From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/generic/vtimes.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 sysdeps/generic/vtimes.c (limited to 'sysdeps/generic/vtimes.c') diff --git a/sysdeps/generic/vtimes.c b/sysdeps/generic/vtimes.c new file mode 100644 index 0000000000..faa053ff79 --- /dev/null +++ b/sysdeps/generic/vtimes.c @@ -0,0 +1,66 @@ +/* Copyright (C) 1991 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include +#include +#include +#include + +/* Return the number of 1/VTIMES_UNITS_PER_SECOND-second + units in the `struct timeval' TV. */ +#define TIMEVAL_TO_VTIMES(tv) \ + ((tv.tv_sec * VTIMES_UNITS_PER_SECOND) + \ + (tv.tv_usec * VTIMES_UNITS_PER_SECOND / 1000000)) + +/* If VT is not NULL, write statistics for WHO into *VT. + Return 0 for success, -1 for failure. */ +static int +DEFUN(vtimes_one, (vt, who), + struct vtimes *vt AND enum __rusage_who who) +{ + if (vt != NULL) + { + struct rusage usage; + + if (getrusage(who, &usage) < 0) + return -1; + + vt->vm_utime = TIMEVAL_TO_VTIMES(usage.ru_utime); + vt->vm_stime = TIMEVAL_TO_VTIMES(usage.ru_stime); + vt->vm_idsrss = usage.ru_idrss + usage.ru_isrss; + vt->vm_majflt = usage.ru_majflt; + vt->vm_minflt = usage.ru_minflt; + vt->vm_nswap = usage.ru_nswap; + vt->vm_inblk = usage.ru_inblock; + vt->vm_oublk = usage.ru_oublock; + } + return 0; +} + +/* If CURRENT is not NULL, write statistics for the current process into + *CURRENT. If CHILD is not NULL, write statistics for all terminated child + processes into *CHILD. Returns 0 for success, -1 for failure. */ +int +DEFUN(vtimes, (current, child), + struct vtimes *current AND struct vtimes *child) +{ + if (vtimes_one(current, RUSAGE_SELF) < 0 || + vtimes_one(child, RUSAGE_CHILDREN) < 0) + return -1; + return 0; +} -- cgit v1.2.3