gplugin/gplugin

flow: Merged <release> '0.26' to <master> ('default').
v0.26
2016-03-03, Gary Kramlich
98178efd03b1
flow: Merged '0.26' to ('default').
/*
* Copyright (C) 2011-2014 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 <http://www.gnu.org/licenses/>.
*/
#include <Python.h>
#include "gplugin-python-plugin.h"
#include <pygobject.h>
#define GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE((obj), GPLUGIN_TYPE_PYTHON_PLUGIN, GPluginPythonPluginPrivate))
/******************************************************************************
* Typedefs
*****************************************************************************/
typedef struct {
PyObject *module;
PyObject *query;
PyObject *load;
PyObject *unload;
} GPluginPythonPluginPrivate;
/******************************************************************************
* Enums
*****************************************************************************/
enum {
PROP_ZERO,
PROP_MODULE,
PROP_LOAD_FUNC,
PROP_UNLOAD_FUNC,
PROP_LAST,
};
/******************************************************************************
* Globals
*****************************************************************************/
static GObjectClass *parent_class = NULL;
static GType type_real = 0;
/******************************************************************************
* Private Stuff
*****************************************************************************/
static PyObject *
gplugin_python_plugin_get_module(const GPluginPythonPlugin *plugin) {
GPluginPythonPluginPrivate *priv = NULL;
g_return_val_if_fail(GPLUGIN_IS_PYTHON_PLUGIN(plugin), NULL);
priv = GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(plugin);
return priv->module;
}
static void
gplugin_python_plugin_set_module(GPluginPythonPlugin *plugin,
PyObject *module)
{
GPluginPythonPluginPrivate *priv = NULL;
g_return_if_fail(GPLUGIN_IS_PLUGIN(plugin));
g_return_if_fail(module);
priv = GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(plugin);
if(priv->module)
Py_DECREF(priv->module);
priv->module = module;
if(priv->module)
Py_INCREF(priv->module);
}
static gpointer
gplugin_python_plugin_get_load_func(const GPluginPythonPlugin *plugin) {
GPluginPythonPluginPrivate *priv = NULL;
g_return_val_if_fail(GPLUGIN_IS_PYTHON_PLUGIN(plugin), NULL);
priv = GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(plugin);
return priv->load;
}
static void
gplugin_python_plugin_set_load_func(GPluginPythonPlugin *plugin,
PyObject *func)
{
GPluginPythonPluginPrivate *priv = NULL;
g_return_if_fail(GPLUGIN_IS_PYTHON_PLUGIN(plugin));
g_return_if_fail(func != NULL);
priv = GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(plugin);
if(priv->load)
Py_DECREF(priv->load);
priv->load = func;
if(priv->load)
Py_INCREF(priv->load);
}
static gpointer
gplugin_python_plugin_get_unload_func(const GPluginPythonPlugin *plugin) {
GPluginPythonPluginPrivate *priv = NULL;
g_return_val_if_fail(GPLUGIN_IS_PYTHON_PLUGIN(plugin), NULL);
priv = GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(plugin);
return priv->unload;
}
static void
gplugin_python_plugin_set_unload_func(GPluginPythonPlugin *plugin,
PyObject *func)
{
GPluginPythonPluginPrivate *priv = NULL;
g_return_if_fail(GPLUGIN_IS_PYTHON_PLUGIN(plugin));
g_return_if_fail(func != NULL);
priv = GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(plugin);
if(priv->unload)
Py_DECREF(priv->unload);
priv->unload = func;
if(priv->unload)
Py_INCREF(priv->unload);
}
/******************************************************************************
* Object Stuff
*****************************************************************************/
static void
gplugin_python_plugin_get_property(GObject *obj, guint param_id, GValue *value,
GParamSpec *pspec)
{
GPluginPythonPlugin *plugin = GPLUGIN_PYTHON_PLUGIN(obj);
switch(param_id) {
case PROP_MODULE:
g_value_set_pointer(value,
gplugin_python_plugin_get_module(plugin));
break;
case PROP_LOAD_FUNC:
g_value_set_pointer(value,
gplugin_python_plugin_get_load_func(plugin));
break;
case PROP_UNLOAD_FUNC:
g_value_set_pointer(value,
gplugin_python_plugin_get_unload_func(plugin));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, param_id, pspec);
break;
}
}
static void
gplugin_python_plugin_set_property(GObject *obj, guint param_id,
const GValue *value, GParamSpec *pspec)
{
GPluginPythonPlugin *plugin = GPLUGIN_PYTHON_PLUGIN(obj);
switch(param_id) {
case PROP_MODULE:
gplugin_python_plugin_set_module(plugin,
g_value_get_pointer(value));
break;
case PROP_LOAD_FUNC:
gplugin_python_plugin_set_load_func(plugin,
g_value_get_pointer(value));
break;
case PROP_UNLOAD_FUNC:
gplugin_python_plugin_set_unload_func(plugin,
g_value_get_pointer(value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, param_id, pspec);
break;
}
}
static void
gplugin_python_plugin_finalize(GObject *obj) {
GPluginPythonPluginPrivate *priv =
GPLUGIN_PYTHON_PLUGIN_GET_PRIVATE(obj);
if(priv->module)
Py_DECREF(priv->module);
if(priv->load)
Py_DECREF(priv->load);
if(priv->unload)
Py_DECREF(priv->unload);
G_OBJECT_CLASS(parent_class)->finalize(obj);
}
static void
gplugin_python_plugin_class_init(GPluginPythonPluginClass *klass) {
GObjectClass *obj_class = G_OBJECT_CLASS(klass);
parent_class = g_type_class_peek_parent(klass);
g_type_class_add_private(klass, sizeof(GPluginPythonPluginPrivate));
obj_class->get_property = gplugin_python_plugin_get_property;
obj_class->set_property = gplugin_python_plugin_set_property;
obj_class->finalize = gplugin_python_plugin_finalize;
g_object_class_install_property(obj_class, PROP_MODULE,
g_param_spec_pointer("module", "module",
"The python module object",
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property(obj_class, PROP_LOAD_FUNC,
g_param_spec_pointer("load-func", "load-func",
"The python load function",
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property(obj_class, PROP_UNLOAD_FUNC,
g_param_spec_pointer("unload-func", "unload-func",
"The python unload function",
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
}
/******************************************************************************
* API
*****************************************************************************/
void
gplugin_python_plugin_register(GPluginNativePlugin *plugin) {
if(g_once_init_enter(&type_real)) {
GType type = 0;
static const GTypeInfo info = {
.class_size = sizeof(GPluginPythonPluginClass),
.class_init = (GClassInitFunc)gplugin_python_plugin_class_init,
.instance_size = sizeof(GPluginPythonPlugin),
};
type = gplugin_native_plugin_register_type(plugin,
GPLUGIN_TYPE_PLUGIN,
"GPluginPythonPlugin",
&info,
0);
g_once_init_leave(&type_real, type);
}
}
GType
gplugin_python_plugin_get_type(void) {
if(G_UNLIKELY(type_real == 0)) {
g_warning("gplugin_python_plugin_get_type was called before "
"the type was registered!\n");
}
return type_real;
}