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/* -*- Mode: C; c-set-style: python; c-basic-offset: 4 -*-
* pyglib - Python bindings for GLib toolkit.
* Copyright (C) 1998-2003 James Henstridge
* 2004-2008 Johan Dahlin
*
* 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 2.1 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <Python.h>
#include <pythread.h>
#include "pyglib.h"
#include "pyglib-private.h"
static struct _PyGLib_Functions *_PyGLib_API;
static int pyglib_thread_state_tls_key;
void
pyglib_init(void)
{
PyObject *glib, *cobject;
glib = PyImport_ImportModule("glib");
if (!glib) {
if (PyErr_Occurred()) {
PyObject *type, *value, *traceback;
PyObject *py_orig_exc;
PyErr_Fetch(&type, &value, &traceback);
py_orig_exc = PyObject_Repr(value);
Py_XDECREF(type);
Py_XDECREF(value);
Py_XDECREF(traceback);
PyErr_Format(PyExc_ImportError,
"could not import glib (error was: %s)",
PyString_AsString(py_orig_exc));
Py_DECREF(py_orig_exc);
} else
PyErr_SetString(PyExc_ImportError,
"could not import glib (no error given)");
}
cobject = PyObject_GetAttrString(glib, "_PyGLib_API");
if (cobject && PyCObject_Check(cobject))
_PyGLib_API = (struct _PyGLib_Functions *) PyCObject_AsVoidPtr(cobject);
else {
PyErr_SetString(PyExc_ImportError,
"could not import glib (could not find _PyGLib_API object)");
Py_DECREF(glib);
}
}
void
pyglib_init_internal(PyObject *api)
{
_PyGLib_API = (struct _PyGLib_Functions *) PyCObject_AsVoidPtr(api);
}
PyGILState_STATE
pyglib_gil_state_ensure(void)
{
if (!_PyGLib_API->threads_enabled)
return PyGILState_LOCKED;
return PyGILState_Ensure();
}
void
pyglib_gil_state_release(PyGILState_STATE state)
{
if (!_PyGLib_API->threads_enabled)
return;
PyGILState_Release(state);
}
#ifdef DISABLE_THREADING
gboolean
pyglib_enable_threads(void)
{
PyErr_SetString(PyExc_RuntimeError,
"pyglib threading disabled at compile time");
return FALSE;
}
#else
gboolean
pyglib_enable_threads(void)
{
if (_PyGLib_API->threads_enabled)
return TRUE;
PyEval_InitThreads();
if (!g_threads_got_initialized)
g_thread_init(NULL);
_PyGLib_API->threads_enabled = TRUE;
pyglib_thread_state_tls_key = PyThread_create_key();
return TRUE;
}
#endif
int
pyglib_gil_state_ensure_py23 (void)
{
return PyGILState_Ensure();
}
void
pyglib_gil_state_release_py23 (int flag)
{
PyGILState_Release(flag);
}
/**
* 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_instance;
PyObject *d;
g_return_val_if_fail(error != NULL, FALSE);
if (*error == NULL)
return FALSE;
state = pyglib_gil_state_ensure();
exc_instance = PyObject_CallFunction(_PyGLib_API->gerror_exception, "z",
(*error)->message);
PyObject_SetAttrString(exc_instance, "domain",
d=PyString_FromString(g_quark_to_string((*error)->domain)));
Py_DECREF(d);
PyObject_SetAttrString(exc_instance, "code",
d=PyInt_FromLong((*error)->code));
Py_DECREF(d);
if ((*error)->message) {
PyObject_SetAttrString(exc_instance, "message",
d=PyString_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;
}
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