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>
42 #elif defined( UNDER_CE )
43 # include <windows.h> /* GetFileAttributes() */
45 # include "../extras/dirent.h"
48 #ifdef HAVE_SYS_TYPES_H
49 # include <sys/types.h>
51 #ifdef HAVE_SYS_STAT_H
52 # include <sys/stat.h>
58 #define HAVE_DYNAMIC_PLUGINS
59 #if defined(HAVE_DL_DYLD)
60 # if defined(HAVE_MACH_O_DYLD_H)
61 # include <mach-o/dyld.h>
63 #elif defined(HAVE_DL_BEOS)
64 # if defined(HAVE_IMAGE_H)
67 #elif defined(HAVE_DL_WINDOWS)
69 #elif defined(HAVE_DL_DLOPEN)
70 # if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
73 # if defined(HAVE_SYS_DL_H)
76 #elif defined(HAVE_DL_SHL_LOAD)
77 # if defined(HAVE_DL_H)
81 # undef HAVE_DYNAMIC_PLUGINS
84 #include "vlc_error.h"
86 #include "vlc_interface.h"
87 #include "intf_eject.h"
89 #include "vlc_playlist.h"
91 #include "vlc_video.h"
92 #include "video_output.h"
93 #include "vout_synchro.h"
96 #include "audio_output.h"
97 #include "aout_internal.h"
99 #include "stream_output.h"
101 #include "vlc_httpd.h"
103 #include "iso_lang.h"
106 #include "vlc_block.h"
110 #ifdef HAVE_DYNAMIC_PLUGINS
111 # include "modules_plugin.h"
114 #if defined( UNDER_CE )
115 # include "modules_builtin_evc.h"
116 #elif defined( _MSC_VER )
117 # include "modules_builtin_msvc.h"
119 # include "modules_builtin.h"
123 #if defined( WIN32) || defined( UNDER_CE )
124 /* Avoid name collisions */
125 # define LoadModule(a,b,c) _LoadModule(a,b,c)
128 /*****************************************************************************
130 *****************************************************************************/
131 #ifdef HAVE_DYNAMIC_PLUGINS
132 static void AllocateAllPlugins ( vlc_object_t * );
133 static void AllocatePluginDir ( vlc_object_t *, const char *, int );
134 static int AllocatePluginFile ( vlc_object_t *, char *, int64_t, int64_t );
135 static module_t * AllocatePlugin( vlc_object_t *, char * );
137 static int AllocateBuiltinModule( vlc_object_t *, int ( * ) ( module_t * ) );
138 static int DeleteModule ( module_t * );
139 #ifdef HAVE_DYNAMIC_PLUGINS
140 static void DupModule ( module_t * );
141 static void UndupModule ( module_t * );
142 static int CallEntry ( module_t * );
143 static int LoadModule ( vlc_object_t *, char *, module_handle_t * );
144 static void CloseModule ( module_handle_t );
145 static void * GetSymbol ( module_handle_t, const char * );
146 static void CacheLoad ( vlc_object_t * );
147 static int CacheLoadConfig ( module_t *, FILE * );
148 static void CacheSave ( vlc_object_t * );
149 static void CacheSaveConfig ( module_t *, FILE * );
150 static char * CacheName ( void );
151 static void CacheMerge ( vlc_object_t *, module_t *, module_t * );
152 static module_cache_t * CacheFind( vlc_object_t *, char *, int64_t, int64_t );
154 #if defined(HAVE_DL_WINDOWS)
155 static char * GetWindowsError ( void );
159 /*****************************************************************************
160 * module_InitBank: create the module bank.
161 *****************************************************************************
162 * This function creates a module bank structure which will be filled later
163 * on with all the modules found.
164 *****************************************************************************/
165 void __module_InitBank( vlc_object_t *p_this )
167 module_bank_t *p_bank;
170 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
171 var_Get( p_this->p_libvlc, "libvlc", &lockval );
172 vlc_mutex_lock( lockval.p_address );
173 if( p_this->p_libvlc->p_module_bank )
175 p_this->p_libvlc->p_module_bank->i_usage++;
176 vlc_mutex_unlock( lockval.p_address );
177 var_Destroy( p_this->p_libvlc, "libvlc" );
180 vlc_mutex_unlock( lockval.p_address );
181 var_Destroy( p_this->p_libvlc, "libvlc" );
183 p_bank = vlc_object_create( p_this, sizeof(module_bank_t) );
184 p_bank->psz_object_name = "module bank";
186 p_bank->i_cache = p_bank->i_loaded_cache = 0;
187 p_bank->pp_cache = p_bank->pp_loaded_cache = 0;
188 p_bank->b_cache = p_bank->b_cache_dirty =
189 p_bank->b_cache_delete = VLC_FALSE;
192 * Store the symbols to be exported
194 #ifdef HAVE_DYNAMIC_PLUGINS
195 STORE_SYMBOLS( &p_bank->symbols );
198 /* Everything worked, attach the object */
199 p_this->p_libvlc->p_module_bank = p_bank;
200 vlc_object_attach( p_bank, p_this->p_libvlc );
202 module_LoadMain( p_this );
207 /*****************************************************************************
208 * module_ResetBank: reset the module bank.
209 *****************************************************************************
210 * This function resets the module bank by unloading all unused plugin
212 *****************************************************************************/
213 void __module_ResetBank( vlc_object_t *p_this )
215 msg_Err( p_this, "FIXME: module_ResetBank unimplemented" );
219 /*****************************************************************************
220 * module_EndBank: empty the module bank.
221 *****************************************************************************
222 * This function unloads all unused plugin modules and empties the module
223 * bank in case of success.
224 *****************************************************************************/
225 void __module_EndBank( vlc_object_t *p_this )
230 var_Create( p_this->p_libvlc, "libvlc", VLC_VAR_MUTEX );
231 var_Get( p_this->p_libvlc, "libvlc", &lockval );
232 vlc_mutex_lock( lockval.p_address );
233 if( !p_this->p_libvlc->p_module_bank )
235 vlc_mutex_unlock( lockval.p_address );
236 var_Destroy( p_this->p_libvlc, "libvlc" );
239 if( --p_this->p_libvlc->p_module_bank->i_usage )
241 vlc_mutex_unlock( lockval.p_address );
242 var_Destroy( p_this->p_libvlc, "libvlc" );
245 vlc_mutex_unlock( lockval.p_address );
246 var_Destroy( p_this->p_libvlc, "libvlc" );
248 #ifdef HAVE_DYNAMIC_PLUGINS
249 #define p_bank p_this->p_libvlc->p_module_bank
250 if( p_bank->b_cache ) CacheSave( p_this );
251 while( p_bank->i_loaded_cache-- )
253 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache]->psz_file );
254 free( p_bank->pp_loaded_cache[p_bank->i_loaded_cache] );
255 if( !p_bank->i_loaded_cache ) free( p_bank->pp_loaded_cache );
257 while( p_bank->i_cache-- )
259 free( p_bank->pp_cache[p_bank->i_cache]->psz_file );
260 free( p_bank->pp_cache[p_bank->i_cache] );
261 if( !p_bank->i_cache ) free( p_bank->pp_cache );
266 vlc_object_detach( p_this->p_libvlc->p_module_bank );
268 while( p_this->p_libvlc->p_module_bank->i_children )
270 p_next = (module_t *)p_this->p_libvlc->p_module_bank->pp_children[0];
272 if( DeleteModule( p_next ) )
274 /* Module deletion failed */
275 msg_Err( p_this, "module \"%s\" can't be removed, trying harder",
276 p_next->psz_object_name );
278 /* We just free the module by hand. Niahahahahaha. */
279 vlc_object_detach( p_next );
280 vlc_object_destroy( p_next );
284 vlc_object_destroy( p_this->p_libvlc->p_module_bank );
289 /*****************************************************************************
290 * module_LoadMain: load the main program info into the module bank.
