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 #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 "vlc_error.h"
81 #include "vlc_interface.h"
82 #include "intf_eject.h"
84 #include "vlc_playlist.h"
86 #include "vlc_video.h"
87 #include "video_output.h"
88 #include "vout_synchro.h"
91 #include "audio_output.h"
92 #include "aout_internal.h"
94 #include "stream_output.h"
96 #include "vlc_httpd.h"
100 #include "iso_lang.h"
103 #include "vlc_block.h"
107 #include "vlc_image.h"
109 #ifdef HAVE_DYNAMIC_PLUGINS
110 # include "modules_plugin.h"
113 #if defined( _MSC_VER ) && defined( UNDER_CE )
114 # include "modules_builtin_evc.h"
115 #elif defined( _MSC_VER )
116 # include "modules_builtin_msvc.h"
118 # include "modules_builtin.h"
122 #if defined( WIN32 ) || defined( UNDER_CE )
123 /* Avoid name collisions */
124 # define LoadModule(a,b,c) _LoadModule(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 * );
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 );
159 /* Sub-version number
160 * (only used to avoid breakage in dev version when cache structure changes) */
161 #define CACHE_SUBVERSION_NUM 1
163 /*****************************************************************************
164 * module_InitBank: create the module bank.
165 *****************************************************************************
166 * This function creates a module bank structure which will be filled later
167 * on with all the modules found.
168 *****************************************************************************/
169 void __module_InitBank( vlc_object_t *p_this )
171 module_bank_t *p_bank;
174 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
175 var_Get( p_this->p_libvlc, "libvlc", &lockval );
176 vlc_mutex_lock( lockval.p_address );
177 if( p_this->p_libvlc->p_module_bank )
179 p_this->p_libvlc->p_module_bank->i_usage++;
180 vlc_mutex_unlock( lockval.p_address );
181 var_Destroy( p_this->p_libvlc, "libvlc" );
184 vlc_mutex_unlock( lockval.p_address );
185 var_Destroy( p_this->p_libvlc, "libvlc" );
187 p_bank = vlc_object_create( p_this, sizeof(module_bank_t) );
188 p_bank->psz_object_name = "module bank";
190 p_bank->i_cache = p_bank->i_loaded_cache = 0;
191 p_bank->pp_cache = p_bank->pp_loaded_cache = 0;
192 p_bank->b_cache = p_bank->b_cache_dirty =
193 p_bank->b_cache_delete = VLC_FALSE;
196 * Store the symbols to be exported
198 #ifdef HAVE_DYNAMIC_PLUGINS
199 STORE_SYMBOLS( &p_bank->symbols );
202 /* Everything worked, attach the object */
203 p_this->p_libvlc->p_module_bank = p_bank;
204 vlc_object_attach( p_bank, p_this->p_libvlc );
206 module_LoadMain( p_this );
211 /*****************************************************************************
212 * module_ResetBank: reset the module bank.
213 *****************************************************************************
214 * This function resets the module bank by unloading all unused plugin
216 *****************************************************************************/
217 void __module_ResetBank( vlc_object_t *p_this )
219 msg_Err( p_this, "FIXME: module_ResetBank unimplemented" );
223 /*****************************************************************************
224 * module_EndBank: empty the module bank.
225 *****************************************************************************
226 * This function unloads all unused plugin modules and empties the module
227 * bank in case of success.
228 *****************************************************************************/
229 void __module_EndBank( vlc_object_t *p_this )
234 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
235 var_Get( p_this->p_libvlc, "libvlc", &lockval );
236 vlc_mutex_lock( lockval.p_address );
237 if( !p_this->p_libvlc->p_module_bank )
239 vlc_mutex_unlock( lockval.p_address );
240 var_Destroy( p_this->p_libvlc, "libvlc" );
243 if( --p_this->p_libvlc->p_module_bank->i_usage )
245 vlc_mutex_unlock( lockval.p_address );
246 var_Destroy( p_this->p_libvlc, "libvlc" );
249 vlc_mutex_unlock( lockval.p_address );
250 var_Destroy( p_this->p_libvlc, "libvlc" );
252 config_AutoSaveConfigFile( p_this );
254 #ifdef HAVE_DYNAMIC_PLUGINS
255 #define p_bank p_this->p_libvlc->p_module_bank
256 if( p_bank->b_cache ) CacheSave( p_this );
257 while( p_bank->i_loaded_cache-- )
259 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->psz_file );
260 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache] );
261 if( !p_bank->i_loaded_cache ) free( p_bank->pp_loaded_cache );
263 while( p_bank->i_cache-- )
265 free( p_bank->pp_cache[p_bank->i_cache]->psz_file );
266 free( p_bank->pp_cache[p_bank->i_cache] );
267 if( !p_bank->i_cache ) free( p_bank->pp_cache );
272 vlc_object_detach( p_this->p_libvlc->p_module_bank );
274 while( p_this->p_libvlc->p_module_bank->i_children )
276 p_next = (module_t *)p_this->p_libvlc->p_module_bank->pp_children[0];
278 if( DeleteModule( p_next ) )
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_this->p_libvlc->p_module_bank );
291 p_this->p_libvlc->p_module_bank = NULL;
296 /*****************************************************************************
297 * module_LoadMain: load the main program info into the module bank.
298 *****************************************************************************
299 * This function fills the module bank structure with the main module infos.
300 * This is very useful as it will allow us to consider the main program just
301 * as another module, and for instance the configuration options of main will
302 * be available in the module bank structure just as for every other module.
303 *****************************************************************************/
304 void __module_LoadMain( vlc_object_t *p_this )
308 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
309 var_Get( p_this->p_libvlc, "libvlc", &lockval );
310 vlc_mutex_lock( lockval.p_address );
311 if( p_this->p_libvlc->p_module_bank->b_main )
313 vlc_mutex_unlock( lockval.p_address );
314 var_Destroy( p_this->p_libvlc, "libvlc" );
317 p_this->p_libvlc->p_module_bank->b_main = VLC_TRUE;
318 vlc_mutex_unlock( lockval.p_address );
319 var_Destroy( p_this->p_libvlc, "libvlc" );
321 AllocateBuiltinModule( p_this, vlc_entry__main );
324 /*****************************************************************************
325 * module_LoadBuiltins: load all modules which we built with.
326 *****************************************************************************
327 * This function fills the module bank structure with the builtin modules.
