Mercurial > octave
view liboctave/system/oct-time.cc @ 30564:796f54d4ddbf stable
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2021.
In all .txi and .texi files except gpl.txi and gpl.texi in the
doc/liboctave and doc/interpreter directories, change the copyright
to "Octave Project Developers", the same as used for other source
files. Update copyright notices for 2022 (not done since 2019). For
gpl.txi and gpl.texi, change the copyright notice to be "Free Software
Foundation, Inc." and leave the date at 2007 only because this file
only contains the text of the GPL, not anything created by the Octave
Project Developers.
Add Paul Thomas to contributors.in.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 28 Dec 2021 18:22:40 -0500 |
parents | f2f386d431ff |
children | 243b51ec9ff0 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1999-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cmath> #include <ctime> #include <iomanip> #include <limits> #include <ostream> #if defined (OCTAVE_USE_WINDOWS_API) # include <windows.h> #endif #include "lo-error.h" #include "lo-utils.h" #include "lo-sysdep.h" #include "oct-locbuf.h" #include "oct-time.h" #include "octave-preserve-stream-state.h" #include "strftime-wrapper.h" #include "strptime-wrapper.h" #include "time-wrappers.h" namespace octave { namespace sys { time::time (double d) : m_ot_unix_time (static_cast<time_t> (d)), m_ot_usec (0) { double ip; m_ot_usec = static_cast<int> (std::modf (d, &ip) * 1e6); } time::time (const base_tm& tm) : m_ot_unix_time (), m_ot_usec () { struct ::tm t; t.tm_sec = tm.sec (); t.tm_min = tm.min (); t.tm_hour = tm.hour (); t.tm_mday = tm.mday (); t.tm_mon = tm.mon (); t.tm_year = tm.year (); t.tm_wday = tm.wday (); t.tm_yday = tm.yday (); t.tm_isdst = tm.isdst (); #if defined (HAVE_TM_GMTOFF) t.tm_gmtoff = tm.gmtoff (); #endif #if defined (HAVE_STRUCT_TM_TM_ZONE) std::string s = tm.zone (); char *ps = strsave (s.c_str ()); t.tm_zone = ps; #endif m_ot_unix_time = octave_mktime_wrapper (&t); #if defined (HAVE_STRUCT_TM_TM_ZONE) delete [] ps; #endif m_ot_usec = tm.usec (); } std::string time::ctime (void) const { return localtime (*this).asctime (); } std::ostream& operator << (std::ostream& os, const time& ot) { preserve_stream_state stream_state (os); os << ot.m_ot_unix_time << '.' << std::setw (6) << std::setfill ('0') << ot.m_ot_usec; return os; } void time::stamp (void) { octave_gettimeofday_wrapper (&m_ot_unix_time, &m_ot_usec); } // From the mktime() manual page: // // The mktime() function converts a broken-down time structure, // expressed as local time, to calendar time representation. // // <snip> // // If structure members are outside their legal interval, they // will be normalized (so that, e.g., 40 October is changed into // 9 November). // // So, we no longer check limits here. #define DEFINE_SET_FIELD_FCN(type, f, lo, hi) \ base_tm& \ base_tm::f (type v) \ { \ m_ ## f = v; \ \ return *this; \ } #define DEFINE_SET_INT_FIELD_FCN(f, lo, hi) \ DEFINE_SET_FIELD_FCN (int, f, lo, hi) DEFINE_SET_INT_FIELD_FCN (usec, 0, 1000000) DEFINE_SET_INT_FIELD_FCN (sec, 0, 61) DEFINE_SET_INT_FIELD_FCN (min, 0, 59) DEFINE_SET_INT_FIELD_FCN (hour, 0, 23) DEFINE_SET_INT_FIELD_FCN (mday, 1, 31) DEFINE_SET_INT_FIELD_FCN (mon, 0, 11) DEFINE_SET_INT_FIELD_FCN (year, std::numeric_limits<int>::min (), std::numeric_limitd<int>::max ()) DEFINE_SET_INT_FIELD_FCN (wday, 0, 6) DEFINE_SET_INT_FIELD_FCN (yday, 0, 365) DEFINE_SET_INT_FIELD_FCN (isdst, 0, 1) DEFINE_SET_FIELD_FCN (long, gmtoff, -86400, 0) base_tm& base_tm::zone (const std::string& s) { m_zone = s; return *this; } #if ! defined STRFTIME_BUF_INITIAL_SIZE # define STRFTIME_BUF_INITIAL_SIZE 128 #endif std::string base_tm::strftime (const std::string& fmt) const { std::string retval; if (! fmt.empty ()) { struct ::tm t; t.tm_sec = m_sec; t.tm_min = m_min; t.tm_hour = m_hour; t.tm_mday = m_mday; t.tm_mon = m_mon; t.tm_year = m_year; t.tm_wday = m_wday; t.tm_yday = m_yday; t.tm_isdst = m_isdst; #if defined (HAVE_TM_GMTOFF) t.tm_gmtoff = m_gmtoff; #endif #if defined (HAVE_STRUCT_TM_TM_ZONE) char *ps = strsave (m_zone.c_str ()); t.tm_zone = ps; #endif const char *fmt_str = fmt.c_str (); char *buf = nullptr; std::size_t bufsize = STRFTIME_BUF_INITIAL_SIZE; std::size_t chars_written = 0; while (chars_written == 0) { delete [] buf; buf = new char [bufsize]; buf[0] = '\0'; chars_written = octave_strftime_wrapper (buf, bufsize, fmt_str, &t); bufsize *= 2; } #if defined (HAVE_STRUCT_TM_TM_ZONE) delete [] ps; #endif retval = buf; delete [] buf; } return retval; } void base_tm::init (void *p) { if (! p) return; struct ::tm *t = static_cast<struct ::tm *> (p); m_sec = t->tm_sec; m_min = t->tm_min; m_hour = t->tm_hour; m_mday = t->tm_mday; m_mon = t->tm_mon; m_year = t->tm_year; m_wday = t->tm_wday; m_yday = t->tm_yday; m_isdst = t->tm_isdst; #if defined (HAVE_TM_GMTOFF) m_gmtoff = t->tm_gmtoff; #elif defined (OCTAVE_USE_WINDOWS_API) TIME_ZONE_INFORMATION tzi; GetTimeZoneInformationForYear (m_year, nullptr, &tzi); if (m_isdst) m_gmtoff = -60 * (tzi.Bias + tzi.DaylightBias); else m_gmtoff = -60 * (tzi.Bias + tzi.StandardBias); #endif #if defined (HAVE_STRUCT_TM_TM_ZONE) if (t->tm_zone) m_zone = t->tm_zone; #elif defined (OCTAVE_USE_WINDOWS_API) if (m_isdst) m_zone = sys::u8_from_wstring (tzi.DaylightName); else m_zone = sys::u8_from_wstring (tzi.StandardName); #elif defined (HAVE_TZNAME) if (t->tm_isdst == 0 || t->tm_isdst == 1) m_zone = tzname[t->tm_isdst]; #endif } void localtime::init (const time& ot) { m_usec = ot.usec (); time_t t = ot.unix_time (); base_tm::init (std::localtime (&t)); } void gmtime::init (const time& ot) { m_usec = ot.usec (); time_t t = ot.unix_time (); base_tm::init (std::gmtime (&t)); } void strptime::init (const std::string& str, const std::string& fmt) { struct ::tm t; t.tm_sec = 0; t.tm_min = 0; t.tm_hour = 0; t.tm_mday = 0; t.tm_mon = -1; t.tm_year = std::numeric_limits<int>::min (); t.tm_wday = 0; t.tm_yday = 0; t.tm_isdst = 0; #if defined (HAVE_TM_GMTOFF) t.tm_gmtoff = 0; #endif #if defined (HAVE_STRUCT_TM_TM_ZONE) char *ps = strsave (""); t.tm_zone = ps; #endif const char *p = str.c_str (); char *q = octave_strptime_wrapper (p, fmt.c_str (), &t); // Fill in wday and yday, but only if mday is valid and the mon and year // are filled in, avoiding issues with mktime and invalid dates. if (t.tm_mday != 0 && t.tm_mon >= 0 && t.tm_year != std::numeric_limits<int>::min ()) { t.tm_isdst = -1; octave_mktime_wrapper (&t); } if (t.tm_mon < 0) t.tm_mon = 0; if (t.tm_year == std::numeric_limits<int>::min ()) t.tm_year = 0; if (q) m_nchars = q - p + 1; else m_nchars = 0; base_tm::init (&t); #if defined (HAVE_STRUCT_TM_TM_ZONE) delete [] ps; #endif } void cpu_time::stamp (void) { octave_cpu_time (&m_usr_sec, &m_sys_sec, &m_usr_usec, &m_sys_usec); } void resource_usage::stamp (void) { time_t usr_sec, sys_sec; long usr_usec, sys_usec; octave_getrusage_wrapper (&usr_sec, &sys_sec, &usr_usec, &sys_usec, &m_maxrss, &m_ixrss, &m_idrss, &m_isrss, &m_minflt, &m_majflt, &m_nswap, &m_inblock, &m_oublock, &m_msgsnd, &m_msgrcv, &m_nsignals, &m_nvcsw, &m_nivcsw); m_cpu = cpu_time (usr_sec, sys_sec, usr_usec, sys_usec); } } }