mirror of
https://github.com/python/cpython.git
synced 2024-11-22 13:28:21 +01:00
146483964e
type.__module__ behavior. This adds the module name and a dot in front of the type name in every type object initializer, except for built-in types (and those that already had this). Note that it touches lots of Mac modules -- I have no way to test these but the changes look right. Apologies if they're not. This also touches the weakref docs, which contains a sample type object initializer. It also touches the mmap test output, because the mmap type's repr is included in that output. It touches object.h to put the correct description in a comment.
896 lines
22 KiB
C
896 lines
22 KiB
C
|
|
/* Time module */
|
|
|
|
#include "Python.h"
|
|
#include "structseq.h"
|
|
|
|
#include <ctype.h>
|
|
|
|
#ifdef macintosh
|
|
#include <time.h>
|
|
#include <OSUtils.h>
|
|
#ifdef USE_GUSI211
|
|
/* GUSI, the I/O library which has the time() function and such uses the
|
|
** Mac epoch of 1904. MSL, the C library which has localtime() and so uses
|
|
** the ANSI epoch of 1900.
|
|
*/
|
|
#define GUSI_TO_MSL_EPOCH (4*365*24*60*60)
|
|
#endif /* USE_GUSI2 */
|
|
#else
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
#ifdef QUICKWIN
|
|
#include <io.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_FTIME
|
|
#include <sys/timeb.h>
|
|
#if !defined(MS_WINDOWS) && !defined(PYOS_OS2)
|
|
extern int ftime(struct timeb *);
|
|
#endif /* MS_WINDOWS */
|
|
#endif /* HAVE_FTIME */
|
|
|
|
#if defined(__WATCOMC__) && !defined(__QNX__)
|
|
#include <i86.h>
|
|
#else
|
|
#ifdef MS_WINDOWS
|
|
#include <windows.h>
|
|
#if defined(MS_WIN16) || defined(__BORLANDC__)
|
|
/* These overrides not needed for Win32 */
|
|
#define timezone _timezone
|
|
#define tzname _tzname
|
|
#define daylight _daylight
|
|
#endif /* MS_WIN16 || __BORLANDC__ */
|
|
#ifdef MS_WIN16
|
|
#define altzone _altzone
|
|
#endif /* MS_WIN16 */
|
|
#endif /* MS_WINDOWS */
|
|
#endif /* !__WATCOMC__ || __QNX__ */
|
|
|
|
#if defined(MS_WIN32) && !defined(MS_WIN64) && !defined(__BORLANDC__)
|
|
/* Win32 has better clock replacement
|
|
XXX Win64 does not yet, but might when the platform matures. */
|
|
#include <largeint.h>
|
|
#undef HAVE_CLOCK /* We have our own version down below */
|
|
#endif /* MS_WIN32 && !MS_WIN64 */
|
|
|
|
#if defined(PYCC_VACPP)
|
|
#include <sys/time.h>
|
|
#endif
|
|
|
|
#ifdef __BEOS__
|
|
#include <time.h>
|
|
/* For bigtime_t, snooze(). - [cjh] */
|
|
#include <support/SupportDefs.h>
|
|
#include <kernel/OS.h>
|
|
#endif
|
|
|
|
/* Forward declarations */
|
|
static int floatsleep(double);
|
|
static double floattime(void);
|
|
|
|
/* For Y2K check */
|
|
static PyObject *moddict;
