David L. Jones
3 years ago
commit
119f7d7dab
72 changed files with 890 additions and 232 deletions
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// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef GOOGLE_PROTOBUF_ENDIAN_H__ |
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#define GOOGLE_PROTOBUF_ENDIAN_H__ |
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#if defined(_MSC_VER) |
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#include <stdlib.h> |
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#endif |
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#include <cstdint> |
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// Must be included last.
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#include <google/protobuf/port_def.inc> |
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namespace google { |
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namespace protobuf { |
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namespace internal { |
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inline uint64_t BSwap64(uint64_t host_int) { |
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#if defined(PROTOBUF_BUILTIN_BSWAP64) |
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return PROTOBUF_BUILTIN_BSWAP64(host_int); |
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#elif defined(_MSC_VER) |
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return _byteswap_uint64(host_int); |
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#else |
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return (((host_int & uint64_t{0xFF}) << 56) | |
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((host_int & uint64_t{0xFF00}) << 40) | |
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((host_int & uint64_t{0xFF0000}) << 24) | |
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((host_int & uint64_t{0xFF000000}) << 8) | |
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((host_int & uint64_t{0xFF00000000}) >> 8) | |
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((host_int & uint64_t{0xFF0000000000}) >> 24) | |
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((host_int & uint64_t{0xFF000000000000}) >> 40) | |
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((host_int & uint64_t{0xFF00000000000000}) >> 56)); |
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#endif |
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} |
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inline uint32_t BSwap32(uint32_t host_int) { |
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#if defined(PROTOBUF_BUILTIN_BSWAP32) |
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return PROTOBUF_BUILTIN_BSWAP32(host_int); |
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#elif defined(_MSC_VER) |
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return _byteswap_ulong(host_int); |
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#else |
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return (((host_int & uint32_t{0xFF}) << 24) | |
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((host_int & uint32_t{0xFF00}) << 8) | |
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((host_int & uint32_t{0xFF0000}) >> 8) | |
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((host_int & uint32_t{0xFF000000}) >> 24)); |
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#endif |
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} |
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inline uint16_t BSwap16(uint16_t host_int) { |
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#if defined(PROTOBUF_BUILTIN_BSWAP16) |
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return PROTOBUF_BUILTIN_BSWAP16(host_int); |
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#elif defined(_MSC_VER) |
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return _byteswap_ushort(host_int); |
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#else |
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return (((host_int & uint16_t{0xFF}) << 8) | |
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((host_int & uint16_t{0xFF00}) >> 8)); |
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#endif |
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} |
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namespace little_endian { |
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inline uint16_t FromHost(uint16_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return BSwap16(value); |
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#else |
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return value; |
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#endif |
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} |
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inline uint32_t FromHost(uint32_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return BSwap32(value); |
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#else |
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return value; |
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#endif |
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} |
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inline uint64_t FromHost(uint64_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return BSwap64(value); |
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#else |
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return value; |
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#endif |
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} |
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inline uint16_t ToHost(uint16_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return BSwap16(value); |
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#else |
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return value; |
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#endif |
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} |
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inline uint32_t ToHost(uint32_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return BSwap32(value); |
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#else |
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return value; |
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#endif |
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} |
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inline uint64_t ToHost(uint64_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return BSwap64(value); |
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#else |
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return value; |
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#endif |
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} |
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} // namespace little_endian
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namespace big_endian { |
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inline uint16_t FromHost(uint16_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return value; |
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#else |
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return BSwap16(value); |
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#endif |
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} |
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inline uint32_t FromHost(uint32_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return value; |
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#else |
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return BSwap32(value); |
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#endif |
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} |
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inline uint64_t FromHost(uint64_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return value; |
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#else |
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return BSwap64(value); |
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#endif |
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} |
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inline uint16_t ToHost(uint16_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return value; |
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#else |
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return BSwap16(value); |
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#endif |
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} |
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inline uint32_t ToHost(uint32_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return value; |
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#else |
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return BSwap32(value); |
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#endif |
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} |
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inline uint64_t ToHost(uint64_t value) { |
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#if defined(PROTOBUF_BIG_ENDIAN) |
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return value; |
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#else |
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return BSwap64(value); |
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#endif |
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} |
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} // namespace big_endian
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} // namespace internal
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} // namespace protobuf
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} // namespace google
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#include <google/protobuf/port_undef.inc> |
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#endif // GOOGLE_PROTOBUF_ENDIAN_H__
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