/* Copyright (c) 1998, 2000 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.   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.  */#define __FORCE_GLIBC#include <features.h>#include <unistd.h>#include <stdlib.h>#include <sys/time.h>#include <rpc/rpc.h>/* The RPC code is not threadsafe, but new code should be threadsafe. */#ifdef __UCLIBC_HAS_THREADS__#include <pthread.h>static pthread_mutex_t createxid_lock = PTHREAD_MUTEX_INITIALIZER;# define LOCK	__pthread_mutex_lock(&createxid_lock)# define UNLOCK	__pthread_mutex_unlock(&createxid_lock);#else# define LOCK# define UNLOCK#endifstatic int is_initialized;static struct drand48_data __rpc_lrand48_data;unsigned long_create_xid (void){  unsigned long res;  LOCK;  if (!is_initialized)    {      struct timeval now;      gettimeofday (&now, (struct timezone *) 0);      srand48_r (now.tv_sec ^ now.tv_usec, &__rpc_lrand48_data);      is_initialized = 1;    }  lrand48_r (&__rpc_lrand48_data, &res);  UNLOCK;  return res;}