291 *****************************************************************************
292 * This function fills the module bank structure with the main module infos.
293 * This is very useful as it will allow us to consider the main program just
294 * as another module, and for instance the configuration options of main will
295 * be available in the module bank structure just as for every other module.
296 *****************************************************************************/
297 void __module_LoadMain( vlc_object_t *p_this )
299 AllocateBuiltinModule( p_this, vlc_entry__main );
302 /*****************************************************************************
303 * module_LoadBuiltins: load all modules which we built with.
304 *****************************************************************************
305 * This function fills the module bank structure with the builtin modules.
306 *****************************************************************************/
307 void __module_LoadBuiltins( vlc_object_t * p_this )
309 msg_Dbg( p_this, "checking builtin modules" );
310 ALLOCATE_ALL_BUILTINS();
313 /*****************************************************************************
314 * module_LoadPlugins: load all plugin modules we can find.
315 *****************************************************************************
316 * This function fills the module bank structure with the plugin modules.
317 *****************************************************************************/
318 void __module_LoadPlugins( vlc_object_t * p_this )
320 #ifdef HAVE_DYNAMIC_PLUGINS
321 msg_Dbg( p_this, "checking plugin modules" );
323 if( config_GetInt( p_this, "plugins-cache" ) )
324 p_this->p_libvlc->p_module_bank->b_cache = VLC_TRUE;
326 if( p_this->p_libvlc->p_module_bank->b_cache ||
327 p_this->p_libvlc->p_module_bank->b_cache_delete ) CacheLoad( p_this );
329 AllocateAllPlugins( p_this );
333 /*****************************************************************************
334 * module_Need: return the best module function, given a capability list.
335 *****************************************************************************
336 * This function returns the module that best fits the asked capabilities.
337 *****************************************************************************/
338 module_t * __module_Need( vlc_object_t *p_this, const char *psz_capability,
339 const char *psz_name, vlc_bool_t b_strict )
341 typedef struct module_list_t module_list_t;
348 module_list_t *p_next;
351 module_list_t *p_list, *p_first, *p_tmp;
354 int i_which_module, i_index = 0;
355 vlc_bool_t b_intf = VLC_FALSE;
360 char *psz_shortcuts = NULL, *psz_var = NULL;
361 vlc_bool_t b_force_backup = p_this->b_force;
363 msg_Dbg( p_this, "looking for %s module", psz_capability );
365 /* Deal with variables */
366 if( psz_name && psz_name[0] == '$' )
369 var_Create( p_this, psz_name + 1, VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
370 var_Get( p_this, psz_name + 1, &val );
371 psz_var = val.psz_string;
375 /* Count how many different shortcuts were asked for */
376 if( psz_name && *psz_name )
378 char *psz_parser, *psz_last_shortcut;
380 /* If the user wants none, give him none. */
381 if( !strcmp( psz_name, "none" ) )
383 if( psz_var ) free( psz_var );
388 psz_shortcuts = psz_last_shortcut = strdup( psz_name );
390 for( psz_parser = psz_shortcuts; *psz_parser; psz_parser++ )
392 if( *psz_parser == ',' )
396 psz_last_shortcut = psz_parser + 1;
400 /* Check if the user wants to override the "strict" mode */
401 if( psz_last_shortcut )
403 if( !strcmp(psz_last_shortcut, "none") )
408 else if( !strcmp(psz_last_shortcut, "any") )
410 b_strict = VLC_FALSE;
416 /* Sort the modules and test them */
417 p_all = vlc_list_find( p_this, VLC_OBJECT_MODULE, FIND_ANYWHERE );
418 p_list = malloc( p_all->i_count * sizeof( module_list_t ) );
421 /* Parse the module list for capabilities and probe each of them */
422 for( i_which_module = 0; i_which_module < p_all->i_count; i_which_module++ )
424 int i_shortcut_bonus = 0;
426 p_module = (module_t *)p_all->p_values[i_which_module].p_object;
428 /* Test that this module can do what we need */
429 if( strcmp( p_module->psz_capability, psz_capability ) )
431 /* Don't recurse through the sub-modules because vlc_list_find()
432 * will list them anyway. */
436 /* Test if we have the required CPU */
437 if( (p_module->i_cpu & p_this->p_libvlc->i_cpu) != p_module->i_cpu )
442 /* If we required a shortcut, check this plugin provides it. */
443 if( i_shortcuts > 0 )
446 int i_dummy, i_short = i_shortcuts;
447 char *psz_name = psz_shortcuts;
449 /* Let's drop modules with a <= 0 score (unless they are
450 * explicitly requested) */
451 b_trash = p_module->i_score <= 0;
455 for( i_dummy = 0; p_module->pp_shortcuts[i_dummy]; i_dummy++ )
457 if( !strcasecmp( psz_name,
458 p_module->pp_shortcuts[i_dummy] ) )
462 i_shortcut_bonus = i_short * 10000;
467 if( i_shortcut_bonus )
469 /* We found it... remember ? */
473 /* Go to the next shortcut... This is so lame! */
482 /* If we are in "strict" mode and we couldn't
483 * find the module in the list of provided shortcuts,
484 * then kick the bastard out of here!!! */
485 if( i_short == 0 && b_strict )
495 /* If we didn't require a shortcut, trash <= 0 scored plugins */
496 else if( p_module->i_score <= 0 )
501 /* Special case: test if we requested a particular intf plugin */
502 if( !i_shortcuts && p_module->psz_program
503 && !strcmp( psz_capability, "interface" )
504 && !strcmp( p_module->psz_program,
505 p_this->p_vlc->psz_object_name ) )
509 /* Remove previous non-matching plugins */
516 /* This one doesn't match */
520 /* Store this new module */
521 p_list[ i_index ].p_module = p_module;
522 p_list[ i_index ].i_score = p_module->i_score + i_shortcut_bonus;
523 p_list[ i_index ].b_force = !!i_shortcut_bonus;
525 /* Add it to the modules-to-probe list */
528 p_list[ 0 ].p_next = NULL;
533 /* Ok, so at school you learned that quicksort is quick, and
534 * bubble sort sucks raw eggs. But that's when dealing with
535 * thousands of items. Here we have barely 50. */
536 module_list_t *p_newlist = p_first;
538 if( p_first->i_score < p_list[ i_index ].i_score )
540 p_list[ i_index ].p_next = p_first;
541 p_first = &p_list[ i_index ];
545 while( p_newlist->p_next != NULL &&
546 p_newlist->p_next->i_score >= p_list[ i_index ].i_score )
548 p_newlist = p_newlist->p_next;
551 p_list[ i_index ].p_next = p_newlist->p_next;
552 p_newlist->p_next = &p_list[ i_index ];
559 msg_Dbg( p_this, "probing %i candidate%s",
560 i_index, i_index == 1 ? "" : "s" );
562 /* Lock all candidate modules */
564 while( p_tmp != NULL )
566 vlc_object_yield( p_tmp->p_module );
567 p_tmp = p_tmp->p_next;
570 /* We can release the list, interesting modules were yielded */
571 vlc_list_release( p_all );
573 /* Parse the linked list and use the first successful module */
575 while( p_tmp != NULL )
577 #ifdef HAVE_DYNAMIC_PLUGINS
578 /* Make sure the module is loaded in mem */
579 module_t *p_module = p_tmp->p_module->b_submodule ?
