat.h>
54 #define HAVE_DYNAMIC_PLUGINS
55 #if 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)
77 # undef HAVE_DYNAMIC_PLUGINS
80 #include "vlc_error.h"
82 #include "vlc_interface.h"
83 #include "intf_eject.h"
85 #include "vlc_playlist.h"
87 #include "vlc_video.h"
88 #include "video_output.h"
89 #include "vout_synchro.h"
92 #include "audio_output.h"
93 #include "aout_internal.h"
95 #include "stream_output.h"
97 #include "vlc_httpd.h"
101 #include "iso_lang.h"
104 #include "vlc_block.h"
108 #include "vlc_image.h"
110 #ifdef HAVE_DYNAMIC_PLUGINS
111 # include "modules_plugin.h"
114 #if defined( _MSC_VER ) && defined( UNDER_CE )
115 # include "modules_builtin_evc.h"
116 #elif defined( _MSC_VER )
117 # include "modules_builtin_msvc.h"
119 # include "modules_builtin.h"
123 #if defined( WIN32 ) || defined( UNDER_CE )
124 /* Avoid name collisions */
125 # define LoadModule(a,b,c) _LoadModule(a,b,c)
128 /*****************************************************************************
130 *****************************************************************************/
131 #ifdef HAVE_DYNAMIC_PLUGINS
132 static void AllocateAllPlugins ( vlc_object_t * );
133 static void AllocatePluginDir ( vlc_object_t *, const char *, int );
134 static int AllocatePluginFile ( vlc_object_t *, char *, int64_t, int64_t );
135 static module_t * AllocatePlugin( vlc_object_t *, char * );
137 static int AllocateBuiltinModule( vlc_object_t *, int ( * ) ( module_t * ) );
138 static int DeleteModule ( module_t * );
139 #ifdef HAVE_DYNAMIC_PLUGINS
140 static void DupModule ( module_t * );
141 static void UndupModule ( module_t * );
142 static int CallEntry ( module_t * );
143 static int LoadModule ( vlc_object_t *, char *, module_handle_t * );
144 static void CloseModule ( module_handle_t );
145 static void * GetSymbol ( module_handle_t, const char * );
146 static void CacheLoad ( vlc_object_t * );
147 static int CacheLoadConfig ( module_t *, FILE * );
148 static void CacheSave ( vlc_object_t * );
149 static void CacheSaveConfig ( module_t *, FILE * );
150 static char * CacheName ( void );
151 static void CacheMerge ( vlc_object_t *, module_t *, module_t * );
152 static module_cache_t * CacheFind( vlc_object_t *, char *, int64_t, int64_t );
154 #if defined(HAVE_DL_WINDOWS)
155 static char * GetWindowsError ( void );
159 /*****************************************************************************
160 * module_InitBank: create the module bank.
161 *****************************************************************************
162 * This function creates a module bank structure which will be filled later
163 * on with all the modules found.
164 *****************************************************************************/
165 void __module_InitBank( vlc_object_t *p_this )
167 module_bank_t *p_bank;
170 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
171 var_Get( p_this->p_libvlc, "libvlc", &lockval );
172 vlc_mutex_lock( lockval.p_address );
173 if( p_this->p_libvlc->p_module_bank )
175 p_this->p_libvlc->p_module_bank->i_usage++;
176 vlc_mutex_unlock( lockval.p_address );
177 var_Destroy( p_this->p_libvlc, "libvlc" );
180 vlc_mutex_unlock( lockval.p_address );
181 var_Destroy( p_this->p_libvlc, "libvlc" );
183 p_bank = vlc_object_create( p_this, sizeof(module_bank_t) );
184 p_bank->psz_object_name = "module bank";
186 p_bank->i_cache = p_bank->i_loaded_cache = 0;
187 p_bank->pp_cache = p_bank->pp_loaded_cache = 0;
188 p_bank->b_cache = p_bank->b_cache_dirty =
189 p_bank->b_cache_delete = VLC_FALSE;
192 * Store the symbols to be exported
194 #ifdef HAVE_DYNAMIC_PLUGINS
195 STORE_SYMBOLS( &p_bank->symbols );
198 /* Everything worked, attach the object */
199 p_this->p_libvlc->p_module_bank = p_bank;
200 vlc_object_attach( p_bank, p_this->p_libvlc );
202 module_LoadMain( p_this );
207 /*****************************************************************************
208 * module_ResetBank: reset the module bank.
209 *****************************************************************************
210 * This function resets the module bank by unloading all unused plugin
212 *****************************************************************************/
213 void __module_ResetBank( vlc_object_t *p_this )
215 msg_Err( p_this, "FIXME: module_ResetBank unimplemented" );
219 /*****************************************************************************
220 * module_EndBank: empty the module bank.
221 *****************************************************************************
222 * This function unloads all unused plugin modules and empties the module
223 * bank in case of success.
224 *****************************************************************************/
225 void __module_EndBank( vlc_object_t *p_this )
230 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
231 var_Get( p_this->p_libvlc, "libvlc", &lockval );
232 vlc_mutex_lock( lockval.p_address );
233 if( !p_this->p_libvlc->p_module_bank )
235 vlc_mutex_unlock( lockval.p_address );
236 var_Destroy( p_this->p_libvlc, "libvlc" );
239 if( --p_this->p_libvlc->p_module_bank->i_usage )
241 vlc_mutex_unlock( lockval.p_address );
242 var_Destroy( p_this->p_libvlc, "libvlc" );
245 vlc_mutex_unlock( lockval.p_address );
246 var_Destroy( p_this->p_libvlc, "libvlc" );
248 #ifdef HAVE_DYNAMIC_PLUGINS
249 #define p_bank p_this->p_libvlc->p_module_bank
250 if( p_bank->b_cache ) CacheSave( p_this );
251 while( p_bank->i_loaded_cache-- )
253 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->psz_file );
254 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache] );
255 if( !p_bank->i_loaded_cache ) free( p_bank->pp_loaded_cache );
257 while( p_bank->i_cache-- )
259 free( p_bank->pp_cache[p_bank->i_cache]->psz_file );
260 free( p_bank->pp_cache[p_bank->i_cache] );
261 if( !p_bank->i_cache ) free( p_bank->pp_cache );
266 vlc_object_detach( p_this->p_libvlc->p_module_bank );
268 while( p_this->p_libvlc->p_module_bank->i_children )
270 p_next = (module_t *)p_this->p_libvlc->p_module_bank->pp_children[0];
272 if( DeleteModule( p_next ) )
274 /* Module deletion failed */
275 msg_Err( p_this, "module \"%s\" can't be removed, trying harder",
276 p_next->psz_object_name );
278 /* We just free the module by hand. Niahahahahaha. */
279 vlc_object_detach( p_next );
280 vlc_object_destroy( p_next );
284 vlc_object_destroy( p_this->p_libvlc->p_module_bank );
285 p_this->p_libvlc->p_module_bank = NULL;
290 /*****************************************************************************
291 * module_LoadMain: load the main program info into the module bank.
292 *****************************************************************************
293 * This function fills the module bank structure with the main module infos.
294 * This is very useful as it will allow us to consider the main program just
295 * as another module, and for instance the configuration options of main will
296 * be available in the module bank structure just as for every other module.
