/* Glue code to attach the GObject main loop to D-Bus from within Python.

 *

 * Copyright (C) 2006 Collabora Ltd. <http://www.collabora.co.uk/>

 *

 * Permission is hereby granted, free of charge, to any person

 * obtaining a copy of this software and associated documentation

 * files (the "Software"), to deal in the Software without

 * restriction, including without limitation the rights to use, copy,

 * modify, merge, publish, distribute, sublicense, and/or sell copies

 * of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be

 * included in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 */

#include <Python.h>

#include <dbus/dbus-python.h>

#include <dbus/dbus-glib.h>

#include <dbus/dbus-glib-lowlevel.h>

#ifdef PY3

PyMODINIT_FUNC PyInit__dbus_glib_bindings(void);

#else

PyMODINIT_FUNC init_dbus_glib_bindings(void);

#endif

#if defined(__GNUC__)

#   if __GNUC__ >= 3

#       define UNUSED __attribute__((__unused__))

#   else

#       define UNUSED /*nothing*/

#   endif

#else

#   define UNUSED /*nothing*/

#endif

static dbus_bool_t

dbus_py_glib_set_up_conn(DBusConnection *conn, void *data)

{

    GMainContext *ctx = (GMainContext *)data;

    Py_BEGIN_ALLOW_THREADS

    dbus_connection_setup_with_g_main(conn, ctx);

    Py_END_ALLOW_THREADS

    return 1;

}

static dbus_bool_t

dbus_py_glib_set_up_srv(DBusServer *srv, void *data)

{

    GMainContext *ctx = (GMainContext *)data;

    Py_BEGIN_ALLOW_THREADS

    dbus_server_setup_with_g_main(srv, ctx);

    Py_END_ALLOW_THREADS

    return 1;

}

static void

dbus_py_glib_unref_mainctx(void *data)

{

    if (data)

        g_main_context_unref((GMainContext *)data);

}

/* Generate a dbus-python NativeMainLoop wrapper from a GLib main loop */

static PyObject *

dbus_glib_native_mainloop(GMainContext *ctx)

{

    PyObject *loop = DBusPyNativeMainLoop_New4(dbus_py_glib_set_up_conn,

                                               dbus_py_glib_set_up_srv,

                                               dbus_py_glib_unref_mainctx,

                                               ctx ? g_main_context_ref(ctx)

                                                   : NULL);

    if (!loop && ctx) {

        g_main_context_unref(ctx);

    }

    return loop;

}

PyDoc_STRVAR(module_doc, "");

PyDoc_STRVAR(DBusGMainLoop__doc__,

"DBusGMainLoop([set_as_default=False]) -> NativeMainLoop\n"

"\n"

"Return a NativeMainLoop object which can be used to\n"

"represent the default GLib main context in dbus-python.\n"

"\n"

"If the keyword argument set_as_default is given and is true, set the new\n"

"main loop as the default for all new Connection or Bus instances.\n"

"\n"

"Non-default main contexts are not currently supported.\n");

static PyObject *

DBusGMainLoop (PyObject *always_null UNUSED, PyObject *args, PyObject *kwargs)

{

    PyObject *mainloop, *function, *result;

    int set_as_default = 0;

    static char *argnames[] = {"set_as_default", NULL};

    if (PyTuple_Size(args) != 0) {

        PyErr_SetString(PyExc_TypeError, "DBusGMainLoop() takes no "

                                         "positional arguments");

        return NULL;

    }

    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", argnames,

                                     &set_as_default)) {

        return NULL;

    }

    mainloop = dbus_glib_native_mainloop(NULL);

    if (mainloop && set_as_default) {

        if (!_dbus_bindings_module) {

            PyErr_SetString(PyExc_ImportError, "_dbus_bindings not imported");

            Py_CLEAR(mainloop);

            return NULL;

        }

        function = PyObject_GetAttrString(_dbus_bindings_module,

                                          "set_default_main_loop");

        if (!function) {

            Py_CLEAR(mainloop);

            return NULL;

        }

        result = PyObject_CallFunctionObjArgs(function, mainloop, NULL);

        Py_CLEAR(function);

        if (!result) {

            Py_CLEAR(mainloop);

            return NULL;

        }

        Py_CLEAR(result);

    }

    return mainloop;

}

PyDoc_STRVAR(setup_with_g_main__doc__,

"setup_with_g_main(conn: dbus.Connection)\n"

"\n"

"Deprecated.\n");

static PyObject *

setup_with_g_main (PyObject *always_null UNUSED, PyObject *args)

{

    DBusConnection *dbc;

    PyObject *conn;

    if (!PyArg_ParseTuple(args, "O:setup_with_g_main", &conn)) return NULL;

    dbc = DBusPyConnection_BorrowDBusConnection (conn);

    if (!dbc) return NULL;

    dbus_py_glib_set_up_conn(dbc, NULL);

    Py_RETURN_NONE;

}

PyDoc_STRVAR(gthreads_init__doc__,

"gthreads_init()");

static PyObject *

gthreads_init (PyObject *always_null UNUSED, PyObject *no_args UNUSED)

{

    dbus_g_thread_init();

    Py_RETURN_NONE;

}

static PyMethodDef module_functions[] = {

    {"setup_with_g_main", setup_with_g_main, METH_VARARGS,

     setup_with_g_main__doc__},

    {"gthreads_init", gthreads_init, METH_NOARGS, gthreads_init__doc__},

    {"DBusGMainLoop", (PyCFunction)DBusGMainLoop,

     METH_VARARGS|METH_KEYWORDS, DBusGMainLoop__doc__},

    {NULL, NULL, 0, NULL}

};

#ifdef PY3

PyMODINIT_FUNC

PyInit__dbus_glib_bindings(void)

{

    PyObject *this_module;

    static struct PyModuleDef moduledef = {

        PyModuleDef_HEAD_INIT,

        "_dbus_glib_bindings",  /* m_name */

        module_doc,             /* m_doc */

        -1,                     /* m_size */

        module_functions,       /* m_methods */

        NULL,                   /* m_reload */

        NULL,                   /* m_traverse */

        NULL,                   /* m_clear */

        NULL                    /* m_free */

    };

    if (import_dbus_bindings("_dbus_glib_bindings") < 0)

        return NULL;

    if (!(this_module = PyModule_Create(&moduledef))) {

        return NULL;

    }

    return this_module;

}

#else

PyMODINIT_FUNC

init_dbus_glib_bindings(void)

{

    PyObject *this_module;

    if (import_dbus_bindings("_dbus_glib_bindings") < 0) return;

    this_module = Py_InitModule3 ("_dbus_glib_bindings", module_functions,

                                  module_doc);

    if (!this_module) return;

}

#endif

/* vim:set ft=c cino< sw=4 sts=4 et: */