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comparison CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/python3.8/datetime.h @ 69:33d812a61356

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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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67:0e9998148a16 69:33d812a61356
1 /* datetime.h
2 */
3 #ifndef Py_LIMITED_API
4 #ifndef DATETIME_H
5 #define DATETIME_H
6 #ifdef __cplusplus
7 extern "C" {
8 #endif
9
10 /* Fields are packed into successive bytes, each viewed as unsigned and
11 * big-endian, unless otherwise noted:
12 *
13 * byte offset
14 * 0 year 2 bytes, 1-9999
15 * 2 month 1 byte, 1-12
16 * 3 day 1 byte, 1-31
17 * 4 hour 1 byte, 0-23
18 * 5 minute 1 byte, 0-59
19 * 6 second 1 byte, 0-59
20 * 7 usecond 3 bytes, 0-999999
21 * 10
22 */
23
24 /* # of bytes for year, month, and day. */
25 #define _PyDateTime_DATE_DATASIZE 4
26
27 /* # of bytes for hour, minute, second, and usecond. */
28 #define _PyDateTime_TIME_DATASIZE 6
29
30 /* # of bytes for year, month, day, hour, minute, second, and usecond. */
31 #define _PyDateTime_DATETIME_DATASIZE 10
32
33
34 typedef struct
35 {
36 PyObject_HEAD
37 Py_hash_t hashcode; /* -1 when unknown */
38 int days; /* -MAX_DELTA_DAYS <= days <= MAX_DELTA_DAYS */
39 int seconds; /* 0 <= seconds < 24*3600 is invariant */
40 int microseconds; /* 0 <= microseconds < 1000000 is invariant */
41 } PyDateTime_Delta;
42
43 typedef struct
44 {
45 PyObject_HEAD /* a pure abstract base class */
46 } PyDateTime_TZInfo;
47
48
49 /* The datetime and time types have hashcodes, and an optional tzinfo member,
50 * present if and only if hastzinfo is true.
51 */
52 #define _PyTZINFO_HEAD \
53 PyObject_HEAD \
54 Py_hash_t hashcode; \
55 char hastzinfo; /* boolean flag */
56
57 /* No _PyDateTime_BaseTZInfo is allocated; it's just to have something
58 * convenient to cast to, when getting at the hastzinfo member of objects
59 * starting with _PyTZINFO_HEAD.
60 */
61 typedef struct
62 {
63 _PyTZINFO_HEAD
64 } _PyDateTime_BaseTZInfo;
65
66 /* All time objects are of PyDateTime_TimeType, but that can be allocated
67 * in two ways, with or without a tzinfo member. Without is the same as
68 * tzinfo == None, but consumes less memory. _PyDateTime_BaseTime is an
69 * internal struct used to allocate the right amount of space for the
70 * "without" case.
71 */
72 #define _PyDateTime_TIMEHEAD \
73 _PyTZINFO_HEAD \
74 unsigned char data[_PyDateTime_TIME_DATASIZE];
75
76 typedef struct
77 {
78 _PyDateTime_TIMEHEAD
79 } _PyDateTime_BaseTime; /* hastzinfo false */
80
81 typedef struct
82 {
83 _PyDateTime_TIMEHEAD
84 unsigned char fold;
85 PyObject *tzinfo;
86 } PyDateTime_Time; /* hastzinfo true */
87
88
89 /* All datetime objects are of PyDateTime_DateTimeType, but that can be
90 * allocated in two ways too, just like for time objects above. In addition,
91 * the plain date type is a base class for datetime, so it must also have
92 * a hastzinfo member (although it's unused there).
