[vlc-commits] luasd: probe scripts by name in separate helper
Pierre Ynard
git at videolan.org
Wed Nov 16 14:07:46 CET 2016
vlc | branch: master | Pierre Ynard <linkfanel at yahoo.fr> | Wed Nov 16 14:06:41 2016 +0100| [9d4fe2608fa3aa163fc2f77bab3bd39e98ea63d6] | committer: Pierre Ynard
luasd: probe scripts by name in separate helper
Ref #3353
> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=9d4fe2608fa3aa163fc2f77bab3bd39e98ea63d6
---
modules/lua/services_discovery.c | 65 +++++++++++++++++++++++--
modules/lua/vlc.c | 102 ++++++---------------------------------
modules/lua/vlc.h | 5 +-
3 files changed, 78 insertions(+), 94 deletions(-)
diff --git a/modules/lua/services_discovery.c b/modules/lua/services_discovery.c
index 1a17a85..84d5252 100644
--- a/modules/lua/services_discovery.c
+++ b/modules/lua/services_discovery.c
@@ -42,9 +42,8 @@ static int Control( services_discovery_t *p_sd, int i_command, va_list args );
// When successful, the returned string is stored on top of the lua
// stack and remains valid as long as it is kept in the stack.
-#undef vlclua_sd_description
-const char *vlclua_sd_description( vlc_object_t *obj, lua_State *L,
- const char *filename )
+static const char *vlclua_sd_description( vlc_object_t *obj, lua_State *L,
+ const char *filename )
{
lua_getglobal( L, "descriptor" );
if( !lua_isfunction( L, -1 ) )
@@ -74,7 +73,62 @@ const char *vlclua_sd_description( vlc_object_t *obj, lua_State *L,
return lua_tostring( L, -1 );
}
-#define vlclua_sd_description(a, b, c) vlclua_sd_description(VLC_OBJECT(a), b, c)
+
+int vlclua_probe_sd( vlc_object_t *obj, const char *name )
+{
+ vlc_probe_t *probe = (vlc_probe_t *)obj;
+
+ char *filename = vlclua_find_file( "sd", name );
+ if( filename == NULL )
+ {
+ // File suddenly disappeared - maybe a race condition, no problem
+ msg_Err( probe, "Couldn't probe lua services discovery script \"%s\".",
+ name );
+ return VLC_PROBE_CONTINUE;
+ }
+
+ lua_State *L = luaL_newstate();
+ if( !L )
+ {
+ msg_Err( probe, "Could not create new Lua State" );
+ free( filename );
+ return VLC_ENOMEM;
+ }
+ luaL_openlibs( L );
+ if( vlclua_add_modules_path( L, filename ) )
+ {
+ msg_Err( probe, "Error while setting the module search path for %s",
+ filename );
+ lua_close( L );
+ free( filename );
+ return VLC_ENOMEM;
+ }
+ if( vlclua_dofile( obj, L, filename ) )
+ {
+ msg_Err( probe, "Error loading script %s: %s", filename,
+ lua_tostring( L, -1 ) );
+ lua_close( L );
+ free( filename );
+ return VLC_PROBE_CONTINUE;
+ }
+ const char *description = vlclua_sd_description( obj, L, filename );
+ if( description == NULL )
+ description = name;
+
+ int r = VLC_ENOMEM;
+ char *name_esc = config_StringEscape( name );
+ char *chain;
+ if( asprintf( &chain, "lua{sd='%s'}", name_esc ) != -1 )
+ {
+ r = vlc_sd_probe_Add( probe, chain, description, SD_CAT_INTERNET );
+ free( chain );
+ }
+ free( name_esc );
+
+ lua_close( L );
+ free( filename );
+ return r;
+}
static const char * const ppsz_sd_options[] = { "sd", NULL };
@@ -169,7 +223,8 @@ int Open_LuaSD( vlc_object_t *p_this )
}
// No strdup(), just don't remove the string from the lua stack
- p_sd->description = vlclua_sd_description( p_sd, L, p_sys->psz_filename );
+ p_sd->description = vlclua_sd_description( VLC_OBJECT(p_sd), L,
+ p_sys->psz_filename );
if( p_sd->description == NULL )
p_sd->description = p_sd->psz_name;
diff --git a/modules/lua/vlc.c b/modules/lua/vlc.c
index 2356b36..ec518dd 100644
--- a/modules/lua/vlc.c
+++ b/modules/lua/vlc.c
@@ -619,105 +619,35 @@ int vlclua_playlist_add_internal( vlc_object_t *p_this, lua_State *L,
static int vlc_sd_probe_Open( vlc_object_t *obj )
{
- vlc_probe_t *probe = (vlc_probe_t *)obj;
