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- /* datetime.h
- */
-
- #ifndef DATETIME_H
- #define DATETIME_H
-
- /* 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 clase */
- } 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 PyDate_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateType)
- #define PyDate_CheckExact(op) ((op)->ob_type == &PyDateTime_DateType)
-
- #define PyDateTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateTimeType)
- #define PyDateTime_CheckExact(op) ((op)->ob_type == &PyDateTime_DateTimeType)
-
- #define PyTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_TimeType)
- #define PyTime_CheckExact(op) ((op)->ob_type == &PyDateTime_TimeType)
-
- #define PyDelta_Check(op) PyObject_TypeCheck(op, &PyDateTime_DeltaType)
- #define PyDelta_CheckExact(op) ((op)->ob_type == &PyDateTime_DeltaType)
-
- #define PyTZInfo_Check(op) PyObject_TypeCheck(op, &PyDateTime_TZInfoType)
- #define PyTZInfo_CheckExact(op) ((op)->ob_type == &PyDateTime_TZInfoType)
-
- #endif
-