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vlc-gpu
Commit e03e85ca authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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Split the over-large module.c

parent f0ec1547
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Showing with 1102 additions and 943 deletions
src/Makefile.am
View file @ e03e85ca
......@@ -295,7 +295,9 @@ SOURCES_libvlc_common = \
misc/block.c \
modules/modules.h \
modules/modules.c \
modules/cache.c \
modules/entry.c \
modules/os.c \
misc/threads.c \
misc/stats.c \
misc/cpu.c \
......
src/modules/cache.c 0 → 100644
View file @ e03e85ca
/*****************************************************************************
* cache.c: Plugins cache
*****************************************************************************
* Copyright (C) 2001-2007 the VideoLAN team
* $Id$
*
* Authors: Sam Hocevar <sam@zoy.org>
* Ethan C. Baldridge <BaldridgeE@cadmus.com>
* Hans-Peter Jansen <hpj@urpla.net>
* Gildas Bazin <gbazin@videolan.org>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include <vlc/vlc.h>
#include "libvlc.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() */
#ifdef HAVE_DIRENT_H
# include <dirent.h>
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#if !defined(HAVE_DYNAMIC_PLUGINS)
/* no support for plugins */
#elif defined(HAVE_DL_DYLD)
# if defined(HAVE_MACH_O_DYLD_H)
# include <mach-o/dyld.h>
# endif
#elif defined(HAVE_DL_BEOS)
# if defined(HAVE_IMAGE_H)
# include <image.h>
# endif
#elif defined(HAVE_DL_WINDOWS)
# include <windows.h>
#elif defined(HAVE_DL_DLOPEN)
# if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
# include <dlfcn.h>
# endif
# if defined(HAVE_SYS_DL_H)
# include <sys/dl.h>
# endif
#elif defined(HAVE_DL_SHL_LOAD)
# if defined(HAVE_DL_H)
# include <dl.h>
# endif
#endif
#include "config/config.h"
#include "vlc_charset.h"
#include "modules/modules.h"
#include "modules/builtin.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
#ifdef HAVE_DYNAMIC_PLUGINS
static int CacheLoadConfig ( module_t *, FILE * );
static void CacheSaveConfig ( module_t *, FILE * );
static char * CacheName ( void );
/* Sub-version number
* (only used to avoid breakage in dev version when cache structure changes) */
#define CACHE_SUBVERSION_NUM 3
/*****************************************************************************
* LoadPluginsCache: loads the plugins cache file
*****************************************************************************
* This function will load the plugin cache if present and valid. This cache
* will in turn be queried by AllocateAllPlugins() to see if it needs to
* actually load the dynamically loadable module.
* This allows us to only fully load plugins when they are actually used.
*****************************************************************************/
void CacheLoad( vlc_object_t *p_this )
{
char *psz_filename, *psz_cachedir;
FILE *file;
int i, j, i_size, i_read;
char p_cachestring[sizeof("cache " COPYRIGHT_MESSAGE)];
char p_cachelang[6], p_lang[6];
int i_cache;
module_cache_t **pp_cache = 0;
int32_t i_file_size, i_marker;
libvlc_global_data_t *p_libvlc_global = vlc_global();
psz_cachedir = p_this->p_libvlc->psz_cachedir;
if( !psz_cachedir ) /* XXX: this should never happen */
{
msg_Err( p_this, "Unable to get cache directory" );
return;
}
i_size = asprintf( &psz_filename, "%s"DIR_SEP"%s",
psz_cachedir, CacheName() );
if( i_size <= 0 )
{
msg_Err( p_this, "out of memory" );
return;
}
if( p_libvlc_global->p_module_bank->b_cache_delete )
{
#if !defined( UNDER_CE )
unlink( psz_filename );
#else
wchar_t psz_wf[MAX_PATH];
MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
DeleteFile( psz_wf );
#endif
msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
free( psz_filename );
return;
}
msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
file = utf8_fopen( psz_filename, "rb" );
if( !file )
{
msg_Warn( p_this, "could not open plugins cache file %s for reading",
psz_filename );
free( psz_filename );
return;
}
free( psz_filename );
/* Check the file size */
i_read = fread( &i_file_size, 1, sizeof(i_file_size), file );
if( i_read != sizeof(i_file_size) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(too short)" );
fclose( file );
return;
}
fseek( file, 0, SEEK_END );
if( ftell( file ) != i_file_size )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(corrupted size)" );
fclose( file );
return;
}
fseek( file, sizeof(i_file_size), SEEK_SET );
/* Check the file is a plugins cache */
i_size = sizeof("cache " COPYRIGHT_MESSAGE) - 1;
i_read = fread( p_cachestring, 1, i_size, file );
if( i_read != i_size ||
memcmp( p_cachestring, "cache " COPYRIGHT_MESSAGE, i_size ) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
fclose( file );
return;
}
/* Check Sub-version number */
i_read = fread( &i_marker, 1, sizeof(i_marker), file );
if( i_read != sizeof(i_marker) || i_marker != CACHE_SUBVERSION_NUM )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(corrupted header)" );
fclose( file );
return;
}
/* Check the language hasn't changed */
sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
i_read = fread( p_cachelang, 1, i_size, file );
if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(language changed)" );
fclose( file );
return;
}
/* Check header marker */
i_read = fread( &i_marker, 1, sizeof(i_marker), file );
if( i_read != sizeof(i_marker) ||
i_marker != ftell( file ) - (int)sizeof(i_marker) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(corrupted header)" );
fclose( file );
return;
}
p_libvlc_global->p_module_bank->i_loaded_cache = 0;
if (fread( &i_cache, 1, sizeof(i_cache), file ) != sizeof(i_cache) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(file too short)" );
fclose( file );
return;
}
if( i_cache )
pp_cache = p_libvlc_global->p_module_bank->pp_loaded_cache =
malloc( i_cache * sizeof(void *) );
#define LOAD_IMMEDIATE(a) \
if( fread( (void *)&a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
#define LOAD_STRING(a) \
{ \
a = NULL; \
if( ( fread( &i_size, sizeof(i_size), 1, file ) != 1 ) \
|| ( i_size > 16384 ) ) \
goto error; \
if( i_size ) { \
char *psz = malloc( i_size ); \
if( fread( psz, i_size, 1, file ) != 1 ) { \
free( psz ); \
goto error; \
} \
if( psz[i_size-1] ) { \
free( psz ); \
goto error; \
} \
a = psz; \
} \
}
for( i = 0; i < i_cache; i++ )
{
uint16_t i_size;
int i_submodules;
pp_cache[i] = malloc( sizeof(module_cache_t) );
p_libvlc_global->p_module_bank->i_loaded_cache++;
/* Load common info */
LOAD_STRING( pp_cache[i]->psz_file );
LOAD_IMMEDIATE( pp_cache[i]->i_time );
LOAD_IMMEDIATE( pp_cache[i]->i_size );
LOAD_IMMEDIATE( pp_cache[i]->b_junk );
pp_cache[i]->b_used = VLC_FALSE;
if( pp_cache[i]->b_junk ) continue;
pp_cache[i]->p_module = vlc_module_create( p_this );
/* Load additional infos */
LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
LOAD_STRING( pp_cache[i]->p_module->psz_longname );
LOAD_STRING( pp_cache[i]->p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
}
LOAD_STRING( pp_cache[i]->p_module->psz_capability );
LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
/* Config stuff */
if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
goto error;
LOAD_STRING( pp_cache[i]->p_module->psz_filename );
LOAD_IMMEDIATE( i_submodules );
while( i_submodules-- )
{
module_t *p_module = vlc_submodule_create( pp_cache[i]->p_module );
LOAD_STRING( p_module->psz_object_name );
LOAD_STRING( p_module->psz_shortname );
LOAD_STRING( p_module->psz_longname );
LOAD_STRING( p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
}
LOAD_STRING( p_module->psz_capability );
LOAD_IMMEDIATE( p_module->i_score );
LOAD_IMMEDIATE( p_module->i_cpu );
LOAD_IMMEDIATE( p_module->b_unloadable );
LOAD_IMMEDIATE( p_module->b_reentrant );
}
}
fclose( file );
return;
error:
msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
/* TODO: cleanup */
p_libvlc_global->p_module_bank->i_loaded_cache = 0;
fclose( file );
return;
}
static int CacheLoadConfig( module_t *p_module, FILE *file )
