mirror of https://github.com/python/cpython
879 lines
22 KiB
C
879 lines
22 KiB
C
/***********************************************************
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI or Corporation for National Research Initiatives or
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CNRI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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While CWI is the initial source for this software, a modified version
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is made available by the Corporation for National Research Initiatives
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(CNRI) at the Internet address ftp://ftp.python.org.
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Time module */
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#include "Python.h"
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#include <ctype.h>
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#ifdef HAVE_SELECT
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#include "mymath.h"
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#endif
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#ifdef macintosh
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#include <time.h>
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#include <OSUtils.h>
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#ifdef USE_GUSI2
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/* GUSI, the I/O library which has the time() function and such uses the
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** Mac epoch of 1904. MSL, the C library which has localtime() and so uses
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** the ANSI epoch of 1900.
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*/
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#define GUSI_TO_MSL_EPOCH (4*365*24*60*60)
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#endif /* USE_GUSI2 */
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#else
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#include <sys/types.h>
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#endif
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#ifdef QUICKWIN
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#include <io.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if defined(HAVE_SELECT) && !defined(__BEOS__)
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#include "myselect.h"
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#else
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#include "mytime.h"
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#endif
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#ifdef HAVE_FTIME
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#include <sys/timeb.h>
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#if !defined(MS_WINDOWS) && !defined(PYOS_OS2)
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extern int ftime();
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#endif /* MS_WINDOWS */
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#endif /* HAVE_FTIME */
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#if defined(__WATCOMC__) && !defined(__QNX__)
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#include <i86.h>
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#else
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#ifdef MS_WINDOWS
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#include <windows.h>
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#ifdef MS_WIN16
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/* These overrides not needed for Win32 */
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#define timezone _timezone
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#define tzname _tzname
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#define daylight _daylight
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#define altzone _altzone
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#endif /* MS_WIN16 */
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#endif /* MS_WINDOWS */
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#endif /* !__WATCOMC__ || __QNX__ */
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#ifdef MS_WIN32
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/* Win32 has better clock replacement */
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#include <largeint.h>
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#undef HAVE_CLOCK /* We have our own version down below */
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#endif /* MS_WIN32 */
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#if defined(PYCC_VACPP)
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#include <sys/time.h>
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#endif
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#ifdef __BEOS__
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/* For bigtime_t, snooze(). - [cjh] */
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#include <support/SupportDefs.h>
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#include <kernel/OS.h>
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#ifndef CLOCKS_PER_SEC
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/* C'mon, fix the bloody headers... - [cjh] */
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#define CLOCKS_PER_SEC 1000
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#endif
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#endif
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/* Forward declarations */
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static int floatsleep Py_PROTO((double));
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static double floattime Py_PROTO(());
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/* For Y2K check */
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static PyObject *moddict;
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#ifdef macintosh
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/* Our own timezone. We have enough information to deduce whether
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** DST is on currently, but unfortunately we cannot put it to good
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** use because we don't know the rules (and that is needed to have
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** localtime() return correct tm_isdst values for times other than
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** the current time. So, we cop out and only tell the user the current
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** timezone.