297 *****************************************************************************/
298 void __module_LoadMain( vlc_object_t *p_this )
302 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
303 var_Get( p_this->p_libvlc, "libvlc", &lockval );
304 vlc_mutex_lock( lockval.p_address );
305 if( p_this->p_libvlc->p_module_bank->b_main )
307 vlc_mutex_unlock( lockval.p_address );
308 var_Destroy( p_this->p_libvlc, "libvlc" );
311 p_this->p_libvlc->p_module_bank->b_main = VLC_TRUE;
312 vlc_mutex_unlock( lockval.p_address );
313 var_Destroy( p_this->p_libvlc, "libvlc" );
315 AllocateBuiltinModule( p_this, vlc_entry__main );
318 /*****************************************************************************
319 * module_LoadBuiltins: load all modules which we built with.
320 *****************************************************************************
321 * This function fills the module bank structure with the builtin modules.
322 *****************************************************************************/
323 void __module_LoadBuiltins( vlc_object_t * p_this )
327 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
328 var_Get( p_this->p_libvlc, "libvlc", &lockval );
329 vlc_mutex_lock( lockval.p_address );
330 if( p_this->p_libvlc->p_module_bank->b_builtins )
332 vlc_mutex_unlock( lockval.p_address );
333 var_Destroy( p_this->p_libvlc, "libvlc" );
336 p_this->p_libvlc->p_module_bank->b_builtins = VLC_TRUE;
337 vlc_mutex_unlock( lockval.p_address );
338 var_Destroy( p_this->p_libvlc, "libvlc" );
340 msg_Dbg( p_this, "checking builtin modules" );
341 ALLOCATE_ALL_BUILTINS();
344 /*****************************************************************************
345 * module_LoadPlugins: load all plugin modules we can find.
346 *****************************************************************************
347 * This function fills the module bank structure with the plugin modules.
348 *****************************************************************************/
349 void __module_LoadPlugins( vlc_object_t * p_this )
351 #ifdef HAVE_DYNAMIC_PLUGINS
354 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
355 var_Get( p_this->p_libvlc, "libvlc", &lockval );
356 vlc_mutex_lock( lockval.p_address );
357 if( p_this->p_libvlc->p_module_bank->b_plugins )
359 vlc_mutex_unlock( lockval.p_address );
360 var_Destroy( p_this->p_libvlc, "libvlc" );
363 p_this->p_libvlc->p_module_bank->b_plugins = VLC_TRUE;
364 vlc_mutex_unlock( lockval.p_address );
365 var_Destroy( p_this->p_libvlc, "libvlc" );
367 msg_Dbg( p_this, "checking plugin modules" );
369 if( config_GetInt( p_this, "plugins-cache" ) )
370 p_this->p_libvlc->p_module_bank->b_cache = VLC_TRUE;
372 if( p_this->p_libvlc->p_module_bank->b_cache ||
373 p_this->p_libvlc->p_module_bank->b_cache_delete ) CacheLoad( p_this );
375 AllocateAllPlugins( p_this );
379 /*****************************************************************************
380 * module_Need: return the best module function, given a capability list.
381 *****************************************************************************
382 * This function returns the module that best fits the asked capabilities.
383 *****************************************************************************/
384 module_t * __module_Need( vlc_object_t *p_this, const char *psz_capability,
385 const char *psz_name, vlc_bool_t b_strict )
387 typedef struct module_list_t module_list_t;
394 module_list_t *p_next;
397 module_list_t *p_list, *p_first, *p_tmp;
400 int i_which_module, i_index = 0;
401 vlc_bool_t b_intf = VLC_FALSE;
406 char *psz_shortcuts = NULL, *psz_var = NULL;
407 vlc_bool_t b_force_backup = p_this->b_force;
409 msg_Dbg( p_this, "looking for %s module", psz_capability );
411 /* Deal with variables */
412 if( psz_name && psz_name[0] == '$' )
415 var_Create( p_this, psz_name + 1, VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
416 var_Get( p_this, psz_name + 1, &val );
417 psz_var = val.psz_string;
421 /* Count how many different shortcuts were asked for */
422 if( psz_name && *psz_name )
424 char *psz_parser, *psz_last_shortcut;
426 /* If the user wants none, give him none. */
427 if( !strcmp( psz_name, "none" ) )
429 if( psz_var ) free( psz_var );
434 psz_shortcuts = psz_last_shortcut = strdup( psz_name );
436 for( psz_parser = psz_shortcuts; *psz_parser; psz_parser++ )
438 if( *psz_parser == ',' )
442 psz_last_shortcut = psz_parser + 1;
446 /* Check if the user wants to override the "strict" mode */
447 if( psz_last_shortcut )
449 if( !strcmp(psz_last_shortcut, "none") )
454 else if( !strcmp(psz_last_shortcut, "any") )
456 b_strict = VLC_FALSE;
462 /* Sort the modules and test them */
463 p_all = vlc_list_find( p_this, VLC_OBJECT_MODULE, FIND_ANYWHERE );
464 p_list = malloc( p_all->i_count * sizeof( module_list_t ) );
467 /* Parse the module list for capabilities and probe each of them */
468 for( i_which_module = 0; i_which_module < p_all->i_count; i_which_module++ )
470 int i_shortcut_bonus = 0;
472 p_module = (module_t *)p_all->p_values[i_which_module].p_object;
474 /* Test that this module can do what we need */
475 if( strcmp( p_module->psz_capability, psz_capability ) )
477 /* Don't recurse through the sub-modules because vlc_list_find()
478 * will list them anyway. */
482 /* Test if we have the required CPU */
483 if( (p_module->i_cpu & p_this->p_libvlc->i_cpu) != p_module->i_cpu )
488 /* If we required a shortcut, check this plugin provides it. */
489 if( i_shortcuts > 0 )
492 int i_dummy, i_short = i_shortcuts;
493 char *psz_name = psz_shortcuts;
495 /* Let's drop modules with a <= 0 score (unless they are
496 * explicitly requested) */
497 b_trash = p_module->i_score <= 0;
501 for( i_dummy = 0; p_module->pp_shortcuts[i_dummy]; i_dummy++ )
503 if( !strcasecmp( psz_name,
504 p_module->pp_shortcuts[i_dummy] ) )
508 i_shortcut_bonus = i_short * 10000;
513 if( i_shortcut_bonus )
515 /* We found it... remember ? */
519 /* Go to the next shortcut... This is so lame! */
528 /* If we are in "strict" mode and we couldn't
529 * find the module in the list of provided shortcuts,
530 * then kick the bastard out of here!!! */
531 if( i_short == 0 && b_strict )
541 /* If we didn't require a shortcut, trash <= 0 scored plugins */
542 else if( p_module->i_score <= 0 )
547 /* Special case: test if we requested a particular intf plugin */
548 if( !i_shortcuts && p_module->psz_program
549 && !strcmp( psz_capability, "interface" )
550 && !strcmp( p_module->psz_program,
551 p_this->p_vlc->psz_object_name ) )
555 /* Remove previous non-matching plugins */
562 /* This one doesn't match */
566 /* Store this new module */
567 p_list[ i_index ].p_module = p_module;
568 p_list[ i_index ].i_score = p_module->i_score + i_shortcut_bonus;
569 p_list[ i_index ].b_force = !!i_shortcut_bonus;
571 /* Add it to the modules-to-probe list */
574 p_list[ 0 ].p_next = NULL;
579 /* Ok, so at school you learned that quicksort is quick, and
580 * bubble sort sucks raw eggs. But that's when dealing with
581 * thousands of items. Here we have barely 50. */
582 module_list_t *p_newlist = p_first;
584 if( p_first->i_score < p_list[ i_index ].i_score )
586 p_list[ i_index ].p_next = p_first;
587 p_first = &p_list[ i_index ];
591 while( p_newlist->p_next != NULL &&
592 p_newlist->p_next->i_score >= p_list[ i_index ].i_score )
594 p_newlist = p_newlist->p_next;
597 p_list[ i_index ].p_next = p_newlist->p_next;
598 p_newlist->p_next = &p_list[ i_index ];
605 msg_Dbg( p_this, "probing %i candidate%s",
606 i_index, i_index == 1 ? "" : "s" );
608 /* Lock all candidate modules */
610 while( p_tmp != NULL )
612 vlc_object_yield( p_tmp->p_module );
613 p_tmp = p_tmp->p_next;
616 /* We can release the list, interesting modules were yielded */
617 vlc_list_release( p_all );
619 /* Parse the linked list and use the first successful module */
621 while( p_tmp != NULL )
623 #ifdef HAVE_DYNAMIC_PLUGINS
624 /* Make sure the module is loaded in mem */
625 module_t *p_module = p_tmp->p_module->b_submodule ?
