1 /*****************************************************************************
2 * modules.c : Builtin and plugin modules management functions
3 *****************************************************************************
4 * Copyright (C) 2001-2007 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 *****************************************************************************/
28 #include "../libvlc.h"
30 /* Some faulty libcs have a broken struct dirent when _FILE_OFFSET_BITS
31 * is set to 64. Don't try to be cleverer. */
32 #ifdef _FILE_OFFSET_BITS
33 #undef _FILE_OFFSET_BITS
36 #include <stdlib.h> /* free(), strtol() */
37 #include <stdio.h> /* sprintf() */
38 #include <string.h> /* strdup() */
44 #ifdef HAVE_SYS_TYPES_H
45 # include <sys/types.h>
47 #ifdef HAVE_SYS_STAT_H
48 # include <sys/stat.h>
54 #if !defined(HAVE_DYNAMIC_PLUGINS)
55 /* no support for plugins */
56 #elif defined(HAVE_DL_DYLD)
57 # if defined(HAVE_MACH_O_DYLD_H)
58 # include <mach-o/dyld.h>
60 #elif defined(HAVE_DL_BEOS)
61 # if defined(HAVE_IMAGE_H)
64 #elif defined(HAVE_DL_WINDOWS)
66 #elif defined(HAVE_DL_DLOPEN)
67 # if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
70 # if defined(HAVE_SYS_DL_H)
73 #elif defined(HAVE_DL_SHL_LOAD)
74 # if defined(HAVE_DL_H)
79 #include "modules/configuration.h"
82 #include "vlc_interface.h"
83 #include "vlc_playlist.h"
85 #include "vlc_stream.h"
86 #include "vlc_access.h"
87 #include "vlc_demux.h"
88 #include "vlc_codec.h"
91 #include "vlc_vout_synchro.h"
96 #include "vlc_httpd.h"
103 #include "iso_lang.h"
104 #include "vlc_charset.h"
106 #include "vlc_block.h"
110 #include "vlc_image.h"
113 #include "vlc_update.h"
114 #include "vlc_strings.h"
115 #include "vlc_streaming.h"
117 #include "modules/modules.h"
118 #include "modules/builtin.h"
120 #include "vlc_network.h"
122 #if defined( WIN32 ) || defined( UNDER_CE )
123 /* Avoid name collisions */
124 # define LoadModule(a,b,c) LoadVlcModule(a,b,c)
127 /*****************************************************************************
129 *****************************************************************************/
130 #ifdef HAVE_DYNAMIC_PLUGINS
131 static void AllocateAllPlugins ( vlc_object_t * );
132 static void AllocatePluginDir ( vlc_object_t *, const char *, int );
133 static int AllocatePluginFile ( vlc_object_t *, char *, int64_t, int64_t );
134 static module_t * AllocatePlugin( vlc_object_t *, char * );
136 static int AllocateBuiltinModule( vlc_object_t *, int ( * ) ( module_t * ) );
137 static int DeleteModule ( module_t *, vlc_bool_t );
138 #ifdef HAVE_DYNAMIC_PLUGINS
139 static void DupModule ( module_t * );
140 static void UndupModule ( module_t * );
141 static int CallEntry ( module_t * );
142 static int LoadModule ( vlc_object_t *, char *, module_handle_t * );
143 static void CloseModule ( module_handle_t );
144 static void * GetSymbol ( module_handle_t, const char * );
145 static void CacheLoad ( vlc_object_t * );
146 static int CacheLoadConfig ( module_t *, FILE * );
147 static void CacheSave ( vlc_object_t * );
148 static void CacheSaveConfig ( module_t *, FILE * );
149 static char * CacheName ( void );
150 static void CacheMerge ( vlc_object_t *, module_t *, module_t * );
151 static module_cache_t * CacheFind( vlc_object_t *, char *, int64_t, int64_t );
153 #if defined(HAVE_DL_WINDOWS)
154 static char * GetWindowsError ( void );
158 static void module_LoadMain( vlc_object_t *p_this );
160 /* Sub-version number
161 * (only used to avoid breakage in dev version when cache structure changes) */
162 #define CACHE_SUBVERSION_NUM 3
164 /*****************************************************************************
165 * module_InitBank: create the module bank.
166 *****************************************************************************
167 * This function creates a module bank structure which will be filled later
168 * on with all the modules found.
169 *****************************************************************************/
170 void __module_InitBank( vlc_object_t *p_this )
172 module_bank_t *p_bank = NULL;
174 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
176 var_Create( p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
177 var_Get( p_libvlc_global, "libvlc", &lockval );
178 vlc_mutex_lock( lockval.p_address );
179 if( p_libvlc_global->p_module_bank )
181 p_libvlc_global->p_module_bank->i_usage++;
182 vlc_mutex_unlock( lockval.p_address );
183 var_Destroy( p_libvlc_global, "libvlc" );
186 vlc_mutex_unlock( lockval.p_address );
187 var_Destroy( p_libvlc_global, "libvlc" );
189 p_bank = vlc_object_create( p_this, sizeof(module_bank_t) );
192 p_bank->psz_object_name = "module bank";
194 p_bank->i_cache = p_bank->i_loaded_cache = 0;
195 p_bank->pp_cache = p_bank->pp_loaded_cache = NULL;
196 p_bank->b_cache = p_bank->b_cache_dirty =
197 p_bank->b_cache_delete = VLC_FALSE;
199 /* Everything worked, attach the object */
200 p_libvlc_global->p_module_bank = p_bank;
201 vlc_object_attach( p_bank, p_libvlc_global );
203 module_LoadMain( p_this );
207 /*****************************************************************************
208 * module_EndBank: empty the module bank.
209 *****************************************************************************
210 * This function unloads all unused plugin modules and empties the module
211 * bank in case of success.
212 *****************************************************************************/
213 void __module_EndBank( vlc_object_t *p_this )
215 module_t * p_next = NULL;
217 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
219 var_Create( p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
220 var_Get( p_libvlc_global, "libvlc", &lockval );
221 vlc_mutex_lock( lockval.p_address );
222 if( !p_libvlc_global->p_module_bank )
224 vlc_mutex_unlock( lockval.p_address );
225 var_Destroy( p_libvlc_global, "libvlc" );
228 if( --p_libvlc_global->p_module_bank->i_usage )
230 vlc_mutex_unlock( lockval.p_address );
231 var_Destroy( p_libvlc_global, "libvlc" );
234 vlc_mutex_unlock( lockval.p_address );
235 var_Destroy( p_libvlc_global, "libvlc" );
237 config_AutoSaveConfigFile( p_this );
239 #ifdef HAVE_DYNAMIC_PLUGINS
240 # define p_bank p_libvlc_global->p_module_bank
241 if( p_bank->b_cache ) CacheSave( p_this );
242 while( p_bank->i_loaded_cache-- )
244 if( p_bank->pp_loaded_cache[p_bank->i_loaded_cache] )
246 DeleteModule( p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->p_module,
247 p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->b_used );
248 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->psz_file );
249 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache] );
250 p_bank->pp_loaded_cache[p_bank->i_loaded_cache] = NULL;
253 if( p_bank->pp_loaded_cache )
255 free( p_bank->pp_loaded_cache );
256 p_bank->pp_loaded_cache = NULL;
258 while( p_bank->i_cache-- )
260 free( p_bank->pp_cache[p_bank->i_cache]->psz_file );
261 free( p_bank->pp_cache[p_bank->i_cache] );
262 p_bank->pp_cache[p_bank->i_cache] = NULL;
264 if( p_bank->pp_cache )
266 free( p_bank->pp_cache );
267 p_bank->pp_cache = NULL;
272 vlc_object_detach( p_libvlc_global->p_module_bank );
274 while( p_libvlc_global->p_module_bank->i_children )
276 p_next = (module_t *)p_libvlc_global->p_module_bank->pp_children[0];
278 if( DeleteModule( p_next, VLC_TRUE ) )
280 /* Module deletion failed */
281 msg_Err( p_this, "module \"%s\" can't be removed, trying harder",
282 p_next->psz_object_name );
284 /* We just free the module by hand. Niahahahahaha. */
285 vlc_object_detach( p_next );
286 vlc_object_destroy( p_next );
290 vlc_object_destroy( p_libvlc_global->p_module_bank );
291 p_libvlc_global->p_module_bank = NULL;
294 /*****************************************************************************
295 * module_LoadMain: load the main program info into the module bank.