328 *****************************************************************************/
329 void __module_LoadBuiltins( vlc_object_t * p_this )
333 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
334 var_Get( p_this->p_libvlc, "libvlc", &lockval );
335 vlc_mutex_lock( lockval.p_address );
336 if( p_this->p_libvlc->p_module_bank->b_builtins )
338 vlc_mutex_unlock( lockval.p_address );
339 var_Destroy( p_this->p_libvlc, "libvlc" );
342 p_this->p_libvlc->p_module_bank->b_builtins = VLC_TRUE;
343 vlc_mutex_unlock( lockval.p_address );
344 var_Destroy( p_this->p_libvlc, "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
360 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
361 var_Get( p_this->p_libvlc, "libvlc", &lockval );
362 vlc_mutex_lock( lockval.p_address );
363 if( p_this->p_libvlc->p_module_bank->b_plugins )
365 vlc_mutex_unlock( lockval.p_address );
366 var_Destroy( p_this->p_libvlc, "libvlc" );
369 p_this->p_libvlc->p_module_bank->b_plugins = VLC_TRUE;
370 vlc_mutex_unlock( lockval.p_address );
371 var_Destroy( p_this->p_libvlc, "libvlc" );
373 msg_Dbg( p_this, "checking plugin modules" );
375 if( config_GetInt( p_this, "plugins-cache" ) )
376 p_this->p_libvlc->p_module_bank->b_cache = VLC_TRUE;
378 if( p_this->p_libvlc->p_module_bank->b_cache ||
379 p_this->p_libvlc->p_module_bank->b_cache_delete ) CacheLoad( p_this );
381 AllocateAllPlugins( p_this );
385 /*****************************************************************************
386 * module_Need: return the best module function, given a capability list.
387 *****************************************************************************
388 * This function returns the module that best fits the asked capabilities.
389 *****************************************************************************/
390 module_t * __module_Need( vlc_object_t *p_this, const char *psz_capability,
391 const char *psz_name, vlc_bool_t b_strict )
393 typedef struct module_list_t module_list_t;
400 module_list_t *p_next;
403 module_list_t *p_list, *p_first, *p_tmp;
406 int i_which_module, i_index = 0;
407 vlc_bool_t b_intf = VLC_FALSE;
412 char *psz_shortcuts = NULL, *psz_var = NULL;
413 vlc_bool_t b_force_backup = p_this->b_force;
416 /* Deal with variables */
417 if( psz_name && psz_name[0] == '$' )
420 var_Create( p_this, psz_name + 1, VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
421 var_Get( p_this, psz_name + 1, &val );
422 psz_var = val.psz_string;
426 /* Count how many different shortcuts were asked for */
427 if( psz_name && *psz_name )
429 char *psz_parser, *psz_last_shortcut;
431 /* If the user wants none, give him none. */
432 if( !strcmp( psz_name, "none" ) )
434 if( psz_var ) free( psz_var );
439 psz_shortcuts = psz_last_shortcut = strdup( psz_name );
441 for( psz_parser = psz_shortcuts; *psz_parser; psz_parser++ )
443 if( *psz_parser == ',' )
447 psz_last_shortcut = psz_parser + 1;
451 /* Check if the user wants to override the "strict" mode */
452 if( psz_last_shortcut )
454 if( !strcmp(psz_last_shortcut, "none") )
459 else if( !strcmp(psz_last_shortcut, "any") )
461 b_strict = VLC_FALSE;
467 /* Sort the modules and test them */
468 p_all = vlc_list_find( p_this, VLC_OBJECT_MODULE, FIND_ANYWHERE );
469 p_list = malloc( p_all->i_count * sizeof( module_list_t ) );
472 /* Parse the module list for capabilities and probe each of them */
473 for( i_which_module = 0; i_which_module < p_all->i_count; i_which_module++ )
475 int i_shortcut_bonus = 0;
477 p_module = (module_t *)p_all->p_values[i_which_module].p_object;
479 /* Test that this module can do what we need */
480 if( strcmp( p_module->psz_capability, psz_capability ) )
482 /* Don't recurse through the sub-modules because vlc_list_find()
483 * will list them anyway. */
487 /* Test if we have the required CPU */
488 if( (p_module->i_cpu & p_this->p_libvlc->i_cpu) != p_module->i_cpu )
493 /* If we required a shortcut, check this plugin provides it. */
494 if( i_shortcuts > 0 )
497 int i_dummy, i_short = i_shortcuts;
498 char *psz_name = psz_shortcuts;
500 /* Let's drop modules with a <= 0 score (unless they are
501 * explicitly requested) */
502 b_trash = p_module->i_score <= 0;
506 for( i_dummy = 0; p_module->pp_shortcuts[i_dummy]; i_dummy++ )
508 if( !strcasecmp( psz_name,
509 p_module->pp_shortcuts[i_dummy] ) )
513 i_shortcut_bonus = i_short * 10000;
518 if( i_shortcut_bonus )
520 /* We found it... remember ? */
524 /* Go to the next shortcut... This is so lame! */
533 /* If we are in "strict" mode and we couldn't
534 * find the module in the list of provided shortcuts,
535 * then kick the bastard out of here!!! */
536 if( i_short == 0 && b_strict )
546 /* If we didn't require a shortcut, trash <= 0 scored plugins */
547 else if( p_module->i_score <= 0 )
552 /* Special case: test if we requested a particular intf plugin */
553 if( !i_shortcuts && p_module->psz_program
554 && !strcmp( psz_capability, "interface" )
555 && !strcmp( p_module->psz_program,
556 p_this->p_vlc->psz_object_name ) )
560 /* Remove previous non-matching plugins */
567 /* This one doesn't match */
571 /* Store this new module */
572 p_list[ i_index ].p_module = p_module;
573 p_list[ i_index ].i_score = p_module->i_score + i_shortcut_bonus;
574 p_list[ i_index ].b_force = !!i_shortcut_bonus;
576 /* Add it to the modules-to-probe list */
579 p_list[ 0 ].p_next = NULL;
584 /* Ok, so at school you learned that quicksort is quick, and
585 * bubble sort sucks raw eggs. But that's when dealing with
586 * thousands of items. Here we have barely 50. */
587 module_list_t *p_newlist = p_first;
589 if( p_first->i_score < p_list[ i_index ].i_score )
591 p_list[ i_index ].p_next = p_first;
592 p_first = &p_list[ i_index ];
596 while( p_newlist->p_next != NULL &&
597 p_newlist->p_next->i_score >= p_list[ i_index ].i_score )
599 p_newlist = p_newlist->p_next;
602 p_list[ i_index ].p_next = p_newlist->p_next;
603 p_newlist->p_next = &p_list[ i_index ];
610 msg_Dbg( p_this, "looking for %s module: %i candidate%s", psz_capability,
611 i_index, i_index == 1 ? "" : "s" );
613 /* Lock all candidate modules */
615 while( p_tmp != NULL )
617 vlc_object_yield( p_tmp->p_module );
618 p_tmp = p_tmp->p_next;
621 /* We can release the list, interesting modules were yielded */
622 vlc_list_release( p_all );
624 /* Parse the linked list and use the first successful module */
626 while( p_tmp != NULL )
628 #ifdef HAVE_DYNAMIC_PLUGINS
629 /* Make sure the module is loaded in mem */
630 module_t *p_module = p_tmp->p_module->b_submodule ?
