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/*
* Copyright (c) 2022 Cisco and/or its affiliates.
*
* 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.
*/
#pragma once
#include <hicn/transport/errors/errors.h>
namespace transport {
namespace portability {
#if (__BYTE_ORDER__) == (__ORDER_LITTLE_ENDIAN__)
static constexpr const bool kIsBigEndian = false;
static constexpr const bool kIsLittleEndian = true;
#else
static constexpr const bool kIsBigEndian = true;
static constexpr const bool kIsLittleEndian = false;
#endif
template <typename T>
inline T bswap(T value) {
throw errors::RuntimeException("Not implemented");
}
template <>
inline int16_t bswap(int16_t value) {
return __builtin_bswap16(value);
}
template <>
inline int32_t bswap(int32_t value) {
return __builtin_bswap32(value);
}
template <>
inline int64_t bswap(int64_t value) {
return __builtin_bswap64(value);
}
template <>
inline uint16_t bswap(uint16_t value) {
return __builtin_bswap16(value);
}
template <>
inline uint32_t bswap(uint32_t value) {
return __builtin_bswap32(value);
}
template <>
inline uint64_t bswap(uint64_t value) {
return __builtin_bswap64(value);
}
template <typename T>
inline T host_to_net(T value) {
if constexpr (kIsLittleEndian) {
return bswap(value);
}
return value;
}
template <typename T>
inline T net_to_host(T value) {
if constexpr (kIsLittleEndian) {
return bswap(value);
}
return value;
}
} // namespace portability
} // namespace transport
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