296 *****************************************************************************
297 * This function fills the module bank structure with the main module infos.
298 * This is very useful as it will allow us to consider the main program just
299 * as another module, and for instance the configuration options of main will
300 * be available in the module bank structure just as for every other module.
301 *****************************************************************************/
302 static void module_LoadMain( vlc_object_t *p_this )
305 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
307 var_Create( p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
308 var_Get( p_libvlc_global, "libvlc", &lockval );
309 vlc_mutex_lock( lockval.p_address );
310 if( p_libvlc_global->p_module_bank->b_main )
312 vlc_mutex_unlock( lockval.p_address );
313 var_Destroy( p_libvlc_global, "libvlc" );
316 p_libvlc_global->p_module_bank->b_main = VLC_TRUE;
317 vlc_mutex_unlock( lockval.p_address );
318 var_Destroy( p_libvlc_global, "libvlc" );
320 AllocateBuiltinModule( p_this, vlc_entry__main );
323 /*****************************************************************************
324 * module_LoadBuiltins: load all modules which we built with.
325 *****************************************************************************
326 * This function fills the module bank structure with the builtin modules.
327 *****************************************************************************/
328 void __module_LoadBuiltins( vlc_object_t * p_this )
331 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
333 var_Create( p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
334 var_Get( p_libvlc_global, "libvlc", &lockval );
335 vlc_mutex_lock( lockval.p_address );
336 if( p_libvlc_global->p_module_bank->b_builtins )
338 vlc_mutex_unlock( lockval.p_address );
339 var_Destroy( p_libvlc_global, "libvlc" );
342 p_libvlc_global->p_module_bank->b_builtins = VLC_TRUE;
343 vlc_mutex_unlock( lockval.p_address );
344 var_Destroy( p_libvlc_global, "libvlc" );
346 msg_Dbg( p_this, "checking builtin modules" );
347 ALLOCATE_ALL_BUILTINS();
350 /*****************************************************************************
351 * module_LoadPlugins: load all plugin modules we can find.
352 *****************************************************************************
353 * This function fills the module bank structure with the plugin modules.
354 *****************************************************************************/
355 void __module_LoadPlugins( vlc_object_t * p_this )
357 #ifdef HAVE_DYNAMIC_PLUGINS
359 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
361 var_Create( p_libvlc_global, "libvlc", VLC_VAR_MUTEX );
362 var_Get( p_libvlc_global, "libvlc", &lockval );
363 vlc_mutex_lock( lockval.p_address );
364 if( p_libvlc_global->p_module_bank->b_plugins )
366 vlc_mutex_unlock( lockval.p_address );
367 var_Destroy( p_libvlc_global, "libvlc" );
370 p_libvlc_global->p_module_bank->b_plugins = VLC_TRUE;
371 vlc_mutex_unlock( lockval.p_address );
372 var_Destroy( p_libvlc_global, "libvlc" );
374 msg_Dbg( p_this, "checking plugin modules" );
376 if( config_GetInt( p_this, "plugins-cache" ) )
377 p_libvlc_global->p_module_bank->b_cache = VLC_TRUE;
379 if( p_libvlc_global->p_module_bank->b_cache ||
380 p_libvlc_global->p_module_bank->b_cache_delete ) CacheLoad( p_this );
382 AllocateAllPlugins( p_this );
386 /*****************************************************************************
387 * module_IsCapable: checks whether a module implements a capability.
388 *****************************************************************************/
389 vlc_bool_t module_IsCapable( const module_t *m, const char *cap )
391 return !strcmp( m->psz_capability, cap );
394 /*****************************************************************************
395 * module_Need: return the best module function, given a capability list.
396 *****************************************************************************
397 * This function returns the module that best fits the asked capabilities.
398 *****************************************************************************/
399 module_t * __module_Need( vlc_object_t *p_this, const char *psz_capability,
400 const char *psz_name, vlc_bool_t b_strict )
402 typedef struct module_list_t module_list_t;
409 module_list_t *p_next;
412 module_list_t *p_list, *p_first, *p_tmp;
415 int i_which_module, i_index = 0;
416 vlc_bool_t b_intf = VLC_FALSE;
421 char *psz_shortcuts = NULL, *psz_var = NULL, *psz_alias = NULL;
422 vlc_bool_t b_force_backup = p_this->b_force;
425 /* Deal with variables */
426 if( psz_name && psz_name[0] == '$' )
429 var_Create( p_this, psz_name + 1, VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
430 var_Get( p_this, psz_name + 1, &val );
431 psz_var = val.psz_string;
435 /* Count how many different shortcuts were asked for */
436 if( psz_name && *psz_name )
438 char *psz_parser, *psz_last_shortcut;
440 /* If the user wants none, give him none. */
441 if( !strcmp( psz_name, "none" ) )
448 psz_shortcuts = psz_last_shortcut = strdup( psz_name );
450 for( psz_parser = psz_shortcuts; *psz_parser; psz_parser++ )
452 if( *psz_parser == ',' )
456 psz_last_shortcut = psz_parser + 1;
460 /* Check if the user wants to override the "strict" mode */
461 if( psz_last_shortcut )
463 if( !strcmp(psz_last_shortcut, "none") )
468 else if( !strcmp(psz_last_shortcut, "any") )
470 b_strict = VLC_FALSE;
476 /* Sort the modules and test them */
477 p_all = vlc_list_find( p_this, VLC_OBJECT_MODULE, FIND_ANYWHERE );
478 p_list = malloc( p_all->i_count * sizeof( module_list_t ) );
480 unsigned i_cpu = vlc_CPU();
482 /* Parse the module list for capabilities and probe each of them */
483 for( i_which_module = 0; i_which_module < p_all->i_count; i_which_module++ )
485 int i_shortcut_bonus = 0;
487 p_module = (module_t *)p_all->p_values[i_which_module].p_object;
489 /* Test that this module can do what we need */
490 if( !module_IsCapable( p_module, psz_capability ) )
492 /* Don't recurse through the sub-modules because vlc_list_find()
493 * will list them anyway. */
497 /* Test if we have the required CPU */
498 if( (p_module->i_cpu & i_cpu) != p_module->i_cpu )
503 /* If we required a shortcut, check this plugin provides it. */
504 if( i_shortcuts > 0 )
507 const char *psz_name = psz_shortcuts;
509 /* Let's drop modules with a <= 0 score (unless they are
510 * explicitly requested) */