631 (module_t *)p_tmp->p_module->p_parent : p_tmp->p_module;
632 if( !p_module->b_builtin && !p_module->b_loaded )
634 module_t *p_new_module =
635 AllocatePlugin( p_this, p_module->psz_filename );
638 CacheMerge( p_this, p_module, p_new_module );
639 vlc_object_attach( p_new_module, p_module );
640 DeleteModule( p_new_module );
645 p_this->b_force = p_tmp->b_force;
646 if( p_tmp->p_module->pf_activate
647 && p_tmp->p_module->pf_activate( p_this ) == VLC_SUCCESS )
652 vlc_object_release( p_tmp->p_module );
653 p_tmp = p_tmp->p_next;
656 /* Store the locked module value */
659 p_module = p_tmp->p_module;
660 p_tmp = p_tmp->p_next;
667 /* Unlock the remaining modules */
668 while( p_tmp != NULL )
670 vlc_object_release( p_tmp->p_module );
671 p_tmp = p_tmp->p_next;
675 p_this->b_force = b_force_backup;
677 if( p_module != NULL )
679 msg_Dbg( p_module, "using %s module \"%s\"",
680 psz_capability, p_module->psz_object_name );
682 else if( p_first == NULL )
684 if( !strcmp( psz_capability, "access_demux" ) )
686 msg_Warn( p_this, "no %s module matched \"%s\"",
687 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
691 msg_Err( p_this, "no %s module matched \"%s\"",
692 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
695 else if( psz_name != NULL && *psz_name )
697 msg_Warn( p_this, "no %s module matching \"%s\" could be loaded",
698 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
703 free( psz_shortcuts );
711 /* Don't forget that the module is still locked */
715 /*****************************************************************************
716 * module_Unneed: decrease the usage count of a module.
717 *****************************************************************************
718 * This function must be called by the thread that called module_Need, to
719 * decrease the reference count and allow for hiding of modules.
720 *****************************************************************************/
721 void __module_Unneed( vlc_object_t * p_this, module_t * p_module )
723 /* Use the close method */
724 if( p_module->pf_deactivate )
726 p_module->pf_deactivate( p_this );
729 msg_Dbg( p_module, "unlocking module \"%s\"", p_module->psz_object_name );
731 vlc_object_release( p_module );
736 /*****************************************************************************
737 * Following functions are local.
738 *****************************************************************************/
740 /*****************************************************************************
741 * AllocateAllPlugins: load all plugin modules we can find.
742 *****************************************************************************/
743 #ifdef HAVE_DYNAMIC_PLUGINS
744 static void AllocateAllPlugins( vlc_object_t *p_this )
746 /* Yes, there are two NULLs because we replace one with "plugin-path". */
747 #if defined( WIN32 ) || defined( UNDER_CE )
748 char *path[] = { "modules", "", "plugins", 0, 0 };
750 char *path[] = { "modules", PLUGIN_PATH, "plugins", 0, 0 };
753 char **ppsz_path = path;
756 /* If the user provided a plugin path, we add it to the list */
757 path[ sizeof(path)/sizeof(char*) - 2 ] =
758 config_GetPsz( p_this, "plugin-path" );
760 for( ; *ppsz_path != NULL ; ppsz_path++ )
762 if( !(*ppsz_path)[0] ) continue;
764 #if defined( SYS_BEOS ) || defined( SYS_DARWIN ) || defined( WIN32 )
766 /* Handle relative as well as absolute paths */
768 if( (*ppsz_path)[0] != '\\' && (*ppsz_path)[0] != '/' &&
769 (*ppsz_path)[1] != ':' )
771 if( (*ppsz_path)[0] != '/' )
774 int i_dirlen = strlen( *ppsz_path );
775 i_dirlen += strlen( p_this->p_libvlc->psz_vlcpath ) + 2;
777 psz_fullpath = malloc( i_dirlen );
778 if( psz_fullpath == NULL )
783 sprintf( psz_fullpath, "%s\\%s",
784 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
786 sprintf( psz_fullpath, "%s/%s",
787 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
793 psz_fullpath = strdup( *ppsz_path );
796 msg_Dbg( p_this, "recursively browsing `%s'", psz_fullpath );
798 /* Don't go deeper than 5 subdirectories */
799 AllocatePluginDir( p_this, psz_fullpath, 5 );
801 free( psz_fullpath );
804 /* Free plugin-path */
805 if( path[ sizeof(path)/sizeof(char*) - 2 ] )
806 free( path[ sizeof(path)/sizeof(char*) - 2 ] );
807 path[ sizeof(path)/sizeof(char*) - 2 ] = NULL;
810 /*****************************************************************************
811 * AllocatePluginDir: recursively parse a directory to look for plugins
812 *****************************************************************************/
813 static void AllocatePluginDir( vlc_object_t *p_this, const char *psz_dir,
816 #if defined( UNDER_CE ) || defined( _MSC_VER )
818 wchar_t psz_wpath[MAX_PATH + 256];
819 wchar_t psz_wdir[MAX_PATH];
821 char psz_path[MAX_PATH + 256];
822 WIN32_FIND_DATA finddata;
828 struct dirent * file;
832 if( p_this->p_vlc->b_die || i_maxdepth < 0 )
837 #if defined( UNDER_CE ) || defined( _MSC_VER )
839 MultiByteToWideChar( CP_ACP, 0, psz_dir, -1, psz_wdir, MAX_PATH );
841 rc = GetFileAttributes( psz_wdir );
842 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
844 /* Parse all files in the directory */
845 swprintf( psz_wpath, L"%ls\\*", psz_wdir );
847 rc = GetFileAttributes( psz_dir );
848 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
851 /* Parse all files in the directory */
852 sprintf( psz_path, "%s\\*", psz_dir );
855 handle = FindFirstFile( psz_wpath, &finddata );
857 handle = FindFirstFile( psz_path, &finddata );
859 if( handle == INVALID_HANDLE_VALUE )
861 /* Empty directory */
865 /* Parse the directory and try to load all files it contains. */
869 unsigned int i_len = wcslen( finddata.cFileName );
870 swprintf( psz_wpath, L"%ls\\%ls", psz_wdir, finddata.cFileName );
871 sprintf( psz_path, "%s\\%ls", psz_dir, finddata.cFileName );
873 unsigned int i_len = strlen( finddata.cFileName );
874 sprintf( psz_path, "%s\\%s", psz_dir, finddata.cFileName );
877 /* Skip ".", ".." and anything starting with "." */
878 if( !*finddata.cFileName || *finddata.cFileName == '.' )
880 if( !FindNextFile( handle, &finddata ) ) break;
885 if( GetFileAttributes( psz_wpath ) & FILE_ATTRIBUTE_DIRECTORY )
887 if( GetFileAttributes( psz_path ) & FILE_ATTRIBUTE_DIRECTORY )
890 AllocatePluginDir( p_this, psz_path, i_maxdepth - 1 );
892 else if( i_len > strlen( LIBEXT )
893 /* We only load files ending with LIBEXT */
894 && !strncasecmp( psz_path + strlen( psz_path)
896 LIBEXT, strlen( LIBEXT ) ) )
898 WIN32_FILE_ATTRIBUTE_DATA attrbuf;
899 int64_t i_time = 0, i_size = 0;
902 if( GetFileAttributesEx( psz_wpath, GetFileExInfoStandard,
905 if( GetFileAttributesEx( psz_path, GetFileExInfoStandard,
909 i_time = attrbuf.ftLastWriteTime.dwHighDateTime;
911 i_time |= attrbuf.ftLastWriteTime.dwLowDateTime;
912 i_size = attrbuf.nFileSizeHigh;
914 i_size |= attrbuf.nFileSizeLow;
918 AllocatePluginFile( p_this, psz_file, i_time, i_size );
921 while( !p_this->p_vlc->b_die && FindNextFile( handle, &finddata ) );
923 /* Close the directory */
927 dir = opendir( psz_dir );
933 i_dirlen = strlen( psz_dir );
935 /* Parse the directory and try to load all files it contains. */
936 while( !p_this->p_vlc->b_die && (file = readdir( dir )) )
942 /* Skip ".", ".." and anything starting with "." */
943 if( !*file->d_name || *file->d_name == '.' )
948 i_len = strlen( file->d_name );
949 psz_file = malloc( i_dirlen + 1 + i_len + 1 );
951 sprintf( psz_file, "%s\\%s", psz_dir, file->d_name );
953 sprintf( psz_file, "%s/%s", psz_dir, file->d_name );
956 i_stat = stat( psz_file, &statbuf );
957 if( !i_stat && statbuf.st_mode & S_IFDIR )
959 AllocatePluginDir( p_this, psz_file, i_maxdepth - 1 );
961 else if( i_len > strlen( LIBEXT )
962 /* We only load files ending with LIBEXT */
963 && !strncasecmp( file->d_name + i_len - strlen( LIBEXT ),
964 LIBEXT, strlen( LIBEXT ) ) )
966 int64_t i_time = 0, i_size = 0;
970 i_time = statbuf.st_mtime;
971 i_size = statbuf.st_size;
974 AllocatePluginFile( p_this, psz_file, i_time, i_size );
980 /* Close the directory */
986 /*****************************************************************************
987 * AllocatePluginFile: load a module into memory and initialize it.