626 (module_t *)p_tmp->p_module->p_parent : p_tmp->p_module;
627 if( !p_module->b_builtin && !p_module->b_loaded )
629 module_t *p_new_module =
630 AllocatePlugin( p_this, p_module->psz_filename );
633 CacheMerge( p_this, p_module, p_new_module );
634 vlc_object_attach( p_new_module, p_module );
635 DeleteModule( p_new_module );
640 p_this->b_force = p_tmp->b_force;
641 if( p_tmp->p_module->pf_activate
642 && p_tmp->p_module->pf_activate( p_this ) == VLC_SUCCESS )
647 vlc_object_release( p_tmp->p_module );
648 p_tmp = p_tmp->p_next;
651 /* Store the locked module value */
654 p_module = p_tmp->p_module;
655 p_tmp = p_tmp->p_next;
662 /* Unlock the remaining modules */
663 while( p_tmp != NULL )
665 vlc_object_release( p_tmp->p_module );
666 p_tmp = p_tmp->p_next;
670 p_this->b_force = b_force_backup;
672 if( p_module != NULL )
674 msg_Dbg( p_module, "using %s module \"%s\"",
675 psz_capability, p_module->psz_object_name );
677 else if( p_first == NULL )
679 if( !strcmp( psz_capability, "access_demux" ) )
681 msg_Warn( p_this, "no %s module matched \"%s\"",
682 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
686 msg_Err( p_this, "no %s module matched \"%s\"",
687 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
690 else if( psz_name != NULL && *psz_name )
692 msg_Warn( p_this, "no %s module matching \"%s\" could be loaded",
693 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
698 free( psz_shortcuts );
706 /* Don't forget that the module is still locked */
710 /*****************************************************************************
711 * module_Unneed: decrease the usage count of a module.
712 *****************************************************************************
713 * This function must be called by the thread that called module_Need, to
714 * decrease the reference count and allow for hiding of modules.
715 *****************************************************************************/
716 void __module_Unneed( vlc_object_t * p_this, module_t * p_module )
718 /* Use the close method */
719 if( p_module->pf_deactivate )
721 p_module->pf_deactivate( p_this );
724 msg_Dbg( p_module, "unlocking module \"%s\"", p_module->psz_object_name );
726 vlc_object_release( p_module );
731 /*****************************************************************************
732 * Following functions are local.
733 *****************************************************************************/
735 /*****************************************************************************
736 * AllocateAllPlugins: load all plugin modules we can find.
737 *****************************************************************************/
738 #ifdef HAVE_DYNAMIC_PLUGINS
739 static void AllocateAllPlugins( vlc_object_t *p_this )
741 /* Yes, there are two NULLs because we replace one with "plugin-path". */
742 #if defined( WIN32 ) || defined( UNDER_CE )
743 char *path[] = { "modules", "", "plugins", 0, 0 };
745 char *path[] = { "modules", PLUGIN_PATH, "plugins", 0, 0 };
748 char **ppsz_path = path;
751 /* If the user provided a plugin path, we add it to the list */
752 path[ sizeof(path)/sizeof(char*) - 2 ] =
753 config_GetPsz( p_this, "plugin-path" );
755 for( ; *ppsz_path != NULL ; ppsz_path++ )
757 if( !(*ppsz_path)[0] ) continue;
759 #if defined( SYS_BEOS ) || defined( SYS_DARWIN ) || defined( WIN32 )
761 /* Handle relative as well as absolute paths */
763 if( (*ppsz_path)[0] != '\\' && (*ppsz_path)[0] != '/' &&
764 (*ppsz_path)[1] != ':' )
766 if( (*ppsz_path)[0] != '/' )
769 int i_dirlen = strlen( *ppsz_path );
770 i_dirlen += strlen( p_this->p_libvlc->psz_vlcpath ) + 2;
772 psz_fullpath = malloc( i_dirlen );
773 if( psz_fullpath == NULL )
778 sprintf( psz_fullpath, "%s\\%s",
779 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
781 sprintf( psz_fullpath, "%s/%s",
782 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
788 psz_fullpath = strdup( *ppsz_path );
791 msg_Dbg( p_this, "recursively browsing `%s'", psz_fullpath );
793 /* Don't go deeper than 5 subdirectories */
794 AllocatePluginDir( p_this, psz_fullpath, 5 );
796 free( psz_fullpath );
799 /* Free plugin-path */
800 if( path[ sizeof(path)/sizeof(char*) - 2 ] )
801 free( path[ sizeof(path)/sizeof(char*) - 2 ] );
802 path[ sizeof(path)/sizeof(char*) - 2 ] = NULL;
805 /*****************************************************************************
806 * AllocatePluginDir: recursively parse a directory to look for plugins
807 *****************************************************************************/
808 static void AllocatePluginDir( vlc_object_t *p_this, const char *psz_dir,
811 #if defined( UNDER_CE ) || defined( _MSC_VER )
813 wchar_t psz_wpath[MAX_PATH + 256];
814 wchar_t psz_wdir[MAX_PATH];
816 char psz_path[MAX_PATH + 256];
817 WIN32_FIND_DATA finddata;
823 struct dirent * file;
827 if( p_this->p_vlc->b_die || i_maxdepth < 0 )
832 #if defined( UNDER_CE ) || defined( _MSC_VER )
834 MultiByteToWideChar( CP_ACP, 0, psz_dir, -1, psz_wdir, MAX_PATH );
836 rc = GetFileAttributes( psz_wdir );
837 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
839 /* Parse all files in the directory */
840 swprintf( psz_wpath, L"%ls\\*", psz_wdir );
842 rc = GetFileAttributes( psz_dir );
843 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
846 /* Parse all files in the directory */
847 sprintf( psz_path, "%s\\*", psz_dir );
850 handle = FindFirstFile( psz_wpath, &finddata );
852 handle = FindFirstFile( psz_path, &finddata );
854 if( handle == INVALID_HANDLE_VALUE )
856 /* Empty directory */
860 /* Parse the directory and try to load all files it contains. */
864 unsigned int i_len = wcslen( finddata.cFileName );
865 swprintf( psz_wpath, L"%ls\\%ls", psz_wdir, finddata.cFileName );
866 sprintf( psz_path, "%s\\%ls", psz_dir, finddata.cFileName );
868 unsigned int i_len = strlen( finddata.cFileName );
869 sprintf( psz_path, "%s\\%s", psz_dir, finddata.cFileName );
872 /* Skip ".", ".." and anything starting with "." */
873 if( !*finddata.cFileName || *finddata.cFileName == '.' )
875 if( !FindNextFile( handle, &finddata ) ) break;
