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/* C API for _dbus_bindings, used by _dbus_glib_bindings and any third-party
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* main loop integration which might happen in future.
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*
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* This file is currently Python-version-independent - please keep it that way.
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*
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* Copyright (C) 2006 Collabora Ltd. <http://www.collabora.co.uk/>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef DBUS_PYTHON_H
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#define DBUS_PYTHON_H
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#include <Python.h>
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#include <dbus/dbus.h>
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#if PY_MAJOR_VERSION >= 3
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#define PY3
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#define PYDBUS_CAPSULE_NAME "_dbus_bindings._C_API"
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#endif
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DBUS_BEGIN_DECLS
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typedef void (*_dbus_py_func_ptr)(void);
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typedef dbus_bool_t (*_dbus_py_conn_setup_func)(DBusConnection *, void *);
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typedef dbus_bool_t (*_dbus_py_srv_setup_func)(DBusServer *, void *);
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typedef void (*_dbus_py_free_func)(void *);
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#define DBUS_BINDINGS_API_COUNT 3
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#ifdef INSIDE_DBUS_PYTHON_BINDINGS
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extern DBusConnection *DBusPyConnection_BorrowDBusConnection(PyObject *);
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extern PyObject *DBusPyNativeMainLoop_New4(_dbus_py_conn_setup_func,
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_dbus_py_srv_setup_func,
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_dbus_py_free_func,
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void *);
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#else
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static PyObject *_dbus_bindings_module = NULL;
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static _dbus_py_func_ptr *dbus_bindings_API;
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#define DBusPyConnection_BorrowDBusConnection \
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(*(DBusConnection *(*)(PyObject *))dbus_bindings_API[1])
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#define DBusPyNativeMainLoop_New4 \
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((PyObject *(*)(_dbus_py_conn_setup_func, _dbus_py_srv_setup_func, \
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_dbus_py_free_func, void *))dbus_bindings_API[2])
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static int
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import_dbus_bindings(const char *this_module_name)
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{
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PyObject *c_api;
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int count;
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_dbus_bindings_module = PyImport_ImportModule("_dbus_bindings");
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if (!_dbus_bindings_module) {
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return -1;
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}
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c_api = PyObject_GetAttrString(_dbus_bindings_module, "_C_API");
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if (c_api == NULL) return -1;
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#ifdef PY3
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dbus_bindings_API = NULL;
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if (PyCapsule_IsValid(c_api, PYDBUS_CAPSULE_NAME)) {
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dbus_bindings_API = (_dbus_py_func_ptr *)PyCapsule_GetPointer(
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c_api, PYDBUS_CAPSULE_NAME);
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}
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Py_CLEAR(c_api);
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if (!dbus_bindings_API) {
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PyErr_SetString(PyExc_RuntimeError, "C API is not a PyCapsule");
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return -1;
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}
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#else
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if (PyCObject_Check(c_api)) {
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dbus_bindings_API = (_dbus_py_func_ptr *)PyCObject_AsVoidPtr(c_api);
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}
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else {
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Py_DECREF(c_api);
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PyErr_SetString(PyExc_RuntimeError, "C API is not a PyCObject");
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return -1;
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}
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Py_DECREF (c_api);
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#endif
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count = *(int *)dbus_bindings_API[0];
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if (count < DBUS_BINDINGS_API_COUNT) {
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PyErr_Format(PyExc_RuntimeError,
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"_dbus_bindings has API version %d but %s needs "
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"_dbus_bindings API version at least %d",
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count, this_module_name,
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DBUS_BINDINGS_API_COUNT);
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return -1;
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}
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return 0;
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}
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#endif
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DBUS_END_DECLS
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#endif
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