511 b_trash = p_module->i_score <= 0;
513 for( unsigned i_short = i_shortcuts; i_short > 0; i_short-- )
515 for( unsigned i = 0; p_module->pp_shortcuts[i]; i++ )
518 if( ( c = strchr( psz_name, '@' ) )
519 ? !strncasecmp( psz_name, p_module->pp_shortcuts[i],
521 : !strcasecmp( psz_name, p_module->pp_shortcuts[i] ) )
526 i_shortcut_bonus = i_short * 10000;
531 /* Go to the next shortcut... This is so lame! */
532 psz_name += strlen( psz_name ) + 1;
535 /* If we are in "strict" mode and we couldn't
536 * find the module in the list of provided shortcuts,
537 * then kick the bastard out of here!!! */
541 /* If we didn't require a shortcut, trash <= 0 scored plugins */
542 else if( p_module->i_score <= 0 )
549 /* Special case: test if we requested a particular intf plugin */
550 if( !i_shortcuts && p_module->psz_program
551 && !strcmp( psz_capability, "interface" )
552 && !strcmp( p_module->psz_program,
553 p_this->p_libvlc->psz_object_name ) )
557 /* Remove previous non-matching plugins */
564 /* This one doesn't match */
568 /* Store this new module */
569 p_list[ i_index ].p_module = p_module;
570 p_list[ i_index ].i_score = p_module->i_score + i_shortcut_bonus;
571 p_list[ i_index ].b_force = i_shortcut_bonus && b_strict;
573 /* Add it to the modules-to-probe list */
576 p_list[ 0 ].p_next = NULL;
581 /* Ok, so at school you learned that quicksort is quick, and
582 * bubble sort sucks raw eggs. But that's when dealing with
583 * thousands of items. Here we have barely 50. */
584 module_list_t *p_newlist = p_first;
586 if( p_first->i_score < p_list[ i_index ].i_score )
588 p_list[ i_index ].p_next = p_first;
589 p_first = &p_list[ i_index ];
593 while( p_newlist->p_next != NULL &&
594 p_newlist->p_next->i_score >= p_list[ i_index ].i_score )
596 p_newlist = p_newlist->p_next;
599 p_list[ i_index ].p_next = p_newlist->p_next;
600 p_newlist->p_next = &p_list[ i_index ];
607 msg_Dbg( p_this, "looking for %s module: %i candidate%s", psz_capability,
608 i_index, i_index == 1 ? "" : "s" );
610 /* Lock all candidate modules */
612 while( p_tmp != NULL )
614 vlc_object_yield( p_tmp->p_module );
615 p_tmp = p_tmp->p_next;
618 /* We can release the list, interesting modules were yielded */
619 vlc_list_release( p_all );
621 /* Parse the linked list and use the first successful module */
623 while( p_tmp != NULL )
625 #ifdef HAVE_DYNAMIC_PLUGINS
626 /* Make sure the module is loaded in mem */
627 module_t *p_module = p_tmp->p_module;
628 if( p_module->b_submodule )
629 p_module = (module_t *)p_module->p_parent;
631 if( !p_module->b_builtin && !p_module->b_loaded )
633 module_t *p_new_module =
634 AllocatePlugin( p_this, p_module->psz_filename );
637 CacheMerge( p_this, p_module, p_new_module );
638 vlc_object_attach( p_new_module, p_module );
639 DeleteModule( p_new_module, VLC_TRUE );
644 p_this->b_force = p_tmp->b_force;
645 if( p_tmp->p_module->pf_activate
646 && p_tmp->p_module->pf_activate( p_this ) == VLC_SUCCESS )
651 vlc_object_release( p_tmp->p_module );
652 p_tmp = p_tmp->p_next;
655 /* Store the locked module value */
658 p_module = p_tmp->p_module;
659 p_tmp = p_tmp->p_next;
666 /* Unlock the remaining modules */
667 while( p_tmp != NULL )
669 vlc_object_release( p_tmp->p_module );
670 p_tmp = p_tmp->p_next;
674 p_this->b_force = b_force_backup;
676 if( p_module != NULL )
678 msg_Dbg( p_this, "using %s module \"%s\"",
679 psz_capability, p_module->psz_object_name );
681 else if( p_first == NULL )
683 if( !strcmp( psz_capability, "access_demux" ) )
685 msg_Warn( p_this, "no %s module matched \"%s\"",
686 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
690 msg_Err( p_this, "no %s module matched \"%s\"",
691 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
693 msg_StackSet( VLC_EGENERIC, "no %s module matched \"%s\"",
694 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
697 else if( psz_name != NULL && *psz_name )
699 msg_Warn( p_this, "no %s module matching \"%s\" could be loaded",
700 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
703 msg_StackSet( VLC_EGENERIC, "no suitable %s module", psz_capability );
705 if( p_module && !p_this->psz_object_name )
707 /* This assumes that p_this is the object which will be using the
708 * module. That's not always the case ... but it is in most cases.
711 p_this->psz_object_name = strdup( psz_alias );
713 p_this->psz_object_name = strdup( p_module->psz_object_name );
716 free( psz_shortcuts );
719 /* Don't forget that the module is still locked */
723 /*****************************************************************************
724 * module_Unneed: decrease the usage count of a module.
725 *****************************************************************************
726 * This function must be called by the thread that called module_Need, to
727 * decrease the reference count and allow for hiding of modules.
728 *****************************************************************************/
729 void __module_Unneed( vlc_object_t * p_this, module_t * p_module )
731 /* Use the close method */
732 if( p_module->pf_deactivate )
734 p_module->pf_deactivate( p_this );
737 msg_Dbg( p_this, "removing module \"%s\"", p_module->psz_object_name );
739 vlc_object_release( p_module );
744 /*****************************************************************************
745 * module_Exists: tell if a module exists.
746 *****************************************************************************
747 * This function is a boolean function that tells if a module exist or not.
748 *****************************************************************************/
750 vlc_bool_t __module_Exists( vlc_object_t *p_this, const char * psz_name )
754 p_list = vlc_list_find( p_this, VLC_OBJECT_MODULE, FIND_ANYWHERE );
755 for( i = 0 ; i < p_list->i_count; i++)
757 const char *psz_module_name =
758 ((module_t *) p_list->p_values[i].p_object)->psz_shortname;
759 if( psz_module_name && !strcmp( psz_module_name, psz_name ) )
761 /* We can release the list, and return yes */
762 vlc_list_release( p_list ); return VLC_TRUE;
765 vlc_list_release( p_list ); return VLC_FALSE;
769 /*****************************************************************************
770 * Following functions are local.
771 *****************************************************************************/
773 /*****************************************************************************
774 * AllocateAllPlugins: load all plugin modules we can find.