880 if( GetFileAttributes( psz_wpath ) & FILE_ATTRIBUTE_DIRECTORY )
882 if( GetFileAttributes( psz_path ) & FILE_ATTRIBUTE_DIRECTORY )
885 AllocatePluginDir( p_this, psz_path, i_maxdepth - 1 );
887 else if( i_len > strlen( LIBEXT )
888 /* We only load files ending with LIBEXT */
889 && !strncasecmp( psz_path + strlen( psz_path)
891 LIBEXT, strlen( LIBEXT ) ) )
893 WIN32_FILE_ATTRIBUTE_DATA attrbuf;
894 int64_t i_time = 0, i_size = 0;
897 if( GetFileAttributesEx( psz_wpath, GetFileExInfoStandard,
900 if( GetFileAttributesEx( psz_path, GetFileExInfoStandard,
904 i_time = attrbuf.ftLastWriteTime.dwHighDateTime;
906 i_time |= attrbuf.ftLastWriteTime.dwLowDateTime;
907 i_size = attrbuf.nFileSizeHigh;
909 i_size |= attrbuf.nFileSizeLow;
913 AllocatePluginFile( p_this, psz_file, i_time, i_size );
916 while( !p_this->p_vlc->b_die && FindNextFile( handle, &finddata ) );
918 /* Close the directory */
922 dir = opendir( psz_dir );
928 i_dirlen = strlen( psz_dir );
930 /* Parse the directory and try to load all files it contains. */
931 while( !p_this->p_vlc->b_die && (file = readdir( dir )) )
937 /* Skip ".", ".." and anything starting with "." */
938 if( !*file->d_name || *file->d_name == '.' )
943 i_len = strlen( file->d_name );
944 psz_file = malloc( i_dirlen + 1 + i_len + 1 );
946 sprintf( psz_file, "%s\\%s", psz_dir, file->d_name );
948 sprintf( psz_file, "%s/%s", psz_dir, file->d_name );
951 i_stat = stat( psz_file, &statbuf );
952 if( !i_stat && statbuf.st_mode & S_IFDIR )
954 AllocatePluginDir( p_this, psz_file, i_maxdepth - 1 );
956 else if( i_len > strlen( LIBEXT )
957 /* We only load files ending with LIBEXT */
958 && !strncasecmp( file->d_name + i_len - strlen( LIBEXT ),
959 LIBEXT, strlen( LIBEXT ) ) )
961 int64_t i_time = 0, i_size = 0;
965 i_time = statbuf.st_mtime;
966 i_size = statbuf.st_size;
969 AllocatePluginFile( p_this, psz_file, i_time, i_size );
975 /* Close the directory */
981 /*****************************************************************************
982 * AllocatePluginFile: load a module into memory and initialize it.
983 *****************************************************************************
984 * This function loads a dynamically loadable module and allocates a structure
985 * for its information data. The module can then be handled by module_Need
986 * and module_Unneed. It can be removed by DeleteModule.
987 *****************************************************************************/
988 static int AllocatePluginFile( vlc_object_t * p_this, char * psz_file,
989 int64_t i_file_time, int64_t i_file_size )
992 module_cache_t *p_cache_entry = NULL;
995 * Check our plugins cache first then load plugin if needed
998 CacheFind( p_this, psz_file, i_file_time, i_file_size );
1000 if( !p_cache_entry )
1002 p_module = AllocatePlugin( p_this, psz_file );
1006 /* If junk dll, don't try to load it */
1007 if( p_cache_entry->b_junk )
1013 module_config_t *p_item;
1015 p_module = p_cache_entry->p_module;
1016 p_module->b_loaded = VLC_FALSE;
1018 /* For now we force loading if the module's config contains
1019 * callbacks or actions.
1020 * Could be optimized by adding an API call.*/
1021 for( p_item = p_module->p_config;
1022 p_item->i_type != CONFIG_HINT_END; p_item++ )
1024 if( p_item->pf_callback || p_item->i_action )
1025 p_module = AllocatePlugin( p_this, psz_file );
1032 /* Everything worked fine !
1033 * The module is ready to be added to the list. */
1034 p_module->b_builtin = VLC_FALSE;
1036 /* msg_Dbg( p_this, "plugin \"%s\", %s",
1037 p_module->psz_object_name, p_module->psz_longname ); */
1039 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
1042 if( !p_this->p_libvlc->p_module_bank->b_cache ) return 0;
1044 /* Add entry to cache */
1045 #define p_bank p_this->p_libvlc->p_module_bank
1047 realloc( p_bank->pp_cache, (p_bank->i_cache + 1) * sizeof(void *) );
1048 p_bank->pp_cache[p_bank->i_cache] = malloc( sizeof(module_cache_t) );
1049 p_bank->pp_cache[p_bank->i_cache]->psz_file = strdup( psz_file );
1050 p_bank->pp_cache[p_bank->i_cache]->i_time = i_file_time;
1051 p_bank->pp_cache[p_bank->i_cache]->i_size = i_file_size;
1052 p_bank->pp_cache[p_bank->i_cache]->b_junk = p_module ? 0 : 1;
1053 p_bank->pp_cache[p_bank->i_cache]->p_module = p_module;
1056 return p_module ? 0 : -1;
1059 /*****************************************************************************
1060 * AllocatePlugin: load a module into memory and initialize it.
1061 *****************************************************************************
1062 * This function loads a dynamically loadable module and allocates a structure
1063 * for its information data. The module can then be handled by module_Need
1064 * and module_Unneed. It can be removed by DeleteModule.
1065 *****************************************************************************/
1066 static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
1068 module_t * p_module;
1069 module_handle_t handle;
1071 if( LoadModule( p_this, psz_file, &handle ) ) return NULL;
1073 /* Now that we have successfully loaded the module, we can
1074 * allocate a structure for it */
1075 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1076 if( p_module == NULL )
1078 msg_Err( p_this, "out of memory" );
1079 CloseModule( handle );
1083 /* We need to fill these since they may be needed by CallEntry() */
1084 p_module->psz_filename = psz_file;
1085 p_module->handle = handle;
1086 p_module->p_symbols = &p_this->p_libvlc->p_module_bank->symbols;
1087 p_module->b_loaded = VLC_TRUE;
1089 /* Initialize the module: fill p_module, default config */
1090 if( CallEntry( p_module ) != 0 )
1092 /* We couldn't call module_init() */
1093 vlc_object_destroy( p_module );
1094 CloseModule( handle );
1098 DupModule( p_module );
1099 p_module->psz_filename = strdup( p_module->psz_filename );
1101 /* Everything worked fine ! The module is ready to be added to the list. */
1102 p_module->b_builtin = VLC_FALSE;
1107 /*****************************************************************************
1108 * DupModule: make a plugin module standalone.
