From 7fe38836a11b0c3827d4e4c79c7d24ddf4534957 Mon Sep 17 00:00:00 2001 From: dougb Date: Tue, 5 Jun 2007 22:15:38 +0000 Subject: Add a custom atomic.h file which implements the C versions of the code we already have assembly versions of. Written by: imp --- contrib/bind9/lib/isc/arm/include/isc/atomic.h | 59 ++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 contrib/bind9/lib/isc/arm/include/isc/atomic.h (limited to 'contrib/bind9/lib/isc') diff --git a/contrib/bind9/lib/isc/arm/include/isc/atomic.h b/contrib/bind9/lib/isc/arm/include/isc/atomic.h new file mode 100644 index 0000000..272edd8 --- /dev/null +++ b/contrib/bind9/lib/isc/arm/include/isc/atomic.h @@ -0,0 +1,59 @@ +/*- + * Copyright (c) 2007 Warner Losh + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef ISC_ATOMIC_H +#define ISC_ATOMIC_H 1 + +#include +#include +#include + +#ifdef __FreeBSD__ +static inline isc_int32_t +isc_atomic_xadd(isc_int32_t *p, isc_int32_t val) +{ + return atomic_fetchadd_int(p, val); +} + +static inline void +isc_atomic_store(isc_int32_t *p, isc_int32_t val) +{ + atomic_store_rel_int(p, val); +} + +static inline isc_int32_t +isc_atomic_cmpxchg(isc_int32_t *p, isc_int32_t cmpval, isc_int32_t val) +{ + return atomic_cmpset_int(p, cmpval, val); +} +#else /* !FreeBSD */ + +#error "unsupported compiler. disable atomic ops by --disable-atomic" + +#endif +#endif /* ISC_ATOMIC_H */ -- cgit v1.1