You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
2.6 KiB
56 lines
2.6 KiB
//
|
|
// Copyright (C) 2020 The Android Open Source Project
|
|
//
|
|
// 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 <inttypes.h>
|
|
|
|
#include <android-base/endian.h>
|
|
|
|
// The utilities in android-base/endian.h still require the use of regular int
|
|
// types to store values with any endianness, which requires the user to
|
|
// remember to manually do the required conversions, which is prone to errors.
|
|
// The types introduced here allow handling these values safely.
|
|
|
|
namespace cuttlefish {
|
|
|
|
#define DECLARE_TYPE(new_type, base_type, to_new, to_base) \
|
|
class new_type { \
|
|
public: \
|
|
new_type() = default; \
|
|
explicit new_type(base_type val) : inner_(to_new(val)) {} \
|
|
new_type(const new_type&) = default; \
|
|
new_type& operator=(const new_type& other) = default; \
|
|
volatile new_type& operator=(const new_type& other) volatile { \
|
|
inner_ = other.inner_; \
|
|
return *this; \
|
|
} \
|
|
base_type as_##base_type() const volatile { return to_base(inner_); } \
|
|
\
|
|
private: \
|
|
base_type inner_; \
|
|
}; \
|
|
static_assert(sizeof(new_type) == sizeof(base_type))
|
|
|
|
DECLARE_TYPE(Le16, uint16_t, htole16, le16toh);
|
|
DECLARE_TYPE(Le32, uint32_t, htole32, le32toh);
|
|
DECLARE_TYPE(Le64, uint64_t, htole64, le64toh);
|
|
DECLARE_TYPE(Be16, uint16_t, htobe16, be16toh);
|
|
DECLARE_TYPE(Be32, uint32_t, htobe32, be32toh);
|
|
DECLARE_TYPE(Be64, uint64_t, htobe64, be64toh);
|
|
|
|
#undef DECLARE_TYPE
|
|
|
|
} // namespace cuttlefish
|