mirror of https://github.com/python/cpython.git
268 lines
9.4 KiB
C
268 lines
9.4 KiB
C
/* datetime.h
|
|
*/
|
|
#ifndef Py_LIMITED_API
|
|
#ifndef DATETIME_H
|
|
#define DATETIME_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Fields are packed into successive bytes, each viewed as unsigned and
|
|
* big-endian, unless otherwise noted:
|
|
*
|
|
* byte offset
|
|
* 0 year 2 bytes, 1-9999
|
|
* 2 month 1 byte, 1-12
|
|
* 3 day 1 byte, 1-31
|
|
* 4 hour 1 byte, 0-23
|
|
* 5 minute 1 byte, 0-59
|
|
* 6 second 1 byte, 0-59
|
|
* 7 usecond 3 bytes, 0-999999
|
|
* 10
|
|
*/
|
|
|
|
/* # of bytes for year, month, and day. */
|
|
#define _PyDateTime_DATE_DATASIZE 4
|
|
|
|
/* # of bytes for hour, minute, second, and usecond. */
|
|
#define _PyDateTime_TIME_DATASIZE 6
|
|
|
|
/* # of bytes for year, month, day, hour, minute, second, and usecond. */
|
|
#define _PyDateTime_DATETIME_DATASIZE 10
|
|
|
|
|
|
typedef struct
|
|
{
|
|
PyObject_HEAD
|
|
Py_hash_t hashcode; /* -1 when unknown */
|
|
int days; /* -MAX_DELTA_DAYS <= days <= MAX_DELTA_DAYS */
|
|
int seconds; /* 0 <= seconds < 24*3600 is invariant */
|
|
int microseconds; /* 0 <= microseconds < 1000000 is invariant */
|
|
} PyDateTime_Delta;
|
|
|
|
typedef struct
|
|
{
|
|
PyObject_HEAD /* a pure abstract base class */
|
|
} PyDateTime_TZInfo;
|
|
|
|
|
|
/* The datetime and time types have hashcodes, and an optional tzinfo member,
|
|
* present if and only if hastzinfo is true.
|
|
*/
|
|
#define _PyTZINFO_HEAD \
|
|
PyObject_HEAD \
|
|
Py_hash_t hashcode; \
|
|
char hastzinfo; /* boolean flag */
|
|
|
|
/* No _PyDateTime_BaseTZInfo is allocated; it's just to have something
|
|
* convenient to cast to, when getting at the hastzinfo member of objects
|
|
* starting with _PyTZINFO_HEAD.
|
|
*/
|
|
typedef struct
|
|
{
|
|
_PyTZINFO_HEAD
|
|
} _PyDateTime_BaseTZInfo;
|
|
|
|
/* All time objects are of PyDateTime_TimeType, but that can be allocated
|
|
* in two ways, with or without a tzinfo member. Without is the same as
|
|
* tzinfo == None, but consumes less memory. _PyDateTime_BaseTime is an
|
|
* internal struct used to allocate the right amount of space for the
|
|
* "without" case.
|
|
*/
|
|
#define _PyDateTime_TIMEHEAD \
|
|
_PyTZINFO_HEAD \
|
|
unsigned char data[_PyDateTime_TIME_DATASIZE];
|
|
|
|
typedef struct
|
|
{
|
|
_PyDateTime_TIMEHEAD
|
|
} _PyDateTime_BaseTime; /* hastzinfo false */
|
|
|
|
typedef struct
|
|
{
|
|
_PyDateTime_TIMEHEAD
|
|
unsigned char fold;
|
|
PyObject *tzinfo;
|
|
} PyDateTime_Time; /* hastzinfo true */
|
|
|
|
|
|
/* All datetime objects are of PyDateTime_DateTimeType, but that can be
|
|
* allocated in two ways too, just like for time objects above. In addition,
|
|
* the plain date type is a base class for datetime, so it must also have
|
|
* a hastzinfo member (although it's unused there).
|
|
*/
|
|
typedef struct
|
|
{
|
|
_PyTZINFO_HEAD
|
|
unsigned char data[_PyDateTime_DATE_DATASIZE];
|
|
} PyDateTime_Date;
|
|
|
|
#define _PyDateTime_DATETIMEHEAD \
|
|
_PyTZINFO_HEAD \
|
|
unsigned char data[_PyDateTime_DATETIME_DATASIZE];
|
|
|
|
typedef struct
|
|
{
|
|
_PyDateTime_DATETIMEHEAD
|
|
} _PyDateTime_BaseDateTime; /* hastzinfo false */
|
|
|
|
typedef struct
|
|
{
|
|
_PyDateTime_DATETIMEHEAD
|
|
unsigned char fold;
|
|
PyObject *tzinfo;
|
|
} PyDateTime_DateTime; /* hastzinfo true */
|
|
|
|
|
|
/* Apply for date and datetime instances. */
|
|
|
|
// o is a pointer to a time or a datetime object.
