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"
101 #include "iso_lang.h"
104 #include "vlc_block.h"
108 #include "vlc_image.h"
110 #ifdef HAVE_DYNAMIC_PLUGINS
111 # include "modules_plugin.h"
114 #if defined( _MSC_VER ) && defined( UNDER_CE )
115 # include "modules_builtin_evc.h"
116 #elif defined( _MSC_VER )
117 # include "modules_builtin_msvc.h"
119 # include "modules_builtin.h"
123 #if defined( WIN32 ) || defined( UNDER_CE )
124 /* Avoid name collisions */
125 # define LoadModule(a,b,c) LoadVlcModule(a,b,c)
128 /*****************************************************************************
130 *****************************************************************************/
131 #ifdef HAVE_DYNAMIC_PLUGINS
132 static void AllocateAllPlugins ( vlc_object_t * );
133 static void AllocatePluginDir ( vlc_object_t *, const char *, int );
134 static int AllocatePluginFile ( vlc_object_t *, char *, int64_t, int64_t );
135 static module_t * AllocatePlugin( vlc_object_t *, char * );
137 static int AllocateBuiltinModule( vlc_object_t *, int ( * ) ( module_t * ) );
138 static int DeleteModule ( module_t * );
139 #ifdef HAVE_DYNAMIC_PLUGINS
140 static void DupModule ( module_t * );
141 static void UndupModule ( module_t * );
142 static int CallEntry ( module_t * );
143 static int LoadModule ( vlc_object_t *, char *, module_handle_t * );
144 static void CloseModule ( module_handle_t );
145 static void * GetSymbol ( module_handle_t, const char * );
146 static void CacheLoad ( vlc_object_t * );
147 static int CacheLoadConfig ( module_t *, FILE * );
148 static void CacheSave ( vlc_object_t * );
149 static void CacheSaveConfig ( module_t *, FILE * );
150 static char * CacheName ( void );
151 static void CacheMerge ( vlc_object_t *, module_t *, module_t * );
152 static module_cache_t * CacheFind( vlc_object_t *, char *, int64_t, int64_t );
154 #if defined(HAVE_DL_WINDOWS)
155 static char * GetWindowsError ( void );
160 /* Sub-version number
161 * (only used to avoid breakage in dev version when cache structure changes) */
162 #define CACHE_SUBVERSION_NUM 1
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;
175 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
176 var_Get( p_this->p_libvlc, "libvlc", &lockval );
177 vlc_mutex_lock( lockval.p_address );
178 if( p_this->p_libvlc->p_module_bank )
180 p_this->p_libvlc->p_module_bank->i_usage++;
181 vlc_mutex_unlock( lockval.p_address );
182 var_Destroy( p_this->p_libvlc, "libvlc" );
185 vlc_mutex_unlock( lockval.p_address );
186 var_Destroy( p_this->p_libvlc, "libvlc" );
188 p_bank = vlc_object_create( p_this, sizeof(module_bank_t) );
189 p_bank->psz_object_name = "module bank";
191 p_bank->i_cache = p_bank->i_loaded_cache = 0;
192 p_bank->pp_cache = p_bank->pp_loaded_cache = 0;
193 p_bank->b_cache = p_bank->b_cache_dirty =
194 p_bank->b_cache_delete = VLC_FALSE;
197 * Store the symbols to be exported
199 #ifdef HAVE_DYNAMIC_PLUGINS
200 STORE_SYMBOLS( &p_bank->symbols );
203 /* Everything worked, attach the object */
204 p_this->p_libvlc->p_module_bank = p_bank;
205 vlc_object_attach( p_bank, p_this->p_libvlc );
207 module_LoadMain( p_this );
212 /*****************************************************************************
213 * module_ResetBank: reset the module bank.
214 *****************************************************************************
215 * This function resets the module bank by unloading all unused plugin
217 *****************************************************************************/
218 void __module_ResetBank( vlc_object_t *p_this )
220 msg_Err( p_this, "FIXME: module_ResetBank unimplemented" );
224 /*****************************************************************************
225 * module_EndBank: empty the module bank.
226 *****************************************************************************
227 * This function unloads all unused plugin modules and empties the module
228 * bank in case of success.
229 *****************************************************************************/
230 void __module_EndBank( vlc_object_t *p_this )
235 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
236 var_Get( p_this->p_libvlc, "libvlc", &lockval );
237 vlc_mutex_lock( lockval.p_address );
238 if( !p_this->p_libvlc->p_module_bank )
240 vlc_mutex_unlock( lockval.p_address );
241 var_Destroy( p_this->p_libvlc, "libvlc" );
244 if( --p_this->p_libvlc->p_module_bank->i_usage )
246 vlc_mutex_unlock( lockval.p_address );
247 var_Destroy( p_this->p_libvlc, "libvlc" );
250 vlc_mutex_unlock( lockval.p_address );
251 var_Destroy( p_this->p_libvlc, "libvlc" );
253 config_AutoSaveConfigFile( p_this );
255 #ifdef HAVE_DYNAMIC_PLUGINS
256 #define p_bank p_this->p_libvlc->p_module_bank
257 if( p_bank->b_cache ) CacheSave( p_this );
258 while( p_bank->i_loaded_cache-- )
260 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->psz_file );
261 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache] );
262 if( !p_bank->i_loaded_cache ) free( p_bank->pp_loaded_cache );
264 while( p_bank->i_cache-- )
266 free( p_bank->pp_cache[p_bank->i_cache]->psz_file );
267 free( p_bank->pp_cache[p_bank->i_cache] );
268 if( !p_bank->i_cache ) free( p_bank->pp_cache );
273 vlc_object_detach( p_this->p_libvlc->p_module_bank );
275 while( p_this->p_libvlc->p_module_bank->i_children )
277 p_next = (module_t *)p_this->p_libvlc->p_module_bank->pp_children[0];
279 if( DeleteModule( p_next ) )
281 /* Module deletion failed */
282 msg_Err( p_this, "module \"%s\" can't be removed, trying harder",
283 p_next->psz_object_name );
285 /* We just free the module by hand. Niahahahahaha. */
286 vlc_object_detach( p_next );
287 vlc_object_destroy( p_next );
291 vlc_object_destroy( p_this->p_libvlc->p_module_bank );
292 p_this->p_libvlc->p_module_bank = NULL;
297 /*****************************************************************************
298 * module_LoadMain: load the main program info into the module bank.
299 *****************************************************************************
300 * This function fills the module bank structure with the main module infos.
301 * This is very useful as it will allow us to consider the main program just
302 * as another module, and for instance the configuration options of main will
303 * be available in the module bank structure just as for every other module.
304 *****************************************************************************/
305 void __module_LoadMain( vlc_object_t *p_this )
309 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
310 var_Get( p_this->p_libvlc, "libvlc", &lockval );
311 vlc_mutex_lock( lockval.p_address );
312 if( p_this->p_libvlc->p_module_bank->b_main )
314 vlc_mutex_unlock( lockval.p_address );
315 var_Destroy( p_this->p_libvlc, "libvlc" );
318 p_this->p_libvlc->p_module_bank->b_main = VLC_TRUE;
319 vlc_mutex_unlock( lockval.p_address );
320 var_Destroy( p_this->p_libvlc, "libvlc" );
322 AllocateBuiltinModule( p_this, vlc_entry__main );
325 /*****************************************************************************
326 * module_LoadBuiltins: load all modules which we built with.
