gboolean
_pyglib_handler_marshal(gpointer user_data)
{
PyObject *tuple, *ret;
gboolean res;
PyGILState_STATE state;
g_return_val_if_fail(user_data != NULL, FALSE);
state = pyglib_gil_state_ensure();
tuple = (PyObject *)user_data;
ret = PyObject_CallObject(PyTuple_GetItem(tuple, 0),
PyTuple_GetItem(tuple, 1));
if (!ret) {
PyErr_Print();
res = FALSE;
} else {
res = PyObject_IsTrue(ret);
Py_DECREF(ret);
}
pyglib_gil_state_release(state);
return res;
}
static gboolean
pyg_signal_watch_check(GSource *source)
{
PyGILState_STATE state;
GMainLoop *main_loop;
#ifdef HAVE_PYSIGNAL_SETWAKEUPFD
PySignalWatchSource *real_source = (PySignalWatchSource *)source;
GPollFD *poll_fd = &real_source->fd;
unsigned char dummy;
if (poll_fd->revents & G_IO_IN)
read(poll_fd->fd, &dummy, 1);
#endif
state = pyglib_gil_state_ensure();
main_loop = pyg_get_current_main_loop();
if (PyErr_CheckSignals() == -1 && main_loop != NULL) {
PyErr_SetNone(PyExc_KeyboardInterrupt);
g_main_loop_quit(main_loop);
}
pyglib_gil_state_release(state);
return FALSE;
}
/**
* pyglib_error_check:
* @error: a pointer to the GError.
*
* Checks to see if the GError has been set. If the error has been
* set, then the glib.GError Python exception will be raised, and
* the GError cleared.
*
* Returns: True if an error was set.
*/
gboolean
pyglib_error_check(GError **error)
{
PyGILState_STATE state;
PyObject *exc_type;
PyObject *exc_instance;
PyObject *d;
g_return_val_if_fail(error != NULL, FALSE);
if (*error == NULL)
return FALSE;
state = pyglib_gil_state_ensure();
exc_type = _PyGLib_API->gerror_exception;
if (exception_table != NULL)
{
PyObject *item;
item = PyDict_GetItem(exception_table, _PyLong_FromLong((*error)->domain));
if (item != NULL)
exc_type = item;
}
exc_instance = PyObject_CallFunction(exc_type, "z", (*error)->message);
if ((*error)->domain) {
PyObject_SetAttrString(exc_instance, "domain",
d=_PyUnicode_FromString(g_quark_to_string((*error)->domain)));
Py_DECREF(d);
}
else
PyObject_SetAttrString(exc_instance, "domain", Py_None);
PyObject_SetAttrString(exc_instance, "code",
d=_PyLong_FromLong((*error)->code));
Py_DECREF(d);
if ((*error)->message) {
PyObject_SetAttrString(exc_instance, "message",
d=_PyUnicode_FromString((*error)->message));
Py_DECREF(d);
} else {
PyObject_SetAttrString(exc_instance, "message", Py_None);
}
PyErr_SetObject(_PyGLib_API->gerror_exception, exc_instance);
Py_DECREF(exc_instance);
g_clear_error(error);
pyglib_gil_state_release(state);
return TRUE;
}
/**
* _pyglib_destroy_notify:
* @user_data: a PyObject pointer.
*
* A function that can be used as a GDestroyNotify callback that will
* call Py_DECREF on the data.
*/
void
_pyglib_destroy_notify(gpointer user_data)
{
PyObject *obj = (PyObject *)user_data;
PyGILState_STATE state;
g_return_if_fail (_PyGLib_API != NULL);
state = pyglib_gil_state_ensure();
Py_DECREF(obj);
pyglib_gil_state_release(state);
}
static void
pyg_closure_invalidate(gpointer data, GClosure *closure)
{
PyGClosure *pc = (PyGClosure *)closure;
PyGILState_STATE state;
state = pyglib_gil_state_ensure();
Py_XDECREF(pc->callback);
Py_XDECREF(pc->extra_args);
Py_XDECREF(pc->swap_data);
pyglib_gil_state_release(state);
pc->callback = NULL;
pc->extra_args = NULL;
pc->swap_data = NULL;
}
/**
* pygi_error_check:
* @error: a pointer to the GError.
*
* Checks to see if the GError has been set. If the error has been
* set, then the glib.GError Python exception will be raised, and
* the GError cleared.
*
* Returns: True if an error was set.
*/
gboolean
pygi_error_check (GError **error)
{
PyGILState_STATE state;
PyObject *exc_instance;
g_return_val_if_fail(error != NULL, FALSE);
if (*error == NULL)
return FALSE;
state = pyglib_gil_state_ensure();
exc_instance = pygi_error_marshal_to_py (error);
PyErr_SetObject(PyGError, exc_instance);
Py_DECREF(exc_instance);
g_clear_error(error);
pyglib_gil_state_release(state);
return TRUE;
}
/**
* pygi_error_marshal_to_py:
* @error: a pointer to the GError.
*
* Checks to see if @error has been set. If @error has been set, then a
* GLib.GError Python exception object is returned (but not raised).
*
* Returns: a GLib.GError Python exception object, or NULL.