|
|
#define _PyDateTime_HAS_TZINFO(o) (((_PyDateTime_BaseTZInfo *)(o))->hastzinfo)
|
|
|
|
#define PyDateTime_GET_YEAR(o) ((((PyDateTime_Date*)o)->data[0] << 8) | \
|
|
((PyDateTime_Date*)o)->data[1])
|
|
#define PyDateTime_GET_MONTH(o) (((PyDateTime_Date*)o)->data[2])
|
|
#define PyDateTime_GET_DAY(o) (((PyDateTime_Date*)o)->data[3])
|
|
|
|
#define PyDateTime_DATE_GET_HOUR(o) (((PyDateTime_DateTime*)o)->data[4])
|
|
#define PyDateTime_DATE_GET_MINUTE(o) (((PyDateTime_DateTime*)o)->data[5])
|
|
#define PyDateTime_DATE_GET_SECOND(o) (((PyDateTime_DateTime*)o)->data[6])
|
|
#define PyDateTime_DATE_GET_MICROSECOND(o) \
|
|
((((PyDateTime_DateTime*)o)->data[7] << 16) | \
|
|
(((PyDateTime_DateTime*)o)->data[8] << 8) | \
|
|
((PyDateTime_DateTime*)o)->data[9])
|
|
#define PyDateTime_DATE_GET_FOLD(o) (((PyDateTime_DateTime*)o)->fold)
|
|
#define PyDateTime_DATE_GET_TZINFO(o) (_PyDateTime_HAS_TZINFO(o) ? \
|
|
((PyDateTime_DateTime *)(o))->tzinfo : Py_None)
|
|
|
|
/* Apply for time instances. */
|
|
#define PyDateTime_TIME_GET_HOUR(o) (((PyDateTime_Time*)o)->data[0])
|
|
#define PyDateTime_TIME_GET_MINUTE(o) (((PyDateTime_Time*)o)->data[1])
|
|
#define PyDateTime_TIME_GET_SECOND(o) (((PyDateTime_Time*)o)->data[2])
|
|
#define PyDateTime_TIME_GET_MICROSECOND(o) \
|
|
((((PyDateTime_Time*)o)->data[3] << 16) | \
|
|
(((PyDateTime_Time*)o)->data[4] << 8) | \
|
|
((PyDateTime_Time*)o)->data[5])
|
|
#define PyDateTime_TIME_GET_FOLD(o) (((PyDateTime_Time*)o)->fold)
|
|
#define PyDateTime_TIME_GET_TZINFO(o) (_PyDateTime_HAS_TZINFO(o) ? \
|
|
((PyDateTime_Time *)(o))->tzinfo : Py_None)
|
|
|
|
/* Apply for time delta instances */
|
|
#define PyDateTime_DELTA_GET_DAYS(o) (((PyDateTime_Delta*)o)->days)
|
|
#define PyDateTime_DELTA_GET_SECONDS(o) (((PyDateTime_Delta*)o)->seconds)
|
|
#define PyDateTime_DELTA_GET_MICROSECONDS(o) \
|
|
(((PyDateTime_Delta*)o)->microseconds)
|
|
|
|
|
|
/* Define structure for C API. */
|
|
typedef struct {
|
|
/* type objects */
|
|
PyTypeObject *DateType;
|
|
PyTypeObject *DateTimeType;
|
|
PyTypeObject *TimeType;
|
|
PyTypeObject *DeltaType;
|
|
PyTypeObject *TZInfoType;
|
|
|
|
/* singletons */
|
|
PyObject *TimeZone_UTC;
|
|
|
|
/* constructors */
|
|
PyObject *(*Date_FromDate)(int, int, int, PyTypeObject*);
|
|
PyObject *(*DateTime_FromDateAndTime)(int, int, int, int, int, int, int,
|
|
PyObject*, PyTypeObject*);
|
|
PyObject *(*Time_FromTime)(int, int, int, int, PyObject*, PyTypeObject*);
|
|
PyObject *(*Delta_FromDelta)(int, int, int, int, PyTypeObject*);
|
|
PyObject *(*TimeZone_FromTimeZone)(PyObject *offset, PyObject *name);
|
|
|
|
/* constructors for the DB API */
|
|
PyObject *(*DateTime_FromTimestamp)(PyObject*, PyObject*, PyObject*);
|
|
PyObject *(*Date_FromTimestamp)(PyObject*, PyObject*);
|
|
|
|
/* PEP 495 constructors */
|
|
PyObject *(*DateTime_FromDateAndTimeAndFold)(int, int, int, int, int, int, int,
|
|
PyObject*, int, PyTypeObject*);
|
|
PyObject *(*Time_FromTimeAndFold)(int, int, int, int, PyObject*, int, PyTypeObject*);
|
|
|
|
} PyDateTime_CAPI;
|
|
|
|
#define PyDateTime_CAPSULE_NAME "datetime.datetime_CAPI"
|
|
|
|
|
|
/* This block is only used as part of the public API and should not be
|
|
* included in _datetimemodule.c, which does not use the C API capsule.
