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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 <sys/resource.h>
- #include <time.h>
- #include <sys/time.h>
-
- #ifdef __GNUC__
- __inline
- #endif
- static clock_t
- DEFUN(timeval_to_clock_t, (tv), CONST struct timeval *tv)
- {
- return (clock_t) ((tv->tv_sec * CLK_TCK) +
- (tv->tv_usec * CLK_TCK / 1000));
- }
-
- /* Return the time used by the program so far (user time + system time). */
- clock_t
- DEFUN_VOID(clock)
- {
- struct rusage usage;
-
- if (__getrusage(RUSAGE_SELF, &usage) < 0)
- return (clock_t) -1;
-
- return (timeval_to_clock_t(&usage.ru_stime) +
- timeval_to_clock_t(&usage.ru_utime)) * CLOCKS_PER_SEC;
- }
-