/*****************************************************************************
- * modules.c : Built-in and dynamic modules management functions
+ * modules.c : Builtin and plugin modules management functions
*****************************************************************************
* Copyright (C) 2001 VideoLAN
+ * $Id: modules.c,v 1.63 2002/06/01 12:32:01 sam Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Ethan C. Baldridge <BaldridgeE@cadmus.com>
+ * Hans-Peter Jansen <hpj@urpla.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
-#include "defs.h"
-#include "config.h"
+/* Some faulty libcs have a broken struct dirent when _FILE_OFFSET_BITS
+ * is set to 64. Don't try to be cleverer. */
+#ifdef _FILE_OFFSET_BITS
+#undef _FILE_OFFSET_BITS
+#endif
#include <stdlib.h> /* free(), strtol() */
#include <stdio.h> /* sprintf() */
#include <string.h> /* strdup() */
+
+#include <vlc/vlc.h>
+
#include <dirent.h>
#if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
-#include <dlfcn.h> /* dlopen(), dlsym(), dlclose() */
-
+# include <dlfcn.h> /* dlopen(), dlsym(), dlclose() */
+# define HAVE_DYNAMIC_PLUGINS
#elif defined(HAVE_IMAGE_H) /* BeOS */
-#include <image.h>
-
+# include <image.h>
+# define HAVE_DYNAMIC_PLUGINS
+#elif defined(WIN32)
+# define HAVE_DYNAMIC_PLUGINS
#else
-/* FIXME: this isn't supposed to be an error */
-#error no dynamic plugins available on your system !
+# undef HAVE_DYNAMIC_PLUGINS
#endif
-#ifdef SYS_BEOS
-#include "beos_specific.h"
-#endif
-#include "common.h"
-#include "threads.h"
+#include "netutils.h"
-#include "intf_msg.h"
-#include "modules.h"
-#include "modules_core.h"
+#include "interface.h"
+#include "playlist.h"
+#include "intf_eject.h"
-/* Local prototypes */
-static int AllocateDynModule( module_bank_t * p_bank, char * psz_filename );
-static int HideModule( module_t * p_module );
-static int FreeModule( module_bank_t * p_bank, module_t * p_module );
-static int LockModule( module_t * p_module );
-static int UnlockModule( module_t * p_module );
-static int CallSymbol( module_t * p_module, char * psz_name );
+#include "stream_control.h"
+#include "input_ext-intf.h"
+#include "input_ext-dec.h"
+#include "input_ext-plugins.h"
+
+#include "video.h"
+#include "video_output.h"
+
+#include "audio_output.h"
+
+#include "iso_lang.h"
+
+#ifdef HAVE_DYNAMIC_PLUGINS
+# include "modules_plugin.h"
+#endif
+
+#if !defined( _MSC_VER )
+# include "modules_builtin.h"
+#else
+# include "modules_builtin_msvc.h"
+#endif
/*****************************************************************************
- * module_CreateBank: create the module bank.
- *****************************************************************************
- * This function creates a module bank structure.
+ * Static variables
*****************************************************************************/
-module_bank_t * module_CreateBank( void )
-{
- module_bank_t * p_bank;
+DECLARE_MODULE_CAPABILITY_TABLE;
- p_bank = malloc( sizeof( module_bank_t ) );
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+#ifdef HAVE_DYNAMIC_PLUGINS
+static void AllocateAllPlugins ( vlc_object_t * );
+static int AllocatePluginModule ( vlc_object_t *, char * );
+#endif
+static int AllocateBuiltinModule( vlc_object_t *,
+ int ( * ) ( module_t * ),
+ int ( * ) ( module_t * ),
+ int ( * ) ( module_t * ) );
+static int DeleteModule ( module_t * );
+static int LockModule ( module_t * );
+static int UnlockModule ( module_t * );
+#ifdef HAVE_DYNAMIC_PLUGINS
+static int HideModule ( module_t * );
+static int CallSymbol ( module_t *, char * );
+#endif
- return( p_bank );
-}
+#ifdef HAVE_DYNAMIC_PLUGINS
+static module_symbols_t symbols;
+#endif
/*****************************************************************************
* module_InitBank: create the module bank.
*****************************************************************************
- * This function creates a module bank structure and fills it with the
- * built-in modules, as well as all the dynamic modules it can find.
+ * This function creates a module bank structure which will be filled later
+ * on with all the modules found.
*****************************************************************************/
-void module_InitBank( module_bank_t * p_bank )
+void module_InitBank( vlc_object_t *p_this )
{
- static char * path[] = { ".", "lib", PLUGIN_PATH, NULL } ;
-
- char ** ppsz_path = path;
- char * psz_file;
-#ifdef SYS_BEOS
- char * psz_program_path = beos_GetProgramPath();
- int i_programlen = strlen( psz_program_path );
+ p_this->p_vlc->module_bank.first = NULL;
+ p_this->p_vlc->module_bank.i_count = 0;
+ vlc_mutex_init( p_this, &p_this->p_vlc->module_bank.lock );
+
+ /*
+ * Store the symbols to be exported
+ */
+#ifdef HAVE_DYNAMIC_PLUGINS
+ STORE_SYMBOLS( &symbols );
#endif
- DIR * dir;
- struct dirent * file;
-
- p_bank->first = NULL;
- vlc_mutex_init( &p_bank->lock );
-
- intf_Msg( "module: module bank initialized" );
-
- for( ; *ppsz_path != NULL ; ppsz_path++ )
- {
- if( (dir = opendir( *ppsz_path )) )
- {
- /* Store strlen(*ppsz_path) for later use. */
- int i_dirlen = strlen( *ppsz_path );
-
- /* Parse the directory and try to load all files it contains. */
- while( (file = readdir( dir )) )
- {
- int i_filelen = strlen( file->d_name );
- /* We only load files ending with ".so" */
- if( i_filelen > 3
- && !strncmp( file->d_name + i_filelen - 3, ".so", 3 ) )
- {
-#ifdef SYS_BEOS
- /* Under BeOS, we need to add beos_GetProgramPath() to
- * access files under the current directory */
- if( strncmp( file->d_name, "/", 1 ) )
- {
- psz_file = malloc( i_programlen + i_dirlen
- + i_filelen + 3 );
- if( psz_file == NULL )
- {
- continue;
- }
- sprintf( psz_file, "%s/%s/%s", psz_programlen,
- *ppsz_path, file->d_name );
- }
- else
-#endif
- {
- psz_file = malloc( i_dirlen + i_filelen + 2 );
- if( psz_file == NULL )
- {
- continue;
- }
- sprintf( psz_file, "%s/%s", *ppsz_path, file->d_name );
- }
- /* We created a nice filename -- now we just try to load
- * it as a dynamic module. */
- AllocateDynModule( p_bank, psz_file );
-
- /* We don't care if the allocation succeeded */
- free( psz_file );
- }
- }
- }
- }
+ return;
+}
+/*****************************************************************************
+ * module_ResetBank: reset the module bank.