327 *****************************************************************************
328 * This function fills the module bank structure with the builtin modules.
329 *****************************************************************************/
330 void __module_LoadBuiltins( vlc_object_t * p_this )
334 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
335 var_Get( p_this->p_libvlc, "libvlc", &lockval );
336 vlc_mutex_lock( lockval.p_address );
337 if( p_this->p_libvlc->p_module_bank->b_builtins )
339 vlc_mutex_unlock( lockval.p_address );
340 var_Destroy( p_this->p_libvlc, "libvlc" );
343 p_this->p_libvlc->p_module_bank->b_builtins = VLC_TRUE;
344 vlc_mutex_unlock( lockval.p_address );
345 var_Destroy( p_this->p_libvlc, "libvlc" );
347 msg_Dbg( p_this, "checking builtin modules" );
348 ALLOCATE_ALL_BUILTINS();
351 /*****************************************************************************
352 * module_LoadPlugins: load all plugin modules we can find.
353 *****************************************************************************
354 * This function fills the module bank structure with the plugin modules.
355 *****************************************************************************/
356 void __module_LoadPlugins( vlc_object_t * p_this )
358 #ifdef HAVE_DYNAMIC_PLUGINS
361 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
362 var_Get( p_this->p_libvlc, "libvlc", &lockval );
363 vlc_mutex_lock( lockval.p_address );
364 if( p_this->p_libvlc->p_module_bank->b_plugins )
366 vlc_mutex_unlock( lockval.p_address );
367 var_Destroy( p_this->p_libvlc, "libvlc" );
370 p_this->p_libvlc->p_module_bank->b_plugins = VLC_TRUE;
371 vlc_mutex_unlock( lockval.p_address );
372 var_Destroy( p_this->p_libvlc, "libvlc" );
374 msg_Dbg( p_this, "checking plugin modules" );
376 if( config_GetInt( p_this, "plugins-cache" ) )
377 p_this->p_libvlc->p_module_bank->b_cache = VLC_TRUE;
379 if( p_this->p_libvlc->p_module_bank->b_cache ||
380 p_this->p_libvlc->p_module_bank->b_cache_delete ) CacheLoad( p_this );
382 AllocateAllPlugins( p_this );
386 /*****************************************************************************
387 * module_Need: return the best module function, given a capability list.
388 *****************************************************************************
389 * This function returns the module that best fits the asked capabilities.
390 *****************************************************************************/
391 module_t * __module_Need( vlc_object_t *p_this, const char *psz_capability,
392 const char *psz_name, vlc_bool_t b_strict )
394 typedef struct module_list_t module_list_t;
401 module_list_t *p_next;
404 module_list_t *p_list, *p_first, *p_tmp;
407 int i_which_module, i_index = 0;
408 vlc_bool_t b_intf = VLC_FALSE;
413 char *psz_shortcuts = NULL, *psz_var = NULL;
414 vlc_bool_t b_force_backup = p_this->b_force;
417 /* Deal with variables */
418 if( psz_name && psz_name[0] == '$' )
421 var_Create( p_this, psz_name + 1, VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
422 var_Get( p_this, psz_name + 1, &val );
423 psz_var = val.psz_string;
427 /* Count how many different shortcuts were asked for */
428 if( psz_name && *psz_name )
430 char *psz_parser, *psz_last_shortcut;
432 /* If the user wants none, give him none. */
433 if( !strcmp( psz_name, "none" ) )
435 if( psz_var ) free( psz_var );
440 psz_shortcuts = psz_last_shortcut = strdup( psz_name );
442 for( psz_parser = psz_shortcuts; *psz_parser; psz_parser++ )
444 if( *psz_parser == ',' )
448 psz_last_shortcut = psz_parser + 1;
452 /* Check if the user wants to override the "strict" mode */
453 if( psz_last_shortcut )
455 if( !strcmp(psz_last_shortcut, "none") )
460 else if( !strcmp(psz_last_shortcut, "any") )
462 b_strict = VLC_FALSE;
468 /* Sort the modules and test them */
469 p_all = vlc_list_find( p_this, VLC_OBJECT_MODULE, FIND_ANYWHERE );
470 p_list = malloc( p_all->i_count * sizeof( module_list_t ) );
473 /* Parse the module list for capabilities and probe each of them */
474 for( i_which_module = 0; i_which_module < p_all->i_count; i_which_module++ )
476 int i_shortcut_bonus = 0;
478 p_module = (module_t *)p_all->p_values[i_which_module].p_object;
480 /* Test that this module can do what we need */
481 if( strcmp( p_module->psz_capability, psz_capability ) )
483 /* Don't recurse through the sub-modules because vlc_list_find()
484 * will list them anyway. */
488 /* Test if we have the required CPU */
489 if( (p_module->i_cpu & p_this->p_libvlc->i_cpu) != p_module->i_cpu )
494 /* If we required a shortcut, check this plugin provides it. */
495 if( i_shortcuts > 0 )
498 int i_dummy, i_short = i_shortcuts;
499 char *psz_name = psz_shortcuts;
501 /* Let's drop modules with a <= 0 score (unless they are
502 * explicitly requested) */
503 b_trash = p_module->i_score <= 0;
507 for( i_dummy = 0; p_module->pp_shortcuts[i_dummy]; i_dummy++ )
509 if( !strcasecmp( psz_name,
510 p_module->pp_shortcuts[i_dummy] ) )
514 i_shortcut_bonus = i_short * 10000;
519 if( i_shortcut_bonus )
521 /* We found it... remember ? */
525 /* Go to the next shortcut... This is so lame! */
534 /* If we are in "strict" mode and we couldn't
535 * find the module in the list of provided shortcuts,
536 * then kick the bastard out of here!!! */
537 if( i_short == 0 && b_strict )
547 /* If we didn't require a shortcut, trash <= 0 scored plugins */
548 else if( p_module->i_score <= 0 )
553 /* Special case: test if we requested a particular intf plugin */
554 if( !i_shortcuts && p_module->psz_program
555 && !strcmp( psz_capability, "interface" )
556 && !strcmp( p_module->psz_program,
557 p_this->p_vlc->psz_object_name ) )
561 /* Remove previous non-matching plugins */
568 /* This one doesn't match */
572 /* Store this new module */
573 p_list[ i_index ].p_module = p_module;
574 p_list[ i_index ].i_score = p_module->i_score + i_shortcut_bonus;
575 p_list[ i_index ].b_force = !!i_shortcut_bonus;
577 /* Add it to the modules-to-probe list */
580 p_list[ 0 ].p_next = NULL;
585 /* Ok, so at school you learned that quicksort is quick, and
586 * bubble sort sucks raw eggs. But that's when dealing with
587 * thousands of items. Here we have barely 50. */
588 module_list_t *p_newlist = p_first;
590 if( p_first->i_score < p_list[ i_index ].i_score )
592 p_list[ i_index ].p_next = p_first;
593 p_first = &p_list[ i_index ];
597 while( p_newlist->p_next != NULL &&
598 p_newlist->p_next->i_score >= p_list[ i_index ].i_score )
600 p_newlist = p_newlist->p_next;
603 p_list[ i_index ].p_next = p_newlist->p_next;
604 p_newlist->p_next = &p_list[ i_index ];
611 msg_Dbg( p_this, "looking for %s module: %i candidate%s", psz_capability,
612 i_index, i_index == 1 ? "" : "s" );
614 /* Lock all candidate modules */
616 while( p_tmp != NULL )
618 vlc_object_yield( p_tmp->p_module );
619 p_tmp = p_tmp->p_next;
622 /* We can release the list, interesting modules were yielded */
623 vlc_list_release( p_all );
625 /* Parse the linked list and use the first successful module */
627 while( p_tmp != NULL )
629 #ifdef HAVE_DYNAMIC_PLUGINS
630 /* Make sure the module is loaded in mem */
631 module_t *p_module = p_tmp->p_module->b_submodule ?