*/
PyObject *
pygi_error_marshal_to_py (GError **error)
{
PyGILState_STATE state;
PyObject *exc_type;
PyObject *exc_instance;
const char *domain = NULL;
g_return_val_if_fail(error != NULL, NULL);
if (*error == NULL)
return NULL;
state = pyglib_gil_state_ensure();
exc_type = PyGError;
if (exception_table != NULL)
{
PyObject *item;
item = PyDict_GetItem(exception_table, PYGLIB_PyLong_FromLong((*error)->domain));
if (item != NULL)
exc_type = item;
}
if ((*error)->domain) {
domain = g_quark_to_string ((*error)->domain);
}
exc_instance = PyObject_CallFunction (exc_type, "ssi",
(*error)->message,
domain,
(*error)->code);
pyglib_gil_state_release(state);
return exc_instance;
}
static void
pyg_signal_class_closure_marshal(GClosure *closure,
GValue *return_value,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data)
{
PyGILState_STATE state;
GObject *object;
PyObject *object_wrapper;
GSignalInvocationHint *hint = (GSignalInvocationHint *)invocation_hint;
gchar *method_name, *tmp;
PyObject *method;
PyObject *params, *ret;
guint i, len;
state = pyglib_gil_state_ensure();
g_return_if_fail(invocation_hint != NULL);
/* get the object passed as the first argument to the closure */
object = g_value_get_object(¶m_values[0]);
g_return_if_fail(object != NULL && G_IS_OBJECT(object));
/* get the wrapper for this object */
object_wrapper = pygobject_new(object);
g_return_if_fail(object_wrapper != NULL);
/* construct method name for this class closure */
method_name = g_strconcat("do_", g_signal_name(hint->signal_id), NULL);
/* convert dashes to underscores. For some reason, g_signal_name
* seems to convert all the underscores in the signal name to
dashes??? */
for (tmp = method_name; *tmp != '\0'; tmp++)
if (*tmp == '-') *tmp = '_';
method = PyObject_GetAttrString(object_wrapper, method_name);
g_free(method_name);
if (!method) {
PyErr_Clear();
Py_DECREF(object_wrapper);
pyglib_gil_state_release(state);
return;
}
Py_DECREF(object_wrapper);
/* construct Python tuple for the parameter values; don't copy boxed values
initially because we'll check after the call to see if a copy is needed. */
params = PyTuple_New(n_param_values - 1);
for (i = 1; i < n_param_values; i++) {
PyObject *item = pyg_value_as_pyobject(¶m_values[i], FALSE);
/* error condition */
if (!item) {
Py_DECREF(params);
pyglib_gil_state_release(state);
return;
}
PyTuple_SetItem(params, i - 1, item);
}
ret = PyObject_CallObject(method, params);
/* Copy boxed values if others ref them, this needs to be done regardless of
exception status. */
len = PyTuple_Size(params);
for (i = 0; i < len; i++) {
PyObject *item = PyTuple_GetItem(params, i);
if (item != NULL && PyObject_TypeCheck(item, &PyGBoxed_Type)
&& item->ob_refcnt != 1) {
PyGBoxed* boxed_item = (PyGBoxed*)item;
if (!boxed_item->free_on_dealloc) {
gpointer boxed_ptr = pyg_boxed_get_ptr (boxed_item);
pyg_boxed_set_ptr (boxed_item, g_boxed_copy (boxed_item->gtype, boxed_ptr));
boxed_item->free_on_dealloc = TRUE;
}
}
}
if (ret == NULL) {
PyErr_Print();
Py_DECREF(method);
Py_DECREF(params);
pyglib_gil_state_release(state);
return;
}
Py_DECREF(method);
Py_DECREF(params);
if (G_IS_VALUE(return_value))
pyg_value_from_pyobject(return_value, ret);
Py_DECREF(ret);
pyglib_gil_state_release(state);
}
static void
pyg_closure_marshal(GClosure *closure,
GValue *return_value,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data)
{
PyGILState_STATE state;
PyGClosure *pc = (PyGClosure *)closure;
PyObject *params, *ret;
guint i;
state = pyglib_gil_state_ensure();
/* construct Python tuple for the parameter values */
params = PyTuple_New(n_param_values);
for (i = 0; i < n_param_values; i++) {
/* swap in a different initial data for connect_object() */
if (i == 0 && G_CCLOSURE_SWAP_DATA(closure)) {
g_return_if_fail(pc->swap_data != NULL);
Py_INCREF(pc->swap_data);
PyTuple_SetItem(params, 0, pc->swap_data);
} else {
PyObject *item = pyg_value_as_pyobject(¶m_values[i], FALSE);
/* error condition */
if (!item) {
if (!PyErr_Occurred ())
PyErr_SetString (PyExc_TypeError,
"can't convert parameter to desired type");
if (pc->exception_handler)
pc->exception_handler (return_value, n_param_values, param_values);
else
PyErr_Print();
goto out;
}
PyTuple_SetItem(params, i, item);
}
}
/* params passed to function may have extra arguments */
if (pc->extra_args) {
PyObject *tuple = params;
params = PySequence_Concat(tuple, pc->extra_args);
Py_DECREF(tuple);
}
ret = PyObject_CallObject(pc->callback, params);
if (ret == NULL) {
if (pc->exception_handler)
pc->exception_handler(return_value, n_param_values, param_values);
else
PyErr_Print();
goto out;
}
if (G_IS_VALUE(return_value) && pyg_value_from_pyobject(return_value, ret) != 0) {
/* If we already have an exception set, use that, otherwise set a
* generic one */
if (!PyErr_Occurred())
PyErr_SetString(PyExc_TypeError,
"can't convert return value to desired type");
if (pc->exception_handler)
pc->exception_handler(return_value, n_param_values, param_values);
else
PyErr_Print();
}
Py_DECREF(ret);
out:
Py_DECREF(params);
pyglib_gil_state_release(state);
}