+ *****************************************************************************
+ * This function resets the module bank by unloading all unused plugin
+ * modules.
+ *****************************************************************************/
+void module_ResetBank( vlc_object_t *p_this )
+{
+ msg_Err( p_this, "FIXME: module_ResetBank unimplemented" );
return;
}
/*****************************************************************************
- * module_DestroyBank: destroy the module bank.
+ * module_EndBank: empty the module bank.
*****************************************************************************
- * This function unloads all unused dynamic modules and removes the module
+ * This function unloads all unused plugin modules and empties the module
* bank in case of success.
*****************************************************************************/
-void module_DestroyBank( module_bank_t * p_bank )
+void module_EndBank( vlc_object_t *p_this )
{
module_t * p_next;
- while( p_bank->first != NULL )
+ while( p_this->p_vlc->module_bank.first != NULL )
{
- if( FreeModule( p_bank, p_bank->first ) )
+ if( DeleteModule( p_this->p_vlc->module_bank.first ) )
{
/* Module deletion failed */
- intf_ErrMsg( "module error: `%s' can't be removed. trying harder.",
- p_bank->first->psz_name );
+ msg_Err( p_this, "`%s' can't be removed, trying harder",
+ p_this->p_vlc->module_bank.first->psz_object_name );
/* We just free the module by hand. Niahahahahaha. */
- p_next = p_bank->first->next;
- free(p_bank->first);
- p_bank->first = p_next;
+ p_next = p_this->p_vlc->module_bank.first->next;
+ free( p_this->p_vlc->module_bank.first );
+ p_this->p_vlc->module_bank.first = p_next;
}
}
/* Destroy the lock */
- vlc_mutex_destroy( &p_bank->lock );
-
- /* We can free the module bank */
- free( p_bank );
+ vlc_mutex_destroy( &p_this->p_vlc->module_bank.lock );
return;
}
/*****************************************************************************
- * module_ResetBank: reset the module bank.
+ * module_LoadMain: load the main program info into the module bank.
*****************************************************************************
- * This function resets the module bank by unloading all unused dynamic
- * modules.
+ * This function fills the module bank structure with the main module infos.
+ * This is very useful as it will allow us to consider the main program just
+ * as another module, and for instance the configuration options of main will
+ * be available in the module bank structure just as for every other module.
*****************************************************************************/
-void module_ResetBank( module_bank_t * p_bank )
+void module_LoadMain( vlc_object_t *p_this )
{
- intf_ErrMsg( "FIXME: module_ResetBank unimplemented" );
- return;
+ AllocateBuiltinModule( p_this, InitModule__MODULE_main,
+ ActivateModule__MODULE_main,
+ DeactivateModule__MODULE_main );
+}
+
+/*****************************************************************************
+ * module_LoadBuiltins: load all modules which we built with.
+ *****************************************************************************
+ * This function fills the module bank structure with the builtin modules.
+ *****************************************************************************/
+void module_LoadBuiltins( vlc_object_t * p_this )
+{
+ msg_Dbg( p_this, "checking builtin modules" );
+ ALLOCATE_ALL_BUILTINS();
+}
+
+/*****************************************************************************
+ * module_LoadPlugins: load all plugin modules we can find.
+ *****************************************************************************
+ * This function fills the module bank structure with the plugin modules.
+ *****************************************************************************/
+void module_LoadPlugins( vlc_object_t * p_this )
+{
+#ifdef HAVE_DYNAMIC_PLUGINS
+ msg_Dbg( p_this, "checking plugin modules" );
+ AllocateAllPlugins( p_this );
+#endif
}
/*****************************************************************************
* This function parses the module bank and hides modules that have been
* unused for a while.
*****************************************************************************/
-void module_ManageBank( module_bank_t * p_bank )
+void module_ManageBank( vlc_object_t *p_this )
{
+#ifdef HAVE_DYNAMIC_PLUGINS
module_t * p_module;
/* We take the global lock */
- vlc_mutex_lock( &p_bank->lock );
+ vlc_mutex_lock( &p_this->p_vlc->module_bank.lock );
/* Parse the module list to see if any modules need to be unloaded */
- for( p_module = p_bank->first ;
+ for( p_module = p_this->p_vlc->module_bank.first ;
p_module != NULL ;
p_module = p_module->next )
{
- /* If the module is unused and if it is a dynamic module... */
+ /* If the module is unused and if it is a plugin module... */
if( p_module->i_usage == 0 && !p_module->b_builtin )
{
if( p_module->i_unused_delay < MODULE_HIDE_DELAY )
}
else
{
- intf_WarnMsg( 1, "module: hiding unused module `%s'",
- p_module->psz_name );
+ msg_Dbg( p_this, "hiding unused plugin module `%s'",
+ p_module->psz_object_name );
HideModule( p_module );
+
+ /* Break here, so that we only hide one module at a time */
+ break;
}
}
}
/* We release the global lock */
- vlc_mutex_unlock( &p_bank->lock );
+ vlc_mutex_unlock( &p_this->p_vlc->module_bank.lock );
+#endif /* HAVE_DYNAMIC_PLUGINS */
return;
}
*****************************************************************************
* This function returns the module that best fits the asked capabilities.