988 *****************************************************************************
989 * This function loads a dynamically loadable module and allocates a structure
990 * for its information data. The module can then be handled by module_Need
991 * and module_Unneed. It can be removed by DeleteModule.
992 *****************************************************************************/
993 static int AllocatePluginFile( vlc_object_t * p_this, char * psz_file,
994 int64_t i_file_time, int64_t i_file_size )
997 module_cache_t *p_cache_entry = NULL;
1000 * Check our plugins cache first then load plugin if needed
1003 CacheFind( p_this, psz_file, i_file_time, i_file_size );
1005 if( !p_cache_entry )
1007 p_module = AllocatePlugin( p_this, psz_file );
1011 /* If junk dll, don't try to load it */
1012 if( p_cache_entry->b_junk )
1018 module_config_t *p_item;
1020 p_module = p_cache_entry->p_module;
1021 p_module->b_loaded = VLC_FALSE;
1023 /* For now we force loading if the module's config contains
1024 * callbacks or actions.
1025 * Could be optimized by adding an API call.*/
1026 for( p_item = p_module->p_config;
1027 p_item->i_type != CONFIG_HINT_END; p_item++ )
1029 if( p_item->pf_callback || p_item->i_action )
1030 p_module = AllocatePlugin( p_this, psz_file );
1037 /* Everything worked fine !
1038 * The module is ready to be added to the list. */
1039 p_module->b_builtin = VLC_FALSE;
1041 /* msg_Dbg( p_this, "plugin \"%s\", %s",
1042 p_module->psz_object_name, p_module->psz_longname ); */
1044 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
1047 if( !p_this->p_libvlc->p_module_bank->b_cache ) return 0;
1049 /* Add entry to cache */
1050 #define p_bank p_this->p_libvlc->p_module_bank
1052 realloc( p_bank->pp_cache, (p_bank->i_cache + 1) * sizeof(void *) );
1053 p_bank->pp_cache[p_bank->i_cache] = malloc( sizeof(module_cache_t) );
1054 p_bank->pp_cache[p_bank->i_cache]->psz_file = strdup( psz_file );
1055 p_bank->pp_cache[p_bank->i_cache]->i_time = i_file_time;
1056 p_bank->pp_cache[p_bank->i_cache]->i_size = i_file_size;
1057 p_bank->pp_cache[p_bank->i_cache]->b_junk = p_module ? 0 : 1;
1058 p_bank->pp_cache[p_bank->i_cache]->p_module = p_module;
1061 return p_module ? 0 : -1;
1064 /*****************************************************************************
1065 * AllocatePlugin: load a module into memory and initialize it.
1066 *****************************************************************************
1067 * This function loads a dynamically loadable module and allocates a structure
1068 * for its information data. The module can then be handled by module_Need
1069 * and module_Unneed. It can be removed by DeleteModule.
1070 *****************************************************************************/
1071 static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
1073 module_t * p_module;
1074 module_handle_t handle;
1076 if( LoadModule( p_this, psz_file, &handle ) ) return NULL;
1078 /* Now that we have successfully loaded the module, we can
1079 * allocate a structure for it */
1080 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1081 if( p_module == NULL )
1083 msg_Err( p_this, "out of memory" );
1084 CloseModule( handle );
1088 /* We need to fill these since they may be needed by CallEntry() */
1089 p_module->psz_filename = psz_file;
1090 p_module->handle = handle;
1091 p_module->p_symbols = &p_this->p_libvlc->p_module_bank->symbols;
1092 p_module->b_loaded = VLC_TRUE;
1094 /* Initialize the module: fill p_module, default config */
1095 if( CallEntry( p_module ) != 0 )
1097 /* We couldn't call module_init() */
1098 vlc_object_destroy( p_module );
1099 CloseModule( handle );
1103 DupModule( p_module );
1104 p_module->psz_filename = strdup( p_module->psz_filename );
1106 /* Everything worked fine ! The module is ready to be added to the list. */
1107 p_module->b_builtin = VLC_FALSE;
1112 /*****************************************************************************
1113 * DupModule: make a plugin module standalone.
1114 *****************************************************************************
1115 * This function duplicates all strings in the module, so that the dynamic
1116 * object can be unloaded. It acts recursively on submodules.
1117 *****************************************************************************/
1118 static void DupModule( module_t *p_module )
1123 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1125 *pp_shortcut = strdup( *pp_shortcut );
1128 /* We strdup() these entries so that they are still valid when the
1129 * module is unloaded. */
1130 p_module->psz_object_name = strdup( p_module->psz_object_name );
1131 p_module->psz_capability = strdup( p_module->psz_capability );
1132 p_module->psz_shortname = p_module->psz_shortname ?
1133 strdup( p_module->psz_shortname ) : NULL;
1134 p_module->psz_longname = strdup( p_module->psz_longname );
1136 if( p_module->psz_program != NULL )
1138 p_module->psz_program = strdup( p_module->psz_program );
1141 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1143 DupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1147 /*****************************************************************************
1148 * UndupModule: free a duplicated module.
1149 *****************************************************************************
1150 * This function frees the allocations done in DupModule().
1151 *****************************************************************************/
1152 static void UndupModule( module_t *p_module )
1157 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1159 UndupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1162 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1164 free( *pp_shortcut );
1167 free( p_module->psz_object_name );
1168 free( p_module->psz_capability );
1169 if( p_module->psz_shortname ) free( p_module->psz_shortname );
1170 free( p_module->psz_longname );
1172 if( p_module->psz_program != NULL )
1174 free( p_module->psz_program );
1178 #endif /* HAVE_DYNAMIC_PLUGINS */
1180 /*****************************************************************************
1181 * AllocateBuiltinModule: initialize a builtin module.