- char **ppsz_filelist = NULL;
- char **ppsz_fileend = NULL;
- char **ppsz_file;
- char *psz_name;
- char **ppsz_dir_list = NULL;
- char **ppsz_dir;
- lua_State *L = NULL;
+ int r = VLC_PROBE_CONTINUE;
+ char **ppsz_dir_list;
vlclua_dir_list( "sd", &ppsz_dir_list );
- for( ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
+ for( char **ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
{
- int i_files;
- if( ppsz_filelist )
- {
- for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
- ppsz_file++ )
- free( *ppsz_file );
- free( ppsz_filelist );
- ppsz_filelist = NULL;
- }
- i_files = vlc_scandir( *ppsz_dir, &ppsz_filelist, file_select,
+ char **ppsz_filelist;
+ int i_files = vlc_scandir( *ppsz_dir, &ppsz_filelist, file_select,
file_compare );
if( i_files < 1 ) continue;
- ppsz_fileend = ppsz_filelist + i_files;
- for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend; ppsz_file++ )
- {
- char *psz_filename;
- if( asprintf( &psz_filename,
- "%s" DIR_SEP "%s", *ppsz_dir, *ppsz_file ) < 0 )
- {
- goto error;
- }
- L = luaL_newstate();
- if( !L )
- {
- msg_Err( probe, "Could not create new Lua State" );
- free( psz_filename );
- goto error;
- }
- luaL_openlibs( L );
- if( vlclua_add_modules_path( L, psz_filename ) )
- {
- msg_Err( probe, "Error while setting the module search path for %s",
- psz_filename );
- free( psz_filename );
- goto error;
- }
- if( vlclua_dofile( VLC_OBJECT(probe), L, psz_filename ) )
- {
- msg_Err( probe, "Error loading script %s: %s", psz_filename,
- lua_tostring( L, lua_gettop( L ) ) );
- lua_pop( L, 1 );
- free( psz_filename );
- lua_close( L );
- continue;
- }
+ for( char **ppsz_file = ppsz_filelist;
+ ppsz_file < ppsz_filelist + i_files; ppsz_file++ )
+ {
char *temp = strchr( *ppsz_file, '.' );
if( temp )
*temp = '\0';
- const char *psz_longname = vlclua_sd_description( probe, L, psz_filename );
- if( psz_longname == NULL )
- psz_longname = *ppsz_file;
-
- char *psz_file_esc = config_StringEscape( *ppsz_file );
- if( asprintf( &psz_name, "lua{sd='%s'}", psz_file_esc ) < 0 )
- {
- free( psz_file_esc );
- free( psz_filename );
- goto error;
- }
- free( psz_file_esc );
- vlc_sd_probe_Add( probe, psz_name, psz_longname, SD_CAT_INTERNET );
- free( psz_name );
- free( psz_filename );
- lua_close( L );
+ r = vlclua_probe_sd( obj, *ppsz_file );
+ if( r != VLC_PROBE_CONTINUE )
+ break;
}
- }
- if( ppsz_filelist )
- {
- for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
- ppsz_file++ )
- free( *ppsz_file );
- free( ppsz_filelist );
- }
- vlclua_dir_list_free( ppsz_dir_list );
- return VLC_PROBE_CONTINUE;
-error:
- if( ppsz_filelist )
- {
- for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
- ppsz_file++ )
+ for( char **ppsz_file = ppsz_filelist;
+ ppsz_file < ppsz_filelist + i_files; ppsz_file++ )
free( *ppsz_file );
free( ppsz_filelist );
+ if( r != VLC_PROBE_CONTINUE )
+ break;
}
- if( L )
- lua_close( L );
vlclua_dir_list_free( ppsz_dir_list );
- return VLC_ENOMEM;
+ return r;
}
static int vlclua_add_modules_path_inner( lua_State *L, const char *psz_path )
diff --git a/modules/lua/vlc.h b/modules/lua/vlc.h
index 0186bfa..f79d9c6 100644
--- a/modules/lua/vlc.h
+++ b/modules/lua/vlc.h
@@ -91,9 +91,8 @@ void Close_Extension( vlc_object_t * );
int Open_LuaSD( vlc_object_t * );
void Close_LuaSD( vlc_object_t * );
-// Helper
-const char *vlclua_sd_description( vlc_object_t *, lua_State *, const char * );
-#define vlclua_sd_description(a, b, c) vlclua_sd_description(VLC_OBJECT(a), b, c)
+// Script probe
+int vlclua_probe_sd( vlc_object_t *, const char *name );
/*****************************************************************************
* Lua debug
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