*****************************************************************************/
-module_t * module_Need( module_bank_t *p_bank,
- int i_capabilities, void *p_data )
+module_t * __module_Need( vlc_object_t *p_this,
+ int i_capability, char *psz_name, void *p_data )
{
- module_t * p_module;
- module_t * p_bestmodule = NULL;
- int i_score, i_totalscore, i_bestscore = 0;
- int i_index;
+ typedef struct module_list_s module_list_t;
+
+ struct module_list_s
+ {
+ module_t *p_module;
+ module_list_t *p_next;
+ };
+
+ module_list_t *p_list, *p_first, *p_tmp;
+
+ int i_ret, i_index = 0;
+ vlc_bool_t b_intf = 0;
+
+ module_t *p_module;
+ char *psz_realname = NULL;
+
+ msg_Info( p_this, "looking for %s module",
+ MODULE_CAPABILITY( i_capability ) );
/* We take the global lock */
- vlc_mutex_lock( &p_bank->lock );
+ vlc_mutex_lock( &p_this->p_vlc->module_bank.lock );
+
+ if( psz_name != NULL && *psz_name )
+ {
+ /* A module name was requested. */
+ psz_realname = strdup( psz_name );
+ if( psz_realname )
+ {
+ char *p;
+ p = strchr( psz_realname, ':' );
+ if( p )
+ {
+ *p = '\0';
+ }
+ psz_name = psz_realname;
+ }
+ }
+
+ /* Sort the modules and test them */
+ p_list = malloc( p_this->p_vlc->module_bank.i_count
+ * sizeof( module_list_t ) );
+ p_first = NULL;
/* Parse the module list for capabilities and probe each of them */
- for( p_module = p_bank->first ;
+ for( p_module = p_this->p_vlc->module_bank.first ;
p_module != NULL ;
p_module = p_module->next )
{
/* Test that this module can do everything we need */
- if( ( p_module->i_capabilities & i_capabilities ) == i_capabilities )
+ if( !(p_module->i_capabilities & ( 1 << i_capability )) )
+ {
+ continue;
+ }
+
+ /* Test if we have the required CPU */
+ if( (p_module->i_cpu_capabilities
+ & p_this->p_vlc->i_cpu_capabilities)
+ != p_module->i_cpu_capabilities )
{
- i_totalscore = 0;
+ continue;
+ }
- LockModule( p_module );
+ /* If we required a shortcut, check this plugin provides it. */
+ if( psz_name != NULL && *psz_name )
+ {
+ vlc_bool_t b_trash = 1;
+ int i_dummy;
- /* Parse all the requested capabilities and test them */
- for( i_index = 0 ; (1 << i_index) <= i_capabilities ; i_index++ )
+ for( i_dummy = 0;
+ b_trash && p_module->pp_shortcuts[i_dummy];
+ i_dummy++ )
{
- if( ( (1 << i_index) & i_capabilities ) )
- {
- i_score = ( (function_list_t *)p_module->p_functions)
- [i_index].pf_probe( p_data );
+ b_trash = strcmp( psz_name, p_module->pp_shortcuts[i_dummy] );
+ }
- if( i_score )
- {
- i_totalscore += i_score;
- }
- else
- {
- break;
- }
- }
+ if( b_trash )
+ {
+ continue;
}
+ }
+ /* If we didn't require a shortcut, trash zero-scored plugins */
+ else if( !p_module->pi_score[i_capability] )
+ {
+ continue;
+ }
- /* If the high score was broken, we have a new champion */
- if( i_totalscore > i_bestscore )
+ /* Special case: test if we requested a particular intf plugin */
+ if( i_capability == MODULE_CAPABILITY_INTF )
+ {
+ if( p_module->psz_program != NULL
+ && !strcmp( p_module->psz_program,
+ p_this->p_vlc->psz_object_name ) )
{
- /* Keep the current module locked, but release the previous */
- if( p_bestmodule != NULL )
+ if( !b_intf )
{
- UnlockModule( p_bestmodule );
+ /* Remove previous non-matching plugins */
+ i_index = 0;
+ b_intf = 1;
}
+ }
+ else
+ {
+ if( b_intf )
+ {
+ /* This one doesn't match */
+ continue;
+ }
+ }
+ }
+
+ /* Store this new module */
+ p_list[ i_index ].p_module = p_module;
- /* This is the new best module */
- i_bestscore = i_totalscore;
- p_bestmodule = p_module;
+ /* Add it to the modules-to-probe list */
+ if( i_index == 0 )
+ {
+ p_list[ 0 ].p_next = NULL;
+ p_first = p_list;
+ }
+ else
+ {
+ /* Ok, so at school you learned that quicksort is quick, and
+ * bubble sort sucks raw eggs. But that's when dealing with
+ * thousands of items. Here we have barely 50. */
+ module_list_t *p_newlist = p_first;
+
+ if( p_first->p_module->pi_score[i_capability]
+ < p_module->pi_score[i_capability] )
+ {
+ p_list[ i_index ].p_next = p_first;
+ p_first = &p_list[ i_index ];
}
else
{
- /* This module wasn't interesting, unlock it and forget it */
- UnlockModule( p_module );
+ while( p_newlist->p_next != NULL
+ && p_newlist->p_next->p_module->pi_score[i_capability]
+ >= p_module->pi_score[i_capability] )
+ {
+ p_newlist = p_newlist->p_next;
+ }
+
+ p_list[ i_index ].p_next = p_newlist->p_next;
+ p_newlist->p_next = &p_list[ i_index ];
}
}
+
+ i_index++;
}
- /* We release the global lock */
- vlc_mutex_unlock( &p_bank->lock );
+ /* Lock all selected modules */
+ p_tmp = p_first;
+ while( p_tmp != NULL )
+ {
+ LockModule( p_tmp->p_module );
+ p_tmp = p_tmp->p_next;
+ }
+
+ /* We can release the global lock, module refcounts were incremented */
+ vlc_mutex_unlock( &p_this->p_vlc->module_bank.lock );
+
+ /* Parse the linked list and use the first successful module */
+ p_tmp = p_first;
+ while( p_tmp != NULL )
+ {
+ /* Test the requested capability */
+ switch( i_capability )
+ {
+ case MODULE_CAPABILITY_ACCESS:
+ i_ret = p_tmp->p_module->p_functions->access.functions.