775 *****************************************************************************/
776 #ifdef HAVE_DYNAMIC_PLUGINS
777 static void AllocateAllPlugins( vlc_object_t *p_this )
779 /* Yes, there are two NULLs because we replace one with "plugin-path". */
780 #if defined( WIN32 ) || defined( UNDER_CE )
781 const char *path[] = { "modules", "", "plugins", NULL, NULL };
783 const char *path[] = { "modules", PLUGIN_PATH, "plugins", NULL, NULL };
786 const char *const *ppsz_path;
788 /* If the user provided a plugin path, we add it to the list */
789 char *userpath = config_GetPsz( p_this, "plugin-path" );
790 path[sizeof(path)/sizeof(path[0]) - 2] = userpath;
792 for (ppsz_path = path; *ppsz_path != NULL; ppsz_path++)
796 if (!**ppsz_path) continue;
798 #if defined( SYS_BEOS ) || defined( __APPLE__ ) || defined( WIN32 )
800 /* Handle relative as well as absolute paths */
802 if( (*ppsz_path)[0] != '\\' && (*ppsz_path)[0] != '/' &&
803 (*ppsz_path)[1] != ':' )
805 if( (*ppsz_path)[0] != '/' )
808 if( 0>= asprintf( &psz_fullpath, "%s"DIR_SEP"%s",
809 vlc_global( p_this )->psz_vlcpath, *ppsz_path) )
814 psz_fullpath = strdup( *ppsz_path );
816 if( psz_fullpath == NULL )
819 msg_Dbg( p_this, "recursively browsing `%s'", psz_fullpath );
821 /* Don't go deeper than 5 subdirectories */
822 AllocatePluginDir( p_this, psz_fullpath, 5 );
824 free( psz_fullpath );
827 /* Free plugin-path */
831 /*****************************************************************************
832 * AllocatePluginDir: recursively parse a directory to look for plugins
833 *****************************************************************************/
834 static void AllocatePluginDir( vlc_object_t *p_this, const char *psz_dir,
837 /* FIXME: Needs to be ported to wide char on ALL Windows builds */
843 #if defined( UNDER_CE ) || defined( _MSC_VER )
845 wchar_t psz_wpath[MAX_PATH + 256];
846 wchar_t psz_wdir[MAX_PATH];
848 char psz_path[MAX_PATH + 256];
849 WIN32_FIND_DATA finddata;
855 struct dirent * file;
859 if( p_this->p_libvlc->b_die || i_maxdepth < 0 )
864 #if defined( UNDER_CE ) || defined( _MSC_VER )
866 MultiByteToWideChar( CP_ACP, 0, psz_dir, -1, psz_wdir, MAX_PATH );
868 rc = GetFileAttributes( psz_wdir );
869 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
871 /* Parse all files in the directory */
872 swprintf( psz_wpath, L"%ls\\*", psz_wdir );
874 rc = GetFileAttributes( psz_dir );
875 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
878 /* Parse all files in the directory */
879 sprintf( psz_path, "%s\\*", psz_dir );
882 handle = FindFirstFile( psz_wpath, &finddata );
884 handle = FindFirstFile( psz_path, &finddata );
886 if( handle == INVALID_HANDLE_VALUE )
888 /* Empty directory */
892 /* Parse the directory and try to load all files it contains. */
896 unsigned int i_len = wcslen( finddata.cFileName );
897 swprintf( psz_wpath, L"%ls\\%ls", psz_wdir, finddata.cFileName );
898 sprintf( psz_path, "%s\\%ls", psz_dir, finddata.cFileName );
900 unsigned int i_len = strlen( finddata.cFileName );
901 sprintf( psz_path, "%s\\%s", psz_dir, finddata.cFileName );
905 if( !*finddata.cFileName || !strcmp( finddata.cFileName, "." )
906 || !strcmp( finddata.cFileName, ".." ) )
908 if( !FindNextFile( handle, &finddata ) ) break;
913 if( GetFileAttributes( psz_wpath ) & FILE_ATTRIBUTE_DIRECTORY )
915 if( GetFileAttributes( psz_path ) & FILE_ATTRIBUTE_DIRECTORY )
918 AllocatePluginDir( p_this, psz_path, i_maxdepth - 1 );
920 else if( i_len > strlen( LIBEXT )
921 /* We only load files ending with LIBEXT */
922 && !strncasecmp( psz_path + strlen( psz_path)
924 LIBEXT, strlen( LIBEXT ) ) )
926 WIN32_FILE_ATTRIBUTE_DATA attrbuf;
927 int64_t i_time = 0, i_size = 0;
930 if( GetFileAttributesEx( psz_wpath, GetFileExInfoStandard,
933 if( GetFileAttributesEx( psz_path, GetFileExInfoStandard,
937 i_time = attrbuf.ftLastWriteTime.dwHighDateTime;
939 i_time |= attrbuf.ftLastWriteTime.dwLowDateTime;
940 i_size = attrbuf.nFileSizeHigh;
942 i_size |= attrbuf.nFileSizeLow;
946 AllocatePluginFile( p_this, psz_file, i_time, i_size );
949 while( !p_this->p_libvlc->b_die && FindNextFile( handle, &finddata ) );
951 /* Close the directory */
955 dir = opendir( psz_dir );
961 i_dirlen = strlen( psz_dir );
963 /* Parse the directory and try to load all files it contains. */
964 while( !p_this->p_libvlc->b_die && (file = readdir( dir )) )
971 if( !*file->d_name || !strcmp( file->d_name, "." )
972 || !strcmp( file->d_name, ".." ) )
977 i_len = strlen( file->d_name );
978 psz_file = malloc( i_dirlen + 1 + i_len + 1 );
980 sprintf( psz_file, "%s\\%s", psz_dir, file->d_name );
982 sprintf( psz_file, "%s/%s", psz_dir, file->d_name );
985 i_stat = stat( psz_file, &statbuf );
986 if( !i_stat && statbuf.st_mode & S_IFDIR )
988 AllocatePluginDir( p_this, psz_file, i_maxdepth - 1 );
990 else if( i_len > strlen( LIBEXT )
991 /* We only load files ending with LIBEXT */
992 && !strncasecmp( file->d_name + i_len - strlen( LIBEXT ),
993 LIBEXT, strlen( LIBEXT ) ) )
995 int64_t i_time = 0, i_size = 0;
999 i_time = statbuf.st_mtime;
1000 i_size = statbuf.st_size;
1003 AllocatePluginFile( p_this, psz_file, i_time, i_size );
1009 /* Close the directory */
1015 /*****************************************************************************
1016 * AllocatePluginFile: load a module into memory and initialize it.
1017 *****************************************************************************
1018 * This function loads a dynamically loadable module and allocates a structure
1019 * for its information data. The module can then be handled by module_Need
1020 * and module_Unneed. It can be removed by DeleteModule.
1021 *****************************************************************************/
1022 static int AllocatePluginFile( vlc_object_t * p_this, char * psz_file,
1023 int64_t i_file_time, int64_t i_file_size )
1025 module_t * p_module = NULL;
1026 module_cache_t *p_cache_entry = NULL;
1029 * Check our plugins cache first then load plugin if needed
1032 CacheFind( p_this, psz_file, i_file_time, i_file_size );
1034 if( !p_cache_entry )
1036 p_module = AllocatePlugin( p_this, psz_file );
1040 /* If junk dll, don't try to load it */
1041 if( p_cache_entry->b_junk )
1047 module_config_t *p_item = NULL, *p_end = NULL;
1049 p_module = p_cache_entry->p_module;
1050 p_module->b_loaded = VLC_FALSE;
1052 /* For now we force loading if the module's config contains
1053 * callbacks or actions.
1054 * Could be optimized by adding an API call.*/
1055 for( p_item = p_module->p_config, p_end = p_item + p_module->confsize;
1056 p_item < p_end; p_item++ )
1058 if( p_item->pf_callback || p_item->i_action )
1060 p_module = AllocatePlugin( p_this, psz_file );
1064 if( p_module == p_cache_entry->p_module )
1065 p_cache_entry->b_used = VLC_TRUE;
1071 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
1073 /* Everything worked fine !
1074 * The module is ready to be added to the list. */
1075 p_module->b_builtin = VLC_FALSE;
1077 /* msg_Dbg( p_this, "plugin \"%s\", %s",
1078 p_module->psz_object_name, p_module->psz_longname ); */
1080 vlc_object_attach( p_module, p_libvlc_global->p_module_bank );
1082 if( !p_libvlc_global->p_module_bank->b_cache )
1085 #define p_bank p_libvlc_global->p_module_bank
1086 /* Add entry to cache */
1088 realloc( p_bank->pp_cache, (p_bank->i_cache + 1) * sizeof(void *) );
1089 p_bank->pp_cache[p_bank->i_cache] = malloc( sizeof(module_cache_t) );
1090 if( !p_bank->pp_cache[p_bank->i_cache] )
1092 p_bank->pp_cache[p_bank->i_cache]->psz_file = strdup( psz_file );
1093 p_bank->pp_cache[p_bank->i_cache]->i_time = i_file_time;
1094 p_bank->pp_cache[p_bank->i_cache]->i_size = i_file_size;
1095 p_bank->pp_cache[p_bank->i_cache]->b_junk = p_module ? 0 : 1;
1096 p_bank->pp_cache[p_bank->i_cache]->b_used = VLC_TRUE;
1097 p_bank->pp_cache[p_bank->i_cache]->p_module = p_module;
1101 return p_module ? 0 : -1;
1104 /*****************************************************************************
1105 * AllocatePlugin: load a module into memory and initialize it.
1106 *****************************************************************************
1107 * This function loads a dynamically loadable module and allocates a structure
1108 * for its information data. The module can then be handled by module_Need
1109 * and module_Unneed. It can be removed by DeleteModule.
