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/* 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

#endif

static 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;

}