+ access.pf_open( (input_thread_t *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_DEMUX:
+ i_ret = p_tmp->p_module->p_functions->demux.functions.
+ demux.pf_init( (input_thread_t *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_NETWORK:
+ i_ret = p_tmp->p_module->p_functions->network.functions.
+ network.pf_open( p_this, (network_socket_t *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_DECODER:
+ i_ret = p_tmp->p_module->p_functions->dec.functions.
+ dec.pf_probe( (u8 *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_INTF:
+ i_ret = p_tmp->p_module->p_functions->intf.functions.
+ intf.pf_open( (intf_thread_t *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_AOUT:
+ i_ret = p_tmp->p_module->p_functions->aout.functions.
+ aout.pf_open( (aout_thread_t *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_VOUT:
+ i_ret = p_tmp->p_module->p_functions->vout.functions.
+ vout.pf_create( (vout_thread_t *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_CHROMA:
+ i_ret = p_tmp->p_module->p_functions->chroma.functions.
+ chroma.pf_init( (vout_thread_t *)p_data );
+ break;
+
+ case MODULE_CAPABILITY_IDCT:
+ case MODULE_CAPABILITY_IMDCT:
+ case MODULE_CAPABILITY_MOTION:
+ case MODULE_CAPABILITY_DOWNMIX:
+ case MODULE_CAPABILITY_MEMCPY:
+ /* This one always works */
+ i_ret = 0;
+ break;
+
+ default:
+ msg_Err( p_this, "unknown module type %i", i_capability );
+ i_ret = -1;
+ break;
+ }
+
+ /* If the high score was broken, we have a new champion */
+ if( i_ret == 0 )
+ {
+ break;
+ }
+ else
+ {
+ UnlockModule( p_tmp->p_module );
+ }
- intf_WarnMsg( 1, "module: locking module `%s'", p_bestmodule->psz_name );
+ p_tmp = p_tmp->p_next;
+ }
+
+ /* Store the locked module value */
+ if( p_tmp != NULL )
+ {
+ p_module = p_tmp->p_module;
+ p_tmp = p_tmp->p_next;
+ }
+ else
+ {
+ p_module = NULL;
+ }
+
+ /* Unlock the remaining modules */
+ while( p_tmp != NULL )
+ {
+ UnlockModule( p_tmp->p_module );
+ p_tmp = p_tmp->p_next;
+ }
- /* Don't forget that the module is still locked if bestmodule != NULL */
- return( p_bestmodule );
+ free( p_list );
+
+ if( p_module != NULL )
+ {
+ msg_Info( p_module, "found and locked %s module `%s'",
+ MODULE_CAPABILITY( i_capability ),
+ p_module->psz_object_name );
+ }
+ else if( p_first == NULL )
+ {
+ msg_Err( p_this, "no %s module named `%s'",
+ MODULE_CAPABILITY( i_capability ), psz_name );
+ }
+ else if( psz_name != NULL && *psz_name )
+ {
+ msg_Err( p_this, "could not load %s module `%s'",
+ MODULE_CAPABILITY( i_capability ), psz_name );
+ }
+
+ if( psz_realname )
+ {
+ free( psz_realname );
+ }
+
+ /* Don't forget that the module is still locked */
+ return p_module;
}
/*****************************************************************************
* This function must be called by the thread that called module_Need, to
* decrease the reference count and allow for hiding of modules.
*****************************************************************************/
-void module_Unneed( module_bank_t * p_bank, module_t * p_module )
+void module_Unneed( module_t * p_module )
{
/* We take the global lock */
- vlc_mutex_lock( &p_bank->lock );
+ vlc_mutex_lock( &p_module->p_vlc->module_bank.lock );
/* Just unlock the module - we can't do anything if it fails,
* so there is no need to check the return value. */
UnlockModule( p_module );
- intf_WarnMsg( 1, "module: unlocking module `%s'", p_module->psz_name );
+ msg_Info( p_module, "unlocking module `%s'", p_module->psz_object_name );
/* We release the global lock */
- vlc_mutex_unlock( &p_bank->lock );
+ vlc_mutex_unlock( &p_module->p_vlc->module_bank.lock );
return;
}
*****************************************************************************/
/*****************************************************************************
- * AllocateDynModule: load a module into memory and initialize it.
+ * AllocateAllPlugins: load all plugin modules we can find.