632 (module_t *)p_tmp->p_module->p_parent : p_tmp->p_module;
633 if( !p_module->b_builtin && !p_module->b_loaded )
635 module_t *p_new_module =
636 AllocatePlugin( p_this, p_module->psz_filename );
639 CacheMerge( p_this, p_module, p_new_module );
640 vlc_object_attach( p_new_module, p_module );
641 DeleteModule( p_new_module );
646 p_this->b_force = p_tmp->b_force;
647 if( p_tmp->p_module->pf_activate
648 && p_tmp->p_module->pf_activate( p_this ) == VLC_SUCCESS )
653 vlc_object_release( p_tmp->p_module );
654 p_tmp = p_tmp->p_next;
657 /* Store the locked module value */
660 p_module = p_tmp->p_module;
661 p_tmp = p_tmp->p_next;
668 /* Unlock the remaining modules */
669 while( p_tmp != NULL )
671 vlc_object_release( p_tmp->p_module );
672 p_tmp = p_tmp->p_next;
676 p_this->b_force = b_force_backup;
678 if( p_module != NULL )
680 msg_Dbg( p_module, "using %s module \"%s\"",
681 psz_capability, p_module->psz_object_name );
683 else if( p_first == NULL )
685 if( !strcmp( psz_capability, "access_demux" ) )
687 msg_Warn( p_this, "no %s module matched \"%s\"",
688 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
692 msg_Err( p_this, "no %s module matched \"%s\"",
693 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
696 else if( psz_name != NULL && *psz_name )
698 msg_Warn( p_this, "no %s module matching \"%s\" could be loaded",
699 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
704 free( psz_shortcuts );
712 /* Don't forget that the module is still locked */
716 /*****************************************************************************
717 * module_Unneed: decrease the usage count of a module.
718 *****************************************************************************
719 * This function must be called by the thread that called module_Need, to
720 * decrease the reference count and allow for hiding of modules.
721 *****************************************************************************/
722 void __module_Unneed( vlc_object_t * p_this, module_t * p_module )
724 /* Use the close method */
725 if( p_module->pf_deactivate )
727 p_module->pf_deactivate( p_this );
730 msg_Dbg( p_module, "unlocking module \"%s\"", p_module->psz_object_name );
732 vlc_object_release( p_module );
737 /*****************************************************************************
738 * Following functions are local.
739 *****************************************************************************/
741 /*****************************************************************************
742 * AllocateAllPlugins: load all plugin modules we can find.
743 *****************************************************************************/
744 #ifdef HAVE_DYNAMIC_PLUGINS
745 static void AllocateAllPlugins( vlc_object_t *p_this )
747 /* Yes, there are two NULLs because we replace one with "plugin-path". */
748 #if defined( WIN32 ) || defined( UNDER_CE )
749 char *path[] = { "modules", "", "plugins", 0, 0 };
751 char *path[] = { "modules", PLUGIN_PATH, "plugins", 0, 0 };
754 char **ppsz_path = path;
757 /* If the user provided a plugin path, we add it to the list */
758 path[ sizeof(path)/sizeof(char*) - 2 ] =
759 config_GetPsz( p_this, "plugin-path" );
761 for( ; *ppsz_path != NULL ; ppsz_path++ )
763 if( !(*ppsz_path)[0] ) continue;
765 #if defined( SYS_BEOS ) || defined( SYS_DARWIN ) || defined( WIN32 )
767 /* Handle relative as well as absolute paths */
769 if( (*ppsz_path)[0] != '\\' && (*ppsz_path)[0] != '/' &&
770 (*ppsz_path)[1] != ':' )
772 if( (*ppsz_path)[0] != '/' )
775 int i_dirlen = strlen( *ppsz_path );
776 i_dirlen += strlen( p_this->p_libvlc->psz_vlcpath ) + 2;
778 psz_fullpath = malloc( i_dirlen );
779 if( psz_fullpath == NULL )
784 sprintf( psz_fullpath, "%s\\%s",
785 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
787 sprintf( psz_fullpath, "%s/%s",
788 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
794 psz_fullpath = strdup( *ppsz_path );
797 msg_Dbg( p_this, "recursively browsing `%s'", psz_fullpath );
799 /* Don't go deeper than 5 subdirectories */
800 AllocatePluginDir( p_this, psz_fullpath, 5 );
802 free( psz_fullpath );
805 /* Free plugin-path */
806 if( path[ sizeof(path)/sizeof(char*) - 2 ] )
807 free( path[ sizeof(path)/sizeof(char*) - 2 ] );
808 path[ sizeof(path)/sizeof(char*) - 2 ] = NULL;
811 /*****************************************************************************
812 * AllocatePluginDir: recursively parse a directory to look for plugins
813 *****************************************************************************/
814 static void AllocatePluginDir( vlc_object_t *p_this, const char *psz_dir,
817 #if defined( UNDER_CE ) || defined( _MSC_VER )
819 wchar_t psz_wpath[MAX_PATH + 256];
820 wchar_t psz_wdir[MAX_PATH];
822 char psz_path[MAX_PATH + 256];
823 WIN32_FIND_DATA finddata;
829 struct dirent * file;
833 if( p_this->p_vlc->b_die || i_maxdepth < 0 )
838 #if defined( UNDER_CE ) || defined( _MSC_VER )
840 MultiByteToWideChar( CP_ACP, 0, psz_dir, -1, psz_wdir, MAX_PATH );
842 rc = GetFileAttributes( psz_wdir );
843 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
845 /* Parse all files in the directory */
846 swprintf( psz_wpath, L"%ls\\*", psz_wdir );
848 rc = GetFileAttributes( psz_dir );
849 if( rc<0 || !(rc&FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
852 /* Parse all files in the directory */
853 sprintf( psz_path, "%s\\*", psz_dir );
856 handle = FindFirstFile( psz_wpath, &finddata );
858 handle = FindFirstFile( psz_path, &finddata );
860 if( handle == INVALID_HANDLE_VALUE )
862 /* Empty directory */
866 /* Parse the directory and try to load all files it contains. */
870 unsigned int i_len = wcslen( finddata.cFileName );
871 swprintf( psz_wpath, L"%ls\\%ls", psz_wdir, finddata.cFileName );
872 sprintf( psz_path, "%s\\%ls", psz_dir, finddata.cFileName );
874 unsigned int i_len = strlen( finddata.cFileName );
875 sprintf( psz_path, "%s\\%s", psz_dir, finddata.cFileName );
878 /* Skip ".", ".." and anything starting with "." */
879 if( !*finddata.cFileName || *finddata.cFileName == '.' )
881 if( !FindNextFile( handle, &finddata ) ) break;
886 if( GetFileAttributes( psz_wpath ) & FILE_ATTRIBUTE_DIRECTORY )
888 if( GetFileAttributes( psz_path ) & FILE_ATTRIBUTE_DIRECTORY )
891 AllocatePluginDir( p_this, psz_path, i_maxdepth - 1 );
893 else if( i_len > strlen( LIBEXT )
894 /* We only load files ending with LIBEXT */
895 && !strncasecmp( psz_path + strlen( psz_path)
897 LIBEXT, strlen( LIBEXT ) ) )