1109 *****************************************************************************
1110 * This function duplicates all strings in the module, so that the dynamic
1111 * object can be unloaded. It acts recursively on submodules.
1112 *****************************************************************************/
1113 static void DupModule( module_t *p_module )
1118 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1120 *pp_shortcut = strdup( *pp_shortcut );
1123 /* We strdup() these entries so that they are still valid when the
1124 * module is unloaded. */
1125 p_module->psz_object_name = strdup( p_module->psz_object_name );
1126 p_module->psz_capability = strdup( p_module->psz_capability );
1127 p_module->psz_shortname = p_module->psz_shortname ?
1128 strdup( p_module->psz_shortname ) : NULL;
1129 p_module->psz_longname = strdup( p_module->psz_longname );
1131 if( p_module->psz_program != NULL )
1133 p_module->psz_program = strdup( p_module->psz_program );
1136 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1138 DupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1142 /*****************************************************************************
1143 * UndupModule: free a duplicated module.
1144 *****************************************************************************
1145 * This function frees the allocations done in DupModule().
1146 *****************************************************************************/
1147 static void UndupModule( module_t *p_module )
1152 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1154 UndupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1157 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1159 free( *pp_shortcut );
1162 free( p_module->psz_object_name );
1163 free( p_module->psz_capability );
1164 if( p_module->psz_shortname ) free( p_module->psz_shortname );
1165 free( p_module->psz_longname );
1167 if( p_module->psz_program != NULL )
1169 free( p_module->psz_program );
1173 #endif /* HAVE_DYNAMIC_PLUGINS */
1175 /*****************************************************************************
1176 * AllocateBuiltinModule: initialize a builtin module.
1177 *****************************************************************************
1178 * This function registers a builtin module and allocates a structure
1179 * for its information data. The module can then be handled by module_Need
1180 * and module_Unneed. It can be removed by DeleteModule.
1181 *****************************************************************************/
1182 static int AllocateBuiltinModule( vlc_object_t * p_this,
1183 int ( *pf_entry ) ( module_t * ) )
1185 module_t * p_module;
1187 /* Now that we have successfully loaded the module, we can
1188 * allocate a structure for it */
1189 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1190 if( p_module == NULL )
1192 msg_Err( p_this, "out of memory" );
1196 /* Initialize the module : fill p_module->psz_object_name, etc. */
1197 if( pf_entry( p_module ) != 0 )
1199 /* With a well-written module we shouldn't have to print an
1200 * additional error message here, but just make sure. */
1201 msg_Err( p_this, "failed calling entry point in builtin module" );
1202 vlc_object_destroy( p_module );
1206 /* Everything worked fine ! The module is ready to be added to the list. */
1207 p_module->b_builtin = VLC_TRUE;
1209 /* msg_Dbg( p_this, "builtin \"%s\", %s",
1210 p_module->psz_object_name, p_module->psz_longname ); */
1212 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
1217 /*****************************************************************************
1218 * DeleteModule: delete a module and its structure.
1219 *****************************************************************************
1220 * This function can only be called if the module isn't being used.
1221 *****************************************************************************/
1222 static int DeleteModule( module_t * p_module )
1224 vlc_object_detach( p_module );
1226 /* We free the structures that we strdup()ed in Allocate*Module(). */
1227 #ifdef HAVE_DYNAMIC_PLUGINS
1228 if( !p_module->b_builtin )
1230 if( p_module->b_loaded && p_module->b_unloadable )
1232 CloseModule( p_module->handle );
1234 UndupModule( p_module );
1235 free( p_module->psz_filename );
1239 /* Free and detach the object's children */
1240 while( p_module->i_children )
1242 vlc_object_t *p_this = p_module->pp_children[0];
1243 vlc_object_detach( p_this );
1244 vlc_object_destroy( p_this );
1247 config_Free( p_module );
1248 vlc_object_destroy( p_module );
1253 #ifdef HAVE_DYNAMIC_PLUGINS
1254 /*****************************************************************************
1255 * CallEntry: call an entry point.
1256 *****************************************************************************
1257 * This function calls a symbol given its name and a module structure. The
1258 * symbol MUST refer to a function returning int and taking a module_t* as
1260 *****************************************************************************/
1261 static int CallEntry( module_t * p_module )
1263 static char *psz_name = "vlc_entry" MODULE_SUFFIX;
1264 int (* pf_symbol) ( module_t * p_module );
1266 /* Try to resolve the symbol */
1267 pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
1269 if( pf_symbol == NULL )
1271 #if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
1272 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
1273 psz_name, p_module->psz_filename );
1274 #elif defined(HAVE_DL_WINDOWS)
1275 char *psz_error = GetWindowsError();
1276 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1277 psz_name, p_module->psz_filename, psz_error );
1279 #elif defined(HAVE_DL_DLOPEN)
1280 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1281 psz_name, p_module->psz_filename, dlerror() );
1282 #elif defined(HAVE_DL_SHL_LOAD)
1283 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1284 psz_name, p_module->psz_filename, strerror(errno) );
1286 # error "Something is wrong in modules.c"
1291 /* We can now try to call the symbol */
1292 if( pf_symbol( p_module ) != 0 )
1294 /* With a well-written module we shouldn't have to print an
1295 * additional error message here, but just make sure. */
1296 msg_Err( p_module, "failed calling symbol \"%s\" in file `%s'",
1297 psz_name, p_module->psz_filename );
1301 /* Everything worked fine, we can return */
1305 /*****************************************************************************
1306 * LoadModule: loads a dynamic library
1307 *****************************************************************************
1308 * This function loads a dynamically linked library using a system dependant
1309 * method. Will return 0 on success as well as the module handle.