+ *****************************************************************************/
+#ifdef HAVE_DYNAMIC_PLUGINS
+static void AllocateAllPlugins( vlc_object_t *p_this )
+{
+ static char * path[] = { ".", "plugins", PLUGIN_PATH, NULL, NULL };
+
+ char ** ppsz_path = path;
+ char * psz_fullpath;
+ char * psz_file;
+#if defined( SYS_BEOS ) || defined( SYS_DARWIN )
+ char * psz_vlcpath = system_GetProgramPath();
+ int i_vlclen = strlen( psz_vlcpath );
+ vlc_bool_t b_notinroot;
+#endif
+ DIR * dir;
+ struct dirent * file;
+
+ for( ; *ppsz_path != NULL ; ppsz_path++ )
+ {
+ /* Store strlen(*ppsz_path) for later use. */
+ int i_dirlen = strlen( *ppsz_path );
+
+#if defined( SYS_BEOS ) || defined( SYS_DARWIN )
+ b_notinroot = 0;
+ /* Under BeOS, we need to add beos_GetProgramPath() to access
+ * files under the current directory */
+ if( ( i_dirlen > 1 ) && strncmp( *ppsz_path, "/", 1 ) )
+ {
+ i_dirlen += i_vlclen + 2;
+ b_notinroot = 1;
+
+ psz_fullpath = malloc( i_dirlen );
+ if( psz_fullpath == NULL )
+ {
+ continue;
+ }
+ sprintf( psz_fullpath, "%s/%s", psz_vlcpath, *ppsz_path );
+ }
+ else
+#endif
+ {
+ psz_fullpath = *ppsz_path;
+ }
+
+ msg_Dbg( p_this, "browsing `%s'", psz_fullpath );
+
+ if( (dir = opendir( psz_fullpath )) )
+ {
+ /* Parse the directory and try to load all files it contains. */
+ while( (file = readdir( dir )) )
+ {
+ int i_filelen = strlen( file->d_name );
+
+ /* We only load files ending with ".so" */
+ if( i_filelen > 3
+ && !strncmp( file->d_name + i_filelen - 3, ".so", 3 ) )
+ {
+ psz_file = malloc( i_dirlen + i_filelen + 2 );
+ if( psz_file == NULL )
+ {
+ continue;
+ }
+ sprintf( psz_file, "%s/%s", psz_fullpath, file->d_name );
+
+ /* We created a nice filename -- now we just try to load
+ * it as a plugin module. */
+ AllocatePluginModule( p_this, psz_file );
+
+ /* We don't care if the allocation succeeded */
+ free( psz_file );
+ }
+ }
+
+ /* Close the directory if successfully opened */
+ closedir( dir );
+ }
+
+#if defined( SYS_BEOS ) || defined( SYS_DARWIN )
+ if( b_notinroot )
+ {
+ free( psz_fullpath );
+ }
+#endif
+ }
+}
+
+/*****************************************************************************
+ * AllocatePluginModule: load a module into memory and initialize it.
*****************************************************************************
* This function loads a dynamically loadable module and allocates a structure
* for its information data. The module can then be handled by module_Need,
- * module_Unneed and HideModule. It can be removed by FreeModule.
+ * module_Unneed and HideModule. It can be removed by DeleteModule.
*****************************************************************************/
-static int AllocateDynModule( module_bank_t * p_bank, char * psz_filename )
+static int AllocatePluginModule( vlc_object_t * p_this, char * psz_filename )
{
+ char **pp_shortcut;
module_t * p_module, * p_othermodule;
module_handle_t handle;
/* Try to dynamically load the module. */
if( module_load( psz_filename, &handle ) )
{
- /* The dynamic module couldn't be opened */
- intf_ErrMsg( "module warning: cannot open %s (%s)",
- psz_filename, module_error() );
- return( -1 );
+ char psz_buffer[256];
+
+ /* The plugin module couldn't be opened */
+ msg_Warn( p_this, "cannot open %s (%s)",
+ psz_filename, module_error( psz_buffer ) );
+ return -1;
}
/* Now that we have successfully loaded the module, we can
* allocate a structure for it */
- p_module = malloc( sizeof( module_t ) );
+ p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
if( p_module == NULL )
{
- intf_ErrMsg( "module error: can't allocate p_module" );
+ msg_Err( p_this, "out of memory" );
module_unload( handle );
- return( -1 );
+ return -1;
}
+ vlc_object_attach( p_module, p_this );
+
/* We need to fill these since they may be needed by CallSymbol() */
- p_module->psz_filename = psz_filename;
- p_module->handle = handle;
+ p_module->is.plugin.psz_filename = psz_filename;
+ p_module->is.plugin.handle = handle;
+ p_module->p_symbols = &symbols;
- /* Initialize the module : fill p_module->psz_name, etc. */
- if( CallSymbol( p_module, "InitModule" ) != 0 )
+ /* Initialize the module: fill p_module->psz_object_name, default config */
+ if( CallSymbol( p_module, "InitModule" MODULE_SUFFIX ) != 0 )
{
/* We couldn't call InitModule() */
- free( p_module );
- module_unload( handle );
- return( -1 );
- }
-
- /* Check that version numbers match */
- if( strcmp( VERSION, p_module->psz_version ) )
- {
- free( p_module );
+ vlc_object_destroy( p_module );
module_unload( handle );
- return( -1 );
+ return -1;
}
/* Check that we don't already have a module with this name */
- for( p_othermodule = p_bank->first ;
+ for( p_othermodule = p_this->p_vlc->module_bank.first ;
p_othermodule != NULL ;
p_othermodule = p_othermodule->next )
{
- if( !strcmp( p_othermodule->psz_name, p_module->psz_name ) )
+ if( !strcmp( p_othermodule->psz_object_name,
+ p_module->psz_object_name ) )
{
- free( p_module );
+ msg_Warn( p_this,
+ "cannot load %s, a module named `%s' already exists",
+ psz_filename, p_module->psz_object_name );
+ config_Free( p_module );
+ vlc_object_destroy( p_module );