{
uint32_t i_lines;
uint16_t i_size;
/* Calculate the structure length */
LOAD_IMMEDIATE( p_module->i_config_items );
LOAD_IMMEDIATE( p_module->i_bool_items );
LOAD_IMMEDIATE( i_lines );
/* Allocate memory */
if (i_lines)
{
p_module->p_config =
(module_config_t *)calloc( i_lines, sizeof(module_config_t) );
if( p_module->p_config == NULL )
{
p_module->confsize = 0;
msg_Err( p_module, "config error: can't duplicate p_config" );
return VLC_ENOMEM;
}
}
p_module->confsize = i_lines;
/* Do the duplication job */
for (size_t i = 0; i < i_lines; i++ )
{
LOAD_IMMEDIATE( p_module->p_config[i] );
LOAD_STRING( p_module->p_config[i].psz_type );
LOAD_STRING( p_module->p_config[i].psz_name );
LOAD_STRING( p_module->p_config[i].psz_text );
LOAD_STRING( p_module->p_config[i].psz_longtext );
LOAD_STRING( p_module->p_config[i].psz_current );
if (IsConfigStringType (p_module->p_config[i].i_type))
{
LOAD_STRING (p_module->p_config[i].orig.psz);
p_module->p_config[i].value.psz =
(p_module->p_config[i].orig.psz != NULL)
? strdup (p_module->p_config[i].orig.psz) : NULL;
p_module->p_config[i].saved.psz = NULL;
}
else
{
memcpy (&p_module->p_config[i].value, &p_module->p_config[i].orig,
sizeof (p_module->p_config[i].value));
memcpy (&p_module->p_config[i].saved, &p_module->p_config[i].orig,
sizeof (p_module->p_config[i].saved));
}
p_module->p_config[i].b_dirty = VLC_FALSE;
p_module->p_config[i].p_lock = &p_module->object_lock;
if( p_module->p_config[i].i_list )
{
if( p_module->p_config[i].ppsz_list )
{
int j;
p_module->p_config[i].ppsz_list =
malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
if( p_module->p_config[i].ppsz_list )
{
for( j = 0; j < p_module->p_config[i].i_list; j++ )
LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
p_module->p_config[i].ppsz_list[j] = NULL;
}
}
if( p_module->p_config[i].ppsz_list_text )
{
int j;
p_module->p_config[i].ppsz_list_text =
malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
if( p_module->p_config[i].ppsz_list_text )
{
for( j = 0; j < p_module->p_config[i].i_list; j++ )
LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
p_module->p_config[i].ppsz_list_text[j] = NULL;
}
}
if( p_module->p_config[i].pi_list )
{
p_module->p_config[i].pi_list =
malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
if( p_module->p_config[i].pi_list )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
}
}
}
if( p_module->p_config[i].i_action )
{
p_module->p_config[i].ppf_action =
malloc( p_module->p_config[i].i_action * sizeof(void *) );
p_module->p_config[i].ppsz_action_text =
malloc( p_module->p_config[i].i_action * sizeof(char *) );
for (int j = 0; j < p_module->p_config[i].i_action; j++)
{
p_module->p_config[i].ppf_action[j] = 0;
LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
}
}
LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
}
return VLC_SUCCESS;
error:
return VLC_EGENERIC;
}
/*****************************************************************************
* SavePluginsCache: saves the plugins cache to a file
*****************************************************************************/
void CacheSave( vlc_object_t *p_this )
{
static char const psz_tag[] =
"Signature: 8a477f597d28d172789f06886806bc55\r\n"
"# This file is a cache directory tag created by VLC.\r\n"
"# For information about cache directory tags, see:\r\n"
"# http://www.brynosaurus.com/cachedir/\r\n";
char *psz_cachedir;
FILE *file;
int i, j, i_cache;
module_cache_t **pp_cache;
int32_t i_file_size = 0;
libvlc_global_data_t *p_libvlc_global = vlc_global();
psz_cachedir = p_this->p_libvlc->psz_cachedir;
if( !psz_cachedir ) /* XXX: this should never happen */
{
msg_Err( p_this, "Unable to get cache directory" );
return;
}
char psz_filename[sizeof(DIR_SEP) + 32 + strlen(psz_cachedir)];
config_CreateDir( p_this, psz_cachedir );
snprintf( psz_filename, sizeof( psz_filename ),
"%s"DIR_SEP"CACHEDIR.TAG", psz_cachedir );
file = utf8_fopen( psz_filename, "wb" );
if( file )
{
fwrite( psz_tag, 1, strlen(psz_tag), file );
fclose( file );
}
snprintf( psz_filename, sizeof( psz_filename ),
"%s"DIR_SEP"%s", psz_cachedir, CacheName() );
msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
file = utf8_fopen( psz_filename, "wb" );
if( !file )
{
msg_Warn( p_this, "could not open plugins cache file %s for writing",
psz_filename );
return;
}
/* Empty space for file size */
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
/* Contains version number */
fprintf( file, "%s", "cache " COPYRIGHT_MESSAGE );
/* Sub-version number (to avoid breakage in the dev version when cache
* structure changes) */
i_file_size = CACHE_SUBVERSION_NUM;
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
/* Language */
fprintf( file, "%5.5s", _("C") );
/* Header marker */
i_file_size = ftell( file );
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
i_cache = p_libvlc_global->p_module_bank->i_cache;
pp_cache = p_libvlc_global->p_module_bank->pp_cache;
fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
#define SAVE_IMMEDIATE(a) \
fwrite( &a, sizeof(char), sizeof(a), file )
#define SAVE_STRING(a) \
{ i_size = a ? strlen( a ) + 1 : 0; \
fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
if( a ) fwrite( a, sizeof(char), i_size, file ); \
} while(0)
for( i = 0; i < i_cache; i++ )
{
uint16_t i_size;
uint32_t i_submodule;
/* Save common info */
SAVE_STRING( pp_cache[i]->psz_file );
SAVE_IMMEDIATE( pp_cache[i]->i_time );
SAVE_IMMEDIATE( pp_cache[i]->i_size );
SAVE_IMMEDIATE( pp_cache[i]->b_junk );
if( pp_cache[i]->b_junk ) continue;
/* Save additional infos */
SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
SAVE_STRING( pp_cache[i]->p_module->psz_longname );
SAVE_STRING( pp_cache[i]->p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
}
SAVE_STRING( pp_cache[i]->p_module->psz_capability );
SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
/* Config stuff */
CacheSaveConfig( pp_cache[i]->p_module, file );
SAVE_STRING( pp_cache[i]->p_module->psz_filename );
i_submodule = pp_cache[i]->p_module->i_children;
SAVE_IMMEDIATE( i_submodule );
for( i_submodule = 0;
i_submodule < (unsigned)pp_cache[i]->p_module->i_children;
i_submodule++ )
{
module_t *p_module =
(module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
SAVE_STRING( p_module->psz_object_name );
SAVE_STRING( p_module->psz_shortname );
SAVE_STRING( p_module->psz_longname );
SAVE_STRING( p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
}
SAVE_STRING( p_module->psz_capability );
SAVE_IMMEDIATE( p_module->i_score );
SAVE_IMMEDIATE( p_module->i_cpu );
SAVE_IMMEDIATE( p_module->b_unloadable );
SAVE_IMMEDIATE( p_module->b_reentrant );
}
}
/* Fill-up file size */
i_file_size = ftell( file );
fseek( file, 0, SEEK_SET );
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
fclose( file );
}
static void CacheSaveConfig( module_t *p_module, FILE *file )
{
uint32_t i_lines = p_module->confsize;
uint16_t i_size;
SAVE_IMMEDIATE( p_module->i_config_items );
SAVE_IMMEDIATE( p_module->i_bool_items );
SAVE_IMMEDIATE( i_lines );
for (size_t i = 0; i < i_lines ; i++)
{
SAVE_IMMEDIATE( p_module->p_config[i] );
SAVE_STRING( p_module->p_config[i].psz_type );
SAVE_STRING( p_module->p_config[i].psz_name );
SAVE_STRING( p_module->p_config[i].psz_text );
SAVE_STRING( p_module->p_config[i].psz_longtext );
SAVE_STRING( p_module->p_config[i].psz_current );
if (IsConfigStringType (p_module->p_config[i].i_type))
SAVE_STRING( p_module->p_config[i].orig.psz );
if( p_module->p_config[i].i_list )
{
if( p_module->p_config[i].ppsz_list )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
}
if( p_module->p_config[i].ppsz_list_text )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
}
if( p_module->p_config[i].pi_list )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
}
}
for (int j = 0; j < p_module->p_config[i].i_action; j++)
SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
}
}
/*****************************************************************************
* CacheName: Return the cache file name for this platform.