580 (module_t *)p_tmp->p_module->p_parent : p_tmp->p_module;
581 if( !p_module->b_builtin && !p_module->b_loaded )
583 module_t *p_new_module =
584 AllocatePlugin( p_this, p_module->psz_filename );
587 CacheMerge( p_this, p_module, p_new_module );
588 vlc_object_attach( p_new_module, p_module );
589 DeleteModule( p_new_module );
594 p_this->b_force = p_tmp->b_force;
595 if( p_tmp->p_module->pf_activate
596 && p_tmp->p_module->pf_activate( p_this ) == VLC_SUCCESS )
601 vlc_object_release( p_tmp->p_module );
602 p_tmp = p_tmp->p_next;
605 /* Store the locked module value */
608 p_module = p_tmp->p_module;
609 p_tmp = p_tmp->p_next;
616 /* Unlock the remaining modules */
617 while( p_tmp != NULL )
619 vlc_object_release( p_tmp->p_module );
620 p_tmp = p_tmp->p_next;
624 p_this->b_force = b_force_backup;
626 if( p_module != NULL )
628 msg_Dbg( p_module, "using %s module \"%s\"",
629 psz_capability, p_module->psz_object_name );
631 else if( p_first == NULL )
633 if( !strcmp( psz_capability, "access_demux" ) )
635 msg_Warn( p_this, "no %s module matched \"%s\"",
636 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
640 msg_Err( p_this, "no %s module matched \"%s\"",
641 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
644 else if( psz_name != NULL && *psz_name )
646 msg_Warn( p_this, "no %s module matching \"%s\" could be loaded",
647 psz_capability, (psz_name && *psz_name) ? psz_name : "any" );
652 free( psz_shortcuts );
660 /* Don't forget that the module is still locked */
664 /*****************************************************************************
665 * module_Unneed: decrease the usage count of a module.
666 *****************************************************************************
667 * This function must be called by the thread that called module_Need, to
668 * decrease the reference count and allow for hiding of modules.
669 *****************************************************************************/
670 void __module_Unneed( vlc_object_t * p_this, module_t * p_module )
672 /* Use the close method */
673 if( p_module->pf_deactivate )
675 p_module->pf_deactivate( p_this );
678 msg_Dbg( p_module, "unlocking module \"%s\"", p_module->psz_object_name );
680 vlc_object_release( p_module );
685 /*****************************************************************************
686 * Following functions are local.
687 *****************************************************************************/
689 /*****************************************************************************
690 * AllocateAllPlugins: load all plugin modules we can find.
691 *****************************************************************************/
692 #ifdef HAVE_DYNAMIC_PLUGINS
693 static void AllocateAllPlugins( vlc_object_t *p_this )
695 /* Yes, there are two NULLs because we replace one with "plugin-path". */
696 #if defined( WIN32 ) || defined( UNDER_CE )
697 char *path[] = { "modules", "", "plugins", 0, 0 };
699 char *path[] = { "modules", PLUGIN_PATH, "plugins", 0, 0 };
702 char **ppsz_path = path;
705 /* If the user provided a plugin path, we add it to the list */
706 path[ sizeof(path)/sizeof(char*) - 2 ] =
707 config_GetPsz( p_this, "plugin-path" );
709 for( ; *ppsz_path != NULL ; ppsz_path++ )
711 if( !(*ppsz_path)[0] ) continue;
713 #if defined( SYS_BEOS ) || defined( SYS_DARWIN ) || defined( WIN32 )
715 /* Handle relative as well as absolute paths */
717 if( (*ppsz_path)[0] != '\\' && (*ppsz_path)[0] != '/' &&
718 (*ppsz_path)[1] != ':' )
720 if( (*ppsz_path)[0] != '/' )
723 int i_dirlen = strlen( *ppsz_path );
724 i_dirlen += strlen( p_this->p_libvlc->psz_vlcpath ) + 2;
726 psz_fullpath = malloc( i_dirlen );
727 if( psz_fullpath == NULL )
732 sprintf( psz_fullpath, "%s\\%s",
733 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
735 sprintf( psz_fullpath, "%s/%s",
736 p_this->p_libvlc->psz_vlcpath, *ppsz_path );
742 psz_fullpath = strdup( *ppsz_path );
745 msg_Dbg( p_this, "recursively browsing `%s'", psz_fullpath );
747 /* Don't go deeper than 5 subdirectories */
748 AllocatePluginDir( p_this, psz_fullpath, 5 );
750 free( psz_fullpath );
753 /* Free plugin-path */
754 if( path[ sizeof(path)/sizeof(char*) - 2 ] )
755 free( path[ sizeof(path)/sizeof(char*) - 2 ] );
756 path[ sizeof(path)/sizeof(char*) - 2 ] = NULL;
759 /*****************************************************************************
760 * AllocatePluginDir: recursively parse a directory to look for plugins
761 *****************************************************************************/
762 static void AllocatePluginDir( vlc_object_t *p_this, const char *psz_dir,
765 #if defined( UNDER_CE ) || defined( _MSC_VER )
767 wchar_t psz_wpath[MAX_PATH + 256];
768 wchar_t psz_wdir[MAX_PATH];
770 char psz_path[MAX_PATH + 256];
771 WIN32_FIND_DATA finddata;
777 struct dirent * file;
781 if( p_this->p_vlc->b_die || i_maxdepth < 0 )
786 #if defined( UNDER_CE ) || defined( _MSC_VER )
788 MultiByteToWideChar( CP_ACP, 0, psz_dir, -1, psz_wdir, MAX_PATH );
790 rc = GetFileAttributes( psz_wdir );
791 if( !(rc & FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
793 /* Parse all files in the directory */
794 swprintf( psz_wpath, L"%ls\\*", psz_wdir );
796 rc = GetFileAttributes( psz_dir );
797 if( !(rc & FILE_ATTRIBUTE_DIRECTORY) ) return; /* Not a directory */
800 /* Parse all files in the directory */
801 sprintf( psz_path, "%s\\*", psz_dir );
804 handle = FindFirstFile( psz_wpath, &finddata );
806 handle = FindFirstFile( psz_path, &finddata );
808 if( handle == INVALID_HANDLE_VALUE )
810 /* Empty directory */
814 /* Parse the directory and try to load all files it contains. */
818 unsigned int i_len = wcslen( finddata.cFileName );
819 swprintf( psz_wpath, L"%ls\\%ls", psz_wdir, finddata.cFileName );
820 sprintf( psz_path, "%s\\%ls", psz_dir, finddata.cFileName );
822 unsigned int i_len = strlen( finddata.cFileName );
823 sprintf( psz_path, "%s\\%s", psz_dir, finddata.cFileName );
826 /* Skip ".", ".." and anything starting with "." */
827 if( !*finddata.cFileName || *finddata.cFileName == '.' )
829 if( !FindNextFile( handle, &finddata ) ) break;
834 if( GetFileAttributes( psz_wpath ) & FILE_ATTRIBUTE_DIRECTORY )
836 if( GetFileAttributes( psz_path ) & FILE_ATTRIBUTE_DIRECTORY )
839 AllocatePluginDir( p_this, psz_path, i_maxdepth - 1 );
841 else if( i_len > strlen( LIBEXT )
842 /* We only load files ending with LIBEXT */
843 && !strncasecmp( psz_path + strlen( psz_path)
845 LIBEXT, strlen( LIBEXT ) ) )
847 WIN32_FILE_ATTRIBUTE_DATA attrbuf;
848 int64_t i_time = 0, i_size = 0;
851 if( GetFileAttributesEx( psz_wpath, GetFileExInfoStandard,
854 if( GetFileAttributesEx( psz_path, GetFileExInfoStandard,