module_unload( handle );
- return( -1 );
+ return -1;
}
}
/* Activate the module : fill the capability structure, etc. */
- if( CallSymbol( p_module, "ActivateModule" ) != 0 )
+ if( CallSymbol( p_module, "ActivateModule" MODULE_SUFFIX ) != 0 )
{
/* We couldn't call ActivateModule() */
- free( p_module );
+ config_Free( p_module );
+ vlc_object_destroy( p_module );
module_unload( handle );
- return( -1 );
+ return -1;
+ }
+
+ for( pp_shortcut = p_module->pp_shortcuts ; *pp_shortcut ; pp_shortcut++ )
+ {
+ *pp_shortcut = strdup( *pp_shortcut );
}
/* We strdup() these entries so that they are still valid when the
* module is unloaded. */
- p_module->psz_filename = strdup( p_module->psz_filename );
- p_module->psz_name = strdup( p_module->psz_name );
+ p_module->is.plugin.psz_filename =
+ strdup( p_module->is.plugin.psz_filename );
+ p_module->psz_object_name = strdup( p_module->psz_object_name );
p_module->psz_longname = strdup( p_module->psz_longname );
- p_module->psz_version = strdup( p_module->psz_version );
- if( p_module->psz_filename == NULL
- || p_module->psz_name == NULL
- || p_module->psz_longname == NULL
- || p_module->psz_version == NULL )
- {
- intf_ErrMsg( "module error: can't duplicate strings" );
- free( p_module->psz_filename );
- free( p_module->psz_name );
+
+ if( p_module->is.plugin.psz_filename == NULL
+ || p_module->psz_object_name == NULL
+ || p_module->psz_longname == NULL )
+ {
+ msg_Err( p_this, "out of memory" );
+
+ free( p_module->is.plugin.psz_filename );
+ free( p_module->psz_object_name );
free( p_module->psz_longname );
- free( p_module->psz_version );
- free( p_module );
+ free( p_module->psz_program );
+
+ config_Free( p_module );
+ vlc_object_destroy( p_module );
module_unload( handle );
- return( -1 );
+ return -1;
+ }
+
+ if( p_module->psz_program != NULL )
+ {
+ p_module->psz_program = strdup( p_module->psz_program );
}
/* Everything worked fine ! The module is ready to be added to the list. */
p_module->b_builtin = 0;
/* Link module into the linked list */
- if( p_bank->first != NULL )
+ if( p_this->p_vlc->module_bank.first != NULL )
{
- p_bank->first->prev = p_module;
+ p_this->p_vlc->module_bank.first->prev = p_module;
}
- p_module->next = p_bank->first;
+ p_module->next = p_this->p_vlc->module_bank.first;
p_module->prev = NULL;
- p_bank->first = p_module;
+ p_this->p_vlc->module_bank.first = p_module;
+ p_this->p_vlc->module_bank.i_count++;
- /* Immediate message so that a slow module doesn't make the user wait */
- intf_WarnMsgImm( 1, "module: dynamic module `%s', %s",
- p_module->psz_name, p_module->psz_longname );
+ msg_Dbg( p_this, "plugin `%s', %s",
+ p_module->psz_object_name, p_module->psz_longname );
- return( 0 );
+ return 0;
}
+#endif /* HAVE_DYNAMIC_PLUGINS */
/*****************************************************************************
- * HideModule: remove a module from memory but keep its structure.
+ * AllocateBuiltinModule: initialize a builtin module.
*****************************************************************************
- * This function can only be called if i_usage == 0. It will make a call
- * to the module's inner DeactivateModule() symbol, and then unload it
- * from memory. A call to module_Need() will automagically load it again.
+ * This function registers a builtin module and allocates a structure
+ * for its information data. The module can then be handled by module_Need,
+ * module_Unneed and HideModule. It can be removed by DeleteModule.
*****************************************************************************/
-static int HideModule( module_t * p_module )
+static int AllocateBuiltinModule( vlc_object_t * p_this,
+ int ( *pf_init ) ( module_t * ),
+ int ( *pf_activate ) ( module_t * ),
+ int ( *pf_deactivate ) ( module_t * ) )
{
- if( p_module->b_builtin )
+ module_t * p_module, * p_othermodule;
+
+ /* Now that we have successfully loaded the module, we can
+ * allocate a structure for it */
+ p_module = vlc_object_create( p_this, VLC_OBJECT_MODULE );
+ if( p_module == NULL )
{
- /* A built-in module should never be hidden. */
- intf_ErrMsg( "module error: trying to hide built-in module `%s'",
- p_module->psz_name );
- return( -1 );
+ msg_Err( p_this, "out of memory" );
+ return -1;
}
- if( p_module->i_usage >= 1 )
+ /* Initialize the module : fill p_module->psz_object_name, etc. */
+ if( pf_init( p_module ) != 0 )
{
- intf_ErrMsg( "module error: trying to hide module `%s' which is still"
- " in use", p_module->psz_name );
- return( -1 );
+ /* With a well-written module we shouldn't have to print an
+ * additional error message here, but just make sure. */
+ msg_Err( p_this, "failed calling init in builtin module" );
+ vlc_object_destroy( p_module );
+ return -1;
}
- if( p_module->i_usage <= -1 )
+ /* Check that we don't already have a module with this name */
+ for( p_othermodule = p_this->p_vlc->module_bank.first ;
+ p_othermodule != NULL ;
+ p_othermodule = p_othermodule->next )
{
- intf_ErrMsg( "module error: trying to hide module `%s' which is already"
- " hidden", p_module->psz_name );
- return( -1 );
+ if( !strcmp( p_othermodule->psz_object_name,
+ p_module->psz_object_name ) )
+ {