*****************************************************************************/
static char *CacheName( void )
{
static char psz_cachename[32];
/* Code int size, pointer size and endianness in the filename */
int32_t x = 0xbe00001e;
sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", (int)sizeof(int),
(int)sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
return psz_cachename;
}
/*****************************************************************************
* CacheMerge: Merge a cache module descriptor with a full module descriptor.
*****************************************************************************/
void CacheMerge( vlc_object_t *p_this, module_t *p_cache, module_t *p_module )
{
int i_submodule;
(void)p_this;
p_cache->pf_activate = p_module->pf_activate;
p_cache->pf_deactivate = p_module->pf_deactivate;
p_cache->handle = p_module->handle;
for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
{
module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
p_cchild->pf_activate = p_child->pf_activate;
p_cchild->pf_deactivate = p_child->pf_deactivate;
}
p_cache->b_loaded = VLC_TRUE;
p_module->b_loaded = VLC_FALSE;
}
/*****************************************************************************
* CacheFind: finds the cache entry corresponding to a file
*****************************************************************************/
module_cache_t *CacheFind( vlc_object_t *p_this, const char *psz_file,
int64_t i_time, int64_t i_size )
{
module_cache_t **pp_cache;
int i_cache, i;
libvlc_global_data_t *p_libvlc_global = vlc_global();
pp_cache = p_libvlc_global->p_module_bank->pp_loaded_cache;
i_cache = p_libvlc_global->p_module_bank->i_loaded_cache;
for( i = 0; i < i_cache; i++ )
{
if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
pp_cache[i]->i_time == i_time &&
pp_cache[i]->i_size == i_size ) return pp_cache[i];
}
return NULL;
}
#endif /* HAVE_DYNAMIC_PLUGINS */
src/modules/modules.c
View file @ e03e85ca
......@@ -25,7 +25,7 @@
*****************************************************************************/
#include <vlc/vlc.h>
#include "../libvlc.h"
#include "libvlc.h"
/* Some faulty libcs have a broken struct dirent when _FILE_OFFSET_BITS
* is set to 64. Don't try to be cleverer. */
......@@ -77,18 +77,12 @@
#endif
#include "config/config.h"
#include "libvlc.h"
#include "vlc_charset.h"
#include "modules/modules.h"
#include "modules/builtin.h"
#if defined( WIN32 ) || defined( UNDER_CE )
/* Avoid name collisions */
# define LoadModule(a,b,c) LoadVlcModule(a,b,c)
#endif
/*****************************************************************************
* Local prototypes
*****************************************************************************/
......@@ -103,29 +97,10 @@ static int DeleteModule ( module_t *, vlc_bool_t );
#ifdef HAVE_DYNAMIC_PLUGINS
static void DupModule ( module_t * );
static void UndupModule ( module_t * );
static int CallEntry ( module_t * );
static int LoadModule ( vlc_object_t *, char *, module_handle_t * );
static void CloseModule ( module_handle_t );
static void * GetSymbol ( module_handle_t, const char * );
static void CacheLoad ( vlc_object_t * );
static int CacheLoadConfig ( module_t *, FILE * );
static void CacheSave ( vlc_object_t * );
static void CacheSaveConfig ( module_t *, FILE * );
static char * CacheName ( void );
static void CacheMerge ( vlc_object_t *, module_t *, module_t * );
static module_cache_t * CacheFind( vlc_object_t *, char *, int64_t, int64_t );
#if defined(HAVE_DL_WINDOWS)
static char * GetWindowsError ( void );
#endif
#endif
static void module_LoadMain( vlc_object_t *p_this );
/* Sub-version number
* (only used to avoid breakage in dev version when cache structure changes) */
#define CACHE_SUBVERSION_NUM 3
/*****************************************************************************
* module_InitBank: create the module bank.
*****************************************************************************
......@@ -1153,7 +1128,7 @@ static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
module_t * p_module = NULL;
module_handle_t handle;
if( LoadModule( p_this, psz_file, &handle ) )
if( module_Load( p_this, psz_file, &handle ) )
return NULL;
/* Now that we have successfully loaded the module, we can
......@@ -1162,21 +1137,21 @@ static module_t * AllocatePlugin( vlc_object_t * p_this, char * psz_file )
if( p_module == NULL )
{
msg_Err( p_this, "out of memory" );
CloseModule( handle );
module_Unload( handle );
return NULL;
}
/* We need to fill these since they may be needed by CallEntry() */
/* We need to fill these since they may be needed by module_Call() */
p_module->psz_filename = psz_file;
p_module->handle = handle;
p_module->b_loaded = VLC_TRUE;
/* Initialize the module: fill p_module, default config */
if( CallEntry( p_module ) != 0 )
if( module_Call( p_module ) != 0 )
{
/* We couldn't call module_init() */
vlc_object_destroy( p_module );
CloseModule( handle );
module_Unload( handle );
return NULL;
}
......@@ -1309,7 +1284,7 @@ static int DeleteModule( module_t * p_module, vlc_bool_t b_detach )
{
if( p_module->b_loaded && p_module->b_unloadable )
{
CloseModule( p_module->handle );
module_Unload( p_module->handle );
}
UndupModule( p_module );
free( p_module->psz_filename );
......@@ -1329,914 +1304,3 @@ static int DeleteModule( module_t * p_module, vlc_bool_t b_detach )
p_module = NULL;
return 0;
}
#ifdef HAVE_DYNAMIC_PLUGINS
/*****************************************************************************
* CallEntry: call an entry point.
*****************************************************************************
* This function calls a symbol given its name and a module structure. The
* symbol MUST refer to a function returning int and taking a module_t* as
* an argument.
