annotate mercurial/cext/util.h @ 33352:967ac37f3d45

cleanupnode: do not use generator for node mapping The 'successors' part of the mappings used of be a tuple. This avoid issue from code consuming the generator "by mistake". For example, an extension inspecting the mapping content used to be able to iterate over the successors mapping without consequence. Since the mapping are small we do not expect any performance impact we use tuple again for this.
author Octobus <contact@octobus.net>
date Sun, 09 Jul 2017 15:11:19 +0200
parents 7640584e697c
children 5866ba5e9c48
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4494fb02d549 util.h: Utility macros for handling different Python APIs.
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1 /*
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2 util.h - utility functions for interfacing with the various python APIs.
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3
4494fb02d549 util.h: Utility macros for handling different Python APIs.
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4 This software may be used and distributed according to the terms of
4494fb02d549 util.h: Utility macros for handling different Python APIs.
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5 the GNU General Public License, incorporated herein by reference.
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6 */
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7
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8 #ifndef _HG_UTIL_H_
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9 #define _HG_UTIL_H_
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10
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11 #include "compat.h"
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12
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13 #if PY_MAJOR_VERSION >= 3
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14 #define IS_PY3K
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15 #endif
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16
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17 typedef struct {
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18 PyObject_HEAD
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19 char state;
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20 int mode;
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21 int size;
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22 int mtime;
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23 } dirstateTupleObject;
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24
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25 extern PyTypeObject dirstateTupleType;
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26 #define dirstate_tuple_check(op) (Py_TYPE(op) == &dirstateTupleType)
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27
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28 /* This should be kept in sync with normcasespecs in encoding.py. */
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29 enum normcase_spec {
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30 NORMCASE_LOWER = -1,
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31 NORMCASE_UPPER = 1,
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32 NORMCASE_OTHER = 0
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33 };
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34
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35 #define MIN(a, b) (((a)<(b))?(a):(b))
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36 /* VC9 doesn't include bool and lacks stdbool.h based on my searching */
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37 #if defined(_MSC_VER) || __STDC_VERSION__ < 199901L
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38 #define true 1
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39 #define false 0
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40 typedef unsigned char bool;
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41 #else
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42 #include <stdbool.h>
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43 #endif
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44
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45 static const int8_t hextable[256] = {
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46 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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47 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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48 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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49 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /* 0-9 */
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50 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* A-F */
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51 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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52 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* a-f */
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53 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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54 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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55 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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56 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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57 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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58 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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59 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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60 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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61 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
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62 };
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63
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64 static inline int hexdigit(const char *p, Py_ssize_t off)
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65 {
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66 int8_t val = hextable[(unsigned char)p[off]];
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67
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68 if (val >= 0) {
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69 return val;
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70 }
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71
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72 PyErr_SetString(PyExc_ValueError, "input contains non-hex character");
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73 return 0;
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74 }
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75
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76 #endif /* _HG_UTIL_H_ */