899 WIN32_FILE_ATTRIBUTE_DATA attrbuf;
900 int64_t i_time = 0, i_size = 0;
903 if( GetFileAttributesEx( psz_wpath, GetFileExInfoStandard,
906 if( GetFileAttributesEx( psz_path, GetFileExInfoStandard,
910 i_time = attrbuf.ftLastWriteTime.dwHighDateTime;
912 i_time |= attrbuf.ftLastWriteTime.dwLowDateTime;
913 i_size = attrbuf.nFileSizeHigh;
915 i_size |= attrbuf.nFileSizeLow;
919 AllocatePluginFile( p_this, psz_file, i_time, i_size );
922 while( !p_this->p_vlc->b_die && FindNextFile( handle, &finddata ) );
924 /* Close the directory */
928 dir = opendir( psz_dir );
934 i_dirlen = strlen( psz_dir );
936 /* Parse the directory and try to load all files it contains. */
937 while( !p_this->p_vlc->b_die && (file = readdir( dir )) )
943 /* Skip ".", ".." and anything starting with "." */
944 if( !*file->d_name || *file->d_name == '.' )
949 i_len = strlen( file->d_name );
950 psz_file = malloc( i_dirlen + 1 + i_len + 1 );
952 sprintf( psz_file, "%s\\%s", psz_dir, file->d_name );
954 sprintf( psz_file, "%s/%s", psz_dir, file->d_name );
957 i_stat = stat( psz_file, &statbuf );
958 if( !i_stat && statbuf.st_mode & S_IFDIR )
960 AllocatePluginDir( p_this, psz_file, i_maxdepth - 1 );
962 else if( i_len > strlen( LIBEXT )
963 /* We only load files ending with LIBEXT */
964 && !strncasecmp( file->d_name + i_len - strlen( LIBEXT ),
965 LIBEXT, strlen( LIBEXT ) ) )
967 int64_t i_time = 0, i_size = 0;
971 i_time = statbuf.st_mtime;
972 i_size = statbuf.st_size;
975 AllocatePluginFile( p_this, psz_file, i_time, i_size );
981 /* Close the directory */
987 /*****************************************************************************
988 * AllocatePluginFile: load a module into memory and initialize it.
989 *****************************************************************************
990 * This function loads a dynamically loadable module and allocates a structure
991 * for its information data. The module can then be handled by module_Need
992 * and module_Unneed. It can be removed by DeleteModule.
993 *****************************************************************************/
994 static int AllocatePluginFile( vlc_object_t * p_this, char * psz_file,
995 int64_t i_file_time, int64_t i_file_size )
998 module_cache_t *p_cache_entry = NULL;
1001 * Check our plugins cache first then load plugin if needed
1004 CacheFind( p_this, psz_file, i_file_time, i_file_size );
1006 if( !p_cache_entry )
1008 p_module = AllocatePlugin( p_this, psz_file );
1012 /* If junk dll, don't try to load it */
1013 if( p_cache_entry->b_junk )
1019 module_config_t *p_item;
1021 p_module = p_cache_entry->p_module;
1022 p_module->b_loaded = VLC_FALSE;
1024 /* For now we force loading if the module's config contains
1025 * callbacks or actions.
1026 * Could be optimized by adding an API call.*/
1027 for( p_item = p_module->p_config;
1028 p_item->i_type != CONFIG_HINT_END; p_item++ )
1030 if( p_item->pf_callback || p_item->i_action )
1031 p_module = AllocatePlugin( p_this, psz_file );
1038 /* Everything worked fine !
1039 * The module is ready to be added to the list. */
1040 p_module->b_builtin = VLC_FALSE;
1042 /* msg_Dbg( p_this, "plugin \"%s\", %s",
1043 p_module->psz_object_name, p_module->psz_longname ); */
1045 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
1048 if( !p_this->p_libvlc->p_module_bank->b_cache ) return 0;
1050 /* Add entry to cache */
1051 #define p_bank p_this->p_libvlc->p_module_bank
1053 realloc( p_bank->pp_cache, (p_bank->i_cache + 1) * sizeof(void *) );
1054 p_bank->pp_cache[p_bank->i_cache] = malloc( sizeof(module_cache_t) );
1055 p_bank->pp_cache[p_bank->i_cache]->psz_file = strdup( psz_file );
1056 p_bank->pp_cache[p_bank->i_cache]->i_time = i_file_time;
1057 p_bank->pp_cache[p_bank->i_cache]->i_size = i_file_size;
1058 p_bank->pp_cache[p_bank->i_cache]->b_junk = p_module ? 0 : 1;
1059 p_bank->pp_cache[p_bank->i_cache]->p_module = p_module;
1062 return p_module ? 0 : -1;
1065 /*****************************************************************************
1066 * AllocatePlugin: load a module into memory and initialize it.
1067 *****************************************************************************
1068 * This function loads a dynamically loadable module and allocates a structure
1069 * for its information data. The module can then be handled by module_Need
1070 * and module_Unneed. It can be removed by DeleteModule.
1071 *****************************************************************************/
1072 static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
1074 module_t * p_module;
1075 module_handle_t handle;
1077 if( LoadModule( p_this, psz_file, &handle ) ) return NULL;
1079 /* Now that we have successfully loaded the module, we can
1080 * allocate a structure for it */
1081 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1082 if( p_module == NULL )
1084 msg_Err( p_this, "out of memory" );
1085 CloseModule( handle );
1089 /* We need to fill these since they may be needed by CallEntry() */
1090 p_module->psz_filename = psz_file;
1091 p_module->handle = handle;
1092 p_module->p_symbols = &p_this->p_libvlc->p_module_bank->symbols;
1093 p_module->b_loaded = VLC_TRUE;
1095 /* Initialize the module: fill p_module, default config */
1096 if( CallEntry( p_module ) != 0 )
1098 /* We couldn't call module_init() */
1099 vlc_object_destroy( p_module );
1100 CloseModule( handle );
1104 DupModule( p_module );
1105 p_module->psz_filename = strdup( p_module->psz_filename );
1107 /* Everything worked fine ! The module is ready to be added to the list. */
1108 p_module->b_builtin = VLC_FALSE;
1113 /*****************************************************************************
1114 * DupModule: make a plugin module standalone.
1115 *****************************************************************************
1116 * This function duplicates all strings in the module, so that the dynamic
1117 * object can be unloaded. It acts recursively on submodules.
1118 *****************************************************************************/
1119 static void DupModule( module_t *p_module )
1124 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1126 *pp_shortcut = strdup( *pp_shortcut );
1129 /* We strdup() these entries so that they are still valid when the
1130 * module is unloaded. */
1131 p_module->psz_object_name = strdup( p_module->psz_object_name );
1132 p_module->psz_capability = strdup( p_module->psz_capability );
1133 p_module->psz_shortname = p_module->psz_shortname ?