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*/
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static long timezone;
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static void
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initmactimezone()
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{
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MachineLocation loc;
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long delta;
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ReadLocation(&loc);
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if (loc.latitude == 0 && loc.longitude == 0 && loc.u.gmtDelta == 0)
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return;
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delta = loc.u.gmtDelta & 0x00FFFFFF;
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if (delta & 0x00800000)
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delta |= 0xFF000000;
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timezone = -delta;
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}
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#endif /* macintosh */
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static PyObject *
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time_time(self, args)
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PyObject *self;
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PyObject *args;
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{
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double secs;
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if (!PyArg_NoArgs(args))
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return NULL;
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secs = floattime();
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if (secs == 0.0) {
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PyErr_SetFromErrno(PyExc_IOError);
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return NULL;
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}
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return PyFloat_FromDouble(secs);
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}
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static char time_doc[] =
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"time() -> floating point number\n\
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\n\
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Return the current time in seconds since the Epoch.\n\
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Fractions of a second may be present if the system clock provides them.";
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#ifdef HAVE_CLOCK
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#ifndef CLOCKS_PER_SEC
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#ifdef CLK_TCK
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#define CLOCKS_PER_SEC CLK_TCK
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#else
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#define CLOCKS_PER_SEC 1000000
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#endif
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#endif
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static PyObject *
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time_clock(self, args)
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PyObject *self;
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PyObject *args;
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{
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if (!PyArg_NoArgs(args))
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return NULL;
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return PyFloat_FromDouble(((double)clock()) / CLOCKS_PER_SEC);
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}
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#endif /* HAVE_CLOCK */
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#ifdef MS_WIN32
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/* Due to Mark Hammond */
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static PyObject *
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time_clock(self, args)
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PyObject *self;
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PyObject *args;
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{
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static LARGE_INTEGER ctrStart;
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static LARGE_INTEGER divisor = {0,0};
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LARGE_INTEGER now, diff, rem;
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if (!PyArg_NoArgs(args))
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return NULL;
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if (LargeIntegerEqualToZero(divisor)) {
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QueryPerformanceCounter(&ctrStart);
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if (!QueryPerformanceFrequency(&divisor) ||
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LargeIntegerEqualToZero(divisor)) {
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/* Unlikely to happen -
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this works on all intel machines at least!
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Revert to clock() */
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return PyFloat_FromDouble(clock());
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}
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}
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QueryPerformanceCounter(&now);
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diff = LargeIntegerSubtract(now, ctrStart);
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diff = LargeIntegerDivide(diff, divisor, &rem);
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/* XXX - we assume both divide results fit in 32 bits. This is
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true on Intels. First person who can afford a machine that
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doesnt deserves to fix it :-)
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*/
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return PyFloat_FromDouble((double)diff.LowPart +
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((double)rem.LowPart / (double)divisor.LowPart));
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}
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#define HAVE_CLOCK /* So it gets included in the methods */
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#endif /* MS_WIN32 */
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#ifdef HAVE_CLOCK
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static char clock_doc[] =
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"clock() -> floating point number\n\
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\n\
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Return the CPU time or real time since the start of the process or since\n\
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the first call to clock(). This has as much precision as the system records.";
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#endif
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static PyObject *
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time_sleep(self, args)
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PyObject *self;
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PyObject *args;
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{
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double secs;
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if (!PyArg_Parse(args, "d", &secs))
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return NULL;
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if (floatsleep(secs) != 0)
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return NULL;
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Py_INCREF(Py_None);
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return Py_None;
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}
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static char sleep_doc[] =
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"sleep(seconds)\n\
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\n\
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Delay execution for a given number of seconds. The argument may be\n\
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a floating point number for subsecond precision.";
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static PyObject *
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tmtotuple(p)
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struct tm *p;
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{
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return Py_BuildValue("(iiiiiiiii)",
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p->tm_year + 1900,
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p->tm_mon + 1, /* Want January == 1 */
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p->tm_mday,