1182 *****************************************************************************
1183 * This function registers a builtin module and allocates a structure
1184 * for its information data. The module can then be handled by module_Need
1185 * and module_Unneed. It can be removed by DeleteModule.
1186 *****************************************************************************/
1187 static int AllocateBuiltinModule( vlc_object_t * p_this,
1188 int ( *pf_entry ) ( module_t * ) )
1190 module_t * p_module;
1192 /* Now that we have successfully loaded the module, we can
1193 * allocate a structure for it */
1194 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1195 if( p_module == NULL )
1197 msg_Err( p_this, "out of memory" );
1201 /* Initialize the module : fill p_module->psz_object_name, etc. */
1202 if( pf_entry( p_module ) != 0 )
1204 /* With a well-written module we shouldn't have to print an
1205 * additional error message here, but just make sure. */
1206 msg_Err( p_this, "failed calling entry point in builtin module" );
1207 vlc_object_destroy( p_module );
1211 /* Everything worked fine ! The module is ready to be added to the list. */
1212 p_module->b_builtin = VLC_TRUE;
1214 /* msg_Dbg( p_this, "builtin \"%s\", %s",
1215 p_module->psz_object_name, p_module->psz_longname ); */
1217 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
1222 /*****************************************************************************
1223 * DeleteModule: delete a module and its structure.
1224 *****************************************************************************
1225 * This function can only be called if the module isn't being used.
1226 *****************************************************************************/
1227 static int DeleteModule( module_t * p_module )
1229 vlc_object_detach( p_module );
1231 /* We free the structures that we strdup()ed in Allocate*Module(). */
1232 #ifdef HAVE_DYNAMIC_PLUGINS
1233 if( !p_module->b_builtin )
1235 if( p_module->b_loaded && p_module->b_unloadable )
1237 CloseModule( p_module->handle );
1239 UndupModule( p_module );
1240 free( p_module->psz_filename );
1244 /* Free and detach the object's children */
1245 while( p_module->i_children )
1247 vlc_object_t *p_this = p_module->pp_children[0];
1248 vlc_object_detach( p_this );
1249 vlc_object_destroy( p_this );
1252 config_Free( p_module );
1253 vlc_object_destroy( p_module );
1258 #ifdef HAVE_DYNAMIC_PLUGINS
1259 /*****************************************************************************
1260 * CallEntry: call an entry point.
1261 *****************************************************************************
1262 * This function calls a symbol given its name and a module structure. The
1263 * symbol MUST refer to a function returning int and taking a module_t* as
1265 *****************************************************************************/
1266 static int CallEntry( module_t * p_module )
1268 static char *psz_name = "vlc_entry" MODULE_SUFFIX;
1269 int (* pf_symbol) ( module_t * p_module );
1271 /* Try to resolve the symbol */
1272 pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
1274 if( pf_symbol == NULL )
1276 #if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
1277 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
1278 psz_name, p_module->psz_filename );
1279 #elif defined(HAVE_DL_WINDOWS)
1280 char *psz_error = GetWindowsError();
1281 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1282 psz_name, p_module->psz_filename, psz_error );
1284 #elif defined(HAVE_DL_DLOPEN)
1285 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1286 psz_name, p_module->psz_filename, dlerror() );
1287 #elif defined(HAVE_DL_SHL_LOAD)
1288 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1289 psz_name, p_module->psz_filename, strerror(errno) );
1291 # error "Something is wrong in modules.c"
1296 /* We can now try to call the symbol */
1297 if( pf_symbol( p_module ) != 0 )
1299 /* With a well-written module we shouldn't have to print an
1300 * additional error message here, but just make sure. */
1301 msg_Err( p_module, "failed calling symbol \"%s\" in file `%s'",
1302 psz_name, p_module->psz_filename );
1306 /* Everything worked fine, we can return */
1310 /*****************************************************************************
1311 * LoadModule: loads a dynamic library
1312 *****************************************************************************
1313 * This function loads a dynamically linked library using a system dependant
1314 * method. Will return 0 on success as well as the module handle.
1315 *****************************************************************************/
1316 static int LoadModule( vlc_object_t *p_this, char *psz_file,
1317 module_handle_t *p_handle )
1319 module_handle_t handle;
1321 #if defined(HAVE_DL_DYLD)
1322 NSObjectFileImage image;
1323 NSObjectFileImageReturnCode ret;
1325 ret = NSCreateObjectFileImageFromFile( psz_file, &image );
1327 if( ret != NSObjectFileImageSuccess )
1329 msg_Warn( p_this, "cannot create image from `%s'", psz_file );
1333 /* Open the dynamic module */
1334 handle = NSLinkModule( image, psz_file,
1335 NSLINKMODULE_OPTION_RETURN_ON_ERROR );
1339 NSLinkEditErrors errors;
1340 const char *psz_file, *psz_err;
1342 NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
1343 msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
1344 NSDestroyObjectFileImage( image );
1348 /* Destroy our image, we won't need it */
1349 NSDestroyObjectFileImage( image );
1351 #elif defined(HAVE_DL_BEOS)
1352 handle = load_add_on( psz_file );
1355 msg_Warn( p_this, "cannot load module `%s'", psz_file );
1359 #elif defined(HAVE_DL_WINDOWS)
1362 wchar_t psz_wfile[MAX_PATH];
1363 MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
1364 handle = LoadLibrary( psz_wfile );
1367 handle = LoadLibrary( psz_file );
1369 if( handle == NULL )
1371 char *psz_err = GetWindowsError();
1372 msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
1377 #elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
1378 /* static is OK, we are called atomically */
1379 static vlc_bool_t b_kde = VLC_FALSE;
1381 # if defined(SYS_LINUX)
1382 /* XXX HACK #1 - we should NOT open modules with RTLD_GLOBAL, or we
1383 * are going to get namespace collisions when two modules have common
1384 * public symbols, but ALSA is being a pest here. */
1385 if( strstr( psz_file, "alsa_plugin" ) )
1387 handle = dlopen( psz_file, RTLD_NOW | RTLD_GLOBAL );
1388 if( handle == NULL )
1390 msg_Warn( p_this, "cannot load module `%s' (%s)",
1391 psz_file, dlerror() );
1396 /* XXX HACK #2 - the ugly KDE workaround. It seems that libkdewhatever
1397 * causes dlopen() to segfault if libstdc++ is not loaded in the caller,
1398 * so we just load libstdc++. Bwahahaha! ph34r! -- Sam. */
1399 /* Update: FYI, this is Debian bug #180505, and seems to be fixed. */
1400 if( !b_kde && !strstr( psz_file, "kde" ) )
1402 dlopen( "libstdc++.so.6", RTLD_NOW )
1403 || dlopen( "libstdc++.so.5", RTLD_NOW )
1404 || dlopen( "libstdc++.so.4", RTLD_NOW )
1405 || dlopen( "libstdc++.so.3", RTLD_NOW );
1409 handle = dlopen( psz_file, RTLD_NOW );
1410 if( handle == NULL )
1412 msg_Warn( p_this, "cannot load module `%s' (%s)",
1413 psz_file, dlerror() );
1417 #elif defined(HAVE_DL_DLOPEN)
1418 # if defined(DL_LAZY)
1419 handle = dlopen( psz_file, DL_LAZY );
1421 handle = dlopen( psz_file, 0 );
1423 if( handle == NULL )
1425 msg_Warn( p_this, "cannot load module `%s' (%s)",
1426 psz_file, dlerror() );
1430 #elif defined(HAVE_DL_SHL_LOAD)
1431 handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
1432 if( handle == NULL )
1434 msg_Warn( p_this, "cannot load module `%s' (%s)",
1435 psz_file, strerror(errno) );
1440 # error "Something is wrong in modules.c"
1448 /*****************************************************************************
1449 * CloseModule: unload a dynamic library
1450 *****************************************************************************
1451 * This function unloads a previously opened dynamically linked library
1452 * using a system dependant method. No return value is taken in consideration,
1453 * since some libraries sometimes refuse to close properly.