|
|
|
|
#ifdef macintosh
|
|
/* Our own timezone. We have enough information to deduce whether
|
|
** DST is on currently, but unfortunately we cannot put it to good
|
|
** use because we don't know the rules (and that is needed to have
|
|
** localtime() return correct tm_isdst values for times other than
|
|
** the current time. So, we cop out and only tell the user the current
|
|
** timezone.
|
|
*/
|
|
static long timezone;
|
|
|
|
static void
|
|
initmactimezone(void)
|
|
{
|
|
MachineLocation loc;
|
|
long delta;
|
|
|
|
ReadLocation(&loc);
|
|
|
|
if (loc.latitude == 0 && loc.longitude == 0 && loc.u.gmtDelta == 0)
|
|
return;
|
|
|
|
delta = loc.u.gmtDelta & 0x00FFFFFF;
|
|
|
|
if (delta & 0x00800000)
|
|
delta |= 0xFF000000;
|
|
|
|
timezone = -delta;
|
|
}
|
|
#endif /* macintosh */
|
|
|
|
|
|
static PyObject *
|
|
time_time(PyObject *self, PyObject *args)
|
|
{
|
|
double secs;
|
|
if (!PyArg_ParseTuple(args, ":time"))
|
|
return NULL;
|
|
secs = floattime();
|
|
if (secs == 0.0) {
|
|
PyErr_SetFromErrno(PyExc_IOError);
|
|
return NULL;
|
|
}
|
|
return PyFloat_FromDouble(secs);
|
|
}
|
|
|
|
static char time_doc[] =
|
|
"time() -> floating point number\n\
|
|
\n\
|
|
Return the current time in seconds since the Epoch.\n\
|
|
Fractions of a second may be present if the system clock provides them.";
|
|
|
|
#ifdef HAVE_CLOCK
|
|
|
|
#ifndef CLOCKS_PER_SEC
|
|
#ifdef CLK_TCK
|
|
#define CLOCKS_PER_SEC CLK_TCK
|
|
#else
|
|
#define CLOCKS_PER_SEC 1000000
|
|
#endif
|
|
#endif
|
|
|
|
static PyObject *
|
|
time_clock(PyObject *self, PyObject *args)
|
|
{
|
|
if (!PyArg_ParseTuple(args, ":clock"))
|
|
return NULL;
|
|
return PyFloat_FromDouble(((double)clock()) / CLOCKS_PER_SEC);
|
|
}
|
|
#endif /* HAVE_CLOCK */
|
|
|
|
#if defined(MS_WIN32) && !defined(MS_WIN64) && !defined(__BORLANDC__)
|
|
/* Due to Mark Hammond */
|
|
static PyObject *
|
|
time_clock(PyObject *self, PyObject *args)
|
|
{
|
|
static LARGE_INTEGER ctrStart;
|
|
static LARGE_INTEGER divisor = {0,0};
|
|
LARGE_INTEGER now, diff, rem;
|
|
|
|
if (!PyArg_ParseTuple(args, ":clock"))
|
|
return NULL;
|
|
|
|
if (LargeIntegerEqualToZero(divisor)) {
|
|
QueryPerformanceCounter(&ctrStart);
|
|
if (!QueryPerformanceFrequency(&divisor) ||
|
|
LargeIntegerEqualToZero(divisor)) {
|
|
/* Unlikely to happen -
|
|
this works on all intel machines at least!
|
|
Revert to clock() */
|
|
return PyFloat_FromDouble(clock());
|
|
}
|
|
}
|
|
QueryPerformanceCounter(&now);
|
|
diff = LargeIntegerSubtract(now, ctrStart);
|
|
diff = LargeIntegerDivide(diff, divisor, &rem);
|
|
/* XXX - we assume both divide results fit in 32 bits. This is
|
|
true on Intels. First person who can afford a machine that
|
|
doesnt deserves to fix it :-)
|
|
*/
|
|
return PyFloat_FromDouble((double)diff.LowPart +
|
|
((double)rem.LowPart / (double)divisor.LowPart));
|
|
}
|
|
|
|
#define HAVE_CLOCK /* So it gets included in the methods */
|
|
#endif /* MS_WIN32 && !MS_WIN64 */
|
|
|
|
#ifdef HAVE_CLOCK
|
|
static char clock_doc[] =
|
|
"clock() -> floating point number\n\
|
|
\n\
|
|
Return the CPU time or real time since the start of the process or since\n\
|
|
the first call to clock(). This has as much precision as the system records.";
|
|
#endif
|
|
|
|
static PyObject *
|
|
time_sleep(PyObject *self, PyObject *args)
|
|
{
|
|
double secs;
|
|
if (!PyArg_ParseTuple(args, "d:sleep", &secs))
|
|
return NULL;
|
|
if (floatsleep(secs) != 0)
|
|
return NULL;
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
static char sleep_doc[] =
|
|
"sleep(seconds)\n\
|
|
\n\
|
|
Delay execution for a given number of seconds. The argument may be\n\
|
|
a floating point number for subsecond precision.";
|
|
|
|
static PyStructSequence_Field struct_time_type_fields[] = {
|
|
{"tm_year", NULL},
|
|
{"tm_mon", NULL},
|
|
{"tm_mday", NULL},
|
|
{"tm_hour", NULL},
|
|
{"tm_min", NULL},
|
|
{"tm_sec", NULL},
|
|
{"tm_wday", NULL},
|
|
{"tm_yday", NULL},
|
|
{"tm_isdst", NULL},
|