1110 *****************************************************************************/
1111 static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
1113 module_t * p_module = NULL;
1114 module_handle_t handle;
1116 if( LoadModule( p_this, psz_file, &handle ) )
1119 /* Now that we have successfully loaded the module, we can
1120 * allocate a structure for it */
1121 p_module = vlc_module_create( p_this );
1122 if( p_module == NULL )
1124 msg_Err( p_this, "out of memory" );
1125 CloseModule( handle );
1129 /* We need to fill these since they may be needed by CallEntry() */
1130 p_module->psz_filename = psz_file;
1131 p_module->handle = handle;
1132 p_module->b_loaded = VLC_TRUE;
1134 /* Initialize the module: fill p_module, default config */
1135 if( CallEntry( p_module ) != 0 )
1137 /* We couldn't call module_init() */
1138 vlc_object_destroy( p_module );
1139 CloseModule( handle );
1143 DupModule( p_module );
1144 p_module->psz_filename = strdup( p_module->psz_filename );
1146 /* Everything worked fine ! The module is ready to be added to the list. */
1147 p_module->b_builtin = VLC_FALSE;
1152 /*****************************************************************************
1153 * DupModule: make a plugin module standalone.
1154 *****************************************************************************
1155 * This function duplicates all strings in the module, so that the dynamic
1156 * object can be unloaded. It acts recursively on submodules.
1157 *****************************************************************************/
1158 static void DupModule( module_t *p_module )
1160 const char **pp_shortcut;
1163 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1165 *pp_shortcut = strdup( *pp_shortcut );
1168 /* We strdup() these entries so that they are still valid when the
1169 * module is unloaded. */
1170 p_module->psz_object_name = strdup( p_module->psz_object_name );
1171 p_module->psz_capability = strdup( p_module->psz_capability );
1172 p_module->psz_shortname = p_module->psz_shortname ?
1173 strdup( p_module->psz_shortname ) : NULL;
1174 p_module->psz_longname = strdup( p_module->psz_longname );
1175 p_module->psz_help = p_module->psz_help ? strdup( p_module->psz_help )
1178 if( p_module->psz_program != NULL )
1180 p_module->psz_program = strdup( p_module->psz_program );
1183 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1185 DupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1189 /*****************************************************************************
1190 * UndupModule: free a duplicated module.
1191 *****************************************************************************
1192 * This function frees the allocations done in DupModule().
1193 *****************************************************************************/
1194 static void UndupModule( module_t *p_module )
1196 const char **pp_shortcut;
1199 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1201 UndupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1204 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1206 free( (void*)*pp_shortcut );
1209 free( (void*)p_module->psz_object_name );
1210 free( p_module->psz_capability );
1211 free( (void*)p_module->psz_shortname );
1212 free( (void*)p_module->psz_longname );
1213 free( (void*)p_module->psz_help );
1214 free( (void*)p_module->psz_program );
1217 #endif /* HAVE_DYNAMIC_PLUGINS */
1219 /*****************************************************************************
1220 * AllocateBuiltinModule: initialize a builtin module.
1221 *****************************************************************************
1222 * This function registers a builtin module and allocates a structure
1223 * for its information data. The module can then be handled by module_Need
1224 * and module_Unneed. It can be removed by DeleteModule.
1225 *****************************************************************************/
1226 static int AllocateBuiltinModule( vlc_object_t * p_this,
1227 int ( *pf_entry ) ( module_t * ) )
1229 module_t * p_module;
1231 /* Now that we have successfully loaded the module, we can
1232 * allocate a structure for it */
1233 p_module = vlc_module_create( p_this );
1234 if( p_module == NULL )
1236 msg_Err( p_this, "out of memory" );
1240 /* Initialize the module : fill p_module->psz_object_name, etc. */
1241 if( pf_entry( p_module ) != 0 )
1243 /* With a well-written module we shouldn't have to print an
1244 * additional error message here, but just make sure. */
1245 msg_Err( p_this, "failed calling entry point in builtin module" );
1246 vlc_object_destroy( p_module );
1250 /* Everything worked fine ! The module is ready to be added to the list. */
1251 p_module->b_builtin = VLC_TRUE;
1253 /* msg_Dbg( p_this, "builtin \"%s\", %s",
1254 p_module->psz_object_name, p_module->psz_longname ); */
1256 vlc_object_attach( p_module, vlc_global( p_this )->p_module_bank );
1261 /*****************************************************************************
1262 * DeleteModule: delete a module and its structure.
1263 *****************************************************************************
1264 * This function can only be called if the module isn't being used.
1265 *****************************************************************************/
1266 static int DeleteModule( module_t * p_module, vlc_bool_t b_detach )
1268 if( !p_module ) return VLC_EGENERIC;
1270 vlc_object_detach( p_module );
1272 /* We free the structures that we strdup()ed in Allocate*Module(). */
1273 #ifdef HAVE_DYNAMIC_PLUGINS
1274 if( !p_module->b_builtin )
1276 if( p_module->b_loaded && p_module->b_unloadable )
1278 CloseModule( p_module->handle );
1280 UndupModule( p_module );
1281 free( p_module->psz_filename );
1285 /* Free and detach the object's children */
1286 while( p_module->i_children )
1288 vlc_object_t *p_this = p_module->pp_children[0];
1289 vlc_object_detach( p_this );
1290 vlc_object_destroy( p_this );
1293 config_Free( p_module );
1294 vlc_object_destroy( p_module );
1299 #ifdef HAVE_DYNAMIC_PLUGINS
1300 /*****************************************************************************
1301 * CallEntry: call an entry point.
1302 *****************************************************************************
1303 * This function calls a symbol given its name and a module structure. The
1304 * symbol MUST refer to a function returning int and taking a module_t* as
1306 *****************************************************************************/
1307 static int CallEntry( module_t * p_module )
1309 static const char psz_name[] = "vlc_entry" MODULE_SUFFIX;
1310 int (* pf_symbol) ( module_t * p_module );
1312 /* Try to resolve the symbol */
1313 pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
1315 if( pf_symbol == NULL )
1317 #if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
1318 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
1319 psz_name, p_module->psz_filename );
1320 #elif defined(HAVE_DL_WINDOWS)
1321 char *psz_error = GetWindowsError();
1322 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1323 psz_name, p_module->psz_filename, psz_error );
1325 #elif defined(HAVE_DL_DLOPEN)
1326 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1327 psz_name, p_module->psz_filename, dlerror() );
1328 #elif defined(HAVE_DL_SHL_LOAD)
1329 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1330 psz_name, p_module->psz_filename, strerror(errno) );
1332 # error "Something is wrong in modules.c"
1337 /* We can now try to call the symbol */
1338 if( pf_symbol( p_module ) != 0 )
1340 /* With a well-written module we shouldn't have to print an
1341 * additional error message here, but just make sure. */
1342 msg_Err( p_module, "Failed to call symbol \"%s\" in file `%s'",
1343 psz_name, p_module->psz_filename );
1347 /* Everything worked fine, we can return */
1351 /*****************************************************************************
1352 * LoadModule: loads a dynamic library
1353 *****************************************************************************
1354 * This function loads a dynamically linked library using a system dependant
1355 * method. Will return 0 on success as well as the module handle.