93 */
94 typedef struct
95 {
96 _PyTZINFO_HEAD
97 unsigned char data[_PyDateTime_DATE_DATASIZE];
98 } PyDateTime_Date;
99
100 #define _PyDateTime_DATETIMEHEAD \
101 _PyTZINFO_HEAD \
102 unsigned char data[_PyDateTime_DATETIME_DATASIZE];
103
104 typedef struct
105 {
106 _PyDateTime_DATETIMEHEAD
107 } _PyDateTime_BaseDateTime; /* hastzinfo false */
108
109 typedef struct
110 {
111 _PyDateTime_DATETIMEHEAD
112 unsigned char fold;
113 PyObject *tzinfo;
114 } PyDateTime_DateTime; /* hastzinfo true */
115
116
117 /* Apply for date and datetime instances. */
118 #define PyDateTime_GET_YEAR(o) ((((PyDateTime_Date*)o)->data[0] << 8) | \
119 ((PyDateTime_Date*)o)->data[1])
120 #define PyDateTime_GET_MONTH(o) (((PyDateTime_Date*)o)->data[2])
121 #define PyDateTime_GET_DAY(o) (((PyDateTime_Date*)o)->data[3])
122
123 #define PyDateTime_DATE_GET_HOUR(o) (((PyDateTime_DateTime*)o)->data[4])
124 #define PyDateTime_DATE_GET_MINUTE(o) (((PyDateTime_DateTime*)o)->data[5])
125 #define PyDateTime_DATE_GET_SECOND(o) (((PyDateTime_DateTime*)o)->data[6])
126 #define PyDateTime_DATE_GET_MICROSECOND(o) \
127 ((((PyDateTime_DateTime*)o)->data[7] << 16) | \
128 (((PyDateTime_DateTime*)o)->data[8] << 8) | \
129 ((PyDateTime_DateTime*)o)->data[9])
130 #define PyDateTime_DATE_GET_FOLD(o) (((PyDateTime_DateTime*)o)->fold)
131
132 /* Apply for time instances. */
133 #define PyDateTime_TIME_GET_HOUR(o) (((PyDateTime_Time*)o)->data[0])
134 #define PyDateTime_TIME_GET_MINUTE(o) (((PyDateTime_Time*)o)->data[1])
135 #define PyDateTime_TIME_GET_SECOND(o) (((PyDateTime_Time*)o)->data[2])
136 #define PyDateTime_TIME_GET_MICROSECOND(o) \
137 ((((PyDateTime_Time*)o)->data[3] << 16) | \
138 (((PyDateTime_Time*)o)->data[4] << 8) | \
139 ((PyDateTime_Time*)o)->data[5])
140 #define PyDateTime_TIME_GET_FOLD(o) (((PyDateTime_Time*)o)->fold)
141
142 /* Apply for time delta instances */
143 #define PyDateTime_DELTA_GET_DAYS(o) (((PyDateTime_Delta*)o)->days)
144 #define PyDateTime_DELTA_GET_SECONDS(o) (((PyDateTime_Delta*)o)->seconds)
145 #define PyDateTime_DELTA_GET_MICROSECONDS(o) \
146 (((PyDateTime_Delta*)o)->microseconds)
147
148
149 /* Define structure for C API. */
150 typedef struct {
151 /* type objects */
152 PyTypeObject *DateType;
153 PyTypeObject *DateTimeType;
154 PyTypeObject *TimeType;
155 PyTypeObject *DeltaType;
156 PyTypeObject *TZInfoType;
157
158 /* singletons */
159 PyObject *TimeZone_UTC;
160
161 /* constructors */
162 PyObject *(*Date_FromDate)(int, int, int, PyTypeObject*);
163 PyObject *(*DateTime_FromDateAndTime)(int, int, int, int, int, int, int,
164 PyObject*, PyTypeObject*);
165 PyObject *(*Time_FromTime)(int, int, int, int, PyObject*, PyTypeObject*);
166 PyObject *(*Delta_FromDelta)(int, int, int, int, PyTypeObject*);
167 PyObject *(*TimeZone_FromTimeZone)(PyObject *offset, PyObject *name);
168
169 /* constructors for the DB API */
170 PyObject *(*DateTime_FromTimestamp)(PyObject*, PyObject*, PyObject*);
171 PyObject *(*Date_FromTimestamp)(PyObject*, PyObject*);
172
173 /* PEP 495 constructors */
174 PyObject *(*DateTime_FromDateAndTimeAndFold)(int, int, int, int, int, int, int,
175 PyObject*, int, PyTypeObject*);
176 PyObject *(*Time_FromTimeAndFold)(int, int, int, int, PyObject*, int, PyTypeObject*);
177
178 } PyDateTime_CAPI;
179
180 #define PyDateTime_CAPSULE_NAME "datetime.datetime_CAPI"
181
182
183 /* This block is only used as part of the public API and should not be
184 * included in _datetimemodule.c, which does not use the C API capsule.