1310 *****************************************************************************/
1311 static int LoadModule( vlc_object_t *p_this, char *psz_file,
1312 module_handle_t *p_handle )
1314 module_handle_t handle;
1316 #if defined(HAVE_DL_DYLD)
1317 NSObjectFileImage image;
1318 NSObjectFileImageReturnCode ret;
1320 ret = NSCreateObjectFileImageFromFile( psz_file, &image );
1322 if( ret != NSObjectFileImageSuccess )
1324 msg_Warn( p_this, "cannot create image from `%s'", psz_file );
1328 /* Open the dynamic module */
1329 handle = NSLinkModule( image, psz_file,
1330 NSLINKMODULE_OPTION_RETURN_ON_ERROR );
1334 NSLinkEditErrors errors;
1335 const char *psz_file, *psz_err;
1337 NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
1338 msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
1339 NSDestroyObjectFileImage( image );
1343 /* Destroy our image, we won't need it */
1344 NSDestroyObjectFileImage( image );
1346 #elif defined(HAVE_DL_BEOS)
1347 handle = load_add_on( psz_file );
1350 msg_Warn( p_this, "cannot load module `%s'", psz_file );
1354 #elif defined(HAVE_DL_WINDOWS)
1357 wchar_t psz_wfile[MAX_PATH];
1358 MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
1359 handle = LoadLibrary( psz_wfile );
1362 handle = LoadLibrary( psz_file );
1364 if( handle == NULL )
1366 char *psz_err = GetWindowsError();
1367 msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
1372 #elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
1373 /* static is OK, we are called atomically */
1374 static vlc_bool_t b_kde = VLC_FALSE;
1376 # if defined(SYS_LINUX)
1377 /* XXX HACK #1 - we should NOT open modules with RTLD_GLOBAL, or we
1378 * are going to get namespace collisions when two modules have common
1379 * public symbols, but ALSA is being a pest here. */
1380 if( strstr( psz_file, "alsa_plugin" ) )
1382 handle = dlopen( psz_file, RTLD_NOW | RTLD_GLOBAL );
1383 if( handle == NULL )
1385 msg_Warn( p_this, "cannot load module `%s' (%s)",
1386 psz_file, dlerror() );
1391 /* XXX HACK #2 - the ugly KDE workaround. It seems that libkdewhatever
1392 * causes dlopen() to segfault if libstdc++ is not loaded in the caller,
1393 * so we just load libstdc++. Bwahahaha! ph34r! -- Sam. */
1394 /* Update: FYI, this is Debian bug #180505, and seems to be fixed. */
1395 if( !b_kde && !strstr( psz_file, "kde" ) )
1397 dlopen( "libstdc++.so.6", RTLD_NOW )
1398 || dlopen( "libstdc++.so.5", RTLD_NOW )
1399 || dlopen( "libstdc++.so.4", RTLD_NOW )
1400 || dlopen( "libstdc++.so.3", RTLD_NOW );
1404 handle = dlopen( psz_file, RTLD_NOW );
1405 if( handle == NULL )
1407 msg_Warn( p_this, "cannot load module `%s' (%s)",
1408 psz_file, dlerror() );
1412 #elif defined(HAVE_DL_DLOPEN)
1413 # if defined(DL_LAZY)
1414 handle = dlopen( psz_file, DL_LAZY );
1416 handle = dlopen( psz_file, 0 );
1418 if( handle == NULL )
1420 msg_Warn( p_this, "cannot load module `%s' (%s)",
1421 psz_file, dlerror() );
1425 #elif defined(HAVE_DL_SHL_LOAD)
1426 handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
1427 if( handle == NULL )
1429 msg_Warn( p_this, "cannot load module `%s' (%s)",
1430 psz_file, strerror(errno) );
1435 # error "Something is wrong in modules.c"
1443 /*****************************************************************************
1444 * CloseModule: unload a dynamic library
1445 *****************************************************************************
1446 * This function unloads a previously opened dynamically linked library
1447 * using a system dependant method. No return value is taken in consideration,
1448 * since some libraries sometimes refuse to close properly.
1449 *****************************************************************************/
1450 static void CloseModule( module_handle_t handle )
1452 #if defined(HAVE_DL_DYLD)
1453 NSUnLinkModule( handle, FALSE );
1455 #elif defined(HAVE_DL_BEOS)
1456 unload_add_on( handle );
1458 #elif defined(HAVE_DL_WINDOWS)
1459 FreeLibrary( handle );
1461 #elif defined(HAVE_DL_DLOPEN)
1464 #elif defined(HAVE_DL_SHL_LOAD)
1465 shl_unload( handle );
1471 /*****************************************************************************
1472 * GetSymbol: get a symbol from a dynamic library
1473 *****************************************************************************
1474 * This function queries a loaded library for a symbol specified in a
1475 * string, and returns a pointer to it. We don't check for dlerror() or
1476 * similar functions, since we want a non-NULL symbol anyway.
1477 *****************************************************************************/
1478 static void * _module_getsymbol( module_handle_t, const char * );
1480 static void * GetSymbol( module_handle_t handle, const char * psz_function )
1482 void * p_symbol = _module_getsymbol( handle, psz_function );
1484 /* MacOS X dl library expects symbols to begin with "_". So do
1485 * some other operating systems. That's really lame, but hey, what
1487 if( p_symbol == NULL )
1489 char *psz_call = malloc( strlen( psz_function ) + 2 );
1491 strcpy( psz_call + 1, psz_function );
1492 psz_call[ 0 ] = '_';
1493 p_symbol = _module_getsymbol( handle, psz_call );
1500 static void * _module_getsymbol( module_handle_t handle,
1501 const char * psz_function )
1503 #if defined(HAVE_DL_DYLD)
1504 NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
1505 return NSAddressOfSymbol( sym );
1507 #elif defined(HAVE_DL_BEOS)
1509 if( B_OK == get_image_symbol( handle, psz_function,
1510 B_SYMBOL_TYPE_TEXT, &p_symbol ) )
1519 #elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
1520 wchar_t psz_real[256];
1521 MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
1523 return (void *)GetProcAddress( handle, psz_real );
1525 #elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
1526 return (void *)GetProcAddress( handle, (char *)psz_function );
1528 #elif defined(HAVE_DL_DLOPEN)
1529 return dlsym( handle, psz_function );
1531 #elif defined(HAVE_DL_SHL_LOAD)
1533 shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
1539 #if defined(HAVE_DL_WINDOWS)
1540 static char * GetWindowsError( void )
1542 #if defined(UNDER_CE)
1543 wchar_t psz_tmp[MAX_PATH];
1544 char * psz_buffer = malloc( MAX_PATH );
1546 char * psz_tmp = malloc( MAX_PATH );
1548 int i = 0, i_error = GetLastError();
1550 FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
1551 NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
1552 (LPTSTR)psz_tmp, MAX_PATH, NULL );
1554 /* Go to the end of the string */
1555 while( psz_tmp[i] && psz_tmp[i] != _T('\r') && psz_tmp[i] != _T('\n') )
1562 #if defined(UNDER_CE)
1563 swprintf( psz_tmp + i, L" (error %i)", i_error );
1564 psz_tmp[ 255 ] = L'\0';
1566 snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
1567 psz_tmp[ 255 ] = '\0';
1571 #if defined(UNDER_CE)
1572 wcstombs( psz_buffer, psz_tmp, MAX_PATH );
1578 #endif /* HAVE_DL_WINDOWS */
1580 /*****************************************************************************
1581 * LoadPluginsCache: loads the plugins cache file
1582 *****************************************************************************
1583 * This function will load the plugin cache if present and valid. This cache
1584 * will in turn be queried by AllocateAllPlugins() to see if it needs to
1585 * actually load the dynamically loadable module.
1586 * This allows us to only fully load plugins when they are actually used.
