diff options
Diffstat (limited to 'Modules/datetimemodule.c')
| -rw-r--r-- | Modules/datetimemodule.c | 335 |
1 files changed, 170 insertions, 165 deletions
diff --git a/Modules/datetimemodule.c b/Modules/datetimemodule.c index 3679338..e85c955 100644 --- a/Modules/datetimemodule.c +++ b/Modules/datetimemodule.c @@ -562,6 +562,168 @@ normalize_datetime(int *year, int *month, int *day, } /* --------------------------------------------------------------------------- + * Basic object allocation: tp_alloc implementations. These allocate + * Python objects of the right size and type, and do the Python object- + * initialization bit. If there's not enough memory, they return NULL after + * setting MemoryError. All data members remain uninitialized trash. + * + * We abuse the tp_alloc "nitems" argument to communicate whether a tzinfo + * member is needed. This is ugly. + */ + +static PyObject * +time_alloc(PyTypeObject *type, int aware) +{ + PyObject *self; + + self = (PyObject *) + PyObject_MALLOC(aware ? + sizeof(PyDateTime_Time) : + sizeof(_PyDateTime_BaseTime)); + if (self == NULL) + return (PyObject *)PyErr_NoMemory(); + PyObject_INIT(self, type); + return self; +} + +static PyObject * +datetime_alloc(PyTypeObject *type, int aware) +{ + PyObject *self; + + self = (PyObject *) + PyObject_MALLOC(aware ? + sizeof(PyDateTime_DateTime) : + sizeof(_PyDateTime_BaseDateTime)); + if (self == NULL) + return (PyObject *)PyErr_NoMemory(); + PyObject_INIT(self, type); + return self; +} + +/* --------------------------------------------------------------------------- + * Helpers for setting object fields. These work on pointers to the + * appropriate base class. + */ + +/* For date and datetime. */ +static void +set_date_fields(PyDateTime_Date *self, int y, int m, int d) +{ + self->hashcode = -1; + SET_YEAR(self, y); + SET_MONTH(self, m); + SET_DAY(self, d); +} + +/* --------------------------------------------------------------------------- + * Create various objects, mostly without range checking. + */ + +/* Create a date instance with no range checking. */ +static PyObject * +new_date_ex(int year, int month, int day, PyTypeObject *type) +{ + PyDateTime_Date *self; + + self = (PyDateTime_Date *) (type->tp_alloc(type, 0)); + if (self != NULL) + set_date_fields(self, year, month, day); + return (PyObject *) self; +} + +#define new_date(year, month, day) \ + new_date_ex(year, month, day, &PyDateTime_DateType) + +/* Create a datetime instance with no range checking. */ +static PyObject * +new_datetime_ex(int year, int month, int day, int hour, int minute, + int second, int usecond, PyObject *tzinfo, PyTypeObject *type) +{ + PyDateTime_DateTime *self; + char aware = tzinfo != Py_None; + + self = (PyDateTime_DateTime *) (type->tp_alloc(type, aware)); + if (self != NULL) { + self->hastzinfo = aware; + set_date_fields((PyDateTime_Date *)self, year, month, day); + DATE_SET_HOUR(self, hour); + DATE_SET_MINUTE(self, minute); + DATE_SET_SECOND(self, second); + DATE_SET_MICROSECOND(self, usecond); + if (aware) { + Py_INCREF(tzinfo); + self->tzinfo = tzinfo; + } + } + return (PyObject *)self; +} + +#define new_datetime(y, m, d, hh, mm, ss, us, tzinfo) \ + new_datetime_ex(y, m, d, hh, mm, ss, us, tzinfo, \ + &PyDateTime_DateTimeType) + +/* Create a time instance with no range checking. */ +static PyObject * +new_time_ex(int hour, int minute, int second, int usecond, + PyObject *tzinfo, PyTypeObject *type) +{ + PyDateTime_Time *self; + char aware = tzinfo != Py_None; + + self = (PyDateTime_Time *) (type->tp_alloc(type, aware)); + if (self != NULL) { + self->hastzinfo = aware; + self->hashcode = -1; + TIME_SET_HOUR(self, hour); + TIME_SET_MINUTE(self, minute); + TIME_SET_SECOND(self, second); + TIME_SET_MICROSECOND(self, usecond); + if (aware) { + Py_INCREF(tzinfo); + self->tzinfo = tzinfo; + } + } + return (PyObject *)self; +} + +#define new_time(hh, mm, ss, us, tzinfo) \ + new_time_ex(hh, mm, ss, us, tzinfo, &PyDateTime_TimeType) + +/* Create a timedelta instance. Normalize the members iff normalize is + * true. Passing false is a speed optimization, if you know for sure + * that seconds and microseconds are already in their proper ranges. In any + * case, raises OverflowError and returns NULL if the normalized days is out + * of range). + */ +static PyObject * +new_delta_ex(int days, int seconds, int microseconds, int normalize, + PyTypeObject *type) +{ + PyDateTime_Delta *self; + + if (normalize) + normalize_d_s_us(&days, &seconds, µseconds); + assert(0 <= seconds && seconds < 24*3600); + assert(0 <= microseconds && microseconds < 1000000); + + if (check_delta_day_range(days) < 0) + return NULL; + + self = (PyDateTime_Delta *) (type->tp_alloc(type, 0)); + if (self != NULL) { + self->hashcode = -1; + SET_TD_DAYS(self, days); + SET_TD_SECONDS(self, seconds); + SET_TD_MICROSECONDS(self, microseconds); + } + return (PyObject *) self; +} + +#define new_delta(d, s, us, normalize) \ + new_delta_ex(d, s, us, normalize, &PyDateTime_DeltaType) + +/* --------------------------------------------------------------------------- * tzinfo helpers. */ @@ -695,8 +857,6 @@ call_utcoffset(PyObject *tzinfo, PyObject *tzinfoarg, int *none) return call_utc_tzinfo_method(tzinfo, "utcoffset", tzinfoarg, none); } -static PyObject *new_delta(int d, int sec, int usec, int normalize); - /* Call tzinfo.name(tzinfoarg), and return the offset as a timedelta or None. */ static PyObject * @@ -1235,165 +1395,6 @@ cmperror(PyObject *a, PyObject *b) } /* --------------------------------------------------------------------------- - * Basic object allocation: tp_alloc implementatiosn. These allocate - * Python objects of the right size and type, and do the Python object- - * initialization bit. If there's not enough memory, they return NULL after - * setting MemoryError. All data members remain uninitialized trash. - * - * We abuse the tp_alloc "nitems" argument to communicate whether a tzinfo - * member is needed. This is ugly. - */ - -static PyObject * -time_alloc(PyTypeObject *type, int aware) -{ - PyObject *self; - - self = (PyObject *) - PyObject_MALLOC(aware ? - sizeof(PyDateTime_Time) : - sizeof(_PyDateTime_BaseTime)); - if (self == NULL) - return (PyObject *)PyErr_NoMemory(); - PyObject_INIT(self, type); - return self; -} - -static PyObject * -datetime_alloc(PyTypeObject *type, int aware) -{ - PyObject *self; - - self = (PyObject *) - PyObject_MALLOC(aware ? - sizeof(PyDateTime_DateTime) : - sizeof(_PyDateTime_BaseDateTime)); - if (self == NULL) - return (PyObject *)PyErr_NoMemory(); - PyObject_INIT(self, type); - return self; -} - -/* --------------------------------------------------------------------------- - * Helpers for setting object fields. These work on pointers to the - * appropriate base class. - */ - -/* For date and datetime. */ -static void -set_date_fields(PyDateTime_Date *self, int y, int m, int d) -{ - self->hashcode = -1; - SET_YEAR(self, y); - SET_MONTH(self, m); - SET_DAY(self, d); -} - -/* --------------------------------------------------------------------------- - * Create various objects, mostly without range checking. - */ - -/* Create a date instance with no range checking. */ -static PyObject * -new_date_ex(int year, int month, int day, PyTypeObject *type) -{ - PyDateTime_Date *self; - - self = (PyDateTime_Date *) (type->tp_alloc(type, 0)); - if (self != NULL) - set_date_fields(self, year, month, day); - return (PyObject *) self; -} - -#define new_date(year, month, day) \ - new_date_ex(year, month, day, &PyDateTime_DateType) - -/* Create a datetime instance with no range checking. */ -static