codekingpro/portable-devtools

1/*  datetime.h2 */3#ifndef Py_LIMITED_API4#ifndef DATETIME_H5#define DATETIME_H6#ifdef __cplusplus7extern "C" {8#endif9 10/* Fields are packed into successive bytes, each viewed as unsigned and11 * big-endian, unless otherwise noted:12 *13 * byte offset14 *  0           year     2 bytes, 1-999915 *  2           month    1 byte, 1-1216 *  3           day      1 byte, 1-3117 *  4           hour     1 byte, 0-2318 *  5           minute   1 byte, 0-5919 *  6           second   1 byte, 0-5920 *  7           usecond  3 bytes, 0-99999921 * 1022 */23 24/* # of bytes for year, month, and day. */25#define _PyDateTime_DATE_DATASIZE 426 27/* # of bytes for hour, minute, second, and usecond. */28#define _PyDateTime_TIME_DATASIZE 629 30/* # of bytes for year, month, day, hour, minute, second, and usecond. */31#define _PyDateTime_DATETIME_DATASIZE 1032 33 34typedef struct35{36    PyObject_HEAD37    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 43typedef struct44{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 something58 * convenient to cast to, when getting at the hastzinfo member of objects59 * starting with _PyTZINFO_HEAD.60 */61typedef struct62{63    _PyTZINFO_HEAD64} _PyDateTime_BaseTZInfo;65 66/* All time objects are of PyDateTime_TimeType, but that can be allocated67 * in two ways, with or without a tzinfo member.  Without is the same as68 * tzinfo == None, but consumes less memory.  _PyDateTime_BaseTime is an69 * internal struct used to allocate the right amount of space for the70 * "without" case.71 */72#define _PyDateTime_TIMEHEAD    \73    _PyTZINFO_HEAD              \74    unsigned char data[_PyDateTime_TIME_DATASIZE];75 76typedef struct77{78    _PyDateTime_TIMEHEAD79} _PyDateTime_BaseTime;         /* hastzinfo false */80 81typedef struct82{83    _PyDateTime_TIMEHEAD84    unsigned char fold;85    PyObject *tzinfo;86} PyDateTime_Time;              /* hastzinfo true */87 88 89/* All datetime objects are of PyDateTime_DateTimeType, but that can be90 * 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 have92 * a hastzinfo member (although it's unused there).93 */94typedef struct95{96    _PyTZINFO_HEAD97    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 104typedef struct105{106    _PyDateTime_DATETIMEHEAD107} _PyDateTime_BaseDateTime;     /* hastzinfo false */108 109typedef struct110{111    _PyDateTime_DATETIMEHEAD112    unsigned char fold;113    PyObject *tzinfo;114} PyDateTime_DateTime;          /* hastzinfo true */115 116 117/* Apply for date and datetime instances. */118 119// o is a pointer to a time or a datetime object.120#define _PyDateTime_HAS_TZINFO(o)  (((_PyDateTime_BaseTZInfo *)(o))->hastzinfo)121 122#define PyDateTime_GET_YEAR(o)     ((((PyDateTime_Date*)(o))->data[0] << 8) | \123                     ((PyDateTime_Date*)(o))->data[1])124#define PyDateTime_GET_MONTH(o)    (((PyDateTime_Date*)(o))->data[2])125#define PyDateTime_GET_DAY(o)      (((PyDateTime_Date*)(o))->data[3])126 127#define PyDateTime_DATE_GET_HOUR(o)        (((PyDateTime_DateTime*)(o))->data[4])128#define PyDateTime_DATE_GET_MINUTE(o)      (((PyDateTime_DateTime*)(o))->data[5])129#define PyDateTime_DATE_GET_SECOND(o)      (((PyDateTime_DateTime*)(o))->data[6])130#define PyDateTime_DATE_GET_MICROSECOND(o)              \131    ((((PyDateTime_DateTime*)(o))->data[7] << 16) |       \132     (((PyDateTime_DateTime*)(o))->data[8] << 8)  |       \133      ((PyDateTime_DateTime*)(o))->data[9])134#define PyDateTime_DATE_GET_FOLD(o)        (((PyDateTime_DateTime*)(o))->fold)135#define PyDateTime_DATE_GET_TZINFO(o)      (_PyDateTime_HAS_TZINFO((o)) ? \136    ((PyDateTime_DateTime *)(o))->tzinfo : Py_None)137 138/* Apply for time instances. */139#define PyDateTime_TIME_GET_HOUR(o)        (((PyDateTime_Time*)(o))->data[0])140#define PyDateTime_TIME_GET_MINUTE(o)      (((PyDateTime_Time*)(o))->data[1])141#define PyDateTime_TIME_GET_SECOND(o)      (((PyDateTime_Time*)(o))->data[2])142#define PyDateTime_TIME_GET_MICROSECOND(o)              \143    ((((PyDateTime_Time*)(o))->data[3] << 16) |           \144     (((PyDateTime_Time*)(o))->data[4] << 8)  |           \145      ((PyDateTime_Time*)(o))->data[5])146#define PyDateTime_TIME_GET_FOLD(o)        (((PyDateTime_Time*)(o))->fold)147#define PyDateTime_TIME_GET_TZINFO(o)      (_PyDateTime_HAS_TZINFO(o) ? \148    ((PyDateTime_Time *)(o))->tzinfo : Py_None)149 150/* Apply for time delta instances */151#define PyDateTime_DELTA_GET_DAYS(o)         (((PyDateTime_Delta*)(o))->days)152#define PyDateTime_DELTA_GET_SECONDS(o)      (((PyDateTime_Delta*)(o))->seconds)153#define PyDateTime_DELTA_GET_MICROSECONDS(o)            \154    (((PyDateTime_Delta*)(o))->microseconds)155 156 157/* Define structure for C API. */158typedef struct {159    /* type objects */160    PyTypeObject *DateType;161    PyTypeObject *DateTimeType;162    PyTypeObject *TimeType;163    PyTypeObject *DeltaType;164    PyTypeObject *TZInfoType;165 166    /* singletons */167    PyObject *TimeZone_UTC;168 169    /* constructors */170    PyObject *(*Date_FromDate)(int, int, int, PyTypeObject*);171    PyObject *(*DateTime_FromDateAndTime)(int, int, int, int, int, int, int,172        PyObject*, PyTypeObject*);173    PyObject *(*Time_FromTime)(int, int, int, int, PyObject*, PyTypeObject*);174    PyObject *(*Delta_FromDelta)(int, int, int, int, PyTypeObject*);175    PyObject *(*TimeZone_FromTimeZone)(PyObject *offset, PyObject *name);176 177    /* constructors for the DB API */178    PyObject *(*DateTime_FromTimestamp)(PyObject*, PyObject*, PyObject*);179    PyObject *(*Date_FromTimestamp)(PyObject*, PyObject*);180 181    /* PEP 495 constructors */182    PyObject *(*DateTime_FromDateAndTimeAndFold)(int, int, int, int, int, int, int,183        PyObject*, int, PyTypeObject*);184    PyObject *(*Time_FromTimeAndFold)(int, int, int, int, PyObject*, int, PyTypeObject*);185 186} PyDateTime_CAPI;187 188#define PyDateTime_CAPSULE_NAME "datetime.datetime_CAPI"189 190 191/* This block is only used as part of the public API and should not be192 * included in _datetimemodule.c, which does not use the C API capsule.193 * See bpo-35081 for more details.194 * */195#ifndef _PY_DATETIME_IMPL196/* Define global variable for the C API and a macro