|
{0}
|
|
};
|
|
|
|
static PyStructSequence_Desc struct_time_type_desc = {
|
|
"time.struct_time",
|
|
NULL,
|
|
struct_time_type_fields,
|
|
9,
|
|
};
|
|
|
|
static PyTypeObject StructTimeType;
|
|
|
|
static PyObject *
|
|
tmtotuple(struct tm *p)
|
|
{
|
|
PyObject *v = PyStructSequence_New(&StructTimeType);
|
|
if (v == NULL)
|
|
return NULL;
|
|
|
|
#define SET(i,val) PyStructSequence_SET_ITEM(v, i, PyInt_FromLong((long) val))
|
|
|
|
SET(0, p->tm_year + 1900);
|
|
SET(1, p->tm_mon + 1); /* Want January == 1 */
|
|
SET(2, p->tm_mday);
|
|
SET(3, p->tm_hour);
|
|
SET(4, p->tm_min);
|
|
SET(5, p->tm_sec);
|
|
SET(6, (p->tm_wday + 6) % 7); /* Want Monday == 0 */
|
|
SET(7, p->tm_yday + 1); /* Want January, 1 == 1 */
|
|
SET(8, p->tm_isdst);
|
|
#undef SET
|
|
if (PyErr_Occurred()) {
|
|
Py_XDECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
time_convert(time_t when, struct tm * (*function)(const time_t *))
|
|
{
|
|
struct tm *p;
|
|
errno = 0;
|
|
#if defined(macintosh) && defined(USE_GUSI204)
|
|
when = when + GUSI_TO_MSL_EPOCH;
|
|
#endif
|
|
p = function(&when);
|
|
if (p == NULL) {
|
|
#ifdef EINVAL
|
|
if (errno == 0)
|
|
errno = EINVAL;
|
|
#endif
|
|
return PyErr_SetFromErrno(PyExc_IOError);
|
|
}
|
|
return tmtotuple(p);
|
|
}
|
|
|
|
static PyObject *
|
|
time_gmtime(PyObject *self, PyObject *args)
|
|
{
|
|
double when;
|
|
if (PyTuple_Size(args) == 0)
|
|
when = floattime();
|
|
if (!PyArg_ParseTuple(args, "|d:gmtime", &when))
|
|
return NULL;
|
|
return time_convert((time_t)when, gmtime);
|
|
}
|
|
|
|
static char gmtime_doc[] =
|
|
"gmtime([seconds]) -> (year,month,day,hour,minute,second,weekday,dayofyear,dst)\n\
|
|
\n\
|
|
Convert seconds since the Epoch to a time tuple expressing UTC (a.k.a.\n\
|
|
GMT). When 'seconds' is not passed in, convert the current time instead.";
|
|
|
|
static PyObject *
|
|
time_localtime(PyObject *self, PyObject *args)
|
|
{
|
|
double when;
|
|
if (PyTuple_Size(args) == 0)
|
|
when = floattime();
|
|
if (!PyArg_ParseTuple(args, "|d:localtime", &when))
|
|
return NULL;
|
|
return time_convert((time_t)when, localtime);
|
|
}
|
|
|
|
static char localtime_doc[] =
|
|
"localtime([seconds]) -> (year,month,day,hour,minute,second,weekday,dayofyear,dst)\n\
|
|
\n\
|
|
Convert seconds since the Epoch to a time tuple expressing local time.\n\
|
|
When 'seconds' is not passed in, convert the current time instead.";
|
|
|
|
static int
|
|
gettmarg(PyObject *args, struct tm *p)
|
|
{
|
|
int y;
|
|
memset((void *) p, '\0', sizeof(struct tm));
|
|
|
|
if (!PyArg_Parse(args, "(iiiiiiiii)",
|
|
&y,
|
|
&p->tm_mon,
|
|
&p->tm_mday,
|
|
&p->tm_hour,
|
|
&p->tm_min,
|
|
&p->tm_sec,
|
|
&p->tm_wday,
|
|
&p->tm_yday,
|
|
&p->tm_isdst))
|
|
return 0;
|
|
if (y < 1900) {
|
|
PyObject *accept = PyDict_GetItemString(moddict,
|
|
"accept2dyear");
|
|
if (accept == NULL || !PyInt_Check(accept) ||
|
|
PyInt_AsLong(accept) == 0) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"year >= 1900 required");
|
|
return 0;
|
|
}
|
|
if (69 <= y && y <= 99)
|
|
y += 1900;
|
|
else if (0 <= y && y <= 68)
|
|
y += 2000;
|
|
else {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"year out of range");
|
|
return 0;
|
|
}
|
|
}
|
|
p->tm_year = y - 1900;
|
|
p->tm_mon--;
|
|
p->tm_wday = (p->tm_wday + 1) % 7;
|
|
p->tm_yday--;
|
|
return 1;
|
|
}
|
|
|
|
#ifdef HAVE_STRFTIME
|
|
static PyObject *
|
|
time_strftime(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *tup = NULL;
|
|
struct tm buf;
|
|
const char *fmt;
|
|
size_t fmtlen, buflen;
|
|
char *outbuf = 0;
|
|
size_t i;
|
|
|
|
memset((void *) &buf, '\0', sizeof(buf));
|
|
|
|
if (!PyArg_ParseTuple(args, "s|O:strftime", &fmt, &tup))
|
|
return NULL;
|
|
|
|
if (tup == NULL) {
|
|
time_t tt = time(NULL);
|
|
buf = *localtime(&tt);
|
|
} else if (!gettmarg(tup, &buf))
|
|
return NULL;
|
|
|
|
fmtlen = strlen(fmt);
|
|
|
|
/* I hate these functions that presume you know how big the output
|
|
* will be ahead of time...