1134 strdup( p_module->psz_shortname ) : NULL;
1135 p_module->psz_longname = strdup( p_module->psz_longname );
1137 if( p_module->psz_program != NULL )
1139 p_module->psz_program = strdup( p_module->psz_program );
1142 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1144 DupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1148 /*****************************************************************************
1149 * UndupModule: free a duplicated module.
1150 *****************************************************************************
1151 * This function frees the allocations done in DupModule().
1152 *****************************************************************************/
1153 static void UndupModule( module_t *p_module )
1158 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1160 UndupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1163 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1165 free( *pp_shortcut );
1168 free( p_module->psz_object_name );
1169 free( p_module->psz_capability );
1170 if( p_module->psz_shortname ) free( p_module->psz_shortname );
1171 free( p_module->psz_longname );
1173 if( p_module->psz_program != NULL )
1175 free( p_module->psz_program );
1179 #endif /* HAVE_DYNAMIC_PLUGINS */
1181 /*****************************************************************************
1182 * AllocateBuiltinModule: initialize a builtin module.
1183 *****************************************************************************
1184 * This function registers a builtin module and allocates a structure
1185 * for its information data. The module can then be handled by module_Need
1186 * and module_Unneed. It can be removed by DeleteModule.
1187 *****************************************************************************/
1188 static int AllocateBuiltinModule( vlc_object_t * p_this,
1189 int ( *pf_entry ) ( module_t * ) )
1191 module_t * p_module;
1193 /* Now that we have successfully loaded the module, we can
1194 * allocate a structure for it */
1195 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1196 if( p_module == NULL )
1198 msg_Err( p_this, "out of memory" );
1202 /* Initialize the module : fill p_module->psz_object_name, etc. */
1203 if( pf_entry( p_module ) != 0 )
1205 /* With a well-written module we shouldn't have to print an
1206 * additional error message here, but just make sure. */
1207 msg_Err( p_this, "failed calling entry point in builtin module" );
1208 vlc_object_destroy( p_module );
1212 /* Everything worked fine ! The module is ready to be added to the list. */
1213 p_module->b_builtin = VLC_TRUE;
1215 /* msg_Dbg( p_this, "builtin \"%s\", %s",
1216 p_module->psz_object_name, p_module->psz_longname ); */
1218 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
1223 /*****************************************************************************
1224 * DeleteModule: delete a module and its structure.
1225 *****************************************************************************
1226 * This function can only be called if the module isn't being used.
1227 *****************************************************************************/
1228 static int DeleteModule( module_t * p_module )
1230 vlc_object_detach( p_module );
1232 /* We free the structures that we strdup()ed in Allocate*Module(). */
1233 #ifdef HAVE_DYNAMIC_PLUGINS
1234 if( !p_module->b_builtin )
1236 if( p_module->b_loaded && p_module->b_unloadable )
1238 CloseModule( p_module->handle );
1240 UndupModule( p_module );
1241 free( p_module->psz_filename );
1245 /* Free and detach the object's children */
1246 while( p_module->i_children )
1248 vlc_object_t *p_this = p_module->pp_children[0];
1249 vlc_object_detach( p_this );
1250 vlc_object_destroy( p_this );
1253 config_Free( p_module );
1254 vlc_object_destroy( p_module );
1259 #ifdef HAVE_DYNAMIC_PLUGINS
1260 /*****************************************************************************
1261 * CallEntry: call an entry point.
1262 *****************************************************************************
1263 * This function calls a symbol given its name and a module structure. The
1264 * symbol MUST refer to a function returning int and taking a module_t* as
1266 *****************************************************************************/
1267 static int CallEntry( module_t * p_module )
1269 static char *psz_name = "vlc_entry" MODULE_SUFFIX;
1270 int (* pf_symbol) ( module_t * p_module );
1272 /* Try to resolve the symbol */
1273 pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
1275 if( pf_symbol == NULL )
1277 #if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
1278 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
1279 psz_name, p_module->psz_filename );
1280 #elif defined(HAVE_DL_WINDOWS)
1281 char *psz_error = GetWindowsError();
1282 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1283 psz_name, p_module->psz_filename, psz_error );
1285 #elif defined(HAVE_DL_DLOPEN)
1286 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1287 psz_name, p_module->psz_filename, dlerror() );
1288 #elif defined(HAVE_DL_SHL_LOAD)
1289 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1290 psz_name, p_module->psz_filename, strerror(errno) );
1292 # error "Something is wrong in modules.c"
1297 /* We can now try to call the symbol */
1298 if( pf_symbol( p_module ) != 0 )
1300 /* With a well-written module we shouldn't have to print an
1301 * additional error message here, but just make sure. */
1302 msg_Err( p_module, "failed calling symbol \"%s\" in file `%s'",
1303 psz_name, p_module->psz_filename );
1307 /* Everything worked fine, we can return */
1311 /*****************************************************************************
1312 * LoadModule: loads a dynamic library
1313 *****************************************************************************
1314 * This function loads a dynamically linked library using a system dependant
1315 * method. Will return 0 on success as well as the module handle.
1316 *****************************************************************************/
1317 static int LoadModule( vlc_object_t *p_this, char *psz_file,
1318 module_handle_t *p_handle )
1320 module_handle_t handle;
1322 #if defined(HAVE_DL_DYLD)
1323 NSObjectFileImage image;
1324 NSObjectFileImageReturnCode ret;
1326 ret = NSCreateObjectFileImageFromFile( psz_file, &image );
1328 if( ret != NSObjectFileImageSuccess )
1330 msg_Warn( p_this, "cannot create image from `%s'", psz_file );
1334 /* Open the dynamic module */
1335 handle = NSLinkModule( image, psz_file,
1336 NSLINKMODULE_OPTION_RETURN_ON_ERROR );
1340 NSLinkEditErrors errors;
1341 const char *psz_file, *psz_err;
1343 NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
1344 msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
1345 NSDestroyObjectFileImage( image );
1349 /* Destroy our image, we won't need it */
1350 NSDestroyObjectFileImage( image );
1352 #elif defined(HAVE_DL_BEOS)
1353 handle = load_add_on( psz_file );
1356 msg_Warn( p_this, "cannot load module `%s'", psz_file );
1360 #elif defined(HAVE_DL_WINDOWS)
1363 wchar_t psz_wfile[MAX_PATH];
1364 MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
1365 handle = LoadLibrary( psz_wfile );
1368 handle = LoadLibrary( psz_file );
1370 if( handle == NULL )
1372 char *psz_err = GetWindowsError();
1373 msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
1378 #elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
1379 /* static is OK, we are called atomically */
1380 static vlc_bool_t b_kde = VLC_FALSE;
1382 # if defined(SYS_LINUX)
1383 /* XXX HACK #1 - we should NOT open modules with RTLD_GLOBAL, or we
1384 * are going to get namespace collisions when two modules have common
1385 * public symbols, but ALSA is being a pest here. */
1386 if( strstr( psz_file, "alsa_plugin" ) )
1388 handle = dlopen( psz_file, RTLD_NOW | RTLD_GLOBAL );
1389 if( handle == NULL )
1391 msg_Warn( p_this, "cannot load module `%s' (%s)",
1392 psz_file, dlerror() );
1397 /* XXX HACK #2 - the ugly KDE workaround. It seems that libkdewhatever
1398 * causes dlopen() to segfault if libstdc++ is not loaded in the caller,
1399 * so we just load libstdc++. Bwahahaha! ph34r! -- Sam. */
1400 /* Update: FYI, this is Debian bug #180505, and seems to be fixed. */
1401 if( !b_kde && !strstr( psz_file, "kde" ) )
1403 dlopen( "libstdc++.so.6", RTLD_NOW )
1404 || dlopen( "libstdc++.so.5", RTLD_NOW )
1405 || dlopen( "libstdc++.so.4", RTLD_NOW )
1406 || dlopen( "libstdc++.so.3", RTLD_NOW );
1410 handle = dlopen( psz_file, RTLD_NOW );
1411 if( handle == NULL )
1413 msg_Warn( p_this, "cannot load module `%s' (%s)",
1414 psz_file, dlerror() );
1418 #elif defined(HAVE_DL_DLOPEN)
1419 # if defined(DL_LAZY)
1420 handle = dlopen( psz_file, DL_LAZY );
1422 handle = dlopen( psz_file, 0 );
1424 if( handle == NULL )
1426 msg_Warn( p_this, "cannot load module `%s' (%s)",
1427 psz_file, dlerror() );
1431 #elif defined(HAVE_DL_SHL_LOAD)
1432 handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
1433 if( handle == NULL )
1435 msg_Warn( p_this, "cannot load module `%s' (%s)",
1436 psz_file, strerror(errno) );
1441 # error "Something is wrong in modules.c"
1449 /*****************************************************************************
1450 * CloseModule: unload a dynamic library
1451 *****************************************************************************
1452 * This function unloads a previously opened dynamically linked library
1453 * using a system dependant method. No return value is taken in consideration,
1454 * since some libraries sometimes refuse to close properly.
1455 *****************************************************************************/
1456 static void CloseModule( module_handle_t handle )
1458 #if defined(HAVE_DL_DYLD)
1459 NSUnLinkModule( handle, FALSE );
1461 #elif defined(HAVE_DL_BEOS)
1462 unload_add_on( handle );
1464 #elif defined(HAVE_DL_WINDOWS)
1465 FreeLibrary( handle );
1467 #elif defined(HAVE_DL_DLOPEN)
1470 #elif defined(HAVE_DL_SHL_LOAD)
1471 shl_unload( handle );
1477 /*****************************************************************************
1478 * GetSymbol: get a symbol from a dynamic library
1479 *****************************************************************************
1480 * This function queries a loaded library for a symbol specified in a
1481 * string, and returns a pointer to it. We don't check for dlerror() or
1482 * similar functions, since we want a non-NULL symbol anyway.
1483 *****************************************************************************/
1484 static void * _module_getsymbol( module_handle_t, const char * );
1486 static void * GetSymbol( module_handle_t handle, const char * psz_function )
1488 void * p_symbol = _module_getsymbol( handle, psz_function );
1490 /* MacOS X dl library expects symbols to begin with "_". So do
1491 * some other operating systems. That's really lame, but hey, what
1493 if( p_symbol == NULL )
1495 char *psz_call = malloc( strlen( psz_function ) + 2 );
1497 strcpy( psz_call + 1, psz_function );
1498 psz_call[ 0 ] = '_';
1499 p_symbol = _module_getsymbol( handle, psz_call );
1506 static void * _module_getsymbol( module_handle_t handle,
1507 const char * psz_function )
1509 #if defined(HAVE_DL_DYLD)
1510 NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
1511 return NSAddressOfSymbol( sym );
1513 #elif defined(HAVE_DL_BEOS)
1515 if( B_OK == get_image_symbol( handle, psz_function,
1516 B_SYMBOL_TYPE_TEXT, &p_symbol ) )
1525 #elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
1526 wchar_t psz_real[256];
1527 MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
1529 return (void *)GetProcAddress( handle, psz_real );
1531 #elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
1532 return (void *)GetProcAddress( handle, (char *)psz_function );
1534 #elif defined(HAVE_DL_DLOPEN)
1535 return dlsym( handle, psz_function );
1537 #elif defined(HAVE_DL_SHL_LOAD)
1539 shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
1545 #if defined(HAVE_DL_WINDOWS)
1546 static char * GetWindowsError( void )
1548 #if defined(UNDER_CE)
1549 wchar_t psz_tmp[MAX_PATH];
1550 char * psz_buffer = malloc( MAX_PATH );
1552 char * psz_tmp = malloc( MAX_PATH );
1554 int i = 0, i_error = GetLastError();
1556 FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
1557 NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
1558 (LPTSTR)psz_tmp, MAX_PATH, NULL );
1560 /* Go to the end of the string */
1561 while( psz_tmp[i] && psz_tmp[i] != _T('\r') && psz_tmp[i] != _T('\n') )
1568 #if defined(UNDER_CE)
1569 swprintf( psz_tmp + i, L" (error %i)", i_error );
1570 psz_tmp[ 255 ] = L'\0';
1572 snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
1573 psz_tmp[ 255 ] = '\0';
1577 #if defined(UNDER_CE)
1578 wcstombs( psz_buffer, psz_tmp, MAX_PATH );
1584 #endif /* HAVE_DL_WINDOWS */
1586 /*****************************************************************************
1587 * LoadPluginsCache: loads the plugins cache file
1588 *****************************************************************************
1589 * This function will load the plugin cache if present and valid. This cache
1590 * will in turn be queried by AllocateAllPlugins() to see if it needs to
1591 * actually load the dynamically loadable module.
1592 * This allows us to only fully load plugins when they are actually used.