for setting it. */197static PyDateTime_CAPI *PyDateTimeAPI = NULL;198 199#define PyDateTime_IMPORT \200    PyDateTimeAPI = (PyDateTime_CAPI *)PyCapsule_Import(PyDateTime_CAPSULE_NAME, 0)201 202/* Macro for access to the UTC singleton */203#define PyDateTime_TimeZone_UTC PyDateTimeAPI->TimeZone_UTC204 205/* Macros for type checking when not building the Python core. */206#define PyDate_Check(op) PyObject_TypeCheck((op), PyDateTimeAPI->DateType)207#define PyDate_CheckExact(op) Py_IS_TYPE((op), PyDateTimeAPI->DateType)208 209#define PyDateTime_Check(op) PyObject_TypeCheck((op), PyDateTimeAPI->DateTimeType)210#define PyDateTime_CheckExact(op) Py_IS_TYPE((op), PyDateTimeAPI->DateTimeType)211 212#define PyTime_Check(op) PyObject_TypeCheck((op), PyDateTimeAPI->TimeType)213#define PyTime_CheckExact(op) Py_IS_TYPE((op), PyDateTimeAPI->TimeType)214 215#define PyDelta_Check(op) PyObject_TypeCheck((op), PyDateTimeAPI->DeltaType)216#define PyDelta_CheckExact(op) Py_IS_TYPE((op), PyDateTimeAPI->DeltaType)217 218#define PyTZInfo_Check(op) PyObject_TypeCheck((op), PyDateTimeAPI->TZInfoType)219#define PyTZInfo_CheckExact(op) Py_IS_TYPE((op), PyDateTimeAPI->TZInfoType)220 221 222/* Macros for accessing constructors in a simplified fashion. */223#define PyDate_FromDate(year, month, day) \224    PyDateTimeAPI->Date_FromDate((year), (month), (day), PyDateTimeAPI->DateType)225 226#define PyDateTime_FromDateAndTime(year, month, day, hour, min, sec, usec) \227    PyDateTimeAPI->DateTime_FromDateAndTime((year), (month), (day), (hour), \228        (min), (sec), (usec), Py_None, PyDateTimeAPI->DateTimeType)229 230#define PyDateTime_FromDateAndTimeAndFold(year, month, day, hour, min, sec, usec, fold) \231    PyDateTimeAPI->DateTime_FromDateAndTimeAndFold((year), (month), (day), (hour), \232        (min), (sec), (usec), Py_None, (fold), PyDateTimeAPI->DateTimeType)233 234#define PyTime_FromTime(hour, minute, second, usecond) \235    PyDateTimeAPI->Time_FromTime((hour), (minute), (second), (usecond), \236        Py_None, PyDateTimeAPI->TimeType)237 238#define PyTime_FromTimeAndFold(hour, minute, second, usecond, fold) \239    PyDateTimeAPI->Time_FromTimeAndFold((hour), (minute), (second), (usecond), \240        Py_None, (fold), PyDateTimeAPI->TimeType)241 242#define PyDelta_FromDSU(days, seconds, useconds) \243    PyDateTimeAPI->Delta_FromDelta((days), (seconds), (useconds), 1, \244        PyDateTimeAPI->DeltaType)245 246#define PyTimeZone_FromOffset(offset) \247    PyDateTimeAPI->TimeZone_FromTimeZone((offset), NULL)248 249#define PyTimeZone_FromOffsetAndName(offset, name) \250    PyDateTimeAPI->TimeZone_FromTimeZone((offset), (name))251 252/* Macros supporting the DB API. */253#define PyDateTime_FromTimestamp(args) \254    PyDateTimeAPI->DateTime_FromTimestamp( \255        (PyObject*) (PyDateTimeAPI->DateTimeType), (args), NULL)256 257#define PyDate_FromTimestamp(args) \258    PyDateTimeAPI->Date_FromTimestamp( \259        (PyObject*) (PyDateTimeAPI->DateType), (args))260 261#endif   /* !defined(_PY_DATETIME_IMPL) */262 263#ifdef __cplusplus264}265#endif266#endif267#endif /* !Py_LIMITED_API */268