|
|
*/
|
|
for (i = 1024; ; i += i) {
|
|
outbuf = malloc(i);
|
|
if (outbuf == NULL) {
|
|
return PyErr_NoMemory();
|
|
}
|
|
buflen = strftime(outbuf, i, fmt, &buf);
|
|
if (buflen > 0 || i >= 256 * fmtlen) {
|
|
/* If the buffer is 256 times as long as the format,
|
|
it's probably not failing for lack of room!
|
|
More likely, the format yields an empty result,
|
|
e.g. an empty format, or %Z when the timezone
|
|
is unknown. */
|
|
PyObject *ret;
|
|
ret = PyString_FromStringAndSize(outbuf, buflen);
|
|
free(outbuf);
|
|
return ret;
|
|
}
|
|
free(outbuf);
|
|
}
|
|
}
|
|
|
|
static char strftime_doc[] =
|
|
"strftime(format[, tuple]) -> string\n\
|
|
\n\
|
|
Convert a time tuple to a string according to a format specification.\n\
|
|
See the library reference manual for formatting codes. When the time tuple\n\
|
|
is not present, current time as returned by localtime() is used.";
|
|
#endif /* HAVE_STRFTIME */
|
|
|
|
#ifdef HAVE_STRPTIME
|
|
|
|
#if 0
|
|
/* Enable this if it's not declared in <time.h> */
|
|
extern char *strptime(const char *, const char *, struct tm *);
|
|
#endif
|
|
|
|
static PyObject *
|
|
time_strptime(PyObject *self, PyObject *args)
|
|
{
|
|
struct tm tm;
|
|
char *fmt = "%a %b %d %H:%M:%S %Y";
|
|
char *buf;
|
|
char *s;
|
|
|
|
if (!PyArg_ParseTuple(args, "s|s:strptime", &buf, &fmt))
|
|
return NULL;
|
|
memset((void *) &tm, '\0', sizeof(tm));
|
|
s = strptime(buf, fmt, &tm);
|
|
if (s == NULL) {
|
|
PyErr_SetString(PyExc_ValueError, "format mismatch");
|
|
return NULL;
|
|
}
|
|
while (*s && isspace(Py_CHARMASK(*s)))
|
|
s++;
|
|
if (*s) {
|
|
PyErr_Format(PyExc_ValueError,
|
|
"unconverted data remains: '%.400s'", s);
|
|
return NULL;
|
|
}
|
|
return tmtotuple(&tm);
|
|
}
|
|
|
|
static char strptime_doc[] =
|
|
"strptime(string, format) -> tuple\n\
|
|
\n\
|
|
Parse a string to a time tuple according to a format specification.\n\
|
|
See the library reference manual for formatting codes (same as strftime()).";
|
|
#endif /* HAVE_STRPTIME */
|
|
|
|
static PyObject *
|
|
time_asctime(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *tup = NULL;
|
|
struct tm buf;
|
|
char *p;
|
|
if (!PyArg_ParseTuple(args, "|O:asctime", &tup))
|
|
return NULL;
|
|
if (tup == NULL) {
|
|
time_t tt = time(NULL);
|
|
buf = *localtime(&tt);
|
|
} else if (!gettmarg(tup, &buf))
|
|
return NULL;
|
|
p = asctime(&buf);
|
|
if (p[24] == '\n')
|
|
p[24] = '\0';
|
|
return PyString_FromString(p);
|
|
}
|
|
|
|
static char asctime_doc[] =
|
|
"asctime([tuple]) -> string\n\
|
|
\n\
|
|
Convert a time tuple to a string, e.g. 'Sat Jun 06 16:26:11 1998'.\n\
|
|
When the time tuple is not present, current time as returned by localtime()\n\