1356 *****************************************************************************/
1357 static int LoadModule( vlc_object_t *p_this, char *psz_file,
1358 module_handle_t *p_handle )
1360 module_handle_t handle;
1362 #if defined(HAVE_DL_DYLD)
1363 NSObjectFileImage image;
1364 NSObjectFileImageReturnCode ret;
1366 ret = NSCreateObjectFileImageFromFile( psz_file, &image );
1368 if( ret != NSObjectFileImageSuccess )
1370 msg_Warn( p_this, "cannot create image from `%s'", psz_file );
1374 /* Open the dynamic module */
1375 handle = NSLinkModule( image, psz_file,
1376 NSLINKMODULE_OPTION_RETURN_ON_ERROR );
1380 NSLinkEditErrors errors;
1381 const char *psz_file, *psz_err;
1383 NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
1384 msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
1385 NSDestroyObjectFileImage( image );
1389 /* Destroy our image, we won't need it */
1390 NSDestroyObjectFileImage( image );
1392 #elif defined(HAVE_DL_BEOS)
1393 handle = load_add_on( psz_file );
1396 msg_Warn( p_this, "cannot load module `%s'", psz_file );
1400 #elif defined(HAVE_DL_WINDOWS)
1403 wchar_t psz_wfile[MAX_PATH];
1404 MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
1405 handle = LoadLibrary( psz_wfile );
1408 handle = LoadLibrary( psz_file );
1410 if( handle == NULL )
1412 char *psz_err = GetWindowsError();
1413 msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
1418 #elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
1419 /* static is OK, we are called atomically */
1421 # if defined(SYS_LINUX)
1422 /* XXX HACK #1 - we should NOT open modules with RTLD_GLOBAL, or we
1423 * are going to get namespace collisions when two modules have common
1424 * public symbols, but ALSA is being a pest here. */
1425 if( strstr( psz_file, "alsa_plugin" ) )
1427 handle = dlopen( psz_file, RTLD_NOW | RTLD_GLOBAL );
1428 if( handle == NULL )
1430 msg_Warn( p_this, "cannot load module `%s' (%s)",
1431 psz_file, dlerror() );
1437 handle = dlopen( psz_file, RTLD_NOW );
1438 if( handle == NULL )
1440 msg_Warn( p_this, "cannot load module `%s' (%s)",
1441 psz_file, dlerror() );
1445 #elif defined(HAVE_DL_DLOPEN)
1446 # if defined(DL_LAZY)
1447 handle = dlopen( psz_file, DL_LAZY );
1449 handle = dlopen( psz_file, 0 );
1451 if( handle == NULL )
1453 msg_Warn( p_this, "cannot load module `%s' (%s)",
1454 psz_file, dlerror() );
1458 #elif defined(HAVE_DL_SHL_LOAD)
1459 handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
1460 if( handle == NULL )
1462 msg_Warn( p_this, "cannot load module `%s' (%s)",
1463 psz_file, strerror(errno) );
1468 # error "Something is wrong in modules.c"
1476 /*****************************************************************************
1477 * CloseModule: unload a dynamic library
1478 *****************************************************************************
1479 * This function unloads a previously opened dynamically linked library
1480 * using a system dependant method. No return value is taken in consideration,
1481 * since some libraries sometimes refuse to close properly.
1482 *****************************************************************************/
1483 static void CloseModule( module_handle_t handle )
1485 #if defined(HAVE_DL_DYLD)
1486 NSUnLinkModule( handle, FALSE );
1488 #elif defined(HAVE_DL_BEOS)
1489 unload_add_on( handle );
1491 #elif defined(HAVE_DL_WINDOWS)
1492 FreeLibrary( handle );
1494 #elif defined(HAVE_DL_DLOPEN)
1499 #elif defined(HAVE_DL_SHL_LOAD)
1500 shl_unload( handle );
1506 /*****************************************************************************
1507 * GetSymbol: get a symbol from a dynamic library
1508 *****************************************************************************
1509 * This function queries a loaded library for a symbol specified in a
1510 * string, and returns a pointer to it. We don't check for dlerror() or
1511 * similar functions, since we want a non-NULL symbol anyway.
1512 *****************************************************************************/
1513 static void * _module_getsymbol( module_handle_t, const char * );
1515 static void * GetSymbol( module_handle_t handle, const char * psz_function )
1517 void * p_symbol = _module_getsymbol( handle, psz_function );
1519 /* MacOS X dl library expects symbols to begin with "_". So do
1520 * some other operating systems. That's really lame, but hey, what
1522 if( p_symbol == NULL )
1524 char psz_call[strlen( psz_function ) + 2];
1526 psz_call[ 0 ] = '_';
1527 memcpy( psz_call + 1, psz_function, sizeof (psz_call) - 1 );
1528 p_symbol = _module_getsymbol( handle, psz_call );
1534 static void * _module_getsymbol( module_handle_t handle,
1535 const char * psz_function )
1537 #if defined(HAVE_DL_DYLD)
1538 NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
1539 return NSAddressOfSymbol( sym );
1541 #elif defined(HAVE_DL_BEOS)
1543 if( B_OK == get_image_symbol( handle, psz_function,
1544 B_SYMBOL_TYPE_TEXT, &p_symbol ) )
1553 #elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
1554 wchar_t psz_real[256];
1555 MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
1557 return (void *)GetProcAddress( handle, psz_real );
1559 #elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
1560 return (void *)GetProcAddress( handle, (char *)psz_function );
1562 #elif defined(HAVE_DL_DLOPEN)
1563 return dlsym( handle, psz_function );
1565 #elif defined(HAVE_DL_SHL_LOAD)
1567 shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
1573 #if defined(HAVE_DL_WINDOWS)
1574 static char * GetWindowsError( void )
1576 #if defined(UNDER_CE)
1577 wchar_t psz_tmp[MAX_PATH];
1578 char * psz_buffer = malloc( MAX_PATH );
1580 char * psz_tmp = malloc( MAX_PATH );
1582 int i = 0, i_error = GetLastError();
1584 FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
1585 NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
1586 (LPTSTR)psz_tmp, MAX_PATH, NULL );
1588 /* Go to the end of the string */
1589 while( psz_tmp[i] && psz_tmp[i] != _T('\r') && psz_tmp[i] != _T('\n') )
1596 #if defined(UNDER_CE)
1597 swprintf( psz_tmp + i, L" (error %i)", i_error );
1598 psz_tmp[ 255 ] = L'\0';
1600 snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
1601 psz_tmp[ 255 ] = '\0';
1605 #if defined(UNDER_CE)
1606 wcstombs( psz_buffer, psz_tmp, MAX_PATH );
1612 #endif /* HAVE_DL_WINDOWS */
1614 /*****************************************************************************
1615 * LoadPluginsCache: loads the plugins cache file
1616 *****************************************************************************
1617 * This function will load the plugin cache if present and valid. This cache
1618 * will in turn be queried by AllocateAllPlugins() to see if it needs to
1619 * actually load the dynamically loadable module.
1620 * This allows us to only fully load plugins when they are actually used.