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p->tm_hour,
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p->tm_min,
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p->tm_sec,
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(p->tm_wday + 6) % 7, /* Want Monday == 0 */
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p->tm_yday + 1, /* Want January, 1 == 1 */
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p->tm_isdst);
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}
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static PyObject *
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time_convert(when, function)
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time_t when;
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struct tm * (*function) Py_PROTO((const time_t *));
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{
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struct tm *p;
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errno = 0;
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#if defined(macintosh) && defined(USE_GUSI2)
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when = when + GUSI_TO_MSL_EPOCH;
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#endif
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p = function(&when);
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if (p == NULL) {
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#ifdef EINVAL
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if (errno == 0)
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errno = EINVAL;
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#endif
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return PyErr_SetFromErrno(PyExc_IOError);
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}
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return tmtotuple(p);
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}
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static PyObject *
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time_gmtime(self, args)
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PyObject *self;
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PyObject *args;
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{
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double when;
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if (!PyArg_Parse(args, "d", &when))
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return NULL;
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return time_convert((time_t)when, gmtime);
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}
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static char gmtime_doc[] =
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"gmtime(seconds) -> tuple\n\
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\n\
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Convert seconds since the Epoch to a time tuple expressing UTC (a.k.a. GMT).";
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static PyObject *
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time_localtime(self, args)
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PyObject *self;
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PyObject *args;
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{
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double when;
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if (!PyArg_Parse(args, "d", &when))
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return NULL;
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return time_convert((time_t)when, localtime);
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}
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static char localtime_doc[] =
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"localtime(seconds) -> tuple\n\
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Convert seconds since the Epoch to a time tuple expressing local time.";
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static int
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gettmarg(args, p)
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PyObject *args;
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struct tm *p;
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{
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int y;
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memset((ANY *) p, '\0', sizeof(struct tm));
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if (!PyArg_Parse(args, "(iiiiiiiii)",
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&y,
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&p->tm_mon,
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&p->tm_mday,
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&p->tm_hour,
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&p->tm_min,
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&p->tm_sec,
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&p->tm_wday,
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&p->tm_yday,
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&p->tm_isdst))
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return 0;
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if (y < 1900) {
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PyObject *accept = PyDict_GetItemString(moddict,
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"accept2dyear");
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if (accept == NULL || !PyInt_Check(accept) ||
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PyInt_AsLong(accept) == 0) {
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PyErr_SetString(PyExc_ValueError,
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"year >= 1900 required");
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return 0;
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}
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if (69 <= y && y <= 99)
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y += 1900;
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else if (0 <= y && y <= 68)
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y += 2000;
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else {
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PyErr_SetString(PyExc_ValueError,
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"year out of range (00-99, 1900-*)");
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return 0;
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}
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}
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p->tm_year = y - 1900;
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p->tm_mon--;
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p->tm_wday = (p->tm_wday + 1) % 7;
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p->tm_yday--;
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return 1;
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}
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#ifdef HAVE_STRFTIME
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static PyObject *
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time_strftime(self, args)
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PyObject *self;
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PyObject *args;
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{
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PyObject *tup;
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struct tm buf;
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const char *fmt;
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int fmtlen, buflen;
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char *outbuf = 0;
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int i;
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memset((ANY *) &buf, '\0', sizeof(buf));
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if (!PyArg_ParseTuple(args, "sO:strftime", &fmt, &tup)
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|| !gettmarg(tup, &buf))
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return NULL;
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fmtlen = strlen(fmt);
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/* I hate these functions that presume you know how big the output
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* will be ahead of time...
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*/
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for (i = 1024; ; i += i) {
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outbuf = malloc(i);
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if (outbuf == NULL) {
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return PyErr_NoMemory();
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}
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buflen = strftime(outbuf, i, fmt, &buf);
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if (buflen > 0 || i >= 256 * fmtlen) {
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/* If the buffer is 256 times as long as the format,
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it's probably not failing for lack of room!