*****************************************************************************/
static int CallEntry( module_t * p_module )
{
static const char psz_name[] = "vlc_entry" MODULE_SUFFIX;
int (* pf_symbol) ( module_t * p_module );
/* Try to resolve the symbol */
pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
if( pf_symbol == NULL )
{
#if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
psz_name, p_module->psz_filename );
#elif defined(HAVE_DL_WINDOWS)
char *psz_error = GetWindowsError();
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
psz_name, p_module->psz_filename, psz_error );
free( psz_error );
#elif defined(HAVE_DL_DLOPEN)
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
psz_name, p_module->psz_filename, dlerror() );
#elif defined(HAVE_DL_SHL_LOAD)
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%m)",
psz_name, p_module->psz_filename );
#else
# error "Something is wrong in modules.c"
#endif
return -1;
}
/* We can now try to call the symbol */
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. */
msg_Err( p_module, "Failed to call symbol \"%s\" in file `%s'",
psz_name, p_module->psz_filename );
return -1;
}
/* Everything worked fine, we can return */
return 0;
}
/*****************************************************************************
* LoadModule: loads a dynamic library
*****************************************************************************
* This function loads a dynamically linked library using a system dependant
* method. Will return 0 on success as well as the module handle.
*****************************************************************************/
static int LoadModule( vlc_object_t *p_this, char *psz_file,
module_handle_t *p_handle )
{
module_handle_t handle;
#if defined(HAVE_DL_DYLD)
NSObjectFileImage image;
NSObjectFileImageReturnCode ret;
ret = NSCreateObjectFileImageFromFile( psz_file, &image );
if( ret != NSObjectFileImageSuccess )
{
msg_Warn( p_this, "cannot create image from `%s'", psz_file );
return -1;
}
/* Open the dynamic module */
handle = NSLinkModule( image, psz_file,
NSLINKMODULE_OPTION_RETURN_ON_ERROR );
if( !handle )
{
NSLinkEditErrors errors;
const char *psz_file, *psz_err;
int i_errnum;
NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
NSDestroyObjectFileImage( image );
return -1;
}
/* Destroy our image, we won't need it */
NSDestroyObjectFileImage( image );
#elif defined(HAVE_DL_BEOS)
handle = load_add_on( psz_file );
if( handle < 0 )
{
msg_Warn( p_this, "cannot load module `%s'", psz_file );
return -1;
}
#elif defined(HAVE_DL_WINDOWS)
#ifdef UNDER_CE
{
wchar_t psz_wfile[MAX_PATH];
MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
handle = LoadLibrary( psz_wfile );
}
#else
handle = LoadLibrary( psz_file );
#endif
if( handle == NULL )
{
char *psz_err = GetWindowsError();
msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
free( psz_err );
return -1;
}
#elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
/* static is OK, we are called atomically */
handle = dlopen( psz_file, RTLD_NOW );
if( handle == NULL )
{
msg_Warn( p_this, "cannot load module `%s' (%s)",
psz_file, dlerror() );
return -1;
}
#elif defined(HAVE_DL_DLOPEN)
# if defined(DL_LAZY)
handle = dlopen( psz_file, DL_LAZY );
# else
handle = dlopen( psz_file, 0 );
# endif
if( handle == NULL )
{
msg_Warn( p_this, "cannot load module `%s' (%s)",
psz_file, dlerror() );
return -1;
}
#elif defined(HAVE_DL_SHL_LOAD)
handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
if( handle == NULL )
{
msg_Warn( p_this, "cannot load module `%s' (%m)", psz_file );
return -1;
}
#else
# error "Something is wrong in modules.c"
#endif
*p_handle = handle;
return 0;
}
/*****************************************************************************
* CloseModule: unload a dynamic library
*****************************************************************************
* This function unloads a previously opened dynamically linked library
* using a system dependant method. No return value is taken in consideration,
* since some libraries sometimes refuse to close properly.
*****************************************************************************/
static void CloseModule( module_handle_t handle )
{
#if defined(HAVE_DL_DYLD)
NSUnLinkModule( handle, FALSE );
#elif defined(HAVE_DL_BEOS)
unload_add_on( handle );
#elif defined(HAVE_DL_WINDOWS)
FreeLibrary( handle );
#elif defined(HAVE_DL_DLOPEN)
# ifdef NDEBUG
dlclose( handle );
# endif
#elif defined(HAVE_DL_SHL_LOAD)
shl_unload( handle );
#endif
return;
}
/*****************************************************************************
* GetSymbol: get a symbol from a dynamic library
*****************************************************************************
* This function queries a loaded library for a symbol specified in a
* string, and returns a pointer to it. We don't check for dlerror() or
* similar functions, since we want a non-NULL symbol anyway.
*****************************************************************************/
static void * _module_getsymbol( module_handle_t, const char * );
static void * GetSymbol( module_handle_t handle, const char * psz_function )
{
void * p_symbol = _module_getsymbol( handle, psz_function );
/* MacOS X dl library expects symbols to begin with "_". So do
* some other operating systems. That's really lame, but hey, what
* can we do ? */
if( p_symbol == NULL )
{
char psz_call[strlen( psz_function ) + 2];
psz_call[ 0 ] = '_';
memcpy( psz_call + 1, psz_function, sizeof (psz_call) - 1 );
p_symbol = _module_getsymbol( handle, psz_call );
}
return p_symbol;
}
static void * _module_getsymbol( module_handle_t handle,
const char * psz_function )
{
#if defined(HAVE_DL_DYLD)
NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
return NSAddressOfSymbol( sym );
#elif defined(HAVE_DL_BEOS)
void * p_symbol;
if( B_OK == get_image_symbol( handle, psz_function,
B_SYMBOL_TYPE_TEXT, &p_symbol ) )
{
return p_symbol;
}
else
{
return NULL;
}
#elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
wchar_t psz_real[256];
MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
return (void *)GetProcAddress( handle, psz_real );
#elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
return (void *)GetProcAddress( handle, (char *)psz_function );
#elif defined(HAVE_DL_DLOPEN)
return dlsym( handle, psz_function );
#elif defined(HAVE_DL_SHL_LOAD)
void *p_sym;
shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
return p_sym;
#endif
}
#if defined(HAVE_DL_WINDOWS)
static char * GetWindowsError( void )
{
#if defined(UNDER_CE)
wchar_t psz_tmp[MAX_PATH];
char * psz_buffer = malloc( MAX_PATH );
#else
char * psz_tmp = malloc( MAX_PATH );
#endif
int i = 0, i_error = GetLastError();
FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)psz_tmp, MAX_PATH, NULL );
/* Go to the end of the string */
while( psz_tmp[i] && psz_tmp[i] != _T('\r') && psz_tmp[i] != _T('\n') )
{
i++;
}
if( psz_tmp[i] )
{
#if defined(UNDER_CE)
swprintf( psz_tmp + i, L" (error %i)", i_error );
psz_tmp[ 255 ] = L'\0';
#else
snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
psz_tmp[ 255 ] = '\0';
#endif
}
#if defined(UNDER_CE)
wcstombs( psz_buffer, psz_tmp, MAX_PATH );
return psz_buffer;
#else
return psz_tmp;
#endif
}
#endif /* HAVE_DL_WINDOWS */
/*****************************************************************************
* LoadPluginsCache: loads the plugins cache file
*****************************************************************************
* This function will load the plugin cache if present and valid. This cache
* will in turn be queried by AllocateAllPlugins() to see if it needs to
* actually load the dynamically loadable module.
* This allows us to only fully load plugins when they are actually used.
