Lua: revert should_die to using vlc_object_alive()

modules/lua/intf.c

@@ -362,12 +362,8 @@ static int Start_LuaIntf( vlc_object_t *p_this, const char *name )
 
     p_sys->L = L;
 
-    vlc_mutex_init( &p_sys->lock );
-    p_sys->exiting = false;
-
     if( vlc_clone( &p_sys->thread, Run, p_intf, VLC_THREAD_PRIORITY_LOW ) )
     {
-        vlc_mutex_destroy( &p_sys->lock );
         lua_close( p_sys->L );
         goto error;
     }
@@ -387,13 +383,7 @@ void Close_LuaIntf( vlc_object_t *p_this )
     intf_sys_t *p_sys = p_intf->p_sys;
 
     vlc_cancel( p_sys->thread );
-
-    vlc_mutex_lock( &p_sys->lock );
-    p_sys->exiting = true;
-    vlc_mutex_unlock( &p_sys->lock );
     vlc_join( p_sys->thread, NULL );
-    vlc_mutex_destroy( &p_sys->lock );
-
     lua_close( p_sys->L );
 
     free( p_sys->psz_filename );

modules/lua/libs/misc.c

@@ -147,8 +147,8 @@ static int vlclua_mwait( lua_State *L )
 
 static int vlclua_intf_should_die( lua_State *L )
 {
-    intf_sys_t *p_sys = vlclua_get_intf( L );
-    lua_pushboolean( L, p_sys->exiting );
+    vlc_object_t *p_this = vlclua_get_this( L );
+    lua_pushboolean( L, !vlc_object_alive( p_this ) );
     return 1;
 }
 

modules/lua/vlc.h

@@ -164,8 +164,6 @@ struct intf_sys_t
     lua_State *L;
 
     vlc_thread_t thread;
-    vlc_mutex_t lock;
-    bool exiting;
 };
 
 #endif /* VLC_LUA_H */