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#include <Python.h>
#include <structmember.h>
#include <lasso/lasso.h>
#include <lasso_config.h>
GQuark lasso_wrapper_key;
PyMODINIT_FUNC init_lasso(void);
static PyObject* get_pystring_from_xml_node(xmlNode *xmlnode);
static xmlNode* get_xml_node_from_pystring(PyObject *string);
static PyObject* get_dict_from_hashtable_of_strings(GHashTable *value);
static PyObject* get_dict_from_hashtable_of_objects(GHashTable *value);
static PyObject* PyGObjectPtr_New(GObject *obj);
/* utility functions */
#if (GLIB_MAJOR_VERSION == 2 && GLIB_MINOR_VERSION < 14)
/* copy of private struct and g_hash_table_get_keys from GLib internals
* (as this function is useful but new in 2.14) */
typedef struct _GHashNode GHashNode;
struct _GHashNode
{
gpointer key;
gpointer value;
GHashNode *next;
guint key_hash;
};
struct _GHashTable
{
gint size;
gint nnodes;
GHashNode **nodes;
GHashFunc hash_func;
GEqualFunc key_equal_func;
volatile gint ref_count;
GDestroyNotify key_destroy_func;
GDestroyNotify value_destroy_func;
};
static GList *
g_hash_table_get_keys (GHashTable *hash_table)
{
GHashNode *node;
gint i;
GList *retval;
g_return_val_if_fail (hash_table != NULL, NULL);
retval = NULL;
for (i = 0; i < hash_table->size; i++)
for (node = hash_table->nodes[i]; node; node = node->next)
retval = g_list_prepend (retval, node->key);
return retval;
}
#endif
static PyObject*
get_dict_from_hashtable_of_strings(GHashTable *value)
{
GList *keys;
PyObject *dict;
char *item_value;
PyObject *item;
dict = PyDict_New();
keys = g_hash_table_get_keys(value);
for (; keys; keys = g_list_next(keys)) {
item_value = g_hash_table_lookup(value, keys->data);
if (item_value) {
item = PyString_FromString(item_value);
PyDict_SetItemString(dict, (char*)keys->data, item);
Py_DECREF(item);
} else {
PyDict_SetItemString(dict, (char*)keys->data, Py_None);
}
}
g_list_free(keys);
return PyDictProxy_New(dict);
}
static PyObject*
get_dict_from_hashtable_of_objects(GHashTable *value)
{
GList *keys;
PyObject *dict;
GObject *item_value;
PyObject *item;
dict = PyDict_New();
keys = g_hash_table_get_keys(value);
for (; keys; keys = g_list_next(keys)) {
item_value = g_hash_table_lookup(value, keys->data);
if (item_value) {
item = PyGObjectPtr_New(G_OBJECT(item_value));
PyDict_SetItemString(dict, (char*)keys->data, item);
Py_DECREF(item);
} else {
PyDict_SetItemString(dict, (char*)keys->data, Py_None);
}
}
g_list_free(keys);
return PyDictProxy_New(dict);
}
static PyObject*
get_pystring_from_xml_node(xmlNode *xmlnode)
{
xmlOutputBufferPtr buf;
PyObject *pystring = NULL;
if (xmlnode == NULL) {
return NULL;
}
buf = xmlAllocOutputBuffer(NULL);
if (buf == NULL) {
pystring = NULL;
} else {
xmlNodeDumpOutput(buf, NULL, xmlnode, 0, 1, NULL);
xmlOutputBufferFlush(buf);
if (buf->conv == NULL) {
pystring = PyString_FromString((char*)buf->buffer->content);
} else {
pystring = PyString_FromString((char*)buf->conv->content);
}
xmlOutputBufferClose(buf);
}
return pystring;
}
static xmlNode*
get_xml_node_from_pystring(PyObject *string) {
xmlDoc *doc;
xmlNode *node;
doc = xmlReadDoc((xmlChar*)PyString_AsString(string), NULL, NULL, XML_PARSE_NONET);
node = xmlDocGetRootElement(doc);
if (node != NULL) {
node = xmlCopyNode(node, 1);
}
xmlFreeDoc(doc);
return node;
}
/* wrapper around GObject */
typedef struct {
PyObject_HEAD
GObject *obj;
PyObject *typename;
} PyGObjectPtr;
static PyTypeObject PyGObjectPtrType;
static void
PyGObjectPtr_dealloc(PyGObjectPtr *self)
{
#ifdef LASSO_DEBUG
fprintf(stderr, "dealloc (%p ptr to %p (type:%s, rc:%d))\n",
self, self->obj,
G_OBJECT_TYPE_NAME(self->obj),
self->obj->ref_count);
#endif
g_object_set_qdata_full(self->obj, lasso_wrapper_key, NULL, NULL);
g_object_unref(self->obj);
Py_XDECREF(self->typename);
self->ob_type->tp_free((PyObject*)self);
}
static PyObject*
PyGObjectPtr_New(GObject *obj)
{
PyGObjectPtr *self;
if (obj == NULL) {
Py_INCREF(Py_None);
return Py_None;
}
self = (PyGObjectPtr*)g_object_get_qdata(obj, lasso_wrapper_key);
if (self != NULL) {
Py_INCREF(self);
} else {
self = (PyGObjectPtr*)PyObject_NEW(PyGObjectPtr, &PyGObjectPtrType);
g_object_set_qdata_full(obj, lasso_wrapper_key, self, NULL);
self->obj = obj;
self->typename = PyString_FromString(G_OBJECT_TYPE_NAME(obj)+5);
}
return (PyObject*)self;
}
static PyObject *
PyGObjectPtr_repr(PyGObjectPtr *obj)
{
return PyString_FromFormat("<PyGObjectPtr to %p (type: %s, refcount: %d)>",
obj->obj,
G_OBJECT_TYPE_NAME(obj->obj),
obj->obj->ref_count);
}
static PyMemberDef PyGObjectPtr_members[] = {
{"typename", T_OBJECT, offsetof(PyGObjectPtr, typename), 0, "typename"},
{NULL}
};
static PyObject* PyGObjectPtr_get_refcount(PyGObjectPtr *self, void *closure)
{
PyObject *refcount;
refcount = PyInt_FromLong(self->obj->ref_count);
Py_INCREF(refcount);
return refcount;
}
static PyGetSetDef PyGObjectPtr_getseters[] = {
{"refcount", (getter)PyGObjectPtr_get_refcount, NULL,
"reference count of intern GObject*", NULL},
{NULL} /* Sentinel */
};
static PyTypeObject PyGObjectPtrType = {
PyObject_HEAD_INIT(NULL)
0, /* ob_size */
"_lasso.PyGObjectPtr", /* tp_name */
sizeof(PyGObjectPtr), /* tp_basicsize */
0, /* tp_itemsize */
(destructor)PyGObjectPtr_dealloc, /* tp_dealloc */
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
(reprfunc)PyGObjectPtr_repr, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash */
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
"PyGObjectPtr objects", /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
PyGObjectPtr_members, /* tp_members */
PyGObjectPtr_getseters, /* tp_getset */
};
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