113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011, 2012.
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This file is part of LibMaxsi.
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LibMaxsi is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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LibMaxsi is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
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time.cpp
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Useful time functions.
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*******************************************************************************/
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#include <libmaxsi/platform.h>
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#include <libmaxsi/memory.h>
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#include <libmaxsi/syscall.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <time.h>
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namespace Maxsi
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{
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namespace Time
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{
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DEFN_SYSCALL1(int, SysUptime, SYSCALL_UPTIME, uintmax_t*);
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extern "C" int uptime(uintmax_t* usecssinceboot)
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{
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return SysUptime(usecssinceboot);
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}
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extern "C" clock_t clock(void)
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{
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errno = ENOTSUP;
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return -1;
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}
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extern "C" int gettimeofday(struct timeval* tp, void* /*tzp*/)
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{
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uintmax_t sinceboot;
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uptime(&sinceboot);
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tp->tv_sec = sinceboot / 1000000ULL;
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tp->tv_usec = sinceboot % 1000000ULL;
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return 0;
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}
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extern "C" time_t time(time_t* t)
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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time_t result = tv.tv_sec;
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return t ? *t = result : result;
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}
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extern "C" struct tm* localtime_r(const time_t* timer, struct tm* ret)
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{
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time_t time = *timer;
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ret->tm_sec = time % 60; // No leap seconds.
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ret->tm_min = (time / 60) % 60;
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ret->tm_hour = (time / 60 / 60) % 24;
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ret->tm_mday = 0;
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ret->tm_mon = 0;
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ret->tm_year = 0;
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ret->tm_wday = 0;
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ret->tm_isdst = 0;
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return ret;
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}
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extern "C" struct tm* gmtime_r(const time_t* timer, struct tm* ret)
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{
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return localtime_r(timer, ret);
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}
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// TODO: Who the hell designed the below two functions? I vote that
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// these be removed from Sortix soon - although that'd require fixing
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// a lot of applications..
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extern "C" struct tm* localtime(const time_t* timer)
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{
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static struct tm hack_localtime_ret;
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return localtime_r(timer, &hack_localtime_ret);
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}
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extern "C" struct tm* gmtime(const time_t* timer)
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{
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static struct tm hack_gmtime_ret;
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return gmtime_r(timer, &hack_gmtime_ret);
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}
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extern "C" char* ctime(const time_t* /*timep*/)
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{
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return (char*) "ctime(3) is not implemented";
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}
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extern "C" int utime(const char* filepath, const struct utimbuf* times)
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{
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// TODO: Sure, I did that! There is no kernel support for this yet.
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return 0;
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}
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}
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}
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