/* Return CPU and real time used by process and its children.  Hurd version.   Copyright (C) 2001,2002,2003,2004 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 Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 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   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#include <errno.h>#include <stddef.h>#include <sys/resource.h>#include <sys/times.h>#include <sys/time.h>#include <time.h>#include <mach.h>#include <mach/task_info.h>#include <hurd.h>static inline clock_tclock_from_time_value (const time_value_t *t){  return t->seconds * 1000000 + t->microseconds;}/* Store the CPU time used by this process and all its   dead children (and their dead children) in BUFFER.   Return the elapsed real time, or (clock_t) -1 for errors.   All times are in CLK_TCKths of a second.  */clock_t__times (struct tms *tms){  struct task_basic_info bi;  struct task_thread_times_info tti;  mach_msg_type_number_t count;  union { time_value_t tvt; struct timeval tv; } now;  error_t err;  count = TASK_BASIC_INFO_COUNT;  err = __task_info (__mach_task_self (), TASK_BASIC_INFO,		     (task_info_t) &bi, &count);  if (err)    return __hurd_fail (err);  count = TASK_THREAD_TIMES_INFO_COUNT;  err = __task_info (__mach_task_self (), TASK_THREAD_TIMES_INFO,		     (task_info_t) &tti, &count);  if (err)    return __hurd_fail (err);  tms->tms_utime = (clock_from_time_value (&bi.user_time)		    + clock_from_time_value (&tti.user_time));  tms->tms_stime = (clock_from_time_value (&bi.system_time)		    + clock_from_time_value (&tti.system_time));  /* XXX This can't be implemented until getrusage(RUSAGE_CHILDREN) can be.  */  tms->tms_cutime = tms->tms_cstime = 0;  if (__gettimeofday (&now.tv, NULL) < 0)    return -1;  return (clock_from_time_value (&now.tvt)	  - clock_from_time_value (&bi.creation_time));}weak_alias (__times, times)