1/* prepare_protocol.c - the protocol for preparing values for SQLite
2 *
3 * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
4 *
5 * This file is part of pysqlite.
6 *
7 * This software is provided 'as-is', without any express or implied
8 * warranty.  In no event will the authors be held liable for any damages
9 * arising from the use of this software.
10 *
11 * Permission is granted to anyone to use this software for any purpose,
12 * including commercial applications, and to alter it and redistribute it
13 * freely, subject to the following restrictions:
14 *
15 * 1. The origin of this software must not be misrepresented; you must not
16 *    claim that you wrote the original software. If you use this software
17 *    in a product, an acknowledgment in the product documentation would be
18 *    appreciated but is not required.
19 * 2. Altered source versions must be plainly marked as such, and must not be
20 *    misrepresented as being the original software.
21 * 3. This notice may not be removed or altered from any source distribution.
22 */
23
24#include "prepare_protocol.h"
25
26static int
27pysqlite_prepare_protocol_init(pysqlite_PrepareProtocol *self, PyObject *args,
28                               PyObject *kwargs)
29{
30    return 0;
31}
32
33static int
34pysqlite_prepare_protocol_traverse(PyObject *self, visitproc visit, void *arg)
35{
36    Py_VISIT(Py_TYPE(self));
37    return 0;
38}
39
40static void
41pysqlite_prepare_protocol_dealloc(pysqlite_PrepareProtocol *self)
42{
43    PyTypeObject *tp = Py_TYPE(self);
44    PyObject_GC_UnTrack(self);
45    tp->tp_free(self);
46    Py_DECREF(tp);
47}
48
49PyDoc_STRVAR(doc, "PEP 246 style object adaption protocol type.");
50
51static PyType_Slot type_slots[] = {
52    {Py_tp_dealloc, pysqlite_prepare_protocol_dealloc},
53    {Py_tp_init, pysqlite_prepare_protocol_init},
54    {Py_tp_traverse, pysqlite_prepare_protocol_traverse},
55    {Py_tp_doc, (void *)doc},
56    {0, NULL},
57};
58
59static PyType_Spec type_spec = {
60    .name = MODULE_NAME ".PrepareProtocol",
61    .basicsize = sizeof(pysqlite_PrepareProtocol),
62    .flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
63              Py_TPFLAGS_IMMUTABLETYPE),
64    .slots = type_slots,
65};
66
67int
68pysqlite_prepare_protocol_setup_types(PyObject *module)
69{
70    PyObject *type = PyType_FromModuleAndSpec(module, &type_spec, NULL);
71    if (type == NULL) {
72        return -1;
73    }
74    pysqlite_state *state = pysqlite_get_state(module);
75    state->PrepareProtocolType = (PyTypeObject *)type;
76    return 0;
77}
78