zbar-windows/zbar/refcnt.c

48 lines
1.4 KiB
C

/*------------------------------------------------------------------------
* Copyright 2007-2009 (c) Jeff Brown <spadix@users.sourceforge.net>
*
* This file is part of the ZBar Bar Code Reader.
*
* The ZBar Bar Code Reader is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* The ZBar Bar Code Reader 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 Public License for more details.
*
* You should have received a copy of the GNU Lesser Public License
* along with the ZBar Bar Code Reader; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* http://sourceforge.net/projects/zbar
*------------------------------------------------------------------------*/
#include "refcnt.h"
#if !defined(_WIN32) && !defined(TARGET_OS_MAC) && defined(HAVE_LIBPTHREAD)
pthread_once_t initialized = PTHREAD_ONCE_INIT;
pthread_mutex_t _zbar_reflock;
static void initialize(void)
{
pthread_mutex_init(&_zbar_reflock, NULL);
}
void _zbar_refcnt_init()
{
pthread_once(&initialized, initialize);
}
#else
void _zbar_refcnt_init()
{
}
#endif