*****************************************************************************/
static void CacheLoad( vlc_object_t *p_this )
{
char *psz_filename, *psz_cachedir;
FILE *file;
int i, j, i_size, i_read;
char p_cachestring[sizeof("cache " COPYRIGHT_MESSAGE)];
char p_cachelang[6], p_lang[6];
int i_cache;
module_cache_t **pp_cache = 0;
int32_t i_file_size, i_marker;
libvlc_global_data_t *p_libvlc_global = vlc_global();
psz_cachedir = p_this->p_libvlc->psz_cachedir;
if( !psz_cachedir ) /* XXX: this should never happen */
{
msg_Err( p_this, "Unable to get cache directory" );
return;
}
i_size = asprintf( &psz_filename, "%s"DIR_SEP"%s",
psz_cachedir, CacheName() );
if( i_size <= 0 )
{
msg_Err( p_this, "out of memory" );
return;
}
if( p_libvlc_global->p_module_bank->b_cache_delete )
{
#if !defined( UNDER_CE )
unlink( psz_filename );
#else
wchar_t psz_wf[MAX_PATH];
MultiByteToWideChar( CP_ACP, 0, psz_filename, -1, psz_wf, MAX_PATH );
DeleteFile( psz_wf );
#endif
msg_Dbg( p_this, "removing plugins cache file %s", psz_filename );
free( psz_filename );
return;
}
msg_Dbg( p_this, "loading plugins cache file %s", psz_filename );
file = utf8_fopen( psz_filename, "rb" );
if( !file )
{
msg_Warn( p_this, "could not open plugins cache file %s for reading",
psz_filename );
free( psz_filename );
return;
}
free( psz_filename );
/* Check the file size */
i_read = fread( &i_file_size, 1, sizeof(i_file_size), file );
if( i_read != sizeof(i_file_size) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(too short)" );
fclose( file );
return;
}
fseek( file, 0, SEEK_END );
if( ftell( file ) != i_file_size )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(corrupted size)" );
fclose( file );
return;
}
fseek( file, sizeof(i_file_size), SEEK_SET );
/* Check the file is a plugins cache */
i_size = sizeof("cache " COPYRIGHT_MESSAGE) - 1;
i_read = fread( p_cachestring, 1, i_size, file );
if( i_read != i_size ||
memcmp( p_cachestring, "cache " COPYRIGHT_MESSAGE, i_size ) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache" );
fclose( file );
return;
}
/* Check Sub-version number */
i_read = fread( &i_marker, 1, sizeof(i_marker), file );
if( i_read != sizeof(i_marker) || i_marker != CACHE_SUBVERSION_NUM )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(corrupted header)" );
fclose( file );
return;
}
/* Check the language hasn't changed */
sprintf( p_lang, "%5.5s", _("C") ); i_size = 5;
i_read = fread( p_cachelang, 1, i_size, file );
if( i_read != i_size || memcmp( p_cachelang, p_lang, i_size ) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(language changed)" );
fclose( file );
return;
}
/* Check header marker */
i_read = fread( &i_marker, 1, sizeof(i_marker), file );
if( i_read != sizeof(i_marker) ||
i_marker != ftell( file ) - (int)sizeof(i_marker) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(corrupted header)" );
fclose( file );
return;
}
p_libvlc_global->p_module_bank->i_loaded_cache = 0;
if (fread( &i_cache, 1, sizeof(i_cache), file ) != sizeof(i_cache) )
{
msg_Warn( p_this, "This doesn't look like a valid plugins cache "
"(file too short)" );
fclose( file );
return;
}
if( i_cache )
pp_cache = p_libvlc_global->p_module_bank->pp_loaded_cache =
malloc( i_cache * sizeof(void *) );
#define LOAD_IMMEDIATE(a) \
if( fread( (void *)&a, sizeof(char), sizeof(a), file ) != sizeof(a) ) goto error
#define LOAD_STRING(a) \
{ \
a = NULL; \
if( ( fread( &i_size, sizeof(i_size), 1, file ) != 1 ) \
|| ( i_size > 16384 ) ) \
goto error; \
if( i_size ) { \
char *psz = malloc( i_size ); \
if( fread( psz, i_size, 1, file ) != 1 ) { \
free( psz ); \
goto error; \
} \
if( psz[i_size-1] ) { \
free( psz ); \
goto error; \
} \
a = psz; \
} \
}
for( i = 0; i < i_cache; i++ )
{
uint16_t i_size;
int i_submodules;
pp_cache[i] = malloc( sizeof(module_cache_t) );
p_libvlc_global->p_module_bank->i_loaded_cache++;
/* Load common info */
LOAD_STRING( pp_cache[i]->psz_file );
LOAD_IMMEDIATE( pp_cache[i]->i_time );
LOAD_IMMEDIATE( pp_cache[i]->i_size );
LOAD_IMMEDIATE( pp_cache[i]->b_junk );
pp_cache[i]->b_used = VLC_FALSE;
if( pp_cache[i]->b_junk ) continue;
pp_cache[i]->p_module = vlc_module_create( p_this );
/* Load additional infos */
LOAD_STRING( pp_cache[i]->p_module->psz_object_name );
LOAD_STRING( pp_cache[i]->p_module->psz_shortname );
LOAD_STRING( pp_cache[i]->p_module->psz_longname );
LOAD_STRING( pp_cache[i]->p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
LOAD_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
}
LOAD_STRING( pp_cache[i]->p_module->psz_capability );
LOAD_IMMEDIATE( pp_cache[i]->p_module->i_score );
LOAD_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
LOAD_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
LOAD_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
LOAD_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
/* Config stuff */
if( CacheLoadConfig( pp_cache[i]->p_module, file ) != VLC_SUCCESS )
goto error;
LOAD_STRING( pp_cache[i]->p_module->psz_filename );
LOAD_IMMEDIATE( i_submodules );
while( i_submodules-- )
{
module_t *p_module = vlc_submodule_create( pp_cache[i]->p_module );
LOAD_STRING( p_module->psz_object_name );
LOAD_STRING( p_module->psz_shortname );
LOAD_STRING( p_module->psz_longname );
LOAD_STRING( p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
LOAD_STRING( p_module->pp_shortcuts[j] ); // FIX
}
LOAD_STRING( p_module->psz_capability );
LOAD_IMMEDIATE( p_module->i_score );
LOAD_IMMEDIATE( p_module->i_cpu );
LOAD_IMMEDIATE( p_module->b_unloadable );
LOAD_IMMEDIATE( p_module->b_reentrant );
}
}
fclose( file );
return;
error:
msg_Warn( p_this, "plugins cache not loaded (corrupted)" );
/* TODO: cleanup */
p_libvlc_global->p_module_bank->i_loaded_cache = 0;
fclose( file );
return;
}
int CacheLoadConfig( module_t *p_module, FILE *file )
{
uint32_t i_lines;
uint16_t i_size;
/* Calculate the structure length */
LOAD_IMMEDIATE( p_module->i_config_items );
LOAD_IMMEDIATE( p_module->i_bool_items );
LOAD_IMMEDIATE( i_lines );
/* Allocate memory */
if (i_lines)
{
p_module->p_config =
(module_config_t *)calloc( i_lines, sizeof(module_config_t) );
if( p_module->p_config == NULL )
{
p_module->confsize = 0;
msg_Err( p_module, "config error: can't duplicate p_config" );
return VLC_ENOMEM;
}
}
p_module->confsize = i_lines;
/* Do the duplication job */
for (size_t i = 0; i < i_lines; i++ )
{
LOAD_IMMEDIATE( p_module->p_config[i] );
LOAD_STRING( p_module->p_config[i].psz_type );
LOAD_STRING( p_module->p_config[i].psz_name );
LOAD_STRING( p_module->p_config[i].psz_text );
LOAD_STRING( p_module->p_config[i].psz_longtext );
LOAD_STRING( p_module->p_config[i].psz_current );
if (IsConfigStringType (p_module->p_config[i].i_type))
{
LOAD_STRING (p_module->p_config[i].orig.psz);
p_module->p_config[i].value.psz =
(p_module->p_config[i].orig.psz != NULL)
? strdup (p_module->p_config[i].orig.psz) : NULL;
p_module->p_config[i].saved.psz = NULL;
}
else
{
memcpy (&p_module->p_config[i].value, &p_module->p_config[i].orig,
sizeof (p_module->p_config[i].value));
memcpy (&p_module->p_config[i].saved, &p_module->p_config[i].orig,
sizeof (p_module->p_config[i].saved));
}
p_module->p_config[i].b_dirty = VLC_FALSE;
p_module->p_config[i].p_lock = &p_module->object_lock;
if( p_module->p_config[i].i_list )