858 i_time = attrbuf.ftLastWriteTime.dwHighDateTime;
860 i_time |= attrbuf.ftLastWriteTime.dwLowDateTime;
861 i_size = attrbuf.nFileSizeHigh;
863 i_size |= attrbuf.nFileSizeLow;
867 AllocatePluginFile( p_this, psz_file, i_time, i_size );
870 while( !p_this->p_vlc->b_die && FindNextFile( handle, &finddata ) );
872 /* Close the directory */
876 dir = opendir( psz_dir );
882 i_dirlen = strlen( psz_dir );
884 /* Parse the directory and try to load all files it contains. */
885 while( !p_this->p_vlc->b_die && (file = readdir( dir )) )
891 /* Skip ".", ".." and anything starting with "." */
892 if( !*file->d_name || *file->d_name == '.' )
897 i_len = strlen( file->d_name );
898 psz_file = malloc( i_dirlen + 1 + i_len + 1 );
900 sprintf( psz_file, "%s\\%s", psz_dir, file->d_name );
902 sprintf( psz_file, "%s/%s", psz_dir, file->d_name );
905 i_stat = stat( psz_file, &statbuf );
906 if( !i_stat && statbuf.st_mode & S_IFDIR )
908 AllocatePluginDir( p_this, psz_file, i_maxdepth - 1 );
910 else if( i_len > strlen( LIBEXT )
911 /* We only load files ending with LIBEXT */
912 && !strncasecmp( file->d_name + i_len - strlen( LIBEXT ),
913 LIBEXT, strlen( LIBEXT ) ) )
915 int64_t i_time = 0, i_size = 0;
919 i_time = statbuf.st_mtime;
920 i_size = statbuf.st_size;
923 AllocatePluginFile( p_this, psz_file, i_time, i_size );
929 /* Close the directory */
935 /*****************************************************************************
936 * AllocatePluginFile: load a module into memory and initialize it.
937 *****************************************************************************
938 * This function loads a dynamically loadable module and allocates a structure
939 * for its information data. The module can then be handled by module_Need
940 * and module_Unneed. It can be removed by DeleteModule.
941 *****************************************************************************/
942 static int AllocatePluginFile( vlc_object_t * p_this, char * psz_file,
943 int64_t i_file_time, int64_t i_file_size )
946 module_cache_t *p_cache_entry = NULL;
949 * Check our plugins cache first then load plugin if needed
952 CacheFind( p_this, psz_file, i_file_time, i_file_size );
956 p_module = AllocatePlugin( p_this, psz_file );
960 /* If junk dll, don't try to load it */
961 if( p_cache_entry->b_junk )
967 module_config_t *p_item;
969 p_module = p_cache_entry->p_module;
970 p_module->b_loaded = VLC_FALSE;
972 /* For now we force loading if the module's config contains
973 * callbacks or actions.
974 * Could be optimized by adding an API call.*/
975 for( p_item = p_module->p_config;
976 p_item->i_type != CONFIG_HINT_END; p_item++ )
978 if( p_item->pf_callback || p_item->i_action )
979 p_module = AllocatePlugin( p_this, psz_file );
986 /* Everything worked fine !
987 * The module is ready to be added to the list. */
988 p_module->b_builtin = VLC_FALSE;
990 /* msg_Dbg( p_this, "plugin \"%s\", %s",
991 p_module->psz_object_name, p_module->psz_longname ); */
993 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
996 if( !p_this->p_libvlc->p_module_bank->b_cache ) return 0;
998 /* Add entry to cache */
999 #define p_bank p_this->p_libvlc->p_module_bank
1001 realloc( p_bank->pp_cache, (p_bank->i_cache + 1) * sizeof(void *) );
1002 p_bank->pp_cache[p_bank->i_cache] = malloc( sizeof(module_cache_t) );
1003 p_bank->pp_cache[p_bank->i_cache]->psz_file = strdup( psz_file );
1004 p_bank->pp_cache[p_bank->i_cache]->i_time = i_file_time;
1005 p_bank->pp_cache[p_bank->i_cache]->i_size = i_file_size;
1006 p_bank->pp_cache[p_bank->i_cache]->b_junk = p_module ? 0 : 1;
1007 p_bank->pp_cache[p_bank->i_cache]->p_module = p_module;
1010 return p_module ? 0 : -1;
1013 /*****************************************************************************
1014 * AllocatePlugin: load a module into memory and initialize it.
1015 *****************************************************************************
1016 * This function loads a dynamically loadable module and allocates a structure
1017 * for its information data. The module can then be handled by module_Need
1018 * and module_Unneed. It can be removed by DeleteModule.
1019 *****************************************************************************/
1020 static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
1022 module_t * p_module;
1023 module_handle_t handle;
1025 if( LoadModule( p_this, psz_file, &handle ) ) return NULL;
1027 /* Now that we have successfully loaded the module, we can
1028 * allocate a structure for it */
1029 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1030 if( p_module == NULL )
1032 msg_Err( p_this, "out of memory" );
1033 CloseModule( handle );
1037 /* We need to fill these since they may be needed by CallEntry() */
1038 p_module->psz_filename = psz_file;
1039 p_module->handle = handle;
1040 p_module->p_symbols = &p_this->p_libvlc->p_module_bank->symbols;
1041 p_module->b_loaded = VLC_TRUE;
1043 /* Initialize the module: fill p_module, default config */
1044 if( CallEntry( p_module ) != 0 )
1046 /* We couldn't call module_init() */
1047 vlc_object_destroy( p_module );
1048 CloseModule( handle );
1052 DupModule( p_module );
1053 p_module->psz_filename = strdup( p_module->psz_filename );
1055 /* Everything worked fine ! The module is ready to be added to the list. */
1056 p_module->b_builtin = VLC_FALSE;
1061 /*****************************************************************************
1062 * DupModule: make a plugin module standalone.
1063 *****************************************************************************
1064 * This function duplicates all strings in the module, so that the dynamic
1065 * object can be unloaded. It acts recursively on submodules.
1066 *****************************************************************************/
1067 static void DupModule( module_t *p_module )
1072 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1074 *pp_shortcut = strdup( *pp_shortcut );
1077 /* We strdup() these entries so that they are still valid when the
1078 * module is unloaded. */
1079 p_module->psz_object_name = strdup( p_module->psz_object_name );
1080 p_module->psz_capability = strdup( p_module->psz_capability );
1081 p_module->psz_shortname = strdup( p_module->psz_shortname );
1082 p_module->psz_longname = strdup( p_module->psz_longname );
1084 if( p_module->psz_program != NULL )
1086 p_module->psz_program = strdup( p_module->psz_program );
1089 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1091 DupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1095 /*****************************************************************************
1096 * UndupModule: free a duplicated module.