PyObject * -new_datetime_ex(int year, int month, int day, int hour, int minute, - int second, int usecond, PyObject *tzinfo, PyTypeObject *type) -{ - PyDateTime_DateTime *self; - char aware = tzinfo != Py_None; - - self = (PyDateTime_DateTime *) (type->tp_alloc(type, aware)); - if (self != NULL) { - self->hastzinfo = aware; - set_date_fields((PyDateTime_Date *)self, year, month, day); - DATE_SET_HOUR(self, hour); - DATE_SET_MINUTE(self, minute); - DATE_SET_SECOND(self, second); - DATE_SET_MICROSECOND(self, usecond); - if (aware) { - Py_INCREF(tzinfo); - self->tzinfo = tzinfo; - } - } - return (PyObject *)self; -} - -#define new_datetime(y, m, d, hh, mm, ss, us, tzinfo) \ - new_datetime_ex(y, m, d, hh, mm, ss, us, tzinfo, \ - &PyDateTime_DateTimeType) - -/* Create a time instance with no range checking. */ -static PyObject * -new_time_ex(int hour, int minute, int second, int usecond, - PyObject *tzinfo, PyTypeObject *type) -{ - PyDateTime_Time *self; - char aware = tzinfo != Py_None; - - self = (PyDateTime_Time *) (type->tp_alloc(type, aware)); - if (self != NULL) { - self->hastzinfo = aware; - self->hashcode = -1; - TIME_SET_HOUR(self, hour); - TIME_SET_MINUTE(self, minute); - TIME_SET_SECOND(self, second); - TIME_SET_MICROSECOND(self, usecond); - if (aware) { - Py_INCREF(tzinfo); - self->tzinfo = tzinfo; - } - } - return (PyObject *)self; -} - -#define new_time(hh, mm, ss, us, tzinfo) \ - new_time_ex(hh, mm, ss, us, tzinfo, &PyDateTime_TimeType) - -/* Create a timedelta instance. Normalize the members iff normalize is - * true. Passing false is a speed optimization, if you know for sure - * that seconds and microseconds are already in their proper ranges. In any - * case, raises OverflowError and returns NULL if the normalized days is out - * of range). - */ -static PyObject * -new_delta(int days, int seconds, int microseconds, int normalize) -{ - PyDateTime_Delta *self; - - if (normalize) - normalize_d_s_us(&days, &seconds, µseconds); - assert(0 <= seconds && seconds < 24*3600); - assert(0 <= microseconds && microseconds < 1000000); - - if (check_delta_day_range(days) < 0) - return NULL; - - self = PyObject_New(PyDateTime_Delta, &PyDateTime_DeltaType); - if (self != NULL) { - self->hashcode = -1; - SET_TD_DAYS(self, days); - SET_TD_SECONDS(self, seconds); - SET_TD_MICROSECONDS(self, microseconds); - } - return (PyObject *) self; -} - - -/* --------------------------------------------------------------------------- * Cached Python objects; these are set by the module init function. */ @@ -1472,7 +1473,7 @@ Done: /* Convert a number of us (as a Python int or long) to a timedelta. */ static PyObject * -microseconds_to_delta(PyObject *pyus) +microseconds_to_delta_ex(PyObject *pyus, PyTypeObject *type) { int us; int s; @@ -1542,7 +1543,7 @@ microseconds_to_delta(PyObject *pyus) "large to fit in a C int"); goto Done; } - result = new_delta(d, s, us, 0); + result = new_delta_ex(d, s, us, 0, type); Done: Py_XDECREF(tuple); @@ -1550,6 +1551,9 @@ Done: return result; } +#define microseconds_to_delta(pymicros) \ + microseconds_to_delta_ex(pymicros, &PyDateTime_DeltaType) + static PyObject * multiply_int_timedelta(PyObject *intobj, PyDateTime_Delta *delta) { @@ -1924,7 +1928,7 @@ delta_new(PyTypeObject *type, PyObject *args, PyObject *kw) CLEANUP; } - self = microseconds_to_delta(x); + self = microseconds_to_delta_ex(x, type); Py_DECREF(x); Done: return self; @@ -2110,7 +2114,8 @@ static PyTypeObject PyDateTime_DeltaType = { PyObject_GenericGetAttr, /* tp_getattro */ 0, /* tp_setattro */ 0, /* tp_as_buffer */ - Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES, /* tp_flags */ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES | + Py_TPFLAGS_BASETYPE, /* tp_flags */ delta_doc, /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ |