wireplumber/modules/module-lua-scripting/script.h

/* WirePlumber
 *
 * Copyright © 2022 Collabora Ltd.
 *    @author George Kiagiadakis <george.kiagiadakis@collabora.com>
 *
 * SPDX-License-Identifier: MIT
 */

#ifndef __MODULE_LUA_SCRIPTING_SCRIPT_H__
#define __MODULE_LUA_SCRIPTING_SCRIPT_H__

#include <wp/wp.h>
#include <wplua/wplua.h>

G_BEGIN_DECLS

#define WP_TYPE_LUA_SCRIPT (wp_lua_script_get_type ())
G_DECLARE_FINAL_TYPE (WpLuaScript, wp_lua_script, WP, LUA_SCRIPT, WpPlugin)

/* Clear the internal lua_State pointer to prevent the finalizer from
 * attempting to close the already-destroyed state. Called by the Lua
 * scripting plugin during prepare_shutdown. */
WP_API
void wp_lua_script_clear_lua_state (WpLuaScript *self);

G_END_DECLS

#endif
m-lua-scripting: wrap every script in a WpPlugin and expose async activation api This allows scripts to declare when they have finished their loading, so we can now also know when wireplumber is done loading and ready to handle clients Related to !313 2022-04-06 18:11:17 +03:00			`/* WirePlumber`
			`*`
			`* Copyright © 2022 Collabora Ltd.`
			`* @author George Kiagiadakis <george.kiagiadakis@collabora.com>`
			`*`
			`* SPDX-License-Identifier: MIT`
			`*/`

			`#ifndef __MODULE_LUA_SCRIPTING_SCRIPT_H__`
			`#define __MODULE_LUA_SCRIPTING_SCRIPT_H__`

			`#include <wp/wp.h>`
			`#include <wplua/wplua.h>`

			`G_BEGIN_DECLS`

			`#define WP_TYPE_LUA_SCRIPT (wp_lua_script_get_type ())`
			`G_DECLARE_FINAL_TYPE (WpLuaScript, wp_lua_script, WP, LUA_SCRIPT, WpPlugin)`

lib: core: add prepare_shutdown vfunc to fix Lua GC crash on exit When WirePlumber exits, it crashes with SIGABRT. The backtrace shows: 7 g_closure_invalidate 10 g_object_unref 15 g_value_unset 16 _wplua_gvalue_userdata___gc 26 close_state (lua_close) 27 wp_plugin_deactivate 33 wp_registry_clear 34 wp_core_dispose Root cause: lua_State is referenced by both the main plugin and each WpLuaScript object. During registry cleanup, scripts call lua_close again on an already-destroyed state, causing use-after-free. Fix: - Add a prepare_shutdown vfunc in WpPlugin. Call it from wp_core_dispose before clearing the registry. - Lua plugin implements prepare_shutdown to close its lua_State early, allowing all __gc finalizers to run while GObjects are still alive. - Then clear the lua_State pointer from every WpLuaScript object via wp_lua_script_clear_lua_state(). - Guard WpLuaScript finalize to skip if pointer is already NULL. 2026-05-07 23:15:08 +08:00			`/* Clear the internal lua_State pointer to prevent the finalizer from`
			`* attempting to close the already-destroyed state. Called by the Lua`
			`* scripting plugin during prepare_shutdown. */`
			`WP_API`
			`void wp_lua_script_clear_lua_state (WpLuaScript *self);`

m-lua-scripting: wrap every script in a WpPlugin and expose async activation api This allows scripts to declare when they have finished their loading, so we can now also know when wireplumber is done loading and ready to handle clients Related to !313 2022-04-06 18:11:17 +03:00			`G_END_DECLS`

			`#endif`