1097 *****************************************************************************
1098 * This function frees the allocations done in DupModule().
1099 *****************************************************************************/
1100 static void UndupModule( module_t *p_module )
1105 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
1107 UndupModule( (module_t*)p_module->pp_children[ i_submodule ] );
1110 for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
1112 free( *pp_shortcut );
1115 free( p_module->psz_object_name );
1116 free( p_module->psz_capability );
1117 free( p_module->psz_shortname );
1118 free( p_module->psz_longname );
1120 if( p_module->psz_program != NULL )
1122 free( p_module->psz_program );
1126 #endif /* HAVE_DYNAMIC_PLUGINS */
1128 /*****************************************************************************
1129 * AllocateBuiltinModule: initialize a builtin module.
1130 *****************************************************************************
1131 * This function registers a builtin module and allocates a structure
1132 * for its information data. The module can then be handled by module_Need
1133 * and module_Unneed. It can be removed by DeleteModule.
1134 *****************************************************************************/
1135 static int AllocateBuiltinModule( vlc_object_t * p_this,
1136 int ( *pf_entry ) ( module_t * ) )
1138 module_t * p_module;
1140 /* Now that we have successfully loaded the module, we can
1141 * allocate a structure for it */
1142 p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1143 if( p_module == NULL )
1145 msg_Err( p_this, "out of memory" );
1149 /* Initialize the module : fill p_module->psz_object_name, etc. */
1150 if( pf_entry( p_module ) != 0 )
1152 /* With a well-written module we shouldn't have to print an
1153 * additional error message here, but just make sure. */
1154 msg_Err( p_this, "failed calling entry point in builtin module" );
1155 vlc_object_destroy( p_module );
1159 /* Everything worked fine ! The module is ready to be added to the list. */
1160 p_module->b_builtin = VLC_TRUE;
1162 /* msg_Dbg( p_this, "builtin \"%s\", %s",
1163 p_module->psz_object_name, p_module->psz_longname ); */
1165 vlc_object_attach( p_module, p_this->p_libvlc->p_module_bank );
1170 /*****************************************************************************
1171 * DeleteModule: delete a module and its structure.
1172 *****************************************************************************
1173 * This function can only be called if the module isn't being used.
1174 *****************************************************************************/
1175 static int DeleteModule( module_t * p_module )
1177 vlc_object_detach( p_module );
1179 /* We free the structures that we strdup()ed in Allocate*Module(). */
1180 #ifdef HAVE_DYNAMIC_PLUGINS
1181 if( !p_module->b_builtin )
1183 if( p_module->b_loaded && p_module->b_unloadable )
1185 CloseModule( p_module->handle );
1187 UndupModule( p_module );
1188 free( p_module->psz_filename );
1192 /* Free and detach the object's children */
1193 while( p_module->i_children )
1195 vlc_object_t *p_this = p_module->pp_children[0];
1196 vlc_object_detach( p_this );
1197 vlc_object_destroy( p_this );
1200 config_Free( p_module );
1201 vlc_object_destroy( p_module );
1206 #ifdef HAVE_DYNAMIC_PLUGINS
1207 /*****************************************************************************
1208 * CallEntry: call an entry point.
1209 *****************************************************************************
1210 * This function calls a symbol given its name and a module structure. The
1211 * symbol MUST refer to a function returning int and taking a module_t* as
1213 *****************************************************************************/
1214 static int CallEntry( module_t * p_module )
1216 static char *psz_name = "vlc_entry" MODULE_SUFFIX;
1217 int (* pf_symbol) ( module_t * p_module );
1219 /* Try to resolve the symbol */
1220 pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
1222 if( pf_symbol == NULL )
1224 #if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
1225 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
1226 psz_name, p_module->psz_filename );
1227 #elif defined(HAVE_DL_WINDOWS)
1228 char *psz_error = GetWindowsError();
1229 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1230 psz_name, p_module->psz_filename, psz_error );
1232 #elif defined(HAVE_DL_DLOPEN)
1233 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1234 psz_name, p_module->psz_filename, dlerror() );
1235 #elif defined(HAVE_DL_SHL_LOAD)
1236 msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
1237 psz_name, p_module->psz_filename, strerror(errno) );
1239 # error "Something is wrong in modules.c"
1244 /* We can now try to call the symbol */
1245 if( pf_symbol( p_module ) != 0 )
1247 /* With a well-written module we shouldn't have to print an
1248 * additional error message here, but just make sure. */
1249 msg_Err( p_module, "failed calling symbol \"%s\" in file `%s'",
1250 psz_name, p_module->psz_filename );
1254 /* Everything worked fine, we can return */
1258 /*****************************************************************************
1259 * LoadModule: loads a dynamic library
1260 *****************************************************************************
1261 * This function loads a dynamically linked library using a system dependant
1262 * method. Will return 0 on success as well as the module handle.
1263 *****************************************************************************/
1264 static int LoadModule( vlc_object_t *p_this, char *psz_file,
1265 module_handle_t *p_handle )
1267 module_handle_t handle;
1269 #if defined(HAVE_DL_DYLD)
1270 NSObjectFileImage image;
1271 NSObjectFileImageReturnCode ret;
1273 ret = NSCreateObjectFileImageFromFile( psz_file, &image );
1275 if( ret != NSObjectFileImageSuccess )
1277 msg_Warn( p_this, "cannot create image from `%s'", psz_file );
1281 /* Open the dynamic module */
1282 handle = NSLinkModule( image, psz_file,
1283 NSLINKMODULE_OPTION_RETURN_ON_ERROR );
1287 NSLinkEditErrors errors;
1288 const char *psz_file, *psz_err;
1290 NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
1291 msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
1292 NSDestroyObjectFileImage( image );
1296 /* Destroy our image, we won't need it */
1297 NSDestroyObjectFileImage( image );
1299 #elif defined(HAVE_DL_BEOS)
1300 handle = load_add_on( psz_file );
1303 msg_Warn( p_this, "cannot load module `%s'", psz_file );
1307 #elif defined(HAVE_DL_WINDOWS)
1310 wchar_t psz_wfile[MAX_PATH];
1311 MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
1312 handle = LoadLibrary( psz_wfile );
1315 handle = LoadLibrary( psz_file );
1317 if( handle == NULL )
1319 char *psz_err = GetWindowsError();
1320 msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
1325 #elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
1326 /* static is OK, we are called atomically */
1327 static vlc_bool_t b_kde = VLC_FALSE;
1329 # if defined(SYS_LINUX)
1330 /* XXX HACK #1 - we should NOT open modules with RTLD_GLOBAL, or we
1331 * are going to get namespace collisions when two modules have common
1332 * public symbols, but ALSA is being a pest here. */
1333 if( strstr( psz_file, "alsa_plugin" ) )
1335 handle = dlopen( psz_file, RTLD_NOW | RTLD_GLOBAL );
1336 if( handle == NULL )
1338 msg_Warn( p_this, "cannot load module `%s' (%s)",
1339 psz_file, dlerror() );
1344 /* XXX HACK #2 - the ugly KDE workaround. It seems that libkdewhatever
1345 * causes dlopen() to segfault if libstdc++ is not loaded in the caller,
1346 * so we just load libstdc++. Bwahahaha! ph34r! -- Sam. */
1347 /* Update: FYI, this is Debian bug #180505, and seems to be fixed. */
1348 if( !b_kde && !strstr( psz_file, "kde" ) )
1350 dlopen( "libstdc++.so.6", RTLD_NOW )
1351 || dlopen( "libstdc++.so.5", RTLD_NOW )
1352 || dlopen( "libstdc++.so.4", RTLD_NOW )
1353 || dlopen( "libstdc++.so.3", RTLD_NOW );
1357 handle = dlopen( psz_file, RTLD_NOW );
1358 if( handle == NULL )
1360 msg_Warn( p_this, "cannot load module `%s' (%s)",
1361 psz_file, dlerror() );
1365 #elif defined(HAVE_DL_DLOPEN)
1366 # if defined(DL_LAZY)
1367 handle = dlopen( psz_file, DL_LAZY );
1369 handle = dlopen( psz_file, 0 );
1371 if( handle == NULL )
1373 msg_Warn( p_this, "cannot load module `%s' (%s)",
1374 psz_file, dlerror() );
1378 #elif defined(HAVE_DL_SHL_LOAD)
1379 handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
1380 if( handle == NULL )
1382 msg_Warn( p_this, "cannot load module `%s' (%s)",
1383 psz_file, strerror(errno) );
1388 # error "Something is wrong in modules.c"
1396 /*****************************************************************************
1397 * CloseModule: unload a dynamic library
1398 *****************************************************************************
1399 * This function unloads a previously opened dynamically linked library
1400 * using a system dependant method. No return value is taken in consideration,
1401 * since some libraries sometimes refuse to close properly.