1454 *****************************************************************************/
1455 static void CloseModule( module_handle_t handle )
1457 #if defined(HAVE_DL_DYLD)
1458 NSUnLinkModule( handle, FALSE );
1460 #elif defined(HAVE_DL_BEOS)
1461 unload_add_on( handle );
1463 #elif defined(HAVE_DL_WINDOWS)
1464 FreeLibrary( handle );
1466 #elif defined(HAVE_DL_DLOPEN)
1469 #elif defined(HAVE_DL_SHL_LOAD)
1470 shl_unload( handle );
1476 /*****************************************************************************
1477 * GetSymbol: get a symbol from a dynamic library
1478 *****************************************************************************
1479 * This function queries a loaded library for a symbol specified in a
1480 * string, and returns a pointer to it. We don't check for dlerror() or
1481 * similar functions, since we want a non-NULL symbol anyway.
1482 *****************************************************************************/
1483 static void * _module_getsymbol( module_handle_t, const char * );
1485 static void * GetSymbol( module_handle_t handle, const char * psz_function )
1487 void * p_symbol = _module_getsymbol( handle, psz_function );
1489 /* MacOS X dl library expects symbols to begin with "_". So do
1490 * some other operating systems. That's really lame, but hey, what
1492 if( p_symbol == NULL )
1494 char *psz_call = malloc( strlen( psz_function ) + 2 );
1496 strcpy( psz_call + 1, psz_function );
1497 psz_call[ 0 ] = '_';
1498 p_symbol = _module_getsymbol( handle, psz_call );
1505 static void * _module_getsymbol( module_handle_t handle,
1506 const char * psz_function )
1508 #if defined(HAVE_DL_DYLD)
1509 NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
1510 return NSAddressOfSymbol( sym );
1512 #elif defined(HAVE_DL_BEOS)
1514 if( B_OK == get_image_symbol( handle, psz_function,
1515 B_SYMBOL_TYPE_TEXT, &p_symbol ) )
1524 #elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
1525 wchar_t psz_real[256];
1526 MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
1528 return (void *)GetProcAddress( handle, psz_real );
1530 #elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
1531 return (void *)GetProcAddress( handle, (char *)psz_function );
1533 #elif defined(HAVE_DL_DLOPEN)
1534 return dlsym( handle, psz_function );
1536 #elif defined(HAVE_DL_SHL_LOAD)
1538 shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
1544 #if defined(HAVE_DL_WINDOWS)
1545 static char * GetWindowsError( void )
1547 #if defined(UNDER_CE)
1548 wchar_t psz_tmp[MAX_PATH];
1549 char * psz_buffer = malloc( MAX_PATH );
1551 char * psz_tmp = malloc( MAX_PATH );
1553 int i = 0, i_error = GetLastError();
1555 FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
1556 NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
1557 (LPTSTR)psz_tmp, MAX_PATH, NULL );
1559 /* Go to the end of the string */
1560 while( psz_tmp[i] && psz_tmp[i] != _T('\r') && psz_tmp[i] != _T('\n') )
1567 #if defined(UNDER_CE)
1568 swprintf( psz_tmp + i, L" (error %i)", i_error );
1569 psz_tmp[ 255 ] = L'\0';
1571 snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
1572 psz_tmp[ 255 ] = '\0';
1576 #if defined(UNDER_CE)
1577 wcstombs( psz_buffer, psz_tmp, MAX_PATH );
1583 #endif /* HAVE_DL_WINDOWS */
1585 /*****************************************************************************
1586 * LoadPluginsCache: loads the plugins cache file
1587 *****************************************************************************
1588 * This function will load the plugin cache if present and valid. This cache
1589 * will in turn be queried by AllocateAllPlugins() to see if it needs to
1590 * actually load the dynamically loadable module.
1591 * This allows us to only fully load plugins when they are actually used.
1592 *****************************************************************************/
1593 static void CacheLoad( vlc_object_t *p_this )
1595 char *psz_filename, *psz_homedir;
1597 int i, j, i_size, i_read;
1598 char p_cachestring[sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE)];
1599 char p_cachelang[6], p_lang[6];
1601 module_cache_t **pp_cache = 0;
1602 int32_t i_file_size, i_marker;
1604 psz_homedir = p_this->p_vlc->psz_homedir;
1607 msg_Err( p_this, "psz_homedir is null" );
1611 i_size = asprintf( &psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1612 PLUGINSCACHE_DIR, CacheName() );
1615 msg_Err( p_this, "out of memory" );
1619 if( p_this->p_libvlc->p_module_bank->b_cache_delete )
1621 #if !defined( UNDER_CE )
1622 unlink( psz_filename );
1624 wchar_t psz_wf[MAX_PATH];
1625 MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
1626 DeleteFile( psz_wf );
1628 msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
1632 msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
1634 file = fopen( psz_filename, "rb" );
1637 msg_Warn( p_this, "could not open plugins cache file %s for reading",
1639 free( psz_filename );
1642 free( psz_filename );
1644 /* Check the file size */
1645 i_read = fread( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1646 if( i_read != sizeof(i_file_size) )
1648 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1654 fseek( file, 0, SEEK_END );
1655 if( ftell( file ) != i_file_size )
1657 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1658 "(corrupted size)" );
1662 fseek( file, sizeof(i_file_size), SEEK_SET );
1664 /* Check the file is a plugins cache */
1665 i_size = sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE) - 1;
1666 i_read = fread( p_cachestring, sizeof(char), i_size, file );
1667 if( i_read != i_size ||
1668 memcmp( p_cachestring, PLUGINSCACHE_DIR COPYRIGHT_MESSAGE, i_size ) )
1670 msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
1675 /* Check Sub-version number */
1676 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1677 if( i_read != sizeof(i_marker) || i_marker != CACHE_SUBVERSION_NUM )
1679 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1680 "(corrupted header)" );
1685 /* Check the language hasn't changed */
1686 sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
1687 i_read = fread( p_cachelang, sizeof(char), i_size, file );
1688 if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
1690 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1691 "(language changed)" );
1696 /* Check header marker */
1697 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1698 if( i_read != sizeof(i_marker) ||
1699 i_marker != ftell( file ) - (int)sizeof(i_marker) )
1701 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1702 "(corrupted header)" );
1707 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1708 fread( &i_cache, sizeof(char), sizeof(i_cache), file );
1710 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache =
1711 malloc( i_cache * sizeof(void *) );
1713 #define LOAD_IMMEDIATE(a) \
1714 if( fread( &a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
1715 #define LOAD_STRING(a) \
1716 { if( fread( &i_size, sizeof(char), sizeof(i_size), file ) \
