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#include <Python.h>
#include "structmember.h"
typedef struct {
PyObject_HEAD
int online; /* this should really be onstrained to be a boolean */
PyObject *online_timestamp;
PyObject *first;
PyObject *last;
int number;
} gpsd;
static int
gpsd_traverse(gpsd *self, visitproc visit, void *arg)
{
if (self->first && visit(self->online_timestamp, arg) < 0)
return -1;
if (self->first && visit(self->first, arg) < 0)
return -1;
if (self->last && visit(self->last, arg) < 0)
return -1;
return 0;
}
static int
gpsd_clear(gpsd *self)
{
Py_XDECREF(self->online_timestamp);
self->online_timestamp = NULL;
Py_XDECREF(self->first);
self->first = NULL;
Py_XDECREF(self->last);
self->last = NULL;
return 0;
}
static void
gpsd_dealloc(gpsd* self)
{
gpsd_clear(self);
self->ob_type->tp_free((PyObject*)self);
}
static PyObject *
gpsd_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
gpsd *self;
self = (gpsd *)type->tp_alloc(type, 0);
if (self != NULL) {
self->online = 0;
// FIXME: must instantiate a new timestamp object here
self->first = PyString_FromString("");
if (self->first == NULL) {
Py_DECREF(self);
return NULL;
}
self->last = PyString_FromString("");
if (self->last == NULL) {
Py_DECREF(self);
return NULL;
}
self->number = 0;
}
return (PyObject *)self;
}
static int
gpsd_init(gpsd *self, PyObject *args, PyObject *kwds)
{
PyObject *first=NULL, *last=NULL;
static char *kwlist[] = {
"online",
"first",
"last",
"number",
NULL};
if (! PyArg_ParseTupleAndKeywords(args, kwds, "|iOOi", kwlist,
&self->online,
&first, &last,
&self->number))
return -1;
if (first) {
Py_XDECREF(self->first);
Py_INCREF(first);
self->first = first;
}
if (last) {
Py_XDECREF(self->last);
Py_INCREF(last);
self->last = last;
}
return 0;
}
static PyMemberDef gpsd_members[] = {
{"first", T_OBJECT_EX, offsetof(gpsd, first), 0,
"first name"},
{"last", T_OBJECT_EX, offsetof(gpsd, last), 0,
"last name"},
{"number", T_INT, offsetof(gpsd, number), 0,
"gpsd number"},
{NULL} /* Sentinel */
};
static PyObject *
gpsd_name(gpsd* self)
{
static PyObject *format = NULL;
PyObject *args, *result;
if (format == NULL) {
format = PyString_FromString("%s %s");
if (format == NULL)
return NULL;
}
if (self->first == NULL) {
PyErr_SetString(PyExc_AttributeError, "first");
return NULL;
}
if (self->last == NULL) {
PyErr_SetString(PyExc_AttributeError, "last");
return NULL;
}
args = Py_BuildValue("OO", self->first, self->last);
if (args == NULL)
return NULL;
result = PyString_Format(format, args);
Py_DECREF(args);
return result;
}
static PyMethodDef gpsd_methods[] = {
{"name", (PyCFunction)gpsd_name, METH_NOARGS,
"Return the name, combining the first and last name"
},
{NULL} /* Sentinel */
};
static PyTypeObject gpsdType = {
PyObject_HEAD_INIT(NULL)
0, /*ob_size*/
"gpsd.gpsd", /*tp_name*/
sizeof(gpsd), /*tp_basicsize*/
0, /*tp_itemsize*/
(destructor)gpsd_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, /*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 | Py_TPFLAGS_HAVE_GC, /*tp_flags*/
"gpsd objects", /* tp_doc */
(traverseproc)gpsd_traverse, /* tp_traverse */
(inquiry)gpsd_clear, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
gpsd_methods, /* tp_methods */
gpsd_members, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)gpsd_init, /* tp_init */
0, /* tp_alloc */
gpsd_new, /* tp_new */
};
static PyMethodDef module_methods[] = {
{NULL} /* Sentinel */
};
#ifndef PyMODINIT_FUNC /* declarations for DLL import/export */
#define PyMODINIT_FUNC void
#endif
PyMODINIT_FUNC
initgpsd(void)
{
PyObject* m;
if (PyType_Ready(&gpsdType) < 0)
return;
m = Py_InitModule3("gpsd", module_methods,
"Example module that creates an extension type.");
if (m == NULL)
return;
Py_INCREF(&gpsdType);
PyModule_AddObject(m, "gpsd", (PyObject *)&gpsdType);
}
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