|
|
is used.";
|
|
|
|
static PyObject *
|
|
time_ctime(PyObject *self, PyObject *args)
|
|
{
|
|
double dt;
|
|
time_t tt;
|
|
char *p;
|
|
|
|
if (PyTuple_Size(args) == 0)
|
|
tt = time(NULL);
|
|
else {
|
|
if (!PyArg_ParseTuple(args, "|d:ctime", &dt))
|
|
return NULL;
|
|
tt = (time_t)dt;
|
|
}
|
|
#if defined(macintosh) && defined(USE_GUSI204)
|
|
tt = tt + GUSI_TO_MSL_EPOCH;
|
|
#endif
|
|
p = ctime(&tt);
|
|
if (p == NULL) {
|
|
PyErr_SetString(PyExc_ValueError, "unconvertible time");
|
|
return NULL;
|
|
}
|
|
if (p[24] == '\n')
|
|
p[24] = '\0';
|
|
return PyString_FromString(p);
|
|
}
|
|
|
|
static char ctime_doc[] =
|
|
"ctime(seconds) -> string\n\
|
|
\n\
|
|
Convert a time in seconds since the Epoch to a string in local time.\n\
|
|
This is equivalent to asctime(localtime(seconds)). When the time tuple is\n\
|
|
not present, current time as returned by localtime() is used.";
|
|
|
|
#ifdef HAVE_MKTIME
|
|
static PyObject *
|
|
time_mktime(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *tup;
|
|
struct tm buf;
|
|
time_t tt;
|
|
if (!PyArg_ParseTuple(args, "O:mktime", &tup))
|
|
return NULL;
|
|
tt = time(&tt);
|
|
buf = *localtime(&tt);
|
|
if (!gettmarg(tup, &buf))
|
|
return NULL;
|
|
tt = mktime(&buf);
|
|
if (tt == (time_t)(-1)) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"mktime argument out of range");
|
|
return NULL;
|
|
}
|
|
#if defined(macintosh) && defined(USE_GUSI211)
|
|
tt = tt - GUSI_TO_MSL_EPOCH;
|
|
#endif
|
|
return PyFloat_FromDouble((double)tt);
|
|
}
|
|
|
|
static char mktime_doc[] =
|
|
"mktime(tuple) -> floating point number\n\
|
|
\n\
|
|
Convert a time tuple in local time to seconds since the Epoch.";
|
|
#endif /* HAVE_MKTIME */
|
|
|
|
static PyMethodDef time_methods[] = {
|
|
{"time", time_time, METH_VARARGS, time_doc},
|
|
#ifdef HAVE_CLOCK
|
|
{"clock", time_clock, METH_VARARGS, clock_doc},
|
|
#endif
|
|
{"sleep", time_sleep, METH_VARARGS, sleep_doc},
|
|
{"gmtime", time_gmtime, METH_VARARGS, gmtime_doc},
|
|
{"localtime", time_localtime, METH_VARARGS, localtime_doc},
|
|
{"asctime", time_asctime, METH_VARARGS, asctime_doc},
|
|
{"ctime", time_ctime, METH_VARARGS, ctime_doc},
|
|
#ifdef HAVE_MKTIME
|
|
{"mktime", time_mktime, METH_VARARGS, mktime_doc},
|
|
#endif
|
|
#ifdef HAVE_STRFTIME
|
|
{"strftime", time_strftime, METH_VARARGS, strftime_doc},
|
|
#endif
|
|
#ifdef HAVE_STRPTIME
|
|
{"strptime", time_strptime, METH_VARARGS, strptime_doc},
|
|
#endif
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
static void
|
|
ins(PyObject *d, char *name, PyObject *v)
|
|
{
|
|
/* Don't worry too much about errors, they'll be caught by the
|
|
* caller of inittime().