1587 *****************************************************************************/
1588 static void CacheLoad( vlc_object_t *p_this )
1590 char *psz_filename, *psz_homedir;
1592 int i, j, i_size, i_read;
1593 char p_cachestring[sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE)];
1594 char p_cachelang[6], p_lang[6];
1596 module_cache_t **pp_cache = 0;
1597 int32_t i_file_size, i_marker;
1599 psz_homedir = p_this->p_vlc->psz_homedir;
1602 msg_Err( p_this, "psz_homedir is null" );
1606 i_size = asprintf( &psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1607 PLUGINSCACHE_DIR, CacheName() );
1610 msg_Err( p_this, "out of memory" );
1614 if( p_this->p_libvlc->p_module_bank->b_cache_delete )
1616 #if !defined( UNDER_CE )
1617 unlink( psz_filename );
1619 wchar_t psz_wf[MAX_PATH];
1620 MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
1621 DeleteFile( psz_wf );
1623 msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
1627 msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
1629 file = fopen( psz_filename, "rb" );
1632 msg_Warn( p_this, "could not open plugins cache file %s for reading",
1634 free( psz_filename );
1637 free( psz_filename );
1639 /* Check the file size */
1640 i_read = fread( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1641 if( i_read != sizeof(i_file_size) )
1643 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1649 fseek( file, 0, SEEK_END );
1650 if( ftell( file ) != i_file_size )
1652 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1653 "(corrupted size)" );
1657 fseek( file, sizeof(i_file_size), SEEK_SET );
1659 /* Check the file is a plugins cache */
1660 i_size = sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE) - 1;
1661 i_read = fread( p_cachestring, sizeof(char), i_size, file );
1662 if( i_read != i_size ||
1663 memcmp( p_cachestring, PLUGINSCACHE_DIR COPYRIGHT_MESSAGE, i_size ) )
1665 msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
1670 /* Check the language hasn't changed */
1671 sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
1672 i_read = fread( p_cachelang, sizeof(char), i_size, file );
1673 if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
1675 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1676 "(language changed)" );
1681 /* Check header marker */
1682 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1683 if( i_read != sizeof(i_marker) ||
1684 i_marker != ftell( file ) - (int)sizeof(i_marker) )
1686 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1687 "(corrupted header)" );
1692 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1693 fread( &i_cache, sizeof(char), sizeof(i_cache), file );
1694 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache =
1695 malloc( i_cache * sizeof(void *) );
1697 #define LOAD_IMMEDIATE(a) \
1698 if( fread( &a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
1699 #define LOAD_STRING(a) \
1700 { if( fread( &i_size, sizeof(char), sizeof(i_size), file ) \
1701 != sizeof(i_size) ) goto error; \
1703 a = malloc( i_size ); \
1704 if( fread( a, sizeof(char), i_size, file ) != (size_t)i_size ) \
1710 for( i = 0; i < i_cache; i++ )
1715 pp_cache[i] = malloc( sizeof(module_cache_t) );
1716 p_this->p_libvlc->p_module_bank->i_loaded_cache++;
1718 /* Load common info */
1719 LOAD_STRING( pp_cache[i]->psz_file );
1720 LOAD_IMMEDIATE( pp_cache[i]->i_time );
1721 LOAD_IMMEDIATE( pp_cache[i]->i_size );
1722 LOAD_IMMEDIATE( pp_cache[i]->b_junk );
1724 if( pp_cache[i]->b_junk ) continue;
1726 pp_cache[i]->p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1728 /* Load additional infos */
1729 LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
1730 LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
1731 LOAD_STRING( pp_cache[i]->p_module->psz_longname );
1732 LOAD_STRING( pp_cache[i]->p_module->psz_program );
1733 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1735 LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
1737 LOAD_STRING( pp_cache[i]->p_module->psz_capability );
1738 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
1739 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
1740 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
1741 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
1742 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
1745 if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
1748 LOAD_STRING( pp_cache[i]->p_module->psz_filename );
1750 LOAD_IMMEDIATE( i_submodules );
1752 while( i_submodules-- )
1754 module_t *p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE);
1755 vlc_object_attach( p_module, pp_cache[i]->p_module );
1756 p_module->b_submodule = VLC_TRUE;
1758 LOAD_STRING( p_module->psz_object_name );
1759 LOAD_STRING( p_module->psz_shortname );
1760 LOAD_STRING( p_module->psz_longname );
1761 LOAD_STRING( p_module->psz_program );
1762 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1764 LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
1766 LOAD_STRING( p_module->psz_capability );
1767 LOAD_IMMEDIATE( p_module->i_score );
1768 LOAD_IMMEDIATE( p_module->i_cpu );
1769 LOAD_IMMEDIATE( p_module->b_unloadable );
1770 LOAD_IMMEDIATE( p_module->b_reentrant );
1779 msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
1782 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1788 int CacheLoadConfig( module_t *p_module, FILE *file )
1793 /* Calculate the structure length */
1794 LOAD_IMMEDIATE( p_module->i_config_items );
1795 LOAD_IMMEDIATE( p_module->i_bool_items );
1797 LOAD_IMMEDIATE( i_lines );
1799 /* Allocate memory */
1800 p_module->p_config =
1801 (module_config_t *)malloc( sizeof(module_config_t) * (i_lines + 1));
1802 if( p_module->p_config == NULL )
1804 msg_Err( p_module, "config error: can't duplicate p_config" );
1808 /* Do the duplication job */
1809 for( i = 0; i < i_lines ; i++ )
1811 LOAD_IMMEDIATE( p_module->p_config[i] );
1813 LOAD_STRING( p_module->p_config[i].psz_type );
1814 LOAD_STRING( p_module->p_config[i].psz_name );
1815 LOAD_STRING( p_module->p_config[i].psz_text );
1816 LOAD_STRING( p_module->p_config[i].psz_longtext );
1817 LOAD_STRING( p_module->p_config[i].psz_value_orig );
1819 p_module->p_config[i].psz_value =
1820 p_module->p_config[i].psz_value_orig ?
1821 strdup( p_module->p_config[i].psz_value_orig ) : 0;
1822 p_module->p_config[i].i_value = p_module->p_config[i].i_value_orig;
1823 p_module->p_config[i].f_value = p_module->p_config[i].f_value_orig;
1825 p_module->p_config[i].p_lock = &p_module->object_lock;
1827 if( p_module->p_config[i].i_list )
1829 if( p_module->p_config[i].ppsz_list )
1831 p_module->p_config[i].ppsz_list =
1832 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1833 if( p_module->p_config[i].ppsz_list )
1835 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1836 LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
1837 p_module->p_config[i].ppsz_list[j] = NULL;
1840 if( p_module->p_config[i].ppsz_list_text )
1842 p_module->p_config[i].ppsz_list_text =
1843 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1844 if( p_module->p_config[i].ppsz_list_text )
1846 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1847 LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
1848 p_module->p_config[i].ppsz_list_text[j] = NULL;
1851 if( p_module->p_config[i].pi_list )
1853 p_module->p_config[i].pi_list =
1854 malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
1855 if( p_module->p_config[i].pi_list )
1857 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1858 LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
1863 if( p_module->p_config[i].i_action )
1865 p_module->p_config[i].ppf_action =
1866 malloc( p_module->p_config[i].i_action * sizeof(void *) );
1867 p_module->p_config[i].ppsz_action_text =
1868 malloc( p_module->p_config[i].i_action * sizeof(char *) );
1870 for( j = 0; j < p_module->p_config[i].i_action; j++ )
1872 p_module->p_config[i].ppf_action[j] = 0;
1873 LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
1877 LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
1880 p_module->p_config[i].i_type = CONFIG_HINT_END;
1886 return VLC_EGENERIC;
1889 /*****************************************************************************