1402 *****************************************************************************/
1403 static void CloseModule( module_handle_t handle )
1405 #if defined(HAVE_DL_DYLD)
1406 NSUnLinkModule( handle, FALSE );
1408 #elif defined(HAVE_DL_BEOS)
1409 unload_add_on( handle );
1411 #elif defined(HAVE_DL_WINDOWS)
1412 FreeLibrary( handle );
1414 #elif defined(HAVE_DL_DLOPEN)
1417 #elif defined(HAVE_DL_SHL_LOAD)
1418 shl_unload( handle );
1424 /*****************************************************************************
1425 * GetSymbol: get a symbol from a dynamic library
1426 *****************************************************************************
1427 * This function queries a loaded library for a symbol specified in a
1428 * string, and returns a pointer to it. We don't check for dlerror() or
1429 * similar functions, since we want a non-NULL symbol anyway.
1430 *****************************************************************************/
1431 static void * _module_getsymbol( module_handle_t, const char * );
1433 static void * GetSymbol( module_handle_t handle, const char * psz_function )
1435 void * p_symbol = _module_getsymbol( handle, psz_function );
1437 /* MacOS X dl library expects symbols to begin with "_". So do
1438 * some other operating systems. That's really lame, but hey, what
1440 if( p_symbol == NULL )
1442 char *psz_call = malloc( strlen( psz_function ) + 2 );
1444 strcpy( psz_call + 1, psz_function );
1445 psz_call[ 0 ] = '_';
1446 p_symbol = _module_getsymbol( handle, psz_call );
1453 static void * _module_getsymbol( module_handle_t handle,
1454 const char * psz_function )
1456 #if defined(HAVE_DL_DYLD)
1457 NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
1458 return NSAddressOfSymbol( sym );
1460 #elif defined(HAVE_DL_BEOS)
1462 if( B_OK == get_image_symbol( handle, psz_function,
1463 B_SYMBOL_TYPE_TEXT, &p_symbol ) )
1472 #elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
1473 wchar_t psz_real[256];
1474 MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
1476 return (void *)GetProcAddress( handle, psz_real );
1478 #elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
1479 return (void *)GetProcAddress( handle, (char *)psz_function );
1481 #elif defined(HAVE_DL_DLOPEN)
1482 return dlsym( handle, psz_function );
1484 #elif defined(HAVE_DL_SHL_LOAD)
1486 shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
1492 #if defined(HAVE_DL_WINDOWS)
1493 static char * GetWindowsError( void )
1495 #if defined(UNDER_CE)
1496 wchar_t psz_tmp[256];
1497 char * psz_buffer = malloc( 256 );
1499 char * psz_tmp = malloc( 256 );
1501 int i = 0, i_error = GetLastError();
1503 FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
1504 NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
1505 (LPTSTR) psz_tmp, 256, NULL );
1507 /* Go to the end of the string */
1508 #if defined(UNDER_CE)
1509 while( psz_tmp[i] && psz_tmp[i] != L'\r' && psz_tmp[i] != L'\n' )
1511 while( psz_tmp[i] && psz_tmp[i] != '\r' && psz_tmp[i] != '\n' )
1519 #if defined(UNDER_CE)
1520 swprintf( psz_tmp + i, L" (error %i)", i_error );
1521 psz_tmp[ 255 ] = L'\0';
1523 snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
1524 psz_tmp[ 255 ] = '\0';
1528 #if defined(UNDER_CE)
1529 WideCharToMultiByte( CP_ACP, WC_DEFAULTCHAR, psz_tmp, -1,
1530 psz_buffer, 256, NULL, NULL );
1536 #endif /* HAVE_DL_WINDOWS */
1538 /*****************************************************************************
1539 * LoadPluginsCache: loads the plugins cache file
1540 *****************************************************************************
1541 * This function will load the plugin cache if present and valid. This cache
1542 * will in turn be queried by AllocateAllPlugins() to see if it needs to
1543 * actually load the dynamically loadable module.
1544 * This allows us to only fully load plugins when they are actually used.