1621 *****************************************************************************/
1622 static void CacheLoad( vlc_object_t *p_this )
1624 char *psz_filename, *psz_homedir;
1626 int i, j, i_size, i_read;
1627 char p_cachestring[sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE)];
1628 char p_cachelang[6], p_lang[6];
1630 module_cache_t **pp_cache = 0;
1631 int32_t i_file_size, i_marker;
1632 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
1634 psz_homedir = p_this->p_libvlc->psz_homedir;
1637 msg_Err( p_this, "psz_homedir is null" );
1641 i_size = asprintf( &psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1642 PLUGINSCACHE_DIR, CacheName() );
1645 msg_Err( p_this, "out of memory" );
1649 if( p_libvlc_global->p_module_bank->b_cache_delete )
1651 #if !defined( UNDER_CE )
1652 unlink( psz_filename );
1654 wchar_t psz_wf[MAX_PATH];
1655 MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
1656 DeleteFile( psz_wf );
1658 msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
1659 free( psz_filename );
1663 msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
1665 file = utf8_fopen( psz_filename, "rb" );
1668 msg_Warn( p_this, "could not open plugins cache file %s for reading",
1670 free( psz_filename );
1673 free( psz_filename );
1675 /* Check the file size */
1676 i_read = fread( &i_file_size, 1, sizeof(i_file_size), file );
1677 if( i_read != sizeof(i_file_size) )
1679 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1685 fseek( file, 0, SEEK_END );
1686 if( ftell( file ) != i_file_size )
1688 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1689 "(corrupted size)" );
1693 fseek( file, sizeof(i_file_size), SEEK_SET );
1695 /* Check the file is a plugins cache */
1696 i_size = sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE) - 1;
1697 i_read = fread( p_cachestring, 1, i_size, file );
1698 if( i_read != i_size ||
1699 memcmp( p_cachestring, PLUGINSCACHE_DIR COPYRIGHT_MESSAGE, i_size ) )
1701 msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
1706 /* Check Sub-version number */
1707 i_read = fread( &i_marker, 1, sizeof(i_marker), file );
1708 if( i_read != sizeof(i_marker) || i_marker != CACHE_SUBVERSION_NUM )
1710 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1711 "(corrupted header)" );
1716 /* Check the language hasn't changed */
1717 sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
1718 i_read = fread( p_cachelang, 1, i_size, file );
1719 if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
1721 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1722 "(language changed)" );
1727 /* Check header marker */
1728 i_read = fread( &i_marker, 1, sizeof(i_marker), file );
1729 if( i_read != sizeof(i_marker) ||
1730 i_marker != ftell( file ) - (int)sizeof(i_marker) )
1732 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1733 "(corrupted header)" );
1738 p_libvlc_global->p_module_bank->i_loaded_cache = 0;
1739 if (fread( &i_cache, 1, sizeof(i_cache), file ) != sizeof(i_cache) )
1741 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1742 "(file too short)" );
1748 pp_cache = p_libvlc_global->p_module_bank->pp_loaded_cache =
1749 malloc( i_cache * sizeof(void *) );
1751 #define LOAD_IMMEDIATE(a) \
1752 if( fread( (void *)&a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
1753 #define LOAD_STRING(a) \
1756 if( ( fread( &i_size, sizeof(i_size), 1, file ) != 1 ) \
1757 || ( i_size > 16384 ) ) \
1760 char *psz = malloc( i_size ); \
1761 if( fread( psz, i_size, 1, file ) != 1 ) { \
1765 if( psz[i_size-1] ) { \
1773 for( i = 0; i < i_cache; i++ )
1778 pp_cache[i] = malloc( sizeof(module_cache_t) );
1779 p_libvlc_global->p_module_bank->i_loaded_cache++;
1781 /* Load common info */
1782 LOAD_STRING( pp_cache[i]->psz_file );
1783 LOAD_IMMEDIATE( pp_cache[i]->i_time );
1784 LOAD_IMMEDIATE( pp_cache[i]->i_size );
1785 LOAD_IMMEDIATE( pp_cache[i]->b_junk );
1786 pp_cache[i]->b_used = VLC_FALSE;
1788 if( pp_cache[i]->b_junk ) continue;
1790 pp_cache[i]->p_module = vlc_module_create( p_this );
1792 /* Load additional infos */
1793 LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
1794 LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
1795 LOAD_STRING( pp_cache[i]->p_module->psz_longname );
1796 LOAD_STRING( pp_cache[i]->p_module->psz_help );
1797 LOAD_STRING( pp_cache[i]->p_module->psz_program );
1798 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1800 LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
1802 LOAD_STRING( pp_cache[i]->p_module->psz_capability );
1803 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
1804 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
1805 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
1806 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
1807 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
1810 if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
1813 LOAD_STRING( pp_cache[i]->p_module->psz_filename );
1815 LOAD_IMMEDIATE( i_submodules );
1817 while( i_submodules-- )
1819 module_t *p_module = vlc_submodule_create( pp_cache[i]->p_module );
1820 LOAD_STRING( p_module->psz_object_name );
1821 LOAD_STRING( p_module->psz_shortname );
1822 LOAD_STRING( p_module->psz_longname );
1823 LOAD_STRING( p_module->psz_help );
1824 LOAD_STRING( p_module->psz_program );
1825 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1827 LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
1829 LOAD_STRING( p_module->psz_capability );
1830 LOAD_IMMEDIATE( p_module->i_score );
1831 LOAD_IMMEDIATE( p_module->i_cpu );
1832 LOAD_IMMEDIATE( p_module->b_unloadable );
1833 LOAD_IMMEDIATE( p_module->b_reentrant );
1842 msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
1845 p_libvlc_global->p_module_bank->i_loaded_cache = 0;
1852 int CacheLoadConfig( module_t *p_module, FILE *file )
1857 /* Calculate the structure length */
1858 LOAD_IMMEDIATE( p_module->i_config_items );
1859 LOAD_IMMEDIATE( p_module->i_bool_items );
1861 LOAD_IMMEDIATE( i_lines );
1863 /* Allocate memory */
1866 p_module->p_config =
1867 (module_config_t *)calloc( i_lines, sizeof(module_config_t) );
1868 if( p_module->p_config == NULL )
1870 p_module->confsize = 0;
1871 msg_Err( p_module, "config error: can't duplicate p_config" );
1875 p_module->confsize = i_lines;
1877 /* Do the duplication job */
1878 for (size_t i = 0; i < i_lines; i++ )
1880 LOAD_IMMEDIATE( p_module->p_config[i] );
1882 LOAD_STRING( p_module->p_config[i].psz_type );
1883 LOAD_STRING( p_module->p_config[i].psz_name );
1884 LOAD_STRING( p_module->p_config[i].psz_text );
1885 LOAD_STRING( p_module->p_config[i].psz_longtext );
1886 LOAD_STRING( p_module->p_config[i].psz_current );
1888 if (IsConfigStringType (p_module->p_config[i].i_type))
1890 LOAD_STRING (p_module->p_config[i].orig.psz);
1891 p_module->p_config[i].value.psz =
1892 (p_module->p_config[i].orig.psz != NULL)
1893 ? strdup (p_module->p_config[i].orig.psz) : NULL;
1894 p_module->p_config[i].saved.psz = NULL;
1898 memcpy (&p_module->p_config[i].value, &p_module->p_config[i].orig,
1899 sizeof (p_module->p_config[i].value));
1900 memcpy (&p_module->p_config[i].saved, &p_module->p_config[i].orig,
1901 sizeof (p_module->p_config[i].saved));
1904 p_module->p_config[i].b_dirty = VLC_FALSE;
1906 p_module->p_config[i].p_lock = &p_module->object_lock;
1908 if( p_module->p_config[i].i_list )
1910 if( p_module->p_config[i].ppsz_list )
1913 p_module->p_config[i].ppsz_list =
1914 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1915 if( p_module->p_config[i].ppsz_list )
1917 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1918 LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
1919 p_module->p_config[i].ppsz_list[j] = NULL;
1922 if( p_module->p_config[i].ppsz_list_text )
1925 p_module->p_config[i].ppsz_list_text =
1926 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1927 if( p_module->p_config[i].ppsz_list_text )
1929 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1930 LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
1931 p_module->p_config[i].ppsz_list_text[j] = NULL;
1934 if( p_module->p_config[i].pi_list )
1936 p_module->p_config[i].pi_list =
1937 malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
1938 if( p_module->p_config[i].pi_list )
1940 for (int j = 0; j < p_module->p_config[i].i_list; j++)
1941 LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
1946 if( p_module->p_config[i].i_action )
1948 p_module->p_config[i].ppf_action =
1949 malloc( p_module->p_config[i].i_action * sizeof(void *) );
1950 p_module->p_config[i].ppsz_action_text =
1951 malloc( p_module->p_config[i].i_action * sizeof(char *) );
1953 for (int j = 0; j < p_module->p_config[i].i_action; j++)