1890 * SavePluginsCache: saves the plugins cache to a file
1891 *****************************************************************************/
1892 static void CacheSave( vlc_object_t *p_this )
1894 static char const psz_tag[] =
1895 "Signature: 8a477f597d28d172789f06886806bc55\r\n"
1896 "# This file is a cache directory tag created by VLC.\r\n"
1897 "# For information about cache directory tags, see:\r\n"
1898 "# http://www.brynosaurus.com/cachedir/\r\n";
1900 char *psz_filename, *psz_homedir;
1903 module_cache_t **pp_cache;
1904 int32_t i_file_size = 0;
1906 psz_homedir = p_this->p_vlc->psz_homedir;
1909 msg_Err( p_this, "psz_homedir is null" );
1913 (char *)malloc( sizeof("/" CONFIG_DIR "/" PLUGINSCACHE_DIR "/" ) +
1914 strlen(psz_homedir) + strlen(CacheName()) );
1918 msg_Err( p_this, "out of memory" );
1922 sprintf( psz_filename, "%s/%s", psz_homedir, CONFIG_DIR );
1924 config_CreateDir( p_this, psz_filename );
1926 strcat( psz_filename, "/" PLUGINSCACHE_DIR );
1928 config_CreateDir( p_this, psz_filename );
1930 strcat( psz_filename, "/CACHEDIR.TAG" );
1932 file = fopen( psz_filename, "wb" );
1935 fwrite( psz_tag, 1, strlen(psz_tag), file );
1939 sprintf( psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1940 PLUGINSCACHE_DIR, CacheName() );
1942 msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
1944 file = fopen( psz_filename, "wb" );
1947 msg_Warn( p_this, "could not open plugins cache file %s for writing",
1949 free( psz_filename );
1952 free( psz_filename );
1954 /* Empty space for file size */
1955 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1957 /* Contains version number */
1958 fprintf( file, "%s", PLUGINSCACHE_DIR COPYRIGHT_MESSAGE );
1961 fprintf( file, "%5.5s", _("C") );
1964 i_file_size = ftell( file );
1965 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1967 i_cache = p_this->p_libvlc->p_module_bank->i_cache;
1968 pp_cache = p_this->p_libvlc->p_module_bank->pp_cache;
1970 fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
1972 #define SAVE_IMMEDIATE(a) \
1973 fwrite( &a, sizeof(char), sizeof(a), file )
1974 #define SAVE_STRING(a) \
1975 { i_size = a ? strlen( a ) + 1 : 0; \
1976 fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
1977 if( a ) fwrite( a, sizeof(char), i_size, file ); \
1980 for( i = 0; i < i_cache; i++ )
1983 int32_t i_submodule;
1985 /* Save common info */
1986 SAVE_STRING( pp_cache[i]->psz_file );
1987 SAVE_IMMEDIATE( pp_cache[i]->i_time );
1988 SAVE_IMMEDIATE( pp_cache[i]->i_size );
1989 SAVE_IMMEDIATE( pp_cache[i]->b_junk );
1991 if( pp_cache[i]->b_junk ) continue;
1993 /* Save additional infos */
1994 SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
1995 SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
1996 SAVE_STRING( pp_cache[i]->p_module->psz_longname );
1997 SAVE_STRING( pp_cache[i]->p_module->psz_program );
1998 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2000 SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
2002 SAVE_STRING( pp_cache[i]->p_module->psz_capability );
2003 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
2004 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
2005 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
2006 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
2007 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
2010 CacheSaveConfig( pp_cache[i]->p_module, file );
2012 SAVE_STRING( pp_cache[i]->p_module->psz_filename );
2014 i_submodule = pp_cache[i]->p_module->i_children;
2015 SAVE_IMMEDIATE( i_submodule );
2016 for( i_submodule = 0; i_submodule < pp_cache[i]->p_module->i_children;
2019 module_t *p_module =
2020 (module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
2022 SAVE_STRING( p_module->psz_object_name );
2023 SAVE_STRING( p_module->psz_shortname );
2024 SAVE_STRING( p_module->psz_longname );
2025 SAVE_STRING( p_module->psz_program );
2026 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2028 SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
2030 SAVE_STRING( p_module->psz_capability );
2031 SAVE_IMMEDIATE( p_module->i_score );
2032 SAVE_IMMEDIATE( p_module->i_cpu );
2033 SAVE_IMMEDIATE( p_module->b_unloadable );
2034 SAVE_IMMEDIATE( p_module->b_reentrant );
2038 /* Fill-up file size */
2039 i_file_size = ftell( file );
2040 fseek( file, 0, SEEK_SET );
2041 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2048 void CacheSaveConfig( module_t *p_module, FILE *file )
2050 int i, j, i_lines = 0;
2051 module_config_t *p_item;
2054 SAVE_IMMEDIATE( p_module->i_config_items );
2055 SAVE_IMMEDIATE( p_module->i_bool_items );
2057 for( p_item = p_module->p_config; p_item->i_type != CONFIG_HINT_END;
2058 p_item++ ) i_lines++;
2060 SAVE_IMMEDIATE( i_lines );
2062 for( i = 0; i < i_lines ; i++ )
2064 SAVE_IMMEDIATE( p_module->p_config[i] );
2066 SAVE_STRING( p_module->p_config[i].psz_type );
2067 SAVE_STRING( p_module->p_config[i].psz_name );
2068 SAVE_STRING( p_module->p_config[i].psz_text );
2069 SAVE_STRING( p_module->p_config[i].psz_longtext );
2070 SAVE_STRING( p_module->p_config[i].psz_value_orig );
2072 if( p_module->p_config[i].i_list )
2074 if( p_module->p_config[i].ppsz_list )
2076 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2077 SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
2080 if( p_module->p_config[i].ppsz_list_text )
2082 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2083 SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
2085 if( p_module->p_config[i].pi_list )
2087 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2088 SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
2092 for( j = 0; j < p_module->p_config[i].i_action; j++ )
2093 SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
2095 SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
2099 /*****************************************************************************
2100 * CacheName: Return the cache file name for this platform.
2101 *****************************************************************************/
2102 static char *CacheName( void )
2104 static char psz_cachename[32];
2105 static vlc_bool_t b_initialised = VLC_FALSE;
2107 if( !b_initialised )
2109 /* Code int size, pointer size and endianness in the filename */
2110 int32_t x = 0xbe00001e;
2111 sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", sizeof(int),
2112 sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
2113 b_initialised = VLC_TRUE;
2116 return psz_cachename;
2119 /*****************************************************************************
2120 * CacheMerge: Merge a cache module descriptor with a full module descriptor.
2121 *****************************************************************************/
2122 static void CacheMerge( vlc_object_t *p_this, module_t *p_cache,
2123 module_t *p_module )
2127 p_cache->pf_activate = p_module->pf_activate;
2128 p_cache->pf_deactivate = p_module->pf_deactivate;
2129 p_cache->p_symbols = p_module->p_symbols;
2130 p_cache->handle = p_module->handle;
2132 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
2134 module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
2135 module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
2136 p_cchild->pf_activate = p_child->pf_activate;
2137 p_cchild->pf_deactivate = p_child->pf_deactivate;
2138 p_cchild->p_symbols = p_child->p_symbols;
2141 p_cache->b_loaded = VLC_TRUE;
2142 p_module->b_loaded = VLC_FALSE;
2145 /*****************************************************************************
2146 * FindPluginCache: finds the cache entry corresponding to a file
2147 *****************************************************************************/
2148 static module_cache_t *CacheFind( vlc_object_t *p_this, char *psz_file,
2149 int64_t i_time, int64_t i_size )
2151 module_cache_t **pp_cache;
2154 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache;
2155 i_cache = p_this->p_libvlc->p_module_bank->i_loaded_cache;
2157 for( i = 0; i < i_cache; i++ )
2159 if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
2160 pp_cache[i]->i_time == i_time &&
2161 pp_cache[i]->i_size == i_size ) return pp_cache[i];
2167 #endif /* HAVE_DYNAMIC_PLUGINS */