1545 *****************************************************************************/
1546 static void CacheLoad( vlc_object_t *p_this )
1548 char *psz_filename, *psz_homedir;
1550 int i, j, i_size, i_read;
1551 char p_cachestring[sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE)];
1552 char p_cachelang[6], p_lang[6];
1554 module_cache_t **pp_cache = 0;
1555 int32_t i_file_size, i_marker;
1557 psz_homedir = p_this->p_vlc->psz_homedir;
1560 msg_Err( p_this, "psz_homedir is null" );
1564 i_size = asprintf( &psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1565 PLUGINSCACHE_DIR, CacheName() );
1568 msg_Err( p_this, "out of memory" );
1572 if( p_this->p_libvlc->p_module_bank->b_cache_delete )
1574 #if !defined( UNDER_CE )
1575 unlink( psz_filename );
1577 wchar_t psz_wf[MAX_PATH];
1578 MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
1579 DeleteFile( psz_wf );
1581 msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
1585 msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
1587 file = fopen( psz_filename, "rb" );
1590 msg_Warn( p_this, "could not open plugins cache file %s for reading",
1592 free( psz_filename );
1595 free( psz_filename );
1597 /* Check the file size */
1598 i_read = fread( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1599 if( i_read != sizeof(i_file_size) )
1601 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1607 fseek( file, 0, SEEK_END );
1608 if( ftell( file ) != i_file_size )
1610 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1611 "(corrupted size)" );
1615 fseek( file, sizeof(i_file_size), SEEK_SET );
1617 /* Check the file is a plugins cache */
1618 i_size = sizeof(PLUGINSCACHE_DIR COPYRIGHT_MESSAGE) - 1;
1619 i_read = fread( p_cachestring, sizeof(char), i_size, file );
1620 if( i_read != i_size ||
1621 memcmp( p_cachestring, PLUGINSCACHE_DIR COPYRIGHT_MESSAGE, i_size ) )
1623 msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
1628 /* Check the language hasn't changed */
1629 sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
1630 i_read = fread( p_cachelang, sizeof(char), i_size, file );
1631 if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
1633 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1634 "(language changed)" );
1639 /* Check header marker */
1640 i_read = fread( &i_marker, sizeof(char), sizeof(i_marker), file );
1641 if( i_read != sizeof(i_marker) ||
1642 i_marker != ftell( file ) - (int)sizeof(i_marker) )
1644 msg_Warn( p_this, "This doesn't look like a valid plugins cache "
1645 "(corrupted header)" );
1650 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1651 fread( &i_cache, sizeof(char), sizeof(i_cache), file );
1652 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache =
1653 malloc( i_cache * sizeof(void *) );
1655 #define LOAD_IMMEDIATE(a) \
1656 if( fread( &a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
1657 #define LOAD_STRING(a) \
1658 { if( fread( &i_size, sizeof(char), sizeof(i_size), file ) \
1659 != sizeof(i_size) ) goto error; \
1661 a = malloc( i_size ); \
1662 if( fread( a, sizeof(char), i_size, file ) != (size_t)i_size ) \
1668 for( i = 0; i < i_cache; i++ )
1673 pp_cache[i] = malloc( sizeof(module_cache_t) );
1674 p_this->p_libvlc->p_module_bank->i_loaded_cache++;
1676 /* Load common info */
1677 LOAD_STRING( pp_cache[i]->psz_file );
1678 LOAD_IMMEDIATE( pp_cache[i]->i_time );
1679 LOAD_IMMEDIATE( pp_cache[i]->i_size );
1680 LOAD_IMMEDIATE( pp_cache[i]->b_junk );
1682 if( pp_cache[i]->b_junk ) continue;
1684 pp_cache[i]->p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
1686 /* Load additional infos */
1687 LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
1688 LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
1689 LOAD_STRING( pp_cache[i]->p_module->psz_longname );
1690 LOAD_STRING( pp_cache[i]->p_module->psz_program );
1691 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1693 LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
1695 LOAD_STRING( pp_cache[i]->p_module->psz_capability );
1696 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
1697 LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
1698 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
1699 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
1700 LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
1703 if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
1706 LOAD_STRING( pp_cache[i]->p_module->psz_filename );
1708 LOAD_IMMEDIATE( i_submodules );
1710 while( i_submodules-- )
1712 module_t *p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE);
1713 vlc_object_attach( p_module, pp_cache[i]->p_module );
1714 p_module->b_submodule = VLC_TRUE;
1716 LOAD_STRING( p_module->psz_object_name );
1717 LOAD_STRING( p_module->psz_shortname );
1718 LOAD_STRING( p_module->psz_longname );
1719 LOAD_STRING( p_module->psz_program );
1720 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1722 LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
1724 LOAD_STRING( p_module->psz_capability );
1725 LOAD_IMMEDIATE( p_module->i_score );
1726 LOAD_IMMEDIATE( p_module->i_cpu );
1727 LOAD_IMMEDIATE( p_module->b_unloadable );
1728 LOAD_IMMEDIATE( p_module->b_reentrant );
1737 msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
1740 p_this->p_libvlc->p_module_bank->i_loaded_cache = 0;
1746 int CacheLoadConfig( module_t *p_module, FILE *file )
1751 /* Calculate the structure length */
1752 LOAD_IMMEDIATE( p_module->i_config_items );
1753 LOAD_IMMEDIATE( p_module->i_bool_items );
1755 LOAD_IMMEDIATE( i_lines );
1757 /* Allocate memory */
1758 p_module->p_config =
1759 (module_config_t *)malloc( sizeof(module_config_t) * (i_lines + 1));
1760 if( p_module->p_config == NULL )
1762 msg_Err( p_module, "config error: can't duplicate p_config" );
1766 /* Do the duplication job */
1767 for( i = 0; i < i_lines ; i++ )
1769 LOAD_IMMEDIATE( p_module->p_config[i] );
1771 LOAD_STRING( p_module->p_config[i].psz_type );
1772 LOAD_STRING( p_module->p_config[i].psz_name );
1773 LOAD_STRING( p_module->p_config[i].psz_text );
1774 LOAD_STRING( p_module->p_config[i].psz_longtext );
1775 LOAD_STRING( p_module->p_config[i].psz_value_orig );
1777 p_module->p_config[i].psz_value =
1778 p_module->p_config[i].psz_value_orig ?
1779 strdup( p_module->p_config[i].psz_value_orig ) : 0;
1780 p_module->p_config[i].i_value = p_module->p_config[i].i_value_orig;
1781 p_module->p_config[i].f_value = p_module->p_config[i].f_value_orig;
1783 p_module->p_config[i].p_lock = &p_module->object_lock;
1785 if( p_module->p_config[i].i_list )
1787 if( p_module->p_config[i].ppsz_list )
1789 p_module->p_config[i].ppsz_list =
1790 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1791 if( p_module->p_config[i].ppsz_list )
1793 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1794 LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
1795 p_module->p_config[i].ppsz_list[j] = NULL;
1798 if( p_module->p_config[i].ppsz_list_text )
1800 p_module->p_config[i].ppsz_list_text =
1801 malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
1802 if( p_module->p_config[i].ppsz_list_text )
1804 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1805 LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
1806 p_module->p_config[i].ppsz_list_text[j] = NULL;
1809 if( p_module->p_config[i].pi_list )
1811 p_module->p_config[i].pi_list =
1812 malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
1813 if( p_module->p_config[i].pi_list )
1815 for( j = 0; j < p_module->p_config[i].i_list; j++ )
1816 LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
1821 if( p_module->p_config[i].i_action )
1823 p_module->p_config[i].ppf_action =
1824 malloc( p_module->p_config[i].i_action * sizeof(void *) );
1825 p_module->p_config[i].ppsz_action_text =
1826 malloc( p_module->p_config[i].i_action * sizeof(char *) );
1828 for( j = 0; j < p_module->p_config[i].i_action; j++ )
1830 p_module->p_config[i].ppf_action[j] = 0;
1831 LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
1835 LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
1838 p_module->p_config[i].i_type = CONFIG_HINT_END;
1844 return VLC_EGENERIC;
1847 /*****************************************************************************