+ msg_Warn( p_this, "cannot load builtin `%s', "
+ "a module named `%s' already exists",
+ p_module->psz_object_name, p_module->psz_object_name );
+ config_Free( p_module );
+ vlc_object_destroy( p_module );
+ return -1;
+ }
}
- /* Deactivate the module : free the capability structure, etc. */
- if( CallSymbol( p_module, "DeactivateModule" ) != 0 )
+ if( pf_activate( p_module ) != 0 )
{
- /* We couldn't call DeactivateModule() -- looks nasty, but
- * we can't do much about it. Just try to unload module anyway. */
- module_unload( p_module->handle );
- p_module->i_usage = -1;
- return( -1 );
+ /* With a well-written module we shouldn't have to print an
+ * additional error message here, but just make sure. */
+ msg_Err( p_this, "failed calling activate in builtin module" );
+ config_Free( p_module );
+ vlc_object_destroy( p_module );
+ return -1;
}
- /* Everything worked fine, we can safely unload the module. */
- module_unload( p_module->handle );
- p_module->i_usage = -1;
+ /* Everything worked fine ! The module is ready to be added to the list. */
+ p_module->i_usage = 0;
+ p_module->i_unused_delay = 0;
+
+ p_module->b_builtin = 1;
+ p_module->is.builtin.pf_deactivate = pf_deactivate;
+
+ /* Link module into the linked list */
+ if( p_this->p_vlc->module_bank.first != NULL )
+ {
+ p_this->p_vlc->module_bank.first->prev = p_module;
+ }
+ p_module->next = p_this->p_vlc->module_bank.first;
+ p_module->prev = NULL;
+ p_this->p_vlc->module_bank.first = p_module;
+ p_this->p_vlc->module_bank.i_count++;
+
+ msg_Dbg( p_this, "builtin `%s', %s",
+ p_module->psz_object_name, p_module->psz_longname );
- return( 0 );
+ vlc_object_attach( p_module, p_this );
+
+ return 0;
}
/*****************************************************************************
- * FreeModule: delete a module and its structure.
+ * DeleteModule: delete a module and its structure.
*****************************************************************************
* This function can only be called if i_usage <= 0.
*****************************************************************************/
-static int FreeModule( module_bank_t * p_bank, module_t * p_module )
+static int DeleteModule( module_t * p_module )
{
/* If the module is not in use but is still in memory, we first have
* to hide it and remove it from memory before we can free the
{
if( p_module->i_usage != 0 )
{
- intf_ErrMsg( "module error: trying to free builtin module `%s' with"
- " usage %i", p_module->psz_name, p_module->i_usage );
- return( -1 );
+ msg_Err( p_module, "trying to free builtin module `%s' with "
+ "usage %i", p_module->psz_object_name, p_module->i_usage );
+ return -1;
+ }
+ else
+ {
+ /* We deactivate the module now. */
+ p_module->is.builtin.pf_deactivate( p_module );
}
}
+#ifdef HAVE_DYNAMIC_PLUGINS
else
{
if( p_module->i_usage >= 1 )
{
- intf_ErrMsg( "module error: trying to free module `%s' which is"
- " still in use", p_module->psz_name );
- return( -1 );
+ msg_Err( p_module, "trying to free module `%s' which is "
+ "still in use", p_module->psz_object_name );
+ return -1;
}
/* Two possibilities here: i_usage == -1 and the module is already
{
if( HideModule( p_module ) != 0 )
{
- return( -1 );
+ return -1;
}
}
}
+#endif
- /* Unlink the module from the linked list. */
- if( p_module == p_bank->first )
- {
- p_bank->first = p_module->next;
- }
+ vlc_object_unlink_all( p_module );
+ /* Unlink the module from the linked list. */
if( p_module->prev != NULL )
{
p_module->prev->next = p_module->next;
}
+ else
+ {
+ p_module->p_vlc->module_bank.first = p_module->next;
+ }
if( p_module->next != NULL )
{
p_module->next->prev = p_module->prev;
}
+ p_module->p_vlc->module_bank.i_count--;
+
/* We free the structures that we strdup()ed in Allocate*Module(). */
- free( p_module->psz_filename );
- free( p_module->psz_name );
- free( p_module->psz_longname );
- free( p_module->psz_version );
+#ifdef HAVE_DYNAMIC_PLUGINS
+ if( !p_module->b_builtin )
+ {
+ char **pp_shortcut = p_module->pp_shortcuts;
+
+ for( ; *pp_shortcut ; pp_shortcut++ )
+ {
+ free( *pp_shortcut );
+ }
+
+ free( p_module->is.plugin.psz_filename );
+ free( p_module->psz_object_name );
+ free( p_module->psz_longname );
+ free( p_module->psz_program );
+ }
+#endif
- free( p_module );
+ config_Free( p_module );
+ vlc_object_destroy( p_module );
- return( 0 );
+ return 0;
}
/*****************************************************************************
{
/* This module is already loaded and activated, we can return */
p_module->i_usage++;
- return( 0 );
+ return 0;
}
if( p_module->b_builtin )
{
- /* A built-in module should always have a refcount >= 0 ! */
- intf_ErrMsg( "module error: built-in module `%s' has refcount %i",
- p_module->psz_name, p_module->i_usage );
- return( -1 );
+ /* A builtin module should always have a refcount >= 0 ! */
+ msg_Err( p_module, "builtin module `%s' has refcount %i",
+ p_module->psz_object_name, p_module->i_usage );
+ return -1;
}
+#ifdef HAVE_DYNAMIC_PLUGINS
if( p_module->i_usage != -1 )
{
/* This shouldn't happen. Ever. We have serious problems here. */
- intf_ErrMsg( "module error: dynamic module `%s' has refcount %i",
- p_module->psz_name, p_module->i_usage );
