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- /* 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 <ansidecl.h>
- #include <stddef.h>
- #include <sys/vtimes.h>
- #include <sys/resource.h>
-
- /* 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;
- }
-