1717 != sizeof(i_size) ) goto error; \
1718 if( i_size && i_size < 16384 ) { \
1719 a = malloc( i_size ); \
1720 if( fread( a, sizeof(char), i_size, file ) != (size_t)i_size ) \
1722 if( a[i_size-1] ) { \
1729 for( i = 0; i < i_cache; i++ )
1734 pp_cache[i] = malloc( sizeof(module_cache_t) );
1735 p_this->p_libvlc->p_module_bank->i_loaded_cache++;
1737 /* Load common info */
1738 LOAD_STRING( pp_cache[i]->psz_file );
1739 LOAD_IMMEDIATE( pp_cache[i]->i_time );
1740 LOAD_IMMEDIATE( pp_cache[i]->i_size );
1741 LOAD_IMMEDIATE( pp_cache[i]->b_junk );
1743 if( pp_cache[i]->b_junk ) continue;
1745 pp_cache[i]->p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1747 /* Load additional infos */
1748 LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
1749 LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
1750 LOAD_STRING( pp_cache[i]->p_module->psz_longname );
1751 LOAD_STRING( pp_cache[i]->p_module->psz_program );
1752 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1754 LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
1756 LOAD_STRING( pp_cache[i]->p_module->psz_capability );
1757 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
1758 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
1759 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
1760 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
1761 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
1764 if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
1767 LOAD_STRING( pp_cache[i]->p_module->psz_filename );
1769 LOAD_IMMEDIATE( i_submodules );
1771 while( i_submodules-- )
1773 module_t *p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE);
1774 vlc_object_attach( p_module, pp_cache[i]->p_module );
1775 p_module->b_submodule = VLC_TRUE;
1777 LOAD_STRING( p_module->psz_object_name );
1778 LOAD_STRING( p_module->psz_shortname );
1779 LOAD_STRING( p_module->psz_longname );
1780 LOAD_STRING( p_module->psz_program );
1781 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1783 LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
1785 LOAD_STRING( p_module->psz_capability );
1786 LOAD_IMMEDIATE( p_module->i_score );
1787 LOAD_IMMEDIATE( p_module->i_cpu );
1788 LOAD_IMMEDIATE( p_module->b_unloadable );
1789 LOAD_IMMEDIATE( p_module->b_reentrant );
1798 msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
1801 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1807 int CacheLoadConfig( module_t *p_module, FILE *file )
1812 /* Calculate the structure length */
1813 LOAD_IMMEDIATE( p_module->i_config_items );
1814 LOAD_IMMEDIATE( p_module->i_bool_items );
1816 LOAD_IMMEDIATE( i_lines );
1818 /* Allocate memory */
1819 p_module->p_config =
1820 (module_config_t *)malloc( sizeof(module_config_t) * (i_lines + 1));
1821 if( p_module->p_config == NULL )
1823 msg_Err( p_module, "config error: can't duplicate p_config" );
1827 /* Do the duplication job */
1828 for( i = 0; i < i_lines ; i++ )
1830 LOAD_IMMEDIATE( p_module->p_config[i] );
1832 LOAD_STRING( p_module->p_config[i].psz_type );
1833 LOAD_STRING( p_module->p_config[i].psz_name );
1834 LOAD_STRING( p_module->p_config[i].psz_text );
1835 LOAD_STRING( p_module->p_config[i].psz_longtext );
1836 LOAD_STRING( p_module->p_config[i].psz_current );
1837 LOAD_STRING( p_module->p_config[i].psz_value_orig );
1839 p_module->p_config[i].psz_value =
1840 p_module->p_config[i].psz_value_orig ?
1841 strdup( p_module->p_config[i].psz_value_orig ) : 0;
1842 p_module->p_config[i].i_value = p_module->p_config[i].i_value_orig;
1843 p_module->p_config[i].f_value = p_module->p_config[i].f_value_orig;
1844 p_module->p_config[i].i_value_saved = p_module->p_config[i].i_value;
1845 p_module->p_config[i].f_value_saved = p_module->p_config[i].f_value;
1846 p_module->p_config[i].psz_value_saved = 0;
1847 p_module->p_config[i].b_dirty = VLC_FALSE;
1849 p_module->p_config[i].p_lock = &p_module->object_lock;
1851 if( p_module->p_config[i].i_list )
1853 if( p_module->p_config[i].ppsz_list )
1855 p_module->p_config[i].ppsz_list =
1856 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1857 if( p_module->p_config[i].ppsz_list )
1859 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1860 LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
1861 p_module->p_config[i].ppsz_list[j] = NULL;
1864 if( p_module->p_config[i].ppsz_list_text )
1866 p_module->p_config[i].ppsz_list_text =
1867 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1868 if( p_module->p_config[i].ppsz_list_text )
1870 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1871 LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
1872 p_module->p_config[i].ppsz_list_text[j] = NULL;
1875 if( p_module->p_config[i].pi_list )
1877 p_module->p_config[i].pi_list =
1878 malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
1879 if( p_module->p_config[i].pi_list )
1881 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1882 LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
1887 if( p_module->p_config[i].i_action )
1889 p_module->p_config[i].ppf_action =
1890 malloc( p_module->p_config[i].i_action * sizeof(void *) );
1891 p_module->p_config[i].ppsz_action_text =
1892 malloc( p_module->p_config[i].i_action * sizeof(char *) );
1894 for( j = 0; j < p_module->p_config[i].i_action; j++ )
1896 p_module->p_config[i].ppf_action[j] = 0;
1897 LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
1901 LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
1904 p_module->p_config[i].i_type = CONFIG_HINT_END;
1910 return VLC_EGENERIC;
1913 /*****************************************************************************
1914 * SavePluginsCache: saves the plugins cache to a file
1915 *****************************************************************************/
1916 static void CacheSave( vlc_object_t *p_this )
1918 static char const psz_tag[] =
1919 "Signature: 8a477f597d28d172789f06886806bc55\r\n"
1920 "# This file is a cache directory tag created by VLC.\r\n"
1921 "# For information about cache directory tags, see:\r\n"
1922 "# http://www.brynosaurus.com/cachedir/\r\n";
1924 char *psz_filename, *psz_homedir;
1927 module_cache_t **pp_cache;
1928 int32_t i_file_size = 0;
1930 psz_homedir = p_this->p_vlc->psz_homedir;
1933 msg_Err( p_this, "psz_homedir is null" );
1937 (char *)malloc( sizeof("/" CONFIG_DIR "/" PLUGINSCACHE_DIR "/" ) +
1938 strlen(psz_homedir) + strlen(CacheName()) );
1942 msg_Err( p_this, "out of memory" );
1946 sprintf( psz_filename, "%s/%s", psz_homedir, CONFIG_DIR );
1948 config_CreateDir( p_this, psz_filename );
1950 strcat( psz_filename, "/" PLUGINSCACHE_DIR );
1952 config_CreateDir( p_this, psz_filename );
1954 strcat( psz_filename, "/CACHEDIR.TAG" );
1956 file = fopen( psz_filename, "wb" );
1959 fwrite( psz_tag, 1, strlen(psz_tag), file );
1963 sprintf( psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1964 PLUGINSCACHE_DIR, CacheName() );
1966 msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
1968 file = fopen( psz_filename, "wb" );