|
|
*/
|
|
if (v)
|
|
PyDict_SetItemString(d, name, v);
|
|
Py_XDECREF(v);
|
|
}
|
|
|
|
|
|
static char module_doc[] =
|
|
"This module provides various functions to manipulate time values.\n\
|
|
\n\
|
|
There are two standard representations of time. One is the number\n\
|
|
of seconds since the Epoch, in UTC (a.k.a. GMT). It may be an integer\n\
|
|
or a floating point number (to represent fractions of seconds).\n\
|
|
The Epoch is system-defined; on Unix, it is generally January 1st, 1970.\n\
|
|
The actual value can be retrieved by calling gmtime(0).\n\
|
|
\n\
|
|
The other representation is a tuple of 9 integers giving local time.\n\
|
|
The tuple items are:\n\
|
|
year (four digits, e.g. 1998)\n\
|
|
month (1-12)\n\
|
|
day (1-31)\n\
|
|
hours (0-23)\n\
|
|
minutes (0-59)\n\
|
|
seconds (0-59)\n\
|
|
weekday (0-6, Monday is 0)\n\
|
|
Julian day (day in the year, 1-366)\n\
|
|
DST (Daylight Savings Time) flag (-1, 0 or 1)\n\
|
|
If the DST flag is 0, the time is given in the regular time zone;\n\
|
|
if it is 1, the time is given in the DST time zone;\n\
|
|
if it is -1, mktime() should guess based on the date and time.\n\
|
|
\n\
|
|
Variables:\n\
|
|
\n\
|
|
timezone -- difference in seconds between UTC and local standard time\n\
|
|
altzone -- difference in seconds between UTC and local DST time\n\
|
|
daylight -- whether local time should reflect DST\n\
|
|
tzname -- tuple of (standard time zone name, DST time zone name)\n\
|
|
\n\
|
|
Functions:\n\
|
|
\n\
|
|
time() -- return current time in seconds since the Epoch as a float\n\
|
|
clock() -- return CPU time since process start as a float\n\
|
|
sleep() -- delay for a number of seconds given as a float\n\
|
|
gmtime() -- convert seconds since Epoch to UTC tuple\n\
|
|
localtime() -- convert seconds since Epoch to local time tuple\n\
|
|
asctime() -- convert time tuple to string\n\
|
|
ctime() -- convert time in seconds to string\n\
|
|
mktime() -- convert local time tuple to seconds since Epoch\n\
|
|
strftime() -- convert time tuple to string according to format specification\n\
|
|
strptime() -- parse string to time tuple according to format specification\n\
|
|
";
|
|
|
|
|
|
DL_EXPORT(void)
|
|
inittime(void)
|
|
{
|
|
PyObject *m, *d;
|
|
char *p;
|
|
m = Py_InitModule3("time", time_methods, module_doc);
|
|
d = PyModule_GetDict(m);
|
|
/* Accept 2-digit dates unless PYTHONY2K is set and non-empty */
|
|
p = Py_GETENV("PYTHONY2K");
|
|
ins(d, "accept2dyear", PyInt_FromLong((long) (!p || !*p)));
|
|
/* Squirrel away the module's dictionary for the y2k check */
|
|
Py_INCREF(d);
|
|
moddict = d;
|
|
#if defined(HAVE_TZNAME) && !defined(__GLIBC__) && !defined(__CYGWIN__)
|
|
tzset();
|
|
#ifdef PYOS_OS2
|
|
ins(d, "timezone", PyInt_FromLong((long)_timezone));
|
|
#else /* !PYOS_OS2 */
|
|
ins(d, "timezone", PyInt_FromLong((long)timezone));
|
|
#endif /* PYOS_OS2 */
|
|
#ifdef HAVE_ALTZONE
|
|
ins(d, "altzone", PyInt_FromLong((long)altzone));
|
|
#else
|
|
#ifdef PYOS_OS2
|
|
ins(d, "altzone", PyInt_FromLong((long)_timezone-3600));
|
|
#else /* !PYOS_OS2 */
|
|
ins(d, "altzone", PyInt_FromLong((long)timezone-3600));
|
|
#endif /* PYOS_OS2 */
|
|
#endif
|
|
ins(d, "daylight", PyInt_FromLong((long)daylight));
|
|
ins(d, "tzname", Py_BuildValue("(zz)", tzname[0], tzname[1]));
|
|
