mirror of
https://github.com/python/cpython.git
synced 2024-12-08 01:04:37 +08:00
822 lines
20 KiB
C
822 lines
20 KiB
C
/***********************************************************
|
|
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
|
|
The Netherlands.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the names of Stichting Mathematisch
|
|
Centrum or CWI or Corporation for National Research Initiatives or
|
|
CNRI not be used in advertising or publicity pertaining to
|
|
distribution of the software without specific, written prior
|
|
permission.
|
|
|
|
While CWI is the initial source for this software, a modified version
|
|
is made available by the Corporation for National Research Initiatives
|
|
(CNRI) at the Internet address ftp://ftp.python.org.
|
|
|
|
STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
|
|
REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
|
|
CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
|
|
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
******************************************************************/
|
|
|
|
/* Time module */
|
|
|
|
#include "Python.h"
|
|
|
|
#include <ctype.h>
|
|
|
|
#ifdef HAVE_SELECT
|
|
#include "mymath.h"
|
|
#endif
|
|
|
|
#ifdef macintosh
|
|
#include <time.h>
|
|
#else
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
#ifdef QUICKWIN
|
|
#include <io.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#if defined(HAVE_SELECT) && !defined(__BEOS__)
|
|
#include "myselect.h"
|
|
#else
|
|
#include "mytime.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_FTIME
|
|
#ifndef __BEOS__
|
|
/* We have ftime(), but not in the headers (PR2). - [cjh] */
|
|
#include <sys/timeb.h>
|
|
#endif
|
|
#if !defined(MS_WINDOWS) && !defined(PYOS_OS2)
|
|
extern int ftime();
|
|
#endif /* MS_WINDOWS */
|
|
#endif /* HAVE_FTIME */
|
|
|
|
#if defined(__WATCOMC__) && !defined(__QNX__)
|
|
#include <i86.h>
|
|
#else
|
|
#ifdef MS_WINDOWS
|
|
#include <windows.h>
|
|
#ifdef MS_WIN16
|
|
/* These overrides not needed for Win32 */
|
|
#define timezone _timezone
|
|
#define tzname _tzname
|
|
#define daylight _daylight
|
|
#define altzone _altzone
|
|
#endif /* MS_WIN16 */
|
|
#endif /* MS_WINDOWS */
|
|
#endif /* !__WATCOMC__ || __QNX__ */
|
|
|
|
#ifdef MS_WIN32
|
|
/* Win32 has better clock replacement */
|
|
#include <largeint.h>
|
|
#undef HAVE_CLOCK /* We have our own version down below */
|
|
#endif /* MS_WIN32 */
|
|
|
|
#if defined(PYOS_OS2)
|
|
#define INCL_DOS
|
|
#define INCL_DOSERRORS
|
|
#define INCL_NOPMAPI
|
|
#include <os2.h>
|
|
#endif
|
|
|
|
#if defined(PYCC_VACPP)
|
|
#include <time.h>
|
|
#define timezone _timezone
|
|
#endif
|
|
|
|
#ifdef __BEOS__
|
|
/* For bigtime_t, snooze(). - [cjh] */
|
|
#include <support/SupportDefs.h>
|
|
#include <kernel/OS.h>
|
|
#endif
|
|
|
|
/* Forward declarations */
|
|
static int floatsleep Py_PROTO((double));
|
|
static double floattime Py_PROTO(());
|
|
|
|
#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()
|
|
{
|
|
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(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
double secs;
|
|
if (!PyArg_NoArgs(args))
|
|
