mirror of
https://github.com/openvswitch/ovs
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e0edde6fee
Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc. Feature #10593 Signed-off-by: Raju Subramanian <rsubramanian@nicira.com> Signed-off-by: Ben Pfaff <blp@nicira.com>
72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/*
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* Copyright (c) 2008, 2010, 2011 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef BYTE_ORDER_H
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#define BYTE_ORDER_H 1
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#include <arpa/inet.h>
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#include <sys/types.h>
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#include <inttypes.h>
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#include "openvswitch/types.h"
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#ifndef __CHECKER__
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static inline ovs_be64
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htonll(uint64_t n)
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{
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return htonl(1) == 1 ? n : ((uint64_t) htonl(n) << 32) | htonl(n >> 32);
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}
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static inline uint64_t
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ntohll(ovs_be64 n)
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{
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return htonl(1) == 1 ? n : ((uint64_t) ntohl(n) << 32) | ntohl(n >> 32);
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}
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#else
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/* Making sparse happy with these functions also makes them unreadable, so
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* don't bother to show it their implementations. */
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ovs_be64 htonll(uint64_t);
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uint64_t ntohll(ovs_be64);
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#endif
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/* These macros may substitute for htons(), htonl(), and htonll() in contexts
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* where function calls are not allowed, such as case labels. They should not
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* be used elsewhere because all of them evaluate their argument many times. */
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#if defined(WORDS_BIGENDIAN) || __CHECKER__
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#define CONSTANT_HTONS(VALUE) ((OVS_FORCE ovs_be16) ((VALUE) & 0xffff))
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#define CONSTANT_HTONL(VALUE) ((OVS_FORCE ovs_be32) ((VALUE) & 0xffffffff))
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#define CONSTANT_HTONLL(VALUE) \
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((OVS_FORCE ovs_be64) ((VALUE) & UINT64_C(0xffffffffffffffff)))
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#else
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#define CONSTANT_HTONS(VALUE) \
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(((((ovs_be16) (VALUE)) & 0xff00) >> 8) | \
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((((ovs_be16) (VALUE)) & 0x00ff) << 8))
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#define CONSTANT_HTONL(VALUE) \
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(((((ovs_be32) (VALUE)) & 0x000000ff) << 24) | \
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((((ovs_be32) (VALUE)) & 0x0000ff00) << 8) | \
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((((ovs_be32) (VALUE)) & 0x00ff0000) >> 8) | \
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((((ovs_be32) (VALUE)) & 0xff000000) >> 24))
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#define CONSTANT_HTONLL(VALUE) \
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(((((ovs_be64) (VALUE)) & UINT64_C(0x00000000000000ff)) << 56) | \
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((((ovs_be64) (VALUE)) & UINT64_C(0x000000000000ff00)) << 40) | \
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((((ovs_be64) (VALUE)) & UINT64_C(0x0000000000ff0000)) << 24) | \
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((((ovs_be64) (VALUE)) & UINT64_C(0x00000000ff000000)) << 8) | \
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((((ovs_be64) (VALUE)) & UINT64_C(0x000000ff00000000)) >> 8) | \
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((((ovs_be64) (VALUE)) & UINT64_C(0x0000ff0000000000)) >> 24) | \
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((((ovs_be64) (VALUE)) & UINT64_C(0x00ff000000000000)) >> 40) | \
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((((ovs_be64) (VALUE)) & UINT64_C(0xff00000000000000)) >> 56))
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#endif
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#endif /* byte-order.h */
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