#else /* !HAVE_TZNAME || __GLIBC__ || __CYGWIN__*/
|
|
#ifdef HAVE_TM_ZONE
|
|
{
|
|
#define YEAR ((time_t)((365 * 24 + 6) * 3600))
|
|
time_t t;
|
|
struct tm *p;
|
|
long janzone, julyzone;
|
|
char janname[10], julyname[10];
|
|
t = (time((time_t *)0) / YEAR) * YEAR;
|
|
p = localtime(&t);
|
|
janzone = -p->tm_gmtoff;
|
|
strncpy(janname, p->tm_zone ? p->tm_zone : " ", 9);
|
|
janname[9] = '\0';
|
|
t += YEAR/2;
|
|
p = localtime(&t);
|
|
julyzone = -p->tm_gmtoff;
|
|
strncpy(julyname, p->tm_zone ? p->tm_zone : " ", 9);
|
|
julyname[9] = '\0';
|
|
|
|
if( janzone < julyzone ) {
|
|
/* DST is reversed in the southern hemisphere */
|
|
ins(d, "timezone", PyInt_FromLong(julyzone));
|
|
ins(d, "altzone", PyInt_FromLong(janzone));
|
|
ins(d, "daylight",
|
|
PyInt_FromLong((long)(janzone != julyzone)));
|
|
ins(d, "tzname",
|
|
Py_BuildValue("(zz)", julyname, janname));
|
|
} else {
|
|
ins(d, "timezone", PyInt_FromLong(janzone));
|
|
ins(d, "altzone", PyInt_FromLong(julyzone));
|
|
ins(d, "daylight",
|
|
PyInt_FromLong((long)(janzone != julyzone)));
|
|
ins(d, "tzname",
|
|
Py_BuildValue("(zz)", janname, julyname));
|
|
}
|
|
}
|
|
#else
|
|
#ifdef macintosh
|
|
/* The only thing we can obtain is the current timezone
|
|
** (and whether dst is currently _active_, but that is not what
|
|
** we're looking for:-( )
|
|
*/
|
|
initmactimezone();
|
|
ins(d, "timezone", PyInt_FromLong(timezone));
|
|
ins(d, "altzone", PyInt_FromLong(timezone));
|
|
ins(d, "daylight", PyInt_FromLong((long)0));
|
|
ins(d, "tzname", Py_BuildValue("(zz)", "", ""));
|
|
#endif /* macintosh */
|
|
#endif /* HAVE_TM_ZONE */
|
|
#ifdef __CYGWIN__
|
|
tzset();
|
|
ins(d, "timezone", PyInt_FromLong(_timezone));
|
|
ins(d, "altzone", PyInt_FromLong(_timezone));
|
|
ins(d, "daylight", PyInt_FromLong(_daylight));
|
|
ins(d, "tzname", Py_BuildValue("(zz)", _tzname[0], _tzname[1]));
|
|
#endif /* __CYGWIN__ */
|
|
#endif /* !HAVE_TZNAME || __GLIBC__ || __CYGWIN__*/
|
|
|
|
PyStructSequence_InitType(&StructTimeType, &struct_time_type_desc);
|
|
PyDict_SetItemString(d, "struct_time", (PyObject*) &StructTimeType);
|
|
}
|
|
|
|
|
|
/* Implement floattime() for various platforms */
|
|
|
|
static double
|
|
floattime(void)
|
|
{
|
|
/* There are three ways to get the time:
|
|
(1) gettimeofday() -- resolution in microseconds
|
|
(2) ftime() -- resolution in milliseconds
|
|
(3) time() -- resolution in seconds
|
|
In all cases the return value is a float in seconds.
|
|
Since on some systems (e.g. SCO ODT 3.0) gettimeofday() may
|
|
fail, so we fall back on ftime() or time().
|
|
Note: clock resolution does not imply clock accuracy! */
|
|
#ifdef HAVE_GETTIMEOFDAY
|
|
{
|
|
struct timeval t;
|
|
#ifdef GETTIMEOFDAY_NO_TZ
|
|
if (gettimeofday(&t) == 0)
|
|
return (double)t.tv_sec + t.tv_usec*0.000001;
|
|
#else /* !GETTIMEOFDAY_NO_TZ */
|
|
if (gettimeofday(&t, (struct timezone *)NULL) == 0)
|
|
return (double)t.tv_sec + t.tv_usec*0.000001;
|
|
#endif /* !GETTIMEOFDAY_NO_TZ */
|
|
}
|
|
#endif /* !HAVE_GETTIMEOFDAY */
|
|
{
|
|
#if defined(HAVE_FTIME)
|
|
struct timeb t;
|
|
ftime(&t);
|
|
return (double)t.time + (double)t.millitm * (double)0.001;
|
|
#else /* !HAVE_FTIME */
|
|
time_t secs;
|
|
time(&secs);
|
|
return (double)secs;
|
|
#endif /* !HAVE_FTIME */
|
|
}
|
|
}
|
|
|
|
|
|
/* Implement floatsleep() for various platforms.