1955 p_module->p_config[i].ppf_action[j] = 0;
1956 LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
1960 LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
1967 return VLC_EGENERIC;
1970 /*****************************************************************************
1971 * SavePluginsCache: saves the plugins cache to a file
1972 *****************************************************************************/
1973 static void CacheSave( vlc_object_t *p_this )
1975 static char const psz_tag[] =
1976 "Signature: 8a477f597d28d172789f06886806bc55\r\n"
1977 "# This file is a cache directory tag created by VLC.\r\n"
1978 "# For information about cache directory tags, see:\r\n"
1979 "# http://www.brynosaurus.com/cachedir/\r\n";
1981 char *psz_filename, *psz_homedir;
1984 module_cache_t **pp_cache;
1985 int32_t i_file_size = 0;
1986 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
1988 psz_homedir = p_this->p_libvlc->psz_homedir;
1991 msg_Err( p_this, "psz_homedir is null" );
1995 (char *)malloc( sizeof("/" CONFIG_DIR "/" PLUGINSCACHE_DIR "/" ) +
1996 strlen(psz_homedir) + strlen(CacheName()) );
2000 msg_Err( p_this, "out of memory" );
2004 sprintf( psz_filename, "%s/%s", psz_homedir, CONFIG_DIR );
2006 config_CreateDir( p_this, psz_filename );
2008 strcat( psz_filename, "/" PLUGINSCACHE_DIR );
2010 config_CreateDir( p_this, psz_filename );
2012 strcat( psz_filename, "/CACHEDIR.TAG" );
2014 file = utf8_fopen( psz_filename, "wb" );
2017 fwrite( psz_tag, 1, strlen(psz_tag), file );
2021 sprintf( psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
2022 PLUGINSCACHE_DIR, CacheName() );
2024 msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
2026 file = utf8_fopen( psz_filename, "wb" );
2029 msg_Warn( p_this, "could not open plugins cache file %s for writing",
2031 free( psz_filename );
2034 free( psz_filename );
2036 /* Empty space for file size */
2037 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2039 /* Contains version number */
2040 fprintf( file, "%s", PLUGINSCACHE_DIR COPYRIGHT_MESSAGE );
2042 /* Sub-version number (to avoid breakage in the dev version when cache
2043 * structure changes) */
2044 i_file_size = CACHE_SUBVERSION_NUM;
2045 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2048 fprintf( file, "%5.5s", _("C") );
2051 i_file_size = ftell( file );
2052 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2054 i_cache = p_libvlc_global->p_module_bank->i_cache;
2055 pp_cache = p_libvlc_global->p_module_bank->pp_cache;
2057 fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
2059 #define SAVE_IMMEDIATE(a) \
2060 fwrite( &a, sizeof(char), sizeof(a), file )
2061 #define SAVE_STRING(a) \
2062 { i_size = a ? strlen( a ) + 1 : 0; \
2063 fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
2064 if( a ) fwrite( a, sizeof(char), i_size, file ); \
2067 for( i = 0; i < i_cache; i++ )
2070 uint32_t i_submodule;
2072 /* Save common info */
2073 SAVE_STRING( pp_cache[i]->psz_file );
2074 SAVE_IMMEDIATE( pp_cache[i]->i_time );
2075 SAVE_IMMEDIATE( pp_cache[i]->i_size );
2076 SAVE_IMMEDIATE( pp_cache[i]->b_junk );
2078 if( pp_cache[i]->b_junk ) continue;
2080 /* Save additional infos */
2081 SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
2082 SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
2083 SAVE_STRING( pp_cache[i]->p_module->psz_longname );
2084 SAVE_STRING( pp_cache[i]->p_module->psz_help );
2085 SAVE_STRING( pp_cache[i]->p_module->psz_program );
2086 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2088 SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
2090 SAVE_STRING( pp_cache[i]->p_module->psz_capability );
2091 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
2092 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
2093 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
2094 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
2095 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
2098 CacheSaveConfig( pp_cache[i]->p_module, file );
2100 SAVE_STRING( pp_cache[i]->p_module->psz_filename );
2102 i_submodule = pp_cache[i]->p_module->i_children;
2103 SAVE_IMMEDIATE( i_submodule );
2104 for( i_submodule = 0;
2105 i_submodule < (unsigned)pp_cache[i]->p_module->i_children;
2108 module_t *p_module =
2109 (module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
2111 SAVE_STRING( p_module->psz_object_name );
2112 SAVE_STRING( p_module->psz_shortname );
2113 SAVE_STRING( p_module->psz_longname );
2114 SAVE_STRING( p_module->psz_help );
2115 SAVE_STRING( p_module->psz_program );
2116 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2118 SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
2120 SAVE_STRING( p_module->psz_capability );
2121 SAVE_IMMEDIATE( p_module->i_score );
2122 SAVE_IMMEDIATE( p_module->i_cpu );
2123 SAVE_IMMEDIATE( p_module->b_unloadable );
2124 SAVE_IMMEDIATE( p_module->b_reentrant );
2128 /* Fill-up file size */
2129 i_file_size = ftell( file );
2130 fseek( file, 0, SEEK_SET );
2131 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2138 void CacheSaveConfig( module_t *p_module, FILE *file )
2140 uint32_t i_lines = p_module->confsize;
2143 SAVE_IMMEDIATE( p_module->i_config_items );
2144 SAVE_IMMEDIATE( p_module->i_bool_items );
2145 SAVE_IMMEDIATE( i_lines );
2147 for (size_t i = 0; i < i_lines ; i++)
2149 SAVE_IMMEDIATE( p_module->p_config[i] );
2151 SAVE_STRING( p_module->p_config[i].psz_type );
2152 SAVE_STRING( p_module->p_config[i].psz_name );
2153 SAVE_STRING( p_module->p_config[i].psz_text );
2154 SAVE_STRING( p_module->p_config[i].psz_longtext );
2155 SAVE_STRING( p_module->p_config[i].psz_current );
2156 if (IsConfigStringType (p_module->p_config[i].i_type))
2157 SAVE_STRING( p_module->p_config[i].orig.psz );
2159 if( p_module->p_config[i].i_list )
2161 if( p_module->p_config[i].ppsz_list )
2163 for (int j = 0; j < p_module->p_config[i].i_list; j++)
2164 SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
2167 if( p_module->p_config[i].ppsz_list_text )
2169 for (int j = 0; j < p_module->p_config[i].i_list; j++)
2170 SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
2172 if( p_module->p_config[i].pi_list )
2174 for (int j = 0; j < p_module->p_config[i].i_list; j++)
2175 SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
2179 for (int j = 0; j < p_module->p_config[i].i_action; j++)
2180 SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
2182 SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
2186 /*****************************************************************************
2187 * CacheName: Return the cache file name for this platform.
2188 *****************************************************************************/
2189 static char *CacheName( void )
2191 static char psz_cachename[32];
2193 /* Code int size, pointer size and endianness in the filename */
2194 int32_t x = 0xbe00001e;
2195 sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", (int)sizeof(int),
2196 (int)sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
2197 return psz_cachename;
2200 /*****************************************************************************
2201 * CacheMerge: Merge a cache module descriptor with a full module descriptor.
2202 *****************************************************************************/
2203 static void CacheMerge( vlc_object_t *p_this, module_t *p_cache,
2204 module_t *p_module )
2209 p_cache->pf_activate = p_module->pf_activate;
2210 p_cache->pf_deactivate = p_module->pf_deactivate;
2211 p_cache->handle = p_module->handle;
2213 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
2215 module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
2216 module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
2217 p_cchild->pf_activate = p_child->pf_activate;
2218 p_cchild->pf_deactivate = p_child->pf_deactivate;
2221 p_cache->b_loaded = VLC_TRUE;
2222 p_module->b_loaded = VLC_FALSE;
2225 /*****************************************************************************
2226 * CacheFind: finds the cache entry corresponding to a file
2227 *****************************************************************************/
2228 static module_cache_t *CacheFind( vlc_object_t *p_this, char *psz_file,
2229 int64_t i_time, int64_t i_size )
2231 module_cache_t **pp_cache;
2233 libvlc_global_data_t *p_libvlc_global = vlc_global( p_this );
2235 pp_cache = p_libvlc_global->p_module_bank->pp_loaded_cache;
2236 i_cache = p_libvlc_global->p_module_bank->i_loaded_cache;
2238 for( i = 0; i < i_cache; i++ )
2240 if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
2241 pp_cache[i]->i_time == i_time &&
2242 pp_cache[i]->i_size == i_size ) return pp_cache[i];
2248 #endif /* HAVE_DYNAMIC_PLUGINS */