1593 *****************************************************************************/
1594 static void CacheLoad( vlc_object_t *p_this )
1596 char *psz_filename, *psz_homedir;
1598 int i, j, i_size, i_read;
1599 char p_cachestring[sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE)];
1600 char p_cachelang[6], p_lang[6];
1602 module_cache_t **pp_cache = 0;
1603 int32_t i_file_size, i_marker;
1605 psz_homedir = p_this->p_vlc->psz_homedir;
1608 msg_Err( p_this, "psz_homedir is null" );
1612 i_size = asprintf( &psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1613 PLUGINSCACHE_DIR, CacheName() );
1616 msg_Err( p_this, "out of memory" );
1620 if( p_this->p_libvlc->p_module_bank->b_cache_delete )
1622 #if !defined( UNDER_CE )
1623 unlink( psz_filename );
1625 wchar_t psz_wf[MAX_PATH];
1626 MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
1627 DeleteFile( psz_wf );
1629 msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
1630 free( psz_filename );
1634 msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
1636 file = fopen( psz_filename, "rb" );
1639 msg_Warn( p_this, "could not open plugins cache file %s for reading",
1641 free( psz_filename );
1644 free( psz_filename );
1646 /* Check the file size */
1647 i_read = fread( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1648 if( i_read != sizeof(i_file_size) )
1650 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1656 fseek( file, 0, SEEK_END );
1657 if( ftell( file ) != i_file_size )
1659 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1660 "(corrupted size)" );
1664 fseek( file, sizeof(i_file_size), SEEK_SET );
1666 /* Check the file is a plugins cache */
1667 i_size = sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE) - 1;
1668 i_read = fread( p_cachestring, sizeof(char), i_size, file );
1669 if( i_read != i_size ||
1670 memcmp( p_cachestring, PLUGINSCACHE_DIR COPYRIGHT_MESSAGE, i_size ) )
1672 msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
1677 /* Check Sub-version number */
1678 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1679 if( i_read != sizeof(i_marker) || i_marker != CACHE_SUBVERSION_NUM )
1681 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1682 "(corrupted header)" );
1687 /* Check the language hasn't changed */
1688 sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
1689 i_read = fread( p_cachelang, sizeof(char), i_size, file );
1690 if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
1692 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1693 "(language changed)" );
1698 /* Check header marker */
1699 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1700 if( i_read != sizeof(i_marker) ||
1701 i_marker != ftell( file ) - (int)sizeof(i_marker) )
1703 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1704 "(corrupted header)" );
1709 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1710 fread( &i_cache, sizeof(char), sizeof(i_cache), file );
1712 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache =
1713 malloc( i_cache * sizeof(void *) );
1715 #define LOAD_IMMEDIATE(a) \
1716 if( fread( &a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
1717 #define LOAD_STRING(a) \
1718 { if( fread( &i_size, sizeof(char), sizeof(i_size), file ) \
1719 != sizeof(i_size) ) goto error; \
1720 if( i_size && i_size < 16384 ) { \
1721 a = malloc( i_size ); \
1722 if( fread( a, sizeof(char), i_size, file ) != (size_t)i_size ) \
1724 if( a[i_size-1] ) { \
1731 for( i = 0; i < i_cache; i++ )
1736 pp_cache[i] = malloc( sizeof(module_cache_t) );
1737 p_this->p_libvlc->p_module_bank->i_loaded_cache++;
1739 /* Load common info */
1740 LOAD_STRING( pp_cache[i]->psz_file );
1741 LOAD_IMMEDIATE( pp_cache[i]->i_time );
1742 LOAD_IMMEDIATE( pp_cache[i]->i_size );
1743 LOAD_IMMEDIATE( pp_cache[i]->b_junk );
1745 if( pp_cache[i]->b_junk ) continue;
1747 pp_cache[i]->p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1749 /* Load additional infos */
1750 LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
1751 LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
1752 LOAD_STRING( pp_cache[i]->p_module->psz_longname );
1753 LOAD_STRING( pp_cache[i]->p_module->psz_program );
1754 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1756 LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
1758 LOAD_STRING( pp_cache[i]->p_module->psz_capability );
1759 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
1760 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
1761 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
1762 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
1763 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
1766 if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
1769 LOAD_STRING( pp_cache[i]->p_module->psz_filename );
1771 LOAD_IMMEDIATE( i_submodules );
1773 while( i_submodules-- )
1775 module_t *p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE);
1776 vlc_object_attach( p_module, pp_cache[i]->p_module );
1777 p_module->b_submodule = VLC_TRUE;
1779 LOAD_STRING( p_module->psz_object_name );
1780 LOAD_STRING( p_module->psz_shortname );
1781 LOAD_STRING( p_module->psz_longname );
1782 LOAD_STRING( p_module->psz_program );
1783 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1785 LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
1787 LOAD_STRING( p_module->psz_capability );
1788 LOAD_IMMEDIATE( p_module->i_score );
1789 LOAD_IMMEDIATE( p_module->i_cpu );
1790 LOAD_IMMEDIATE( p_module->b_unloadable );
1791 LOAD_IMMEDIATE( p_module->b_reentrant );
1800 msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
1803 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1809 int CacheLoadConfig( module_t *p_module, FILE *file )
1814 /* Calculate the structure length */
1815 LOAD_IMMEDIATE( p_module->i_config_items );
1816 LOAD_IMMEDIATE( p_module->i_bool_items );
1818 LOAD_IMMEDIATE( i_lines );
1820 /* Allocate memory */
1821 p_module->p_config =
1822 (module_config_t *)malloc( sizeof(module_config_t) * (i_lines + 1));
1823 if( p_module->p_config == NULL )
1825 msg_Err( p_module, "config error: can't duplicate p_config" );
1829 /* Do the duplication job */
1830 for( i = 0; i < i_lines ; i++ )
1832 LOAD_IMMEDIATE( p_module->p_config[i] );
1834 LOAD_STRING( p_module->p_config[i].psz_type );
1835 LOAD_STRING( p_module->p_config[i].psz_name );
1836 LOAD_STRING( p_module->p_config[i].psz_text );
1837 LOAD_STRING( p_module->p_config[i].psz_longtext );
1838 LOAD_STRING( p_module->p_config[i].psz_current );
1839 LOAD_STRING( p_module->p_config[i].psz_value_orig );
1841 p_module->p_config[i].psz_value =
1842 p_module->p_config[i].psz_value_orig ?
1843 strdup( p_module->p_config[i].psz_value_orig ) : 0;
1844 p_module->p_config[i].i_value = p_module->p_config[i].i_value_orig;
1845 p_module->p_config[i].f_value = p_module->p_config[i].f_value_orig;
1846 p_module->p_config[i].i_value_saved = p_module->p_config[i].i_value;
1847 p_module->p_config[i].f_value_saved = p_module->p_config[i].f_value;
1848 p_module->p_config[i].psz_value_saved = 0;
1849 p_module->p_config[i].b_dirty = VLC_FALSE;
1851 p_module->p_config[i].p_lock = &p_module->object_lock;
1853 if( p_module->p_config[i].i_list )
1855 if( p_module->p_config[i].ppsz_list )
1857 p_module->p_config[i].ppsz_list =
1858 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1859 if( p_module->p_config[i].ppsz_list )
1861 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1862 LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
1863 p_module->p_config[i].ppsz_list[j] = NULL;
1866 if( p_module->p_config[i].ppsz_list_text )
1868 p_module->p_config[i].ppsz_list_text =
1869 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1870 if( p_module->p_config[i].ppsz_list_text )
1872 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1873 LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
1874 p_module->p_config[i].ppsz_list_text[j] = NULL;
1877 if( p_module->p_config[i].pi_list )
1879 p_module->p_config[i].pi_list =
1880 malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
1881 if( p_module->p_config[i].pi_list )
1883 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1884 LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
1889 if( p_module->p_config[i].i_action )
1891 p_module->p_config[i].ppf_action =
1892 malloc( p_module->p_config[i].i_action * sizeof(void *) );
1893 p_module->p_config[i].ppsz_action_text =
1894 malloc( p_module->p_config[i].i_action * sizeof(char *) );
1896 for( j = 0; j < p_module->p_config[i].i_action; j++ )
1898 p_module->p_config[i].ppf_action[j] = 0;
1899 LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
