/* Copyright (C) 2000, 2004 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.   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; see the file COPYING.LIB.  If not,   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,   Boston, MA 02111-1307, USA.  */#include <errno.h>#include <pthread.h>#include <time.h>#include "posix-timer.h"/* Get current value of timer TIMERID and store it in VLAUE.  */inttimer_gettime (timerid, value)     timer_t timerid;     struct itimerspec *value;{  struct timer_node *timer;  struct timespec now, expiry;  int retval = -1, armed = 0, valid;  clock_t clock = 0;  pthread_mutex_lock (&__timer_mutex);  timer = timer_id2ptr (timerid);  valid = timer_valid (timer);  if (valid) {    armed = timer->armed;    expiry = timer->expirytime;    clock = timer->clock;    value->it_interval = timer->value.it_interval;  }  pthread_mutex_unlock (&__timer_mutex);  if (valid)    {      if (armed)	{	  clock_gettime (clock, &now);	  if (timespec_compare (&now, &expiry) < 0)	    timespec_sub (&value->it_value, &expiry, &now);	  else	    {	      value->it_value.tv_sec = 0;	      value->it_value.tv_nsec = 0;	    }	}      else	{	  value->it_value.tv_sec = 0;	  value->it_value.tv_nsec = 0;	}      retval = 0;    }  else    __set_errno (EINVAL);  return retval;}