/* 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> /* libc_hidden_proto(lrand48_r) */ /* libc_hidden_proto(srand48_r) */ /* libc_hidden_proto(gettimeofday) */ /* The RPC code is not threadsafe, but new code should be threadsafe. */ #include <bits/uClibc_mutex.h> __UCLIBC_MUTEX_STATIC(mylock, PTHREAD_MUTEX_INITIALIZER); static smallint is_initialized; static struct drand48_data __rpc_lrand48_data; u_long _create_xid (void) attribute_hidden; u_long _create_xid (void) { long res; __UCLIBC_MUTEX_LOCK(mylock); 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); __UCLIBC_MUTEX_UNLOCK(mylock); return res; }