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(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
if (!PyArg_NoArgs(args))
|
|
return NULL;
|
|
return PyFloat_FromDouble(((double)clock()) / CLOCKS_PER_SEC);
|
|
}
|
|
#endif /* HAVE_CLOCK */
|
|
|
|
#ifdef MS_WIN32
|
|
/* Due to Mark Hammond */
|
|
static PyObject *
|
|
time_clock(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
static LARGE_INTEGER ctrStart;
|
|
static LARGE_INTEGER divisor = {0,0};
|
|
LARGE_INTEGER now, diff, rem;
|
|
|
|
if (!PyArg_NoArgs(args))
|
|
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 */
|
|
|
|
#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(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
double secs;
|
|
if (!PyArg_Parse(args, "d", &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 PyObject *
|
|
tmtotuple(p)
|
|
struct tm *p;
|
|
{
|
|
return Py_BuildValue("(iiiiiiiii)",
|
|
p->tm_year + 1900,
|
|
p->tm_mon + 1, /* Want January == 1 */
|
|
p->tm_mday,
|
|
p->tm_hour,
|
|
p->tm_min,
|
|
p->tm_sec,
|
|
(p->tm_wday + 6) % 7, /* Want Monday == 0 */
|
|
p->tm_yday + 1, /* Want January, 1 == 1 */
|
|
p->tm_isdst);
|
|
}
|
|
|
|
static PyObject *
|
|
time_convert(when, function)
|
|
time_t when;
|
|
struct tm * (*function) Py_PROTO((const time_t *));
|
|
{
|
|
struct tm *p;
|
|
errno = 0;
|
|
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(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
double when;
|
|
if (!PyArg_Parse(args, "d", &when))
|
|
return NULL;
|
|
return time_convert((time_t)when, gmtime);
|
|
}
|
|
|
|
static char gmtime_doc[] =
|
|
"gmtime(seconds) -> tuple\n\
|
|
\n\
|
|
Convert seconds since the Epoch to a time tuple expressing UTC (a.k.a. GMT).";
|
|
|
|
static PyObject *
|
|
time_localtime(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
double when;
|
|
if (!PyArg_Parse(args, "d", &when))
|
|
return NULL;
|
|
return time_convert((time_t)when, localtime);
|
|
}
|
|
|
|
static char localtime_doc[] =
|
|
"localtime(seconds) -> tuple\n\
|
|
Convert seconds since the Epoch to a time tuple expressing local time.";
|
|
|
|
static int
|
|
gettmarg(args, p)
|
|
PyObject *args;
|
|
struct tm *p;
|
|
{
|
|
if (!PyArg_Parse(args, "(iiiiiiiii)",
|
|
&p->tm_year,
|
|
&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 (p->tm_year >= 1900)
|
|
p->tm_year -= 1900;
|
|
p->tm_mon--;
|
|
p->tm_wday = (p->tm_wday + 1) % 7;
|
|
p->tm_yday--;
|
|
return 1;
|
|
}
|
|
|
|
#ifdef HAVE_STRFTIME
|
|
static PyObject *
|
|
time_strftime(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
struct tm buf;
|
|
const char *fmt;
|
|
char *outbuf = 0;
|
|
int i;
|
|
|
|
memset((ANY *) &buf, '\0', sizeof(buf));
|
|
|
|
if (!PyArg_ParseTuple(args, "s(iiiiiiiii)",
|
|
&fmt,
|
|
&(buf.tm_year),
|
|
&(buf.tm_mon),
|
|
&(buf.tm_mday),
|
|
&(buf.tm_hour),
|
|
&(buf.tm_min),
|
|
&(buf.tm_sec),
|
|
&(buf.tm_wday),
|
|
&(buf.tm_yday),
|
|
&(buf.tm_isdst)))
|
|
return NULL;
|
|
if (buf.tm_year >= 1900)
|
|
buf.tm_year -= 1900;
|
|
buf.tm_mon--;
|
|
buf.tm_wday = (buf.tm_wday + 1) % 7;
|
|
buf.tm_yday--;
|
|
/* I hate these functions that presume you know how big the output
|
|
* will be ahead of time...