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More likely, the format yields an empty result,
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e.g. an empty format, or %Z when the timezone
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is unknown. */
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PyObject *ret;
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ret = PyString_FromStringAndSize(outbuf, buflen);
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free(outbuf);
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return ret;
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}
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free(outbuf);
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}
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}
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static char strftime_doc[] =
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"strftime(format, tuple) -> string\n\
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\n\
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Convert a time tuple to a string according to a format specification.\n\
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See the library reference manual for formatting codes.";
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#endif /* HAVE_STRFTIME */
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#ifdef HAVE_STRPTIME
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/* extern char *strptime(); /* Enable this if it's not declared in <time.h> */
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static PyObject *
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time_strptime(self, args)
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PyObject *self;
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PyObject *args;
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{
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struct tm tm;
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char *fmt = "%a %b %d %H:%M:%S %Y";
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char *buf;
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char *s;
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if (!PyArg_ParseTuple(args, "s|s:strptime", &buf, &fmt))
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return NULL;
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memset((ANY *) &tm, '\0', sizeof(tm));
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s = strptime(buf, fmt, &tm);
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if (s == NULL) {
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PyErr_SetString(PyExc_ValueError, "format mismatch");
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return NULL;
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}
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while (*s && isspace(*s))
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s++;
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if (*s) {
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PyErr_Format(PyExc_ValueError,
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"unconverted data remains: '%.400s'", s);
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return NULL;
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}
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return tmtotuple(&tm);
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}
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static char strptime_doc[] =
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"strptime(string, format) -> tuple\n\
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Parse a string to a time tuple according to a format specification.\n\
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See the library reference manual for formatting codes (same as strftime()).";
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#endif /* HAVE_STRPTIME */
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static PyObject *
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time_asctime(self, args)
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PyObject *self;
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PyObject *args;
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{
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PyObject *tup;
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struct tm buf;
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char *p;
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if (!PyArg_ParseTuple(args, "O:asctime", &tup))
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return NULL;
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if (!gettmarg(tup, &buf))
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return NULL;
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p = asctime(&buf);
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if (p[24] == '\n')
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p[24] = '\0';
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return PyString_FromString(p);
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}
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static char asctime_doc[] =
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"asctime(tuple) -> string\n\
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\n\
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Convert a time tuple to a string, e.g. 'Sat Jun 06 16:26:11 1998'.";
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static PyObject *
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time_ctime(self, args)
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PyObject *self;
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PyObject *args;
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{
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double dt;
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time_t tt;
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char *p;
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if (!PyArg_Parse(args, "d", &dt))
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return NULL;
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tt = (time_t)dt;
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#if defined(macintosh) && defined(USE_GUSI2)
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tt = tt + GUSI_TO_MSL_EPOCH;
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#endif
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p = ctime(&tt);
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if (p == NULL) {
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PyErr_SetString(PyExc_ValueError, "unconvertible time");
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return NULL;
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}
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if (p[24] == '\n')
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p[24] = '\0';
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return PyString_FromString(p);
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}
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static char ctime_doc[] =
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"ctime(seconds) -> string\n\
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\n\
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Convert a time in seconds since the Epoch to a string in local time.\n\
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This is equivalent to asctime(localtime(seconds)).";
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#ifdef HAVE_MKTIME
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static PyObject *
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time_mktime(self, args)
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PyObject *self;
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PyObject *args;
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{
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PyObject *tup;
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struct tm buf;
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time_t tt;
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if (!PyArg_ParseTuple(args, "O:mktime", &tup))
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return NULL;
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tt = time(&tt);
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buf = *localtime(&tt);
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if (!gettmarg(tup, &buf))
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return NULL;
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tt = mktime(&buf);
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if (tt == (time_t)(-1)) {
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PyErr_SetString(PyExc_OverflowError,
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"mktime argument out of range");
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return NULL;
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}
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#if defined(macintosh) && defined(USE_GUSI2)
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tt = tt - GUSI_TO_MSL_EPOCH;
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#endif
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return PyFloat_FromDouble((double)tt);
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}
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static char mktime_doc[] =
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"mktime(tuple) -> floating point number\n\
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\n\
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Convert a time tuple in local time to seconds since the Epoch.";
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#endif /* HAVE_MKTIME */
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static PyMethodDef time_methods[] = {
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{"time", time_time, 0, time_doc},
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#ifdef HAVE_CLOCK
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{"clock", time_clock, 0, clock_doc},
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#endif
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{"sleep", time_sleep, 0, sleep_doc},
|
|
{"gmtime", time_gmtime, 0, gmtime_doc},
|
|
{"localtime", time_localtime, 0, localtime_doc},
|
|
{"asctime", time_asctime, 1, asctime_doc},
|
|
{"ctime", time_ctime, 0, ctime_doc},
|
|
#ifdef HAVE_MKTIME
|
|
{"mktime", time_mktime, 1, 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 (0-59)\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()
|
|
{
|
|
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 = 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__)
|
|
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__ */
|
|
#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 */
|
|
#endif /* !HAVE_TZNAME || __GLIBC__ */
|
|
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)
|
|
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) {
|
|
#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 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. */
|
|
{
|
|
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__ */
|
|
/* 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;
|
|
}
|