gplugin/gplugin

We don't need GModule in our gir file

2022-01-30, Gary Kramlich
1195da375abd
We don't need GModule in our gir file

Testing Done:
Compiled and made sure there was no reference to `GModule` in `GPlugin-1.0.gir`.

Reviewed at https://reviews.imfreedom.org/r/1252/
/*
* Copyright (C) 2011-2020 Gary Kramlich <grim@reaperworld.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <https://www.gnu.org/licenses/>.
*/
#include "gplugin-lua-loader.h"
#include <glib/gi18n-lib.h>
#include <lauxlib.h>
#include <lua.h>
#include <lualib.h>
#include "gplugin-lua-plugin.h"
struct _GPluginLuaLoader {
GPluginLoader parent;
};
G_DEFINE_DYNAMIC_TYPE(GPluginLuaLoader, gplugin_lua_loader, GPLUGIN_TYPE_LOADER)
/******************************************************************************
* Helpers
*****************************************************************************/
static void
_gplugin_lua_error_to_gerror(lua_State *L, GError **error)
{
const gchar *msg = NULL;
if(error == NULL)
return;
msg = lua_tostring(L, -1);
g_set_error_literal(error, GPLUGIN_DOMAIN, 0, (msg) ? msg : "Unknown");
}
/******************************************************************************
* GPluginLoaderInterface API
*****************************************************************************/
static GSList *
gplugin_lua_loader_supported_extensions(G_GNUC_UNUSED GPluginLoader *l)
{
return g_slist_append(NULL, "lua");
}
static GPluginPlugin *
gplugin_lua_loader_query(
GPluginLoader *loader,
const gchar *filename,
GError **error)
{
GPluginPlugin *plugin = NULL;
GPluginPluginInfo *info = NULL;
lua_State *L = NULL;
L = luaL_newstate();
luaL_openlibs(L);
if(luaL_loadfile(L, filename) != 0) {
_gplugin_lua_error_to_gerror(L, error);
return NULL;
}
/* run the script */
if(lua_pcall(L, 0, 0, 0) != 0) {
_gplugin_lua_error_to_gerror(L, error);
return NULL;
}
lua_getglobal(L, "gplugin_query");
if(lua_isnil(L, -1)) {
g_set_error(
error,
GPLUGIN_DOMAIN,
0,
"no gplugin_query function found");
return NULL;
}
if(lua_pcall(L, 0, 1, 0) != 0) {
_gplugin_lua_error_to_gerror(L, error);
return NULL;
}
if(!lua_isuserdata(L, -1)) {
_gplugin_lua_error_to_gerror(L, error);
return NULL;
}
lua_getfield(L, -1, "_native");
info = lua_touserdata(L, -1);
lua_pop(L, 1);
/* clang-format off */
plugin = g_object_new(
GPLUGIN_LUA_TYPE_PLUGIN,
"filename", filename,
"loader", loader,
"lua-state", L,
"info", info,
NULL);
/* clang-format on */
return plugin;
}
static gboolean
gplugin_lua_loader_load(
G_GNUC_UNUSED GPluginLoader *loader,
GPluginPlugin *plugin,
GError **error)
{
gboolean ret = TRUE;
lua_State *L = gplugin_lua_plugin_get_state(GPLUGIN_LUA_PLUGIN(plugin));
lua_getglobal(L, "gplugin_load");
lua_pushlightuserdata(L, plugin);
if(lua_pcall(L, 1, 1, 0) != 0) {
_gplugin_lua_error_to_gerror(L, error);
return FALSE;
}
if(!lua_isboolean(L, -1)) {
_gplugin_lua_error_to_gerror(L, error);
return FALSE;
}
if(!lua_toboolean(L, -1)) {
ret = FALSE;
_gplugin_lua_error_to_gerror(L, error);
}
return ret;
}
static gboolean
gplugin_lua_loader_unload(
G_GNUC_UNUSED GPluginLoader *loader,
GPluginPlugin *plugin,
gboolean shutdown,
GError **error)
{
gboolean ret = TRUE;
lua_State *L = gplugin_lua_plugin_get_state(GPLUGIN_LUA_PLUGIN(plugin));
lua_getglobal(L, "gplugin_unload");
lua_pushlightuserdata(L, plugin);
lua_pushboolean(L, shutdown);
if(lua_pcall(L, 2, 1, 0) != 0) {
_gplugin_lua_error_to_gerror(L, error);
return FALSE;
}
if(!lua_isboolean(L, -1)) {
_gplugin_lua_error_to_gerror(L, error);
return FALSE;
}
if(!lua_toboolean(L, -1)) {
ret = FALSE;
_gplugin_lua_error_to_gerror(L, error);
}
return ret;
}
/******************************************************************************
* GObject Stuff
*****************************************************************************/
static void
gplugin_lua_loader_init(G_GNUC_UNUSED GPluginLuaLoader *loader)
{
}
static void
gplugin_lua_loader_class_finalize(G_GNUC_UNUSED GPluginLuaLoaderClass *klass)
{
}
static void
gplugin_lua_loader_class_init(GPluginLuaLoaderClass *klass)
{
GPluginLoaderClass *loader_class = GPLUGIN_LOADER_CLASS(klass);
loader_class->supported_extensions =
gplugin_lua_loader_supported_extensions;
loader_class->query = gplugin_lua_loader_query;
loader_class->load = gplugin_lua_loader_load;
loader_class->unload = gplugin_lua_loader_unload;
}
/******************************************************************************
* API
*****************************************************************************/
void
gplugin_lua_loader_register(GTypeModule *module)
{
gplugin_lua_loader_register_type(module);
}
GPluginLoader *
gplugin_lua_loader_new(void)
{
/* clang-format off */
return GPLUGIN_LOADER(g_object_new(
GPLUGIN_LUA_TYPE_LOADER,
"id", "gplugin-lua5",
NULL));
/* clang-format on */
}