- return( -1 );
+ msg_Err( p_module, "plugin module `%s' has refcount %i",
+ p_module->psz_object_name, p_module->i_usage );
+ return -1;
}
/* i_usage == -1, which means that the module isn't in memory */
- if( module_load( p_module->psz_filename, &p_module->handle ) )
+ if( module_load( p_module->is.plugin.psz_filename,
+ &p_module->is.plugin.handle ) )
{
- /* The dynamic module couldn't be opened */
- intf_ErrMsg( "module error: cannot open %s (%s)",
- p_module->psz_filename, module_error() );
- return( -1 );
+ char psz_buffer[256];
+
+ /* The plugin module couldn't be opened */
+ msg_Err( p_module, "cannot open %s (%s)",
+ p_module->is.plugin.psz_filename, module_error(psz_buffer) );
+ return -1;
}
/* FIXME: what to do if the guy modified the plugin while it was
* to be a bit more clever here. */
/* Activate the module : fill the capability structure, etc. */
- if( CallSymbol( p_module, "ActivateModule" ) != 0 )
+ if( CallSymbol( p_module, "ActivateModule" MODULE_SUFFIX ) != 0 )
{
/* We couldn't call ActivateModule() -- looks nasty, but
* we can't do much about it. Just try to unload module. */
- module_unload( p_module->handle );
+ module_unload( p_module->is.plugin.handle );
p_module->i_usage = -1;
- return( -1 );
+ return -1;
}
/* Everything worked fine ! The module is ready to be used */
p_module->i_usage = 1;
+#endif /* HAVE_DYNAMIC_PLUGINS */
- return( 0 );
+ return 0;
}
/*****************************************************************************
if( p_module->i_usage <= 0 )
{
/* This shouldn't happen. Ever. We have serious problems here. */
- intf_ErrMsg( "module error: trying to call module_Unneed() on `%s'"
- " which isn't even in use", p_module->psz_name );
- return( -1 );
+ msg_Err( p_module, "trying to call module_Unneed() on `%s' "
+ "which is not in use", p_module->psz_object_name );
+ return -1;
}
/* This module is still in use, we can return */
p_module->i_usage--;
p_module->i_unused_delay = 0;
- return( 0 );
+ return 0;
+}
+
+#ifdef HAVE_DYNAMIC_PLUGINS
+/*****************************************************************************
+ * HideModule: remove a module from memory but keep its structure.
+ *****************************************************************************
+ * This function can only be called if i_usage == 0. It will make a call
+ * to the module's inner DeactivateModule() symbol, and then unload it
+ * from memory. A call to module_Need() will automagically load it again.
+ *****************************************************************************/
+static int HideModule( module_t * p_module )
+{
+ if( p_module->b_builtin )
+ {
+ /* A builtin module should never be hidden. */
+ msg_Err( p_module, "trying to hide builtin module `%s'",
+ p_module->psz_object_name );
+ return -1;
+ }
+
+ if( p_module->i_usage >= 1 )
+ {
+ msg_Err( p_module, "trying to hide module `%s' which is still "
+ "in use", p_module->psz_object_name );
+ return -1;
+ }
+
+ if( p_module->i_usage <= -1 )
+ {
+ msg_Err( p_module, "trying to hide module `%s' which is already "
+ "hidden", p_module->psz_object_name );
+ return -1;
+ }
+
+ /* Deactivate the module : free the capability structure, etc. */
+ if( CallSymbol( p_module, "DeactivateModule" MODULE_SUFFIX ) != 0 )
+ {
+ /* We couldn't call DeactivateModule() -- looks nasty, but
+ * we can't do much about it. Just try to unload module anyway. */
+ module_unload( p_module->is.plugin.handle );
+ p_module->i_usage = -1;
+ return -1;
+ }
+
+ /* Everything worked fine, we can safely unload the module. */
+ module_unload( p_module->is.plugin.handle );
+ p_module->i_usage = -1;
+
+ return 0;
}
/*****************************************************************************
*****************************************************************************/
static int CallSymbol( module_t * p_module, char * psz_name )
{
- typedef int ( symbol_t ) ( module_t * p_module );
- symbol_t * p_symbol;
+ int (* pf_symbol) ( module_t * p_module );
/* Try to resolve the symbol */
- p_symbol = module_getsymbol( p_module->handle, psz_name );
+ pf_symbol = module_getsymbol( p_module->is.plugin.handle, psz_name );
- if( !p_symbol )
+ if( pf_symbol == NULL )
{
+ char psz_buffer[256];
+
/* We couldn't load the symbol */
- intf_WarnMsg( 1, "module warning: "
- "cannot find symbol %s in module %s (%s)",
- psz_name, p_module->psz_filename, module_error() );
- return( -1 );
+ msg_Warn( p_module, "cannot find symbol %s in module %s (%s)",
+ psz_name, p_module->is.plugin.psz_filename,
+ module_error( psz_buffer ) );
+ return -1;
}
/* We can now try to call the symbol */
- if( p_symbol( p_module ) != 0 )
+ if( pf_symbol( p_module ) != 0 )
{
/* With a well-written module we shouldn't have to print an
* additional error message here, but just make sure. */
- intf_ErrMsg( "module error: failed calling symbol %s in module %s",
- psz_name, p_module->psz_filename );
- return( -1 );
+ msg_Err( p_module, "failed calling symbol %s in module %s",
+ psz_name, p_module->is.plugin.psz_filename );
+ return -1;
}
/* Everything worked fine, we can return */
- return( 0 );
+ return 0;
}
+#endif /* HAVE_DYNAMIC_PLUGINS */
projects / vlc / blobdiff