|
|
When interrupted (or when another error occurs), return -1 and
|
|
set an exception; else return 0. */
|
|
|
|
static int
|
|
floatsleep(double secs)
|
|
{
|
|
/* XXX Should test for MS_WIN32 first! */
|
|
#if defined(HAVE_SELECT) && !defined(__BEOS__)
|
|
struct timeval t;
|
|
double frac;
|
|
frac = fmod(secs, 1.0);
|
|
secs = floor(secs);
|
|
t.tv_sec = (long)secs;
|
|
t.tv_usec = (long)(frac*1000000.0);
|
|
Py_BEGIN_ALLOW_THREADS
|
|
if (select(0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &t) != 0) {
|
|
#ifdef EINTR
|
|
if (errno != EINTR) {
|
|
#else
|
|
if (1) {
|
|
#endif
|
|
Py_BLOCK_THREADS
|
|
PyErr_SetFromErrno(PyExc_IOError);
|
|
return -1;
|
|
}
|
|
}
|
|
Py_END_ALLOW_THREADS
|
|
#else /* !HAVE_SELECT || __BEOS__ */
|
|
#ifdef macintosh
|
|
#define MacTicks (* (long *)0x16A)
|
|
long deadline;
|
|
deadline = MacTicks + (long)(secs * 60.0);
|
|
while (MacTicks < deadline) {
|
|
/* XXX Should call some yielding function here */
|
|
if (PyErr_CheckSignals())
|
|
return -1;
|
|
}
|
|
#else /* !macintosh */
|
|
#if defined(__WATCOMC__) && !defined(__QNX__)
|
|
/* XXX Can't interrupt this sleep */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
delay((int)(secs * 1000 + 0.5)); /* delay() uses milliseconds */
|
|
Py_END_ALLOW_THREADS
|
|
#else /* !__WATCOMC__ || __QNX__ */
|
|
#ifdef MSDOS
|
|
struct timeb t1, t2;
|
|
double frac;
|
|
extern double fmod(double, double);
|
|
extern double floor(double);
|
|
if (secs <= 0.0)
|
|
return;
|
|
frac = fmod(secs, 1.0);
|
|
secs = floor(secs);
|
|
ftime(&t1);
|
|
t2.time = t1.time + (int)secs;
|
|
t2.millitm = t1.millitm + (int)(frac*1000.0);
|
|
while (t2.millitm >= 1000) {
|
|
t2.time++;
|
|
t2.millitm -= 1000;
|
|
}
|
|
for (;;) {
|
|
#ifdef QUICKWIN
|
|
Py_BEGIN_ALLOW_THREADS
|
|
_wyield();
|
|
Py_END_ALLOW_THREADS
|
|
#endif
|
|
if (PyErr_CheckSignals())
|
|
return -1;
|
|
ftime(&t1);
|
|
if (t1.time > t2.time ||
|
|
t1.time == t2.time && t1.millitm >= t2.millitm)
|
|
break;
|
|
}
|
|
#else /* !MSDOS */
|
|
#ifdef MS_WIN32
|
|
{
|
|
double millisecs = secs * 1000.0;
|
|
if (millisecs > (double)ULONG_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError, "sleep length is too large");
|
|
return -1;
|
|
}
|
|
/* XXX Can't interrupt this sleep */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
Sleep((unsigned long)millisecs);
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
#else /* !MS_WIN32 */
|
|
#ifdef PYOS_OS2
|
|
/* This Sleep *IS* Interruptable by Exceptions */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
if (DosSleep(secs * 1000) != NO_ERROR) {
|
|
Py_BLOCK_THREADS
|
|
PyErr_SetFromErrno(PyExc_IOError);
|
|
return -1;
|
|
}
|
|
Py_END_ALLOW_THREADS
|
|
#else /* !PYOS_OS2 */
|
|
#ifdef __BEOS__
|
|
/* This sleep *CAN BE* interrupted. */
|
|
{
|
|
if( secs <= 0.0 ) {
|
|
return;
|
|
}
|
|
|
|
Py_BEGIN_ALLOW_THREADS
|
|
/* BeOS snooze() is in microseconds... */
|
|
if( snooze( (bigtime_t)( secs * 1000.0 * 1000.0 ) ) == B_INTERRUPTED ) {
|
|
Py_BLOCK_THREADS
|
|
PyErr_SetFromErrno( PyExc_IOError );
|
|
return -1;
|
|
}
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
#else /* !__BEOS__ */
|
|
#ifdef RISCOS
|
|
if (secs <= 0.0)
|
|
return 0;
|
|
Py_BEGIN_ALLOW_THREADS
|
|
/* This sleep *CAN BE* interrupted. */
|
|
if ( sleep(secs) )
|
|
return -1;
|
|
Py_END_ALLOW_THREADS
|
|
#else /* !RISCOS */
|
|
/* XXX Can't interrupt this sleep */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
sleep((int)secs);
|
|
Py_END_ALLOW_THREADS
|
|
#endif /* !RISCOS */
|
|
#endif /* !__BEOS__ */
|
|
#endif /* !PYOS_OS2 */
|
|
#endif /* !MS_WIN32 */
|
|
#endif /* !MSDOS */
|
|
#endif /* !__WATCOMC__ || __QNX__ */
|
|
#endif /* !macintosh */
|
|
#endif /* !HAVE_SELECT */
|
|
|
|
return 0;
|
|
}
|