{
if( p_module->p_config[i].ppsz_list )
{
int j;
p_module->p_config[i].ppsz_list =
malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
if( p_module->p_config[i].ppsz_list )
{
for( j = 0; j < p_module->p_config[i].i_list; j++ )
LOAD_STRING( p_module->p_config[i].ppsz_list[j] );
p_module->p_config[i].ppsz_list[j] = NULL;
}
}
if( p_module->p_config[i].ppsz_list_text )
{
int j;
p_module->p_config[i].ppsz_list_text =
malloc( (p_module->p_config[i].i_list+1) * sizeof(char *));
if( p_module->p_config[i].ppsz_list_text )
{
for( j = 0; j < p_module->p_config[i].i_list; j++ )
LOAD_STRING( p_module->p_config[i].ppsz_list_text[j] );
p_module->p_config[i].ppsz_list_text[j] = NULL;
}
}
if( p_module->p_config[i].pi_list )
{
p_module->p_config[i].pi_list =
malloc( (p_module->p_config[i].i_list + 1) * sizeof(int) );
if( p_module->p_config[i].pi_list )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
LOAD_IMMEDIATE( p_module->p_config[i].pi_list[j] );
}
}
}
if( p_module->p_config[i].i_action )
{
p_module->p_config[i].ppf_action =
malloc( p_module->p_config[i].i_action * sizeof(void *) );
p_module->p_config[i].ppsz_action_text =
malloc( p_module->p_config[i].i_action * sizeof(char *) );
for (int j = 0; j < p_module->p_config[i].i_action; j++)
{
p_module->p_config[i].ppf_action[j] = 0;
LOAD_STRING( p_module->p_config[i].ppsz_action_text[j] );
}
}
LOAD_IMMEDIATE( p_module->p_config[i].pf_callback );
}
return VLC_SUCCESS;
error:
return VLC_EGENERIC;
}
/*****************************************************************************
* SavePluginsCache: saves the plugins cache to a file
*****************************************************************************/
static void CacheSave( vlc_object_t *p_this )
{
static char const psz_tag[] =
"Signature: 8a477f597d28d172789f06886806bc55\r\n"
"# This file is a cache directory tag created by VLC.\r\n"
"# For information about cache directory tags, see:\r\n"
"# http://www.brynosaurus.com/cachedir/\r\n";
char *psz_cachedir;
size_t i_len = 0;
FILE *file;
int i, j, i_cache;
module_cache_t **pp_cache;
int32_t i_file_size = 0;
libvlc_global_data_t *p_libvlc_global = vlc_global();
psz_cachedir = p_this->p_libvlc->psz_cachedir;
if( !psz_cachedir ) /* XXX: this should never happen */
{
msg_Err( p_this, "Unable to get cache directory" );
return;
}
char psz_filename[sizeof(DIR_SEP) + 32 + strlen(psz_cachedir)];
config_CreateDir( p_this, psz_cachedir );
snprintf( psz_filename, sizeof( psz_filename ),
"%s"DIR_SEP"CACHEDIR.TAG", psz_cachedir );
file = utf8_fopen( psz_filename, "wb" );
if( file )
{
fwrite( psz_tag, 1, strlen(psz_tag), file );
fclose( file );
}
snprintf( psz_filename, sizeof( psz_filename ),
"%s"DIR_SEP"%s", psz_cachedir, CacheName() );
msg_Dbg( p_this, "saving plugins cache file %s", psz_filename );
file = utf8_fopen( psz_filename, "wb" );
if( !file )
{
msg_Warn( p_this, "could not open plugins cache file %s for writing",
psz_filename );
return;
}
/* Empty space for file size */
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
/* Contains version number */
fprintf( file, "%s", "cache " COPYRIGHT_MESSAGE );
/* Sub-version number (to avoid breakage in the dev version when cache
* structure changes) */
i_file_size = CACHE_SUBVERSION_NUM;
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
/* Language */
fprintf( file, "%5.5s", _("C") );
/* Header marker */
i_file_size = ftell( file );
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
i_cache = p_libvlc_global->p_module_bank->i_cache;
pp_cache = p_libvlc_global->p_module_bank->pp_cache;
fwrite( &i_cache, sizeof(char), sizeof(i_cache), file );
#define SAVE_IMMEDIATE(a) \
fwrite( &a, sizeof(char), sizeof(a), file )
#define SAVE_STRING(a) \
{ i_size = a ? strlen( a ) + 1 : 0; \
fwrite( &i_size, sizeof(char), sizeof(i_size), file ); \
if( a ) fwrite( a, sizeof(char), i_size, file ); \
} while(0)
for( i = 0; i < i_cache; i++ )
{
uint16_t i_size;
uint32_t i_submodule;
/* Save common info */
SAVE_STRING( pp_cache[i]->psz_file );
SAVE_IMMEDIATE( pp_cache[i]->i_time );
SAVE_IMMEDIATE( pp_cache[i]->i_size );
SAVE_IMMEDIATE( pp_cache[i]->b_junk );
if( pp_cache[i]->b_junk ) continue;
/* Save additional infos */
SAVE_STRING( pp_cache[i]->p_module->psz_object_name );
SAVE_STRING( pp_cache[i]->p_module->psz_shortname );
SAVE_STRING( pp_cache[i]->p_module->psz_longname );
SAVE_STRING( pp_cache[i]->p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
SAVE_STRING( pp_cache[i]->p_module->pp_shortcuts[j] ); // FIX
}
SAVE_STRING( pp_cache[i]->p_module->psz_capability );
SAVE_IMMEDIATE( pp_cache[i]->p_module->i_score );
SAVE_IMMEDIATE( pp_cache[i]->p_module->i_cpu );
SAVE_IMMEDIATE( pp_cache[i]->p_module->b_unloadable );
SAVE_IMMEDIATE( pp_cache[i]->p_module->b_reentrant );
SAVE_IMMEDIATE( pp_cache[i]->p_module->b_submodule );
/* Config stuff */
CacheSaveConfig( pp_cache[i]->p_module, file );
SAVE_STRING( pp_cache[i]->p_module->psz_filename );
i_submodule = pp_cache[i]->p_module->i_children;
SAVE_IMMEDIATE( i_submodule );
for( i_submodule = 0;
i_submodule < (unsigned)pp_cache[i]->p_module->i_children;
i_submodule++ )
{
module_t *p_module =
(module_t *)pp_cache[i]->p_module->pp_children[i_submodule];
SAVE_STRING( p_module->psz_object_name );
SAVE_STRING( p_module->psz_shortname );
SAVE_STRING( p_module->psz_longname );
SAVE_STRING( p_module->psz_help );
for( j = 0; j < MODULE_SHORTCUT_MAX; j++ )
{
SAVE_STRING( p_module->pp_shortcuts[j] ); // FIX
}
SAVE_STRING( p_module->psz_capability );
SAVE_IMMEDIATE( p_module->i_score );
SAVE_IMMEDIATE( p_module->i_cpu );
SAVE_IMMEDIATE( p_module->b_unloadable );
SAVE_IMMEDIATE( p_module->b_reentrant );
}
}
/* Fill-up file size */
i_file_size = ftell( file );
fseek( file, 0, SEEK_SET );
fwrite( &i_file_size, sizeof(char), sizeof(i_file_size), file );
fclose( file );
}
void CacheSaveConfig( module_t *p_module, FILE *file )
{
uint32_t i_lines = p_module->confsize;
uint16_t i_size;
SAVE_IMMEDIATE( p_module->i_config_items );
SAVE_IMMEDIATE( p_module->i_bool_items );
SAVE_IMMEDIATE( i_lines );
for (size_t i = 0; i < i_lines ; i++)
{
SAVE_IMMEDIATE( p_module->p_config[i] );
SAVE_STRING( p_module->p_config[i].psz_type );
SAVE_STRING( p_module->p_config[i].psz_name );
SAVE_STRING( p_module->p_config[i].psz_text );
SAVE_STRING( p_module->p_config[i].psz_longtext );
SAVE_STRING( p_module->p_config[i].psz_current );
if (IsConfigStringType (p_module->p_config[i].i_type))
SAVE_STRING( p_module->p_config[i].orig.psz );
if( p_module->p_config[i].i_list )
{
if( p_module->p_config[i].ppsz_list )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
SAVE_STRING( p_module->p_config[i].ppsz_list[j] );
}
if( p_module->p_config[i].ppsz_list_text )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
SAVE_STRING( p_module->p_config[i].ppsz_list_text[j] );
}
if( p_module->p_config[i].pi_list )
{
for (int j = 0; j < p_module->p_config[i].i_list; j++)
SAVE_IMMEDIATE( p_module->p_config[i].pi_list[j] );
}
}
for (int j = 0; j < p_module->p_config[i].i_action; j++)
SAVE_STRING( p_module->p_config[i].ppsz_action_text[j] );
SAVE_IMMEDIATE( p_module->p_config[i].pf_callback );
}
}
/*****************************************************************************
* CacheName: Return the cache file name for this platform.
*****************************************************************************/
static char *CacheName( void )
{
static char psz_cachename[32];
/* Code int size, pointer size and endianness in the filename */
int32_t x = 0xbe00001e;
sprintf( psz_cachename, "plugins-%.2x%.2x%.2x.dat", (int)sizeof(int),
(int)sizeof(void *), (unsigned int)((unsigned char *)&x)[0] );
return psz_cachename;
}
/*****************************************************************************
* CacheMerge: Merge a cache module descriptor with a full module descriptor.
*****************************************************************************/
static void CacheMerge( vlc_object_t *p_this, module_t *p_cache,
module_t *p_module )
{
int i_submodule;
(void)p_this;
p_cache->pf_activate = p_module->pf_activate;
p_cache->pf_deactivate = p_module->pf_deactivate;
p_cache->handle = p_module->handle;
for( i_submodule = 0; i_submodule < p_module->i_children; i_submodule++ )
{
module_t *p_child = (module_t*)p_module->pp_children[i_submodule];
module_t *p_cchild = (module_t*)p_cache->pp_children[i_submodule];
p_cchild->pf_activate = p_child->pf_activate;
p_cchild->pf_deactivate = p_child->pf_deactivate;
}
p_cache->b_loaded = VLC_TRUE;
p_module->b_loaded = VLC_FALSE;
}
/*****************************************************************************
* CacheFind: finds the cache entry corresponding to a file
*****************************************************************************/
static module_cache_t *CacheFind( vlc_object_t *p_this, char *psz_file,
int64_t i_time, int64_t i_size )
{
module_cache_t **pp_cache;
int i_cache, i;
libvlc_global_data_t *p_libvlc_global = vlc_global();
pp_cache = p_libvlc_global->p_module_bank->pp_loaded_cache;
i_cache = p_libvlc_global->p_module_bank->i_loaded_cache;
for( i = 0; i < i_cache; i++ )
{
if( !strcmp( pp_cache[i]->psz_file, psz_file ) &&
pp_cache[i]->i_time == i_time &&
pp_cache[i]->i_size == i_size ) return pp_cache[i];
}
return NULL;
}
#endif /* HAVE_DYNAMIC_PLUGINS */
src/modules/modules.h
View file @ e03e85ca
......@@ -161,4 +161,15 @@ void __module_EndBank ( vlc_object_t * );
#define module_ResetBank(a) __module_ResetBank(VLC_OBJECT(a))
void __module_ResetBank ( vlc_object_t * );
/* Low-level OS-dependant handler */
int module_Call (module_t *);
int module_Load (vlc_object_t *, const char *, module_handle_t *);
void module_Unload (module_handle_t);
/* Plugins cache */
void CacheMerge (vlc_object_t *, module_t *, module_t *);
void CacheLoad (vlc_object_t * );
void CacheSave (vlc_object_t * );
module_cache_t * CacheFind (vlc_object_t *, const char *, int64_t, int64_t);
#endif /* !__LIBVLC_MODULES_H */
src/modules/os.c 0 → 100644
View file @ e03e85ca
/*****************************************************************************
* os.c : Low-level dynamic library handling
*****************************************************************************
* Copyright (C) 2001-2007 the VideoLAN team
* $Id$
*
* Authors: Sam Hocevar <sam@zoy.org>
* Ethan C. Baldridge <BaldridgeE@cadmus.com>
* Hans-Peter Jansen <hpj@urpla.net>
* Gildas Bazin <gbazin@videolan.org>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include <vlc/vlc.h>
#include "libvlc.h"
#include "modules.h"
#include <stdlib.h> /* free(), strtol() */
#include <stdio.h> /* sprintf() */
#include <string.h> /* strdup() */
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if !defined(HAVE_DYNAMIC_PLUGINS)
/* no support for plugins */
#elif defined(HAVE_DL_DYLD)
# if defined(HAVE_MACH_O_DYLD_H)
# include <mach-o/dyld.h>
# endif
#elif defined(HAVE_DL_BEOS)
# if defined(HAVE_IMAGE_H)
# include <image.h>
# endif
#elif defined(HAVE_DL_WINDOWS)
# include <windows.h>
#elif defined(HAVE_DL_DLOPEN)
# if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
# include <dlfcn.h>
# endif
# if defined(HAVE_SYS_DL_H)
# include <sys/dl.h>
# endif
#elif defined(HAVE_DL_SHL_LOAD)
# if defined(HAVE_DL_H)
# include <dl.h>
# endif
#endif
//#include "config/config.h"
//#include "vlc_charset.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
#ifdef HAVE_DYNAMIC_PLUGINS
static void * GetSymbol ( module_handle_t, const char * );
#if defined(HAVE_DL_WINDOWS)
static char * GetWindowsError ( void );
#endif
/*****************************************************************************
* module_Call: call an entry point.
*****************************************************************************
* This function calls a symbol given its name and a module structure. The
* symbol MUST refer to a function returning int and taking a module_t* as
* an argument.
*****************************************************************************/
int module_Call( module_t * p_module )
{
static const char psz_name[] = "vlc_entry" MODULE_SUFFIX;
int (* pf_symbol) ( module_t * p_module );
/* Try to resolve the symbol */
pf_symbol = (int (*)(module_t *)) GetSymbol( p_module->handle, psz_name );
if( pf_symbol == NULL )
{
#if defined(HAVE_DL_DYLD) || defined(HAVE_DL_BEOS)
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s'",
psz_name, p_module->psz_filename );
#elif defined(HAVE_DL_WINDOWS)
char *psz_error = GetWindowsError();
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
psz_name, p_module->psz_filename, psz_error );
free( psz_error );
#elif defined(HAVE_DL_DLOPEN)
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%s)",
psz_name, p_module->psz_filename, dlerror() );
#elif defined(HAVE_DL_SHL_LOAD)
msg_Warn( p_module, "cannot find symbol \"%s\" in file `%s' (%m)",
psz_name, p_module->psz_filename );
#else
# error "Something is wrong in modules.c"
#endif
return -1;
}
/* We can now try to call the symbol */
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. */
msg_Err( p_module, "Failed to call symbol \"%s\" in file `%s'",
psz_name, p_module->psz_filename );
return -1;
}
/* Everything worked fine, we can return */
return 0;
}
/*****************************************************************************
* module_Load: loads a dynamic library
*****************************************************************************
* This function loads a dynamically linked library using a system dependant
* method. Will return 0 on success as well as the module handle.
*****************************************************************************/
int module_Load( vlc_object_t *p_this, const char *psz_file,
module_handle_t *p_handle )
{
module_handle_t handle;
#if defined(HAVE_DL_DYLD)
NSObjectFileImage image;
NSObjectFileImageReturnCode ret;
ret = NSCreateObjectFileImageFromFile( psz_file, &image );
if( ret != NSObjectFileImageSuccess )
{
msg_Warn( p_this, "cannot create image from `%s'", psz_file );
return -1;
}
/* Open the dynamic module */
handle = NSLinkModule( image, psz_file,
NSLINKMODULE_OPTION_RETURN_ON_ERROR );
if( !handle )
{
NSLinkEditErrors errors;
const char *psz_file, *psz_err;
int i_errnum;
NSLinkEditError( &errors, &i_errnum, &psz_file, &psz_err );
msg_Warn( p_this, "cannot link module `%s' (%s)", psz_file, psz_err );
NSDestroyObjectFileImage( image );
return -1;
}
/* Destroy our image, we won't need it */
NSDestroyObjectFileImage( image );
#elif defined(HAVE_DL_BEOS)
handle = load_add_on( psz_file );
if( handle < 0 )
{
msg_Warn( p_this, "cannot load module `%s'", psz_file );
return -1;
}
#elif defined(HAVE_DL_WINDOWS)
#ifdef UNDER_CE
{
wchar_t psz_wfile[MAX_PATH];
MultiByteToWideChar( CP_ACP, 0, psz_file, -1, psz_wfile, MAX_PATH );
handle = LoadLibrary( psz_wfile );
}
#else
handle = LoadLibrary( psz_file );
#endif
if( handle == NULL )
{
char *psz_err = GetWindowsError();
msg_Warn( p_this, "cannot load module `%s' (%s)", psz_file, psz_err );
free( psz_err );
return -1;
}
#elif defined(HAVE_DL_DLOPEN) && defined(RTLD_NOW)
/* static is OK, we are called atomically */
handle = dlopen( psz_file, RTLD_NOW );
if( handle == NULL )
{
msg_Warn( p_this, "cannot load module `%s' (%s)",
psz_file, dlerror() );
return -1;
}
#elif defined(HAVE_DL_DLOPEN)
# if defined(DL_LAZY)
handle = dlopen( psz_file, DL_LAZY );
# else
handle = dlopen( psz_file, 0 );
# endif
if( handle == NULL )
{
msg_Warn( p_this, "cannot load module `%s' (%s)",
psz_file, dlerror() );
return -1;
}
#elif defined(HAVE_DL_SHL_LOAD)
handle = shl_load( psz_file, BIND_IMMEDIATE | BIND_NONFATAL, NULL );
if( handle == NULL )
{
msg_Warn( p_this, "cannot load module `%s' (%m)", psz_file );
return -1;
}
#else
# error "Something is wrong in modules.c"
#endif
*p_handle = handle;
return 0;
}
/*****************************************************************************
* CloseModule: unload a dynamic library
*****************************************************************************
* This function unloads a previously opened dynamically linked library
* using a system dependant method. No return value is taken in consideration,
* since some libraries sometimes refuse to close properly.
*****************************************************************************/
void module_Unload( module_handle_t handle )
{
#if defined(HAVE_DL_DYLD)
NSUnLinkModule( handle, FALSE );
#elif defined(HAVE_DL_BEOS)
unload_add_on( handle );
#elif defined(HAVE_DL_WINDOWS)
FreeLibrary( handle );
#elif defined(HAVE_DL_DLOPEN)
# ifdef NDEBUG
dlclose( handle );
# endif
#elif defined(HAVE_DL_SHL_LOAD)
shl_unload( handle );
#endif
return;
}
/*****************************************************************************
* GetSymbol: get a symbol from a dynamic library
*****************************************************************************
* This function queries a loaded library for a symbol specified in a
* string, and returns a pointer to it. We don't check for dlerror() or
* similar functions, since we want a non-NULL symbol anyway.
*****************************************************************************/
static void * _module_getsymbol( module_handle_t, const char * );
static void * GetSymbol( module_handle_t handle, const char * psz_function )
{
void * p_symbol = _module_getsymbol( handle, psz_function );
/* MacOS X dl library expects symbols to begin with "_". So do
* some other operating systems. That's really lame, but hey, what
* can we do ? */
if( p_symbol == NULL )
{
char psz_call[strlen( psz_function ) + 2];
psz_call[ 0 ] = '_';
memcpy( psz_call + 1, psz_function, sizeof (psz_call) - 1 );
p_symbol = _module_getsymbol( handle, psz_call );
}
return p_symbol;
}
static void * _module_getsymbol( module_handle_t handle,
const char * psz_function )
{
#if defined(HAVE_DL_DYLD)
NSSymbol sym = NSLookupSymbolInModule( handle, psz_function );
return NSAddressOfSymbol( sym );
#elif defined(HAVE_DL_BEOS)
void * p_symbol;
if( B_OK == get_image_symbol( handle, psz_function,
B_SYMBOL_TYPE_TEXT, &p_symbol ) )
{
return p_symbol;
}
else
{
return NULL;
}
#elif defined(HAVE_DL_WINDOWS) && defined(UNDER_CE)
wchar_t psz_real[256];
MultiByteToWideChar( CP_ACP, 0, psz_function, -1, psz_real, 256 );
return (void *)GetProcAddress( handle, psz_real );
#elif defined(HAVE_DL_WINDOWS) && defined(WIN32)
return (void *)GetProcAddress( handle, (char *)psz_function );
#elif defined(HAVE_DL_DLOPEN)
return dlsym( handle, psz_function );
#elif defined(HAVE_DL_SHL_LOAD)
void *p_sym;
shl_findsym( &handle, psz_function, TYPE_UNDEFINED, &p_sym );
return p_sym;
#endif
}
#if defined(HAVE_DL_WINDOWS)
static char * GetWindowsError( void )
{
#if defined(UNDER_CE)
wchar_t psz_tmp[MAX_PATH];
char * psz_buffer = malloc( MAX_PATH );
#else
char * psz_tmp = malloc( MAX_PATH );
#endif
int i = 0, i_error = GetLastError();
FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, i_error, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)psz_tmp, MAX_PATH, NULL );
/* Go to the end of the string */
while( psz_tmp[i] && psz_tmp[i] != _T('\r') && psz_tmp[i] != _T('\n') )
{
i++;
}
if( psz_tmp[i] )
{
#if defined(UNDER_CE)
swprintf( psz_tmp + i, L" (error %i)", i_error );
psz_tmp[ 255 ] = L'\0';
#else
snprintf( psz_tmp + i, 256 - i, " (error %i)", i_error );
psz_tmp[ 255 ] = '\0';
#endif
}
#if defined(UNDER_CE)
wcstombs( psz_buffer, psz_tmp, MAX_PATH );
return psz_buffer;
#else
return psz_tmp;
#endif
}
#endif /* HAVE_DL_WINDOWS */
#endif /* HAVE_DYNAMIC_PLUGINS */
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