1 /* prepare_protocol.c - the protocol for preparing values for SQLite
2 *
3 * Copyright (C) 2005-2010 Gerhard Häring <[email protected]>
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
26 static int
pysqlite_prepare_protocol_init(pysqlite_PrepareProtocol * self,PyObject * args,PyObject * kwargs)27 pysqlite_prepare_protocol_init(pysqlite_PrepareProtocol *self, PyObject *args,
28 PyObject *kwargs)
29 {
30 return 0;
31 }
32
33 static int
pysqlite_prepare_protocol_traverse(PyObject * self,visitproc visit,void * arg)34 pysqlite_prepare_protocol_traverse(PyObject *self, visitproc visit, void *arg)
35 {
36 Py_VISIT(Py_TYPE(self));
37 return 0;
38 }
39
40 static void
pysqlite_prepare_protocol_dealloc(pysqlite_PrepareProtocol * self)41 pysqlite_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
49 PyDoc_STRVAR(doc, "PEP 246 style object adaption protocol type.");
50
51 static 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
59 static 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
67 int
pysqlite_prepare_protocol_setup_types(PyObject * module)68 pysqlite_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