185 * See bpo-35081 for more details.
186 * */
187 #ifndef _PY_DATETIME_IMPL
188 /* Define global variable for the C API and a macro for setting it. */
189 static PyDateTime_CAPI *PyDateTimeAPI = NULL;
190
191 #define PyDateTime_IMPORT \
192 PyDateTimeAPI = (PyDateTime_CAPI *)PyCapsule_Import(PyDateTime_CAPSULE_NAME, 0)
193
194 /* Macro for access to the UTC singleton */
195 #define PyDateTime_TimeZone_UTC PyDateTimeAPI->TimeZone_UTC
196
197 /* Macros for type checking when not building the Python core. */
198 #define PyDate_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DateType)
199 #define PyDate_CheckExact(op) (Py_TYPE(op) == PyDateTimeAPI->DateType)
200
201 #define PyDateTime_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DateTimeType)
202 #define PyDateTime_CheckExact(op) (Py_TYPE(op) == PyDateTimeAPI->DateTimeType)
203
204 #define PyTime_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->TimeType)
205 #define PyTime_CheckExact(op) (Py_TYPE(op) == PyDateTimeAPI->TimeType)
206
207 #define PyDelta_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DeltaType)
208 #define PyDelta_CheckExact(op) (Py_TYPE(op) == PyDateTimeAPI->DeltaType)
209
210 #define PyTZInfo_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->TZInfoType)
211 #define PyTZInfo_CheckExact(op) (Py_TYPE(op) == PyDateTimeAPI->TZInfoType)
212
213
214 /* Macros for accessing constructors in a simplified fashion. */
215 #define PyDate_FromDate(year, month, day) \
216 PyDateTimeAPI->Date_FromDate(year, month, day, PyDateTimeAPI->DateType)
217
218 #define PyDateTime_FromDateAndTime(year, month, day, hour, min, sec, usec) \
219 PyDateTimeAPI->DateTime_FromDateAndTime(year, month, day, hour, \
220 min, sec, usec, Py_None, PyDateTimeAPI->DateTimeType)
221
222 #define PyDateTime_FromDateAndTimeAndFold(year, month, day, hour, min, sec, usec, fold) \
223 PyDateTimeAPI->DateTime_FromDateAndTimeAndFold(year, month, day, hour, \
224 min, sec, usec, Py_None, fold, PyDateTimeAPI->DateTimeType)
225
226 #define PyTime_FromTime(hour, minute, second, usecond) \
227 PyDateTimeAPI->Time_FromTime(hour, minute, second, usecond, \
228 Py_None, PyDateTimeAPI->TimeType)
229
230 #define PyTime_FromTimeAndFold(hour, minute, second, usecond, fold) \
231 PyDateTimeAPI->Time_FromTimeAndFold(hour, minute, second, usecond, \
232 Py_None, fold, PyDateTimeAPI->TimeType)
233
234 #define PyDelta_FromDSU(days, seconds, useconds) \
235 PyDateTimeAPI->Delta_FromDelta(days, seconds, useconds, 1, \
236 PyDateTimeAPI->DeltaType)
237
238 #define PyTimeZone_FromOffset(offset) \
239 PyDateTimeAPI->TimeZone_FromTimeZone(offset, NULL)
240
241 #define PyTimeZone_FromOffsetAndName(offset, name) \
242 PyDateTimeAPI->TimeZone_FromTimeZone(offset, name)
243
244 /* Macros supporting the DB API. */
245 #define PyDateTime_FromTimestamp(args) \
246 PyDateTimeAPI->DateTime_FromTimestamp( \
247 (PyObject*) (PyDateTimeAPI->DateTimeType), args, NULL)
248
249 #define PyDate_FromTimestamp(args) \
250 PyDateTimeAPI->Date_FromTimestamp( \
251 (PyObject*) (PyDateTimeAPI->DateType), args)
252
253 #endif /* !defined(_PY_DATETIME_IMPL) */
254
255 #ifdef __cplusplus
256 }
257 #endif
258 #endif
259 #endif /* !Py_LIMITED_API */