1903 LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
1906 p_module->p_config[i].i_type = CONFIG_HINT_END;
1912 return VLC_EGENERIC;
1915 /*****************************************************************************
1916 * SavePluginsCache: saves the plugins cache to a file
1917 *****************************************************************************/
1918 static void CacheSave( vlc_object_t *p_this )
1920 static char const psz_tag[] =
1921 "Signature: 8a477f597d28d172789f06886806bc55\r\n"
1922 "# This file is a cache directory tag created by VLC.\r\n"
1923 "# For information about cache directory tags, see:\r\n"
1924 "# http://www.brynosaurus.com/cachedir/\r\n";
1926 char *psz_filename, *psz_homedir;
1929 module_cache_t **pp_cache;
1930 int32_t i_file_size = 0;
1932 psz_homedir = p_this->p_vlc->psz_homedir;
1935 msg_Err( p_this, "psz_homedir is null" );
1939 (char *)malloc( sizeof("/" CONFIG_DIR "/" PLUGINSCACHE_DIR "/" ) +
1940 strlen(psz_homedir) + strlen(CacheName()) );
1944 msg_Err( p_this, "out of memory" );
1948 sprintf( psz_filename, "%s/%s", psz_homedir, CONFIG_DIR );
1950 config_CreateDir( p_this, psz_filename );
1952 strcat( psz_filename, "/" PLUGINSCACHE_DIR );
1954 config_CreateDir( p_this, psz_filename );
1956 strcat( psz_filename, "/CACHEDIR.TAG" );
1958 file = fopen( psz_filename, "wb" );
1961 fwrite( psz_tag, 1, strlen(psz_tag), file );
1965 sprintf( psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1966 PLUGINSCACHE_DIR, CacheName() );
1968 msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
1970 file = fopen( psz_filename, "wb" );
1973 msg_Warn( p_this, "could not open plugins cache file %s for writing",
1975 free( psz_filename );
1978 free( psz_filename );
1980 /* Empty space for file size */
1981 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1983 /* Contains version number */
1984 fprintf( file, "%s", PLUGINSCACHE_DIR COPYRIGHT_MESSAGE );
1986 /* Sub-version number (to avoid breakage in the dev version when cache
1987 * structure changes) */
1988 i_file_size = CACHE_SUBVERSION_NUM;
1989 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1992 fprintf( file, "%5.5s", _("C") );
1995 i_file_size = ftell( file );
1996 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1998 i_cache = p_this->p_libvlc->p_module_bank->i_cache;
1999 pp_cache = p_this->p_libvlc->p_module_bank->pp_cache;
2001 fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
2003 #define SAVE_IMMEDIATE(a) \
2004 fwrite( &a, sizeof(char), sizeof(a), file )
2005 #define SAVE_STRING(a) \
2006 { i_size = a ? strlen( a ) + 1 : 0; \
2007 fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
2008 if( a ) fwrite( a, sizeof(char), i_size, file ); \
2011 for( i = 0; i < i_cache; i++ )
2014 int32_t i_submodule;
2016 /* Save common info */
2017 SAVE_STRING( pp_cache[i]->psz_file );
2018 SAVE_IMMEDIATE( pp_cache[i]->i_time );
2019 SAVE_IMMEDIATE( pp_cache[i]->i_size );
2020 SAVE_IMMEDIATE( pp_cache[i]->b_junk );
2022 if( pp_cache[i]->b_junk ) continue;
2024 /* Save additional infos */
2025 SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
2026 SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
2027 SAVE_STRING( pp_cache[i]->p_module->psz_longname );
2028 SAVE_STRING( pp_cache[i]->p_module->psz_program );
2029 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2031 SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
2033 SAVE_STRING( pp_cache[i]->p_module->psz_capability );
2034 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
2035 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
2036 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
2037 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
2038 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
2041 CacheSaveConfig( pp_cache[i]->p_module, file );
2043 SAVE_STRING( pp_cache[i]->p_module->psz_filename );
2045 i_submodule = pp_cache[i]->p_module->i_children;
2046 SAVE_IMMEDIATE( i_submodule );
2047 for( i_submodule = 0; i_submodule < pp_cache[i]->p_module->i_children;
2050 module_t *p_module =
2051 (module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
2053 SAVE_STRING( p_module->psz_object_name );
2054 SAVE_STRING( p_module->psz_shortname );
2055 SAVE_STRING( p_module->psz_longname );
2056 SAVE_STRING( p_module->psz_program );
2057 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
2059 SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
2061 SAVE_STRING( p_module->psz_capability );
2062 SAVE_IMMEDIATE( p_module->i_score );
2063 SAVE_IMMEDIATE( p_module->i_cpu );
2064 SAVE_IMMEDIATE( p_module->b_unloadable );
2065 SAVE_IMMEDIATE( p_module->b_reentrant );
2069 /* Fill-up file size */
2070 i_file_size = ftell( file );
2071 fseek( file, 0, SEEK_SET );
2072 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2079 void CacheSaveConfig( module_t *p_module, FILE *file )
2081 int i, j, i_lines = 0;
2082 module_config_t *p_item;
2085 SAVE_IMMEDIATE( p_module->i_config_items );
2086 SAVE_IMMEDIATE( p_module->i_bool_items );
2088 for( p_item = p_module->p_config; p_item->i_type != CONFIG_HINT_END;
2089 p_item++ ) i_lines++;
2091 SAVE_IMMEDIATE( i_lines );
2093 for( i = 0; i < i_lines ; i++ )
2095 SAVE_IMMEDIATE( p_module->p_config[i] );
2097 SAVE_STRING( p_module->p_config[i].psz_type );
2098 SAVE_STRING( p_module->p_config[i].psz_name );
2099 SAVE_STRING( p_module->p_config[i].psz_text );
2100 SAVE_STRING( p_module->p_config[i].psz_longtext );
2101 SAVE_STRING( p_module->p_config[i].psz_current );
2102 SAVE_STRING( p_module->p_config[i].psz_value_orig );
2104 if( p_module->p_config[i].i_list )
2106 if( p_module->p_config[i].ppsz_list )
2108 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2109 SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
2112 if( p_module->p_config[i].ppsz_list_text )
2114 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2115 SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
2117 if( p_module->p_config[i].pi_list )
2119 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2120 SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
2124 for( j = 0; j < p_module->p_config[i].i_action; j++ )
2125 SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
2127 SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
2131 /*****************************************************************************
2132 * CacheName: Return the cache file name for this platform.
2133 *****************************************************************************/
2134 static char *CacheName( void )
2136 static char psz_cachename[32];
2137 static vlc_bool_t b_initialised = VLC_FALSE;
2139 if( !b_initialised )
2141 /* Code int size, pointer size and endianness in the filename */
2142 int32_t x = 0xbe00001e;
2143 sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", sizeof(int),
2144 sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
2145 b_initialised = VLC_TRUE;
2148 return psz_cachename;
2151 /*****************************************************************************
2152 * CacheMerge: Merge a cache module descriptor with a full module descriptor.
2153 *****************************************************************************/
2154 static void CacheMerge( vlc_object_t *p_this, module_t *p_cache,
2155 module_t *p_module )
2159 p_cache->pf_activate = p_module->pf_activate;
2160 p_cache->pf_deactivate = p_module->pf_deactivate;
2161 p_cache->p_symbols = p_module->p_symbols;
2162 p_cache->handle = p_module->handle;
2164 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
2166 module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
2167 module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
2168 p_cchild->pf_activate = p_child->pf_activate;
2169 p_cchild->pf_deactivate = p_child->pf_deactivate;
2170 p_cchild->p_symbols = p_child->p_symbols;
2173 p_cache->b_loaded = VLC_TRUE;
2174 p_module->b_loaded = VLC_FALSE;
2177 /*****************************************************************************
2178 * FindPluginCache: finds the cache entry corresponding to a file
2179 *****************************************************************************/
2180 static module_cache_t *CacheFind( vlc_object_t *p_this, char *psz_file,
2181 int64_t i_time, int64_t i_size )
2183 module_cache_t **pp_cache;
2186 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache;
2187 i_cache = p_this->p_libvlc->p_module_bank->i_loaded_cache;
2189 for( i = 0; i < i_cache; i++ )
2191 if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
2192 pp_cache[i]->i_time == i_time &&
2193 pp_cache[i]->i_size == i_size ) return pp_cache[i];
2199 #endif /* HAVE_DYNAMIC_PLUGINS */