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cpython/Include/datetime.h at 2.7 · python-emscripten/cpython · GitHub
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/* datetime.h
*/
#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
long
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 \
long 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
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
PyObject
*
tzinfo
;
}
PyDateTime_DateTime
;
/* hastzinfo true */
/* Apply for date and datetime instances. */
#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])
/* 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 structure for C API. */
typedef
struct
{
/* type objects */
PyTypeObject
*
DateType
;
PyTypeObject
*
DateTimeType
;
PyTypeObject
*
TimeType
;
PyTypeObject
*
DeltaType
;
PyTypeObject
*
TZInfoType
;
/* 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
*
);
/* constructors for the DB API */
PyObject
*
(
*
DateTime_FromTimestamp
)(
PyObject
*
,
PyObject
*
,
PyObject
*
);
PyObject
*
(
*
Date_FromTimestamp
)(
PyObject
*
,
PyObject
*
);
}
PyDateTime_CAPI
;
#define
PyDateTime_CAPSULE_NAME
"datetime.datetime_CAPI"
/* "magic" constant used to partially protect against developer mistakes. */
#define
DATETIME_API_MAGIC
0x414548d5
#ifdef
Py_BUILD_CORE
/* Macros for type checking when building the Python core. */
#define
PyDate_Check
(
op
) PyObject_TypeCheck(op, &PyDateTime_DateType)
#define
PyDate_CheckExact
(
op
) (Py_TYPE(op) == &PyDateTime_DateType)
#define
PyDateTime_Check
(
op
) PyObject_TypeCheck(op, &PyDateTime_DateTimeType)
#define
PyDateTime_CheckExact
(
op
) (Py_TYPE(op) == &PyDateTime_DateTimeType)
#define
PyTime_Check
(
op
) PyObject_TypeCheck(op, &PyDateTime_TimeType)
#define
PyTime_CheckExact
(
op
) (Py_TYPE(op) == &PyDateTime_TimeType)
#define
PyDelta_Check
(
op
) PyObject_TypeCheck(op, &PyDateTime_DeltaType)
#define
PyDelta_CheckExact
(
op
) (Py_TYPE(op) == &PyDateTime_DeltaType)
#define
PyTZInfo_Check
(
op
) PyObject_TypeCheck(op, &PyDateTime_TZInfoType)
#define
PyTZInfo_CheckExact
(
op
) (Py_TYPE(op) == &PyDateTime_TZInfoType)
#else
/* 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)
/* Macros for type checking when not building the Python core. */
#define
PyDate_Check
(
op
) PyObject_TypeCheck(op, PyDateTimeAPI->DateType)
#define
PyDate_CheckExact
(
op
) (Py_TYPE(op) == PyDateTimeAPI->DateType)
#define
PyDateTime_Check
(
op
) PyObject_TypeCheck(op, PyDateTimeAPI->DateTimeType)
#define
PyDateTime_CheckExact
(
op
) (Py_TYPE(op) == PyDateTimeAPI->DateTimeType)
#define
PyTime_Check
(
op
) PyObject_TypeCheck(op, PyDateTimeAPI->TimeType)
#define
PyTime_CheckExact
(
op
) (Py_TYPE(op) == PyDateTimeAPI->TimeType)
#define
PyDelta_Check
(
op
) PyObject_TypeCheck(op, PyDateTimeAPI->DeltaType)
#define
PyDelta_CheckExact
(
op
) (Py_TYPE(op) == PyDateTimeAPI->DeltaType)
#define
PyTZInfo_Check
(
op
) PyObject_TypeCheck(op, PyDateTimeAPI->TZInfoType)
#define
PyTZInfo_CheckExact
(
op
) (Py_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
PyTime_FromTime
(
hour
,
minute
,
second
,
usecond
) \
PyDateTimeAPI->Time_FromTime(hour, minute, second, usecond, \
Py_None, PyDateTimeAPI->TimeType)
#define
PyDelta_FromDSU
(
days
,
seconds
,
useconds
) \
PyDateTimeAPI->Delta_FromDelta(days, seconds, useconds, 1, \
PyDateTimeAPI->DeltaType)
/* 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
/* Py_BUILD_CORE */
#ifdef
__cplusplus
}
#endif
#endif
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