|
|
* See bpo-35081 for more details.
|
|
* */
|
|
#ifndef _PY_DATETIME_IMPL
|
|
/* Define global variable for the C API and a macro for setting it. */
|
|
static PyDateTime_CAPI *PyDateTimeAPI = NULL;
|
|
|
|
#define PyDateTime_IMPORT \
|
|
PyDateTimeAPI = (PyDateTime_CAPI *)PyCapsule_Import(PyDateTime_CAPSULE_NAME, 0)
|
|
|
|
/* Macro for access to the UTC singleton */
|
|
#define PyDateTime_TimeZone_UTC PyDateTimeAPI->TimeZone_UTC
|
|
|
|
/* Macros for type checking when not building the Python core. */
|
|
#define PyDate_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DateType)
|
|
#define PyDate_CheckExact(op) Py_IS_TYPE(op, PyDateTimeAPI->DateType)
|
|
|
|
#define PyDateTime_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DateTimeType)
|
|
#define PyDateTime_CheckExact(op) Py_IS_TYPE(op, PyDateTimeAPI->DateTimeType)
|
|
|
|
#define PyTime_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->TimeType)
|
|
#define PyTime_CheckExact(op) Py_IS_TYPE(op, PyDateTimeAPI->TimeType)
|
|
|
|
#define PyDelta_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DeltaType)
|
|
#define PyDelta_CheckExact(op) Py_IS_TYPE(op, PyDateTimeAPI->DeltaType)
|
|
|
|
#define PyTZInfo_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->TZInfoType)
|
|
#define PyTZInfo_CheckExact(op) Py_IS_TYPE(op, PyDateTimeAPI->TZInfoType)
|
|
|
|
|
|
/* Macros for accessing constructors in a simplified fashion. */
|
|
#define PyDate_FromDate(year, month, day) \
|
|
PyDateTimeAPI->Date_FromDate(year, month, day, PyDateTimeAPI->DateType)
|
|
|
|
#define PyDateTime_FromDateAndTime(year, month, day, hour, min, sec, usec) \
|
|
PyDateTimeAPI->DateTime_FromDateAndTime(year, month, day, hour, \
|
|
min, sec, usec, Py_None, PyDateTimeAPI->DateTimeType)
|
|
|
|
#define PyDateTime_FromDateAndTimeAndFold(year, month, day, hour, min, sec, usec, fold) \
|
|
PyDateTimeAPI->DateTime_FromDateAndTimeAndFold(year, month, day, hour, \
|
|
min, sec, usec, Py_None, fold, PyDateTimeAPI->DateTimeType)
|
|
|
|
#define PyTime_FromTime(hour, minute, second, usecond) \
|
|
PyDateTimeAPI->Time_FromTime(hour, minute, second, usecond, \
|
|
Py_None, PyDateTimeAPI->TimeType)
|
|
|
|
#define PyTime_FromTimeAndFold(hour, minute, second, usecond, fold) \
|
|
PyDateTimeAPI->Time_FromTimeAndFold(hour, minute, second, usecond, \
|
|
Py_None, fold, PyDateTimeAPI->TimeType)
|
|
|
|
#define PyDelta_FromDSU(days, seconds, useconds) \
|
|
PyDateTimeAPI->Delta_FromDelta(days, seconds, useconds, 1, \
|
|
PyDateTimeAPI->DeltaType)
|
|
|
|
#define PyTimeZone_FromOffset(offset) \
|
|
PyDateTimeAPI->TimeZone_FromTimeZone(offset, NULL)
|
|
|
|
#define PyTimeZone_FromOffsetAndName(offset, name) \
|
|
PyDateTimeAPI->TimeZone_FromTimeZone(offset, name)
|
|
|
|
/* Macros supporting the DB API. */
|
|
#define PyDateTime_FromTimestamp(args) \
|
|
PyDateTimeAPI->DateTime_FromTimestamp( \
|
|
(PyObject*) (PyDateTimeAPI->DateTimeType), args, NULL)
|
|
|
|
#define PyDate_FromTimestamp(args) \
|
|
PyDateTimeAPI->Date_FromTimestamp( \
|
|
(PyObject*) (PyDateTimeAPI->DateType), args)
|
|
|
|
#endif /* !defined(_PY_DATETIME_IMPL) */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|
|
#endif /* !Py_LIMITED_API */
|