1848 * SavePluginsCache: saves the plugins cache to a file
1849 *****************************************************************************/
1850 static void CacheSave( vlc_object_t *p_this )
1852 static char const psz_tag[] =
1853 "Signature: 8a477f597d28d172789f06886806bc55\r\n"
1854 "# This file is a cache directory tag created by VLC.\r\n"
1855 "# For information about cache directory tags, see:\r\n"
1856 "# http://www.brynosaurus.com/cachedir/\r\n";
1858 char *psz_filename, *psz_homedir;
1861 module_cache_t **pp_cache;
1862 int32_t i_file_size = 0;
1864 psz_homedir = p_this->p_vlc->psz_homedir;
1867 msg_Err( p_this, "psz_homedir is null" );
1871 (char *)malloc( sizeof("/" CONFIG_DIR "/" PLUGINSCACHE_DIR "/" ) +
1872 strlen(psz_homedir) + strlen(CacheName()) );
1876 msg_Err( p_this, "out of memory" );
1880 sprintf( psz_filename, "%s/%s", psz_homedir, CONFIG_DIR );
1882 config_CreateDir( p_this, psz_filename );
1884 strcat( psz_filename, "/" PLUGINSCACHE_DIR );
1886 config_CreateDir( p_this, psz_filename );
1888 strcat( psz_filename, "/CACHEDIR.TAG" );
1890 file = fopen( psz_filename, "wb" );
1893 fwrite( psz_tag, 1, strlen(psz_tag), file );
1897 sprintf( psz_filename, "%s/%s/%s/%s", psz_homedir, CONFIG_DIR,
1898 PLUGINSCACHE_DIR, CacheName() );
1900 msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
1902 file = fopen( psz_filename, "wb" );
1905 msg_Warn( p_this, "could not open plugins cache file %s for writing",
1907 free( psz_filename );
1910 free( psz_filename );
1912 /* Empty space for file size */
1913 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1915 /* Contains version number */
1916 fprintf( file, "%s", PLUGINSCACHE_DIR COPYRIGHT_MESSAGE );
1919 fprintf( file, "%5.5s", _("C") );
1922 i_file_size = ftell( file );
1923 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
1925 i_cache = p_this->p_libvlc->p_module_bank->i_cache;
1926 pp_cache = p_this->p_libvlc->p_module_bank->pp_cache;
1928 fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
1930 #define SAVE_IMMEDIATE(a) \
1931 fwrite( &a, sizeof(char), sizeof(a), file )
1932 #define SAVE_STRING(a) \
1933 { i_size = a ? strlen( a ) + 1 : 0; \
1934 fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
1935 if( a ) fwrite( a, sizeof(char), i_size, file ); \
1938 for( i = 0; i < i_cache; i++ )
1941 int32_t i_submodule;
1943 /* Save common info */
1944 SAVE_STRING( pp_cache[i]->psz_file );
1945 SAVE_IMMEDIATE( pp_cache[i]->i_time );
1946 SAVE_IMMEDIATE( pp_cache[i]->i_size );
1947 SAVE_IMMEDIATE( pp_cache[i]->b_junk );
1949 if( pp_cache[i]->b_junk ) continue;
1951 /* Save additional infos */
1952 SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
1953 SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
1954 SAVE_STRING( pp_cache[i]->p_module->psz_longname );
1955 SAVE_STRING( pp_cache[i]->p_module->psz_program );
1956 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1958 SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
1960 SAVE_STRING( pp_cache[i]->p_module->psz_capability );
1961 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
1962 SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
1963 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
1964 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
1965 SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
1968 CacheSaveConfig( pp_cache[i]->p_module, file );
1970 SAVE_STRING( pp_cache[i]->p_module->psz_filename );
1972 i_submodule = pp_cache[i]->p_module->i_children;
1973 SAVE_IMMEDIATE( i_submodule );
1974 for( i_submodule = 0; i_submodule < pp_cache[i]->p_module->i_children;
1977 module_t *p_module =
1978 (module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
1980 SAVE_STRING( p_module->psz_object_name );
1981 SAVE_STRING( p_module->psz_shortname );
1982 SAVE_STRING( p_module->psz_longname );
1983 SAVE_STRING( p_module->psz_program );
1984 for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
1986 SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
1988 SAVE_STRING( p_module->psz_capability );
1989 SAVE_IMMEDIATE( p_module->i_score );
1990 SAVE_IMMEDIATE( p_module->i_cpu );
1991 SAVE_IMMEDIATE( p_module->b_unloadable );
1992 SAVE_IMMEDIATE( p_module->b_reentrant );
1996 /* Fill-up file size */
1997 i_file_size = ftell( file );
1998 fseek( file, 0, SEEK_SET );
1999 fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
2006 void CacheSaveConfig( module_t *p_module, FILE *file )
2008 int i, j, i_lines = 0;
2009 module_config_t *p_item;
2012 SAVE_IMMEDIATE( p_module->i_config_items );
2013 SAVE_IMMEDIATE( p_module->i_bool_items );
2015 for( p_item = p_module->p_config; p_item->i_type != CONFIG_HINT_END;
2016 p_item++ ) i_lines++;
2018 SAVE_IMMEDIATE( i_lines );
2020 for( i = 0; i < i_lines ; i++ )
2022 SAVE_IMMEDIATE( p_module->p_config[i] );
2024 SAVE_STRING( p_module->p_config[i].psz_type );
2025 SAVE_STRING( p_module->p_config[i].psz_name );
2026 SAVE_STRING( p_module->p_config[i].psz_text );
2027 SAVE_STRING( p_module->p_config[i].psz_longtext );
2028 SAVE_STRING( p_module->p_config[i].psz_value_orig );
2030 if( p_module->p_config[i].i_list )
2032 if( p_module->p_config[i].ppsz_list )
2034 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2035 SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
2038 if( p_module->p_config[i].ppsz_list_text )
2040 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2041 SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
2043 if( p_module->p_config[i].pi_list )
2045 for( j = 0; j < p_module->p_config[i].i_list; j++ )
2046 SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
2050 for( j = 0; j < p_module->p_config[i].i_action; j++ )
2051 SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
2053 SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
2057 /*****************************************************************************
2058 * CacheName: Return the cache file name for this platform.
2059 *****************************************************************************/
2060 static char *CacheName( void )
2062 static char psz_cachename[32];
2063 static vlc_bool_t b_initialised = VLC_FALSE;
2065 if( !b_initialised )
2067 /* Code int size, pointer size and endianness in the filename */
2068 int32_t x = 0xbe00001e;
2069 sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", sizeof(int),
2070 sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
2071 b_initialised = VLC_TRUE;
2074 return psz_cachename;
2077 /*****************************************************************************
2078 * CacheMerge: Merge a cache module descriptor with a full module descriptor.
2079 *****************************************************************************/
2080 static void CacheMerge( vlc_object_t *p_this, module_t *p_cache,
2081 module_t *p_module )
2085 p_cache->pf_activate = p_module->pf_activate;
2086 p_cache->pf_deactivate = p_module->pf_deactivate;
2087 p_cache->p_symbols = p_module->p_symbols;
2088 p_cache->handle = p_module->handle;
2090 for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
2092 module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
2093 module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
2094 p_cchild->pf_activate = p_child->pf_activate;
2095 p_cchild->pf_deactivate = p_child->pf_deactivate;
2096 p_cchild->p_symbols = p_child->p_symbols;
2099 p_cache->b_loaded = VLC_TRUE;
2100 p_module->b_loaded = VLC_FALSE;
2103 /*****************************************************************************
2104 * FindPluginCache: finds the cache entry corresponding to a file
2105 *****************************************************************************/
2106 static module_cache_t *CacheFind( vlc_object_t *p_this, char *psz_file,
2107 int64_t i_time, int64_t i_size )
2109 module_cache_t **pp_cache;
2112 pp_cache = p_this->p_libvlc->p_module_bank->pp_loaded_cache;
2113 i_cache = p_this->p_libvlc->p_module_bank->i_loaded_cache;
2115 for( i = 0; i < i_cache; i++ )
2117 if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
2118 pp_cache[i]->i_time == i_time &&
2119 pp_cache[i]->i_size == i_size ) return pp_cache[i];
2125 #endif /* HAVE_DYNAMIC_PLUGINS */