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py3: add PY23() macro to switch string literal depending on python version...
Yuya Nishihara -
r36636:9a639a33 default
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@@ -1,54 +1,61 b''
1 /*
1 /*
2 util.h - utility functions for interfacing with the various python APIs.
2 util.h - utility functions for interfacing with the various python APIs.
3
3
4 This software may be used and distributed according to the terms of
4 This software may be used and distributed according to the terms of
5 the GNU General Public License, incorporated herein by reference.
5 the GNU General Public License, incorporated herein by reference.
6 */
6 */
7
7
8 #ifndef _HG_UTIL_H_
8 #ifndef _HG_UTIL_H_
9 #define _HG_UTIL_H_
9 #define _HG_UTIL_H_
10
10
11 #include "compat.h"
11 #include "compat.h"
12
12
13 #if PY_MAJOR_VERSION >= 3
13 #if PY_MAJOR_VERSION >= 3
14 #define IS_PY3K
14 #define IS_PY3K
15 #endif
15 #endif
16
16
17 /* helper to switch things like string literal depending on Python version */
18 #ifdef IS_PY3K
19 #define PY23(py2, py3) py3
20 #else
21 #define PY23(py2, py3) py2
22 #endif
23
17 /* clang-format off */
24 /* clang-format off */
18 typedef struct {
25 typedef struct {
19 PyObject_HEAD
26 PyObject_HEAD
20 char state;
27 char state;
21 int mode;
28 int mode;
22 int size;
29 int size;
23 int mtime;
30 int mtime;
24 } dirstateTupleObject;
31 } dirstateTupleObject;
25 /* clang-format on */
32 /* clang-format on */
26
33
27 extern PyTypeObject dirstateTupleType;
34 extern PyTypeObject dirstateTupleType;
28 #define dirstate_tuple_check(op) (Py_TYPE(op) == &dirstateTupleType)
35 #define dirstate_tuple_check(op) (Py_TYPE(op) == &dirstateTupleType)
29
36
30 #ifndef MIN
37 #ifndef MIN
31 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
38 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
32 #endif
39 #endif
33 /* VC9 doesn't include bool and lacks stdbool.h based on my searching */
40 /* VC9 doesn't include bool and lacks stdbool.h based on my searching */
34 #if defined(_MSC_VER) || __STDC_VERSION__ < 199901L
41 #if defined(_MSC_VER) || __STDC_VERSION__ < 199901L
35 #define true 1
42 #define true 1
36 #define false 0
43 #define false 0
37 typedef unsigned char bool;
44 typedef unsigned char bool;
38 #else
45 #else
39 #include <stdbool.h>
46 #include <stdbool.h>
40 #endif
47 #endif
41
48
42 static inline PyObject *_dict_new_presized(Py_ssize_t expected_size)
49 static inline PyObject *_dict_new_presized(Py_ssize_t expected_size)
43 {
50 {
44 /* _PyDict_NewPresized expects a minused parameter, but it actually
51 /* _PyDict_NewPresized expects a minused parameter, but it actually
45 creates a dictionary that's the nearest power of two bigger than the
52 creates a dictionary that's the nearest power of two bigger than the
46 parameter. For example, with the initial minused = 1000, the
53 parameter. For example, with the initial minused = 1000, the
47 dictionary created has size 1024. Of course in a lot of cases that
54 dictionary created has size 1024. Of course in a lot of cases that
48 can be greater than the maximum load factor Python's dict object
55 can be greater than the maximum load factor Python's dict object
49 expects (= 2/3), so as soon as we cross the threshold we'll resize
56 expects (= 2/3), so as soon as we cross the threshold we'll resize
50 anyway. So create a dictionary that's at least 3/2 the size. */
57 anyway. So create a dictionary that's at least 3/2 the size. */
51 return _PyDict_NewPresized(((1 + expected_size) / 2) * 3);
58 return _PyDict_NewPresized(((1 + expected_size) / 2) * 3);
52 }
59 }
53
60
54 #endif /* _HG_UTIL_H_ */
61 #endif /* _HG_UTIL_H_ */
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