68 lines
3.5 KiB
C
68 lines
3.5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/rusage.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/calls/struct/tms.h"
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#include "libc/conv/conv.h"
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#include "libc/dce.h"
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#include "libc/nt/accounting.h"
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#include "libc/nt/runtime.h"
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#include "libc/runtime/sysconf.h"
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#include "libc/sysv/consts/rusage.h"
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#include "libc/time/time.h"
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static noinline long times2(struct tms *out_times, struct rusage *ru) {
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long tick;
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struct timeval tv;
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tick = sysconf(_SC_CLK_TCK);
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if (!IsWindows()) {
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if (getrusage(RUSAGE_SELF, ru) == -1) return -1;
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out_times->tms_utime = convertmicros(&ru->ru_utime, tick);
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out_times->tms_stime = convertmicros(&ru->ru_stime, tick);
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if (getrusage(RUSAGE_CHILDREN, ru) == -1) return -1;
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out_times->tms_cutime = convertmicros(&ru->ru_utime, tick);
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out_times->tms_cstime = convertmicros(&ru->ru_stime, tick);
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} else {
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struct NtFileTime CreationTime, ExitTime, KernelTime, UserTime;
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if (!GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime,
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&KernelTime, &UserTime)) {
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return winerr();
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}
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FileTimeToTimeVal(&tv, UserTime);
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out_times->tms_utime = convertmicros(&tv, tick);
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FileTimeToTimeVal(&tv, KernelTime);
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out_times->tms_stime = convertmicros(&tv, tick);
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out_times->tms_cutime = 0;
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out_times->tms_cstime = 0;
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}
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if (gettimeofday(&tv, NULL) == -1) return -1;
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return convertmicros(&tv, tick);
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}
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/**
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* Returns accounting data for process on time-sharing system.
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*/
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long times(struct tms *out_times) {
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struct rusage ru;
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return times2(out_times, &ru);
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}
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