1971 msg_Warn( p_this, "could not open plugins cache file %s for writing",
1973 free( psz_filename );
1976 free( psz_filename );
1978 /* Empty space for file size */
1979 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1981 /* Contains version number */
1982 fprintf( file, "%s", PLUGINSCACHE_DIR COPYRIGHT_MESSAGE );
1984 /* Sub-version number (to avoid breakage in the dev version when cache
1985 * structure changes) */
1986 i_file_size = CACHE_SUBVERSION_NUM;
1987 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1990 fprintf( file, "%5.5s", _("C") );
1993 i_file_size = ftell( file );
1994 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1996 i_cache = p_this->p_libvlc->p_module_bank->i_cache;
1997 pp_cache = p_this->p_libvlc->p_module_bank->pp_cache;
1999 fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
2001 #define SAVE_IMMEDIATE(a) \
2002 fwrite( &a, sizeof(char), sizeof(a), file )
2003 #define SAVE_STRING(a) \
2004 { i_size = a ? strlen( a ) + 1 : 0; \
2005 fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
2006 if( a ) fwrite( a, sizeof(char), i_size, file ); \
2009 for( i = 0; i < i_cache; i++ )
2012 int32_t i_submodule;
2014 /* Save common info */
2015 SAVE_STRING( pp_cache[i]->psz_file );
2016 SAVE_IMMEDIATE( pp_cache[i]->i_time );
2017 SAVE_IMMEDIATE( pp_cache[i]->i_size );
2018 SAVE_IMMEDIATE( pp_cache[i]->b_junk );
2020 if( pp_cache[i]->b_junk ) continue;
2022 /* Save additional infos */
2023 SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
2024 SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
2025 SAVE_STRING( pp_cache[i]->p_module->psz_longname );
2026 SAVE_STRING( pp_cache[i]->p_module->psz_program );
2027 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2029 SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
2031 SAVE_STRING( pp_cache[i]->p_module->psz_capability );
2032 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
2033 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
2034 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
2035 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
2036 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
2039 CacheSaveConfig( pp_cache[i]->p_module, file );
2041 SAVE_STRING( pp_cache[i]->p_module->psz_filename );
2043 i_submodule = pp_cache[i]->p_module->i_children;
2044 SAVE_IMMEDIATE( i_submodule );
2045 for( i_submodule = 0; i_submodule < pp_cache[i]->p_module->i_children;
2048 module_t *p_module =
2049 (module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
2051 SAVE_STRING( p_module->psz_object_name );
2052 SAVE_STRING( p_module->psz_shortname );
2053 SAVE_STRING( p_module->psz_longname );
2054 SAVE_STRING( p_module->psz_program );
2055 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2057 SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
2059 SAVE_STRING( p_module->psz_capability );
2060 SAVE_IMMEDIATE( p_module->i_score );
2061 SAVE_IMMEDIATE( p_module->i_cpu );
2062 SAVE_IMMEDIATE( p_module->b_unloadable );
2063 SAVE_IMMEDIATE( p_module->b_reentrant );
2067 /* Fill-up file size */
2068 i_file_size = ftell( file );
2069 fseek( file, 0, SEEK_SET );
2070 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2077 void CacheSaveConfig( module_t *p_module, FILE *file )
2079 int i, j, i_lines = 0;
2080 module_config_t *p_item;
2083 SAVE_IMMEDIATE( p_module->i_config_items );
2084 SAVE_IMMEDIATE( p_module->i_bool_items );
2086 for( p_item = p_module->p_config; p_item->i_type != CONFIG_HINT_END;
2087 p_item++ ) i_lines++;
2089 SAVE_IMMEDIATE( i_lines );
2091 for( i = 0; i < i_lines ; i++ )
2093 SAVE_IMMEDIATE( p_module->p_config[i] );
2095 SAVE_STRING( p_module->p_config[i].psz_type );
2096 SAVE_STRING( p_module->p_config[i].psz_name );
2097 SAVE_STRING( p_module->p_config[i].psz_text );
2098 SAVE_STRING( p_module->p_config[i].psz_longtext );
2099 SAVE_STRING( p_module->p_config[i].psz_current );
2100 SAVE_STRING( p_module->p_config[i].psz_value_orig );
2102 if( p_module->p_config[i].i_list )
2104 if( p_module->p_config[i].ppsz_list )
2106 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2107 SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
2110 if( p_module->p_config[i].ppsz_list_text )
2112 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2113 SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
2115 if( p_module->p_config[i].pi_list )
2117 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2118 SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
2122 for( j = 0; j < p_module->p_config[i].i_action; j++ )
2123 SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
2125 SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
2129 /*****************************************************************************
2130 * CacheName: Return the cache file name for this platform.
2131 *****************************************************************************/
2132 static char *CacheName( void )
2134 static char psz_cachename[32];
2135 static vlc_bool_t b_initialised = VLC_FALSE;
2137 if( !b_initialised )
2139 /* Code int size, pointer size and endianness in the filename */
2140 int32_t x = 0xbe00001e;
2141 sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", sizeof(int),
2142 sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
2143 b_initialised = VLC_TRUE;
2146 return psz_cachename;
2149 /*****************************************************************************
2150 * CacheMerge: Merge a cache module descriptor with a full module descriptor.
2151 *****************************************************************************/
2152 static void CacheMerge( vlc_object_t *p_this, module_t *p_cache,
2153 module_t *p_module )
2157 p_cache->pf_activate = p_module->pf_activate;
2158 p_cache->pf_deactivate = p_module->pf_deactivate;
2159 p_cache->p_symbols = p_module->p_symbols;
2160 p_cache->handle = p_module->handle;
2162 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
2164 module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
2165 module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
2166 p_cchild->pf_activate = p_child->pf_activate;
2167 p_cchild->pf_deactivate = p_child->pf_deactivate;
2168 p_cchild->p_symbols = p_child->p_symbols;
2171 p_cache->b_loaded = VLC_TRUE;
2172 p_module->b_loaded = VLC_FALSE;
2175 /*****************************************************************************
2176 * FindPluginCache: finds the cache entry corresponding to a file
2177 *****************************************************************************/
2178 static module_cache_t *CacheFind( vlc_object_t *p_this, char *psz_file,
2179 int64_t i_time, int64_t i_size )
2181 module_cache_t **pp_cache;
2184 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache;
2185 i_cache = p_this->p_libvlc->p_module_bank->i_loaded_cache;
2187 for( i = 0; i < i_cache; i++ )
2189 if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
2190 pp_cache[i]->i_time == i_time &&
2191 pp_cache[i]->i_size == i_size ) return pp_cache[i];
2197 #endif /* HAVE_DYNAMIC_PLUGINS */