|
|
*/
|
|
for (i = 1024 ; i <= 8192 ; i += 1024) {
|
|
outbuf = malloc(i);
|
|
if (outbuf == NULL) {
|
|
return PyErr_NoMemory();
|
|
}
|
|
if (strftime(outbuf, i-1, fmt, &buf) != 0) {
|
|
PyObject *ret;
|
|
ret = PyString_FromString(outbuf);
|
|
free(outbuf);
|
|
return ret;
|
|
}
|
|
free(outbuf);
|
|
}
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"bad strftime format or result too big");
|
|
return NULL;
|
|
}
|
|
|
|
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.";
|
|
#endif /* HAVE_STRFTIME */
|
|
|
|
#ifdef HAVE_STRPTIME
|
|
static PyObject *
|
|
time_strptime(self, args)
|
|
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", &buf, &fmt)) {
|
|
PyErr_SetString(PyExc_ValueError, "invalid argument");
|
|
return NULL;
|
|
}
|
|
s = strptime(buf, fmt, &tm);
|
|
if (s == NULL) {
|
|
PyErr_SetString(PyExc_ValueError, "format mismatch");
|
|
return NULL;
|
|
}
|
|
while (*s && isspace(*s))
|
|
s++;
|
|
if (*s) {
|
|
PyErr_Format(PyExc_ValueError,
|
|
"unconverted data remains: '%.400s'", s);
|
|
return NULL;
|
|
}
|
|
return tmtotuple(&tm);
|
|
}
|
|
|
|
static char strptime_doc[] =
|
|
"strptime(format, string) -> tuple\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(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
struct tm buf;
|
|
char *p;
|
|
if (!gettmarg(args, &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'.";
|
|
|
|
static PyObject *
|
|
time_ctime(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
double dt;
|
|
time_t tt;
|
|
char *p;
|
|
if (!PyArg_Parse(args, "d", &dt))
|
|
return NULL;
|
|
tt = (time_t)dt;
|
|
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)).";
|
|
|
|
#ifdef HAVE_MKTIME
|
|
static PyObject *
|
|
time_mktime(self, args)
|
|
PyObject *self;
|
|
PyObject *args;
|
|
{
|
|
struct tm buf;
|
|
time_t tt;
|
|
tt = time(&tt);
|
|
buf = *localtime(&tt);
|
|
if (!gettmarg(args, &buf))
|
|
return NULL;
|
|
tt = mktime(&buf);
|
|
if (tt == (time_t)(-1)) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"mktime argument out of range");
|
|
return NULL;
|
|
}
|
|
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, 0, time_doc},
|
|
#ifdef HAVE_CLOCK
|
|
{"clock", time_clock, 0, clock_doc},
|
|
#endif
|
|
{"sleep", time_sleep, 0, sleep_doc},
|
|
{"gmtime", time_gmtime, 0, gmtime_doc},
|
|
{"localtime", time_localtime, 0, localtime_doc},
|
|
{"asctime", time_asctime, 0, asctime_doc},
|
|
{"ctime", time_ctime, 0, ctime_doc},
|
|
#ifdef HAVE_MKTIME
|
|
{"mktime", time_mktime, 0, mktime_doc},
|
|
#endif
|
|
#ifdef HAVE_STRFTIME
|
|
{"strftime", time_strftime, 1, strftime_doc},
|
|
#endif
|
|
#ifdef HAVE_STRPTIME
|
|
{"strptime", time_strptime, 1, strptime_doc},
|
|
#endif
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
static void
|
|
ins(d, name, v)
|
|
PyObject *d;
|
|
char *name;
|
|
PyObject *v;
|
|
{
|
|
if (v == NULL)
|
|
Py_FatalError("Can't initialize time module -- NULL value");
|
|
if (PyDict_SetItemString(d, name, v) != 0)
|
|
Py_FatalError(
|
|
"Can't initialize time module -- PyDict_SetItemString failed");
|
|
Py_DECREF(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 (0-61, to allow for leap seconds)\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\
|
|
";
|
|
|
|
|
|
void
|
|
inittime()
|
|
{
|
|
PyObject *m, *d;
|
|
m = Py_InitModule3("time", time_methods, module_doc);
|
|
d = PyModule_GetDict(m);
|
|
#ifdef HAVE_TZNAME
|
|
tzset();
|
|
ins(d, "timezone", PyInt_FromLong((long)timezone));
|
|
#ifdef HAVE_ALTZONE
|
|
ins(d, "altzone", PyInt_FromLong((long)altzone));
|
|
#else
|
|
ins(d, "altzone", PyInt_FromLong((long)timezone-3600));
|
|
#endif
|
|
ins(d, "daylight", PyInt_FromLong((long)daylight));
|
|
ins(d, "tzname", Py_BuildValue("(zz)", tzname[0], tzname[1]));
|
|
#else /* !HAVE_TZNAME */
|
|
#if HAVE_TM_ZONE
|
|
{
|
|
#define YEAR ((time_t)((365 * 24 + 6) * 3600))
|
|
time_t t;
|
|
struct tm *p;
|
|
long winterzone, summerzone;
|
|
char wintername[10], summername[10];
|
|
/* XXX This won't work on the southern hemisphere.
