util.h
74 lines
| 2.0 KiB
| text/x-c
|
CLexer
Yuya Nishihara
|
r32384 | /* | ||
| util.h - utility functions for interfacing with the various python APIs. | ||||
| This software may be used and distributed according to the terms of | ||||
| the GNU General Public License, incorporated herein by reference. | ||||
| */ | ||||
| #ifndef _HG_UTIL_H_ | ||||
| #define _HG_UTIL_H_ | ||||
| #include "compat.h" | ||||
| #if PY_MAJOR_VERSION >= 3 | ||||
| #define IS_PY3K | ||||
| #endif | ||||
|
Yuya Nishihara
|
r36636 | /* helper to switch things like string literal depending on Python version */ | ||
| #ifdef IS_PY3K | ||||
| #define PY23(py2, py3) py3 | ||||
| #else | ||||
| #define PY23(py2, py3) py2 | ||||
| #endif | ||||
Augie Fackler
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r34636 | /* clang-format off */ | ||
|
Yuya Nishihara
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r32384 | typedef struct { | ||
| PyObject_HEAD | ||||
| char state; | ||||
| int mode; | ||||
| int size; | ||||
| int mtime; | ||||
| } dirstateTupleObject; | ||||
|
Augie Fackler
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r34636 | /* clang-format on */ | ||
|
Yuya Nishihara
|
r32384 | |||
| extern PyTypeObject dirstateTupleType; | ||||
| #define dirstate_tuple_check(op) (Py_TYPE(op) == &dirstateTupleType) | ||||
André Sintzoff
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r35793 | #ifndef MIN | ||
|
Augie Fackler
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r34636 | #define MIN(a, b) (((a) < (b)) ? (a) : (b)) | ||
|
André Sintzoff
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r35793 | #endif | ||
|
Yuya Nishihara
|
r32384 | /* VC9 doesn't include bool and lacks stdbool.h based on my searching */ | ||
| #if defined(_MSC_VER) || __STDC_VERSION__ < 199901L | ||||
| #define true 1 | ||||
| #define false 0 | ||||
| typedef unsigned char bool; | ||||
| #else | ||||
| #include <stdbool.h> | ||||
| #endif | ||||
|
Yuya Nishihara
|
r33751 | static inline PyObject *_dict_new_presized(Py_ssize_t expected_size) | ||
| { | ||||
| /* _PyDict_NewPresized expects a minused parameter, but it actually | ||||
| creates a dictionary that's the nearest power of two bigger than the | ||||
| parameter. For example, with the initial minused = 1000, the | ||||
| dictionary created has size 1024. Of course in a lot of cases that | ||||
| can be greater than the maximum load factor Python's dict object | ||||
| expects (= 2/3), so as soon as we cross the threshold we'll resize | ||||
| anyway. So create a dictionary that's at least 3/2 the size. */ | ||||
| return _PyDict_NewPresized(((1 + expected_size) / 2) * 3); | ||||
| } | ||||
|
Augie Fackler
|
r40634 | /* Convert a PyInt or PyLong to a long. Returns false if there is an | ||
| error, in which case an exception will already have been set. */ | ||||
| static inline bool pylong_to_long(PyObject *pylong, long *out) | ||||
| { | ||||
| *out = PyLong_AsLong(pylong); | ||||
| /* Fast path to avoid hitting PyErr_Occurred if the value was obviously | ||||
| * not an error. */ | ||||
| if (*out != -1) { | ||||
| return true; | ||||
| } | ||||
| return PyErr_Occurred() == NULL; | ||||
| } | ||||
|
Yuya Nishihara
|
r32384 | #endif /* _HG_UTIL_H_ */ | ||