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/*
* Copyright (c) 2010, 2011 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef OPENVSWITCH_TYPES_H
#define OPENVSWITCH_TYPES_H 1
#include <sys/types.h>
#include <stdint.h>
#ifdef __CHECKER__
#define OVS_BITWISE __attribute__((bitwise))
#define OVS_FORCE __attribute__((force))
#else
#define OVS_BITWISE
#define OVS_FORCE
#endif
/* The ovs_be<N> types indicate that an object is in big-endian, not
* native-endian, byte order. They are otherwise equivalent to uint<N>_t.
*
* The OVS_BITWISE annotation allows the sparse checker to issue warnings
* for incorrect use of values in network byte order. */
typedef uint16_t OVS_BITWISE ovs_be16;
typedef uint32_t OVS_BITWISE ovs_be32;
typedef uint64_t OVS_BITWISE ovs_be64;
/* Netlink and OpenFlow both contain 64-bit values that are only guaranteed to
* be aligned on 32-bit boundaries. These types help.
*
* lib/unaligned.h has helper functions for accessing these. */
/* A 64-bit value, in host byte order, that is only aligned on a 32-bit
* boundary. */
typedef struct {
#ifdef WORDS_BIGENDIAN
uint32_t hi, lo;
#else
uint32_t lo, hi;
#endif
} ovs_32aligned_u64;
/* A 64-bit value, in network byte order, that is only aligned on a 32-bit
* boundary. */
typedef struct {
ovs_be32 hi, lo;
} ovs_32aligned_be64;
#endif /* openvswitch/types.h */
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