|
|
XXX Anybody got a better idea? */
|
|
t = (time((time_t *)0) / YEAR) * YEAR;
|
|
p = localtime(&t);
|
|
winterzone = -p->tm_gmtoff;
|
|
strncpy(wintername, p->tm_zone ? p->tm_zone : " ", 9);
|
|
wintername[9] = '\0';
|
|
t += YEAR/2;
|
|
p = localtime(&t);
|
|
summerzone = -p->tm_gmtoff;
|
|
strncpy(summername, p->tm_zone ? p->tm_zone : " ", 9);
|
|
summername[9] = '\0';
|
|
ins(d, "timezone", PyInt_FromLong(winterzone));
|
|
ins(d, "altzone", PyInt_FromLong(summerzone));
|
|
ins(d, "daylight",
|
|
PyInt_FromLong((long)(winterzone != summerzone)));
|
|
ins(d, "tzname",
|
|
Py_BuildValue("(zz)", wintername, summername));
|
|
}
|
|
#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 */
|
|
#endif /* !HAVE_TZNAME */
|
|
if (PyErr_Occurred())
|
|
Py_FatalError("Can't initialize time module");
|
|
}
|
|
|
|
|
|
/* Implement floattime() for various platforms */
|
|
|
|
static double
|
|
floattime()
|
|
{
|
|
/* 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) && !defined(__BEOS__)
|
|
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
|
|
#ifdef MPW
|
|
floatsleep(double secs)
|
|
#else
|
|
floatsleep(secs)
|
|
double secs;
|
|
#endif /* MPW */
|
|
{
|
|
/* 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) {
|
|
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 Py_PROTO((double, double));
|
|
extern double floor Py_PROTO((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
|
|
/* XXX Can't interrupt this sleep */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
Sleep((int)(secs*1000));
|
|
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. */
|
|
{
|
|
bigtime_t frac, seconds;
|
|
|
|
extern double fmod Py_PROTO((double,double));
|
|
extern double floor Py_PROTO((double));
|
|
|
|
if( secs <= 0.0 ) {
|
|
return;
|
|
}
|
|
|
|
frac = (bigtime_t)fmod( secs, 1.0 );
|
|
seconds = (bigtime_t)floor( secs );
|
|
|
|
Py_BEGIN_ALLOW_THREADS
|
|
if( snooze( seconds * (bigtime_t)1000 + frac ) == B_INTERRUPTED ) {
|
|
Py_BLOCK_THREADS
|
|
PyErr_SetFromErrno( PyExc_IOError );
|
|
return -1;
|
|
}
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
#else /* !__BEOS__ */
|
|
/* XXX Can't interrupt this sleep */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
sleep((int)secs);
|
|
Py_END_ALLOW_THREADS
|
|
#endif /* !__BEOS__ */
|
|
#endif /* !PYOS_OS2 */
|
|
#endif /* !MS_WIN32 */
|
|
#endif /* !MSDOS */
|
|
#endif /* !__WATCOMC__ || __QNX__ */
|
|
#endif /* !macintosh */
|
|
#endif /* !HAVE_SELECT */
|
|
return 0;
|
|
}
|