| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file or at |
| // https://developers.google.com/open-source/licenses/bsd |
| |
| #ifndef GOOGLE_PROTOBUF_STUBS_PORT_H_ |
| #define GOOGLE_PROTOBUF_STUBS_PORT_H_ |
| |
| #include <assert.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <cstddef> |
| #include <cstdint> |
| #include <string> |
| |
| #include "google/protobuf/stubs/platform_macros.h" |
| |
| // Must be last. |
| #include "google/protobuf/port_def.inc" // NOLINT |
| |
| // These #includes are for the byte swap functions declared later on. |
| #ifdef _MSC_VER |
| #include <stdlib.h> // NOLINT(build/include) |
| #include <intrin.h> |
| #elif defined(__APPLE__) |
| #include <libkern/OSByteOrder.h> |
| #elif defined(__linux__) || defined(__ANDROID__) || defined(__CYGWIN__) |
| #include <byteswap.h> // IWYU pragma: export |
| #endif |
| |
| // Legacy: some users reference these (internal-only) macros even though we |
| // don't need them any more. |
| #if defined(_MSC_VER) && defined(PROTOBUF_USE_DLLS) |
| #ifdef LIBPROTOBUF_EXPORTS |
| #define LIBPROTOBUF_EXPORT __declspec(dllexport) |
| #else |
| #define LIBPROTOBUF_EXPORT __declspec(dllimport) |
| #endif |
| #ifdef LIBPROTOC_EXPORTS |
| #define LIBPROTOC_EXPORT __declspec(dllexport) |
| #else |
| #define LIBPROTOC_EXPORT __declspec(dllimport) |
| #endif |
| #else |
| #define LIBPROTOBUF_EXPORT |
| #define LIBPROTOC_EXPORT |
| #endif |
| |
| #define PROTOBUF_RUNTIME_DEPRECATED(message) [[deprecated]] (message) |
| #define GOOGLE_PROTOBUF_RUNTIME_DEPRECATED(message) [[deprecated]] (message) |
| |
| // =================================================================== |
| // from google3/base/port.h |
| |
| #if (defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L || \ |
| (defined(_MSC_VER) && _MSC_VER >= 1900)) |
| // Define this to 1 if the code is compiled in C++11 mode; leave it |
| // undefined otherwise. Do NOT define it to 0 -- that causes |
| // '#ifdef LANG_CXX11' to behave differently from '#if LANG_CXX11'. |
| #define LANG_CXX11 1 |
| #else |
| #error "Protobuf requires at least C++11." |
| #endif |
| |
| namespace google { |
| namespace protobuf { |
| |
| typedef unsigned int uint; |
| |
| typedef int8_t int8; |
| typedef int16_t int16; |
| typedef int32_t int32; |
| typedef int64_t int64; |
| |
| typedef uint8_t uint8; |
| typedef uint16_t uint16; |
| typedef uint32_t uint32; |
| typedef uint64_t uint64; |
| |
| static const int32 kint32max = 0x7FFFFFFF; |
| static const int32 kint32min = -kint32max - 1; |
| static const int64 kint64max = int64_t{0x7FFFFFFFFFFFFFFF}; |
| static const int64 kint64min = -kint64max - 1; |
| static const uint32 kuint32max = 0xFFFFFFFFu; |
| static const uint64 kuint64max = uint64_t{0xFFFFFFFFFFFFFFFFu}; |
| |
| inline uint16_t GOOGLE_UNALIGNED_LOAD16(const void *p) { |
| uint16_t t; |
| memcpy(&t, p, sizeof t); |
| return t; |
| } |
| |
| inline uint32_t GOOGLE_UNALIGNED_LOAD32(const void *p) { |
| uint32_t t; |
| memcpy(&t, p, sizeof t); |
| return t; |
| } |
| |
| inline uint64_t GOOGLE_UNALIGNED_LOAD64(const void *p) { |
| uint64_t t; |
| memcpy(&t, p, sizeof t); |
| return t; |
| } |
| |
| inline void GOOGLE_UNALIGNED_STORE16(void *p, uint16_t v) { |
| memcpy(p, &v, sizeof v); |
| } |
| |
| inline void GOOGLE_UNALIGNED_STORE32(void *p, uint32_t v) { |
| memcpy(p, &v, sizeof v); |
| } |
| |
| inline void GOOGLE_UNALIGNED_STORE64(void *p, uint64_t v) { |
| memcpy(p, &v, sizeof v); |
| } |
| |
| #if defined(GOOGLE_PROTOBUF_OS_NACL) \ |
| || (defined(__ANDROID__) && defined(__clang__) \ |
| && (__clang_major__ == 3 && __clang_minor__ == 8) \ |
| && (__clang_patchlevel__ < 275480)) |
| # define GOOGLE_PROTOBUF_USE_PORTABLE_LOG2 |
| #endif |
| |
| // The following guarantees declaration of the byte swap functions. |
| #ifdef _MSC_VER |
| #define bswap_16(x) _byteswap_ushort(x) |
| #define bswap_32(x) _byteswap_ulong(x) |
| #define bswap_64(x) _byteswap_uint64(x) |
| |
| #elif defined(__APPLE__) |
| // Mac OS X / Darwin features |
| #define bswap_16(x) OSSwapInt16(x) |
| #define bswap_32(x) OSSwapInt32(x) |
| #define bswap_64(x) OSSwapInt64(x) |
| |
| #elif !defined(__linux__) && !defined(__ANDROID__) && !defined(__CYGWIN__) |
| |
| #ifndef bswap_16 |
| static inline uint16_t bswap_16(uint16_t x) { |
| return static_cast<uint16_t>(((x & 0xFF) << 8) | ((x & 0xFF00) >> 8)); |
| } |
| #define bswap_16(x) bswap_16(x) |
| #endif |
| |
| #ifndef bswap_32 |
| static inline uint32_t bswap_32(uint32_t x) { |
| return (((x & 0xFF) << 24) | |
| ((x & 0xFF00) << 8) | |
| ((x & 0xFF0000) >> 8) | |
| ((x & 0xFF000000) >> 24)); |
| } |
| #define bswap_32(x) bswap_32(x) |
| #endif |
| |
| #ifndef bswap_64 |
| static inline uint64_t bswap_64(uint64_t x) { |
| return (((x & uint64_t{0xFFu}) << 56) | ((x & uint64_t{0xFF00u}) << 40) | |
| ((x & uint64_t{0xFF0000u}) << 24) | |
| ((x & uint64_t{0xFF000000u}) << 8) | |
| ((x & uint64_t{0xFF00000000u}) >> 8) | |
| ((x & uint64_t{0xFF0000000000u}) >> 24) | |
| ((x & uint64_t{0xFF000000000000u}) >> 40) | |
| ((x & uint64_t{0xFF00000000000000u}) >> 56)); |
| } |
| #define bswap_64(x) bswap_64(x) |
| #endif |
| |
| #endif |
| |
| // =================================================================== |
| // from google3/util/endian/endian.h |
| PROTOBUF_EXPORT uint32_t ghtonl(uint32_t x); |
| |
| class BigEndian { |
| public: |
| #ifdef ABSL_IS_LITTLE_ENDIAN |
| |
| static uint16_t FromHost16(uint16_t x) { return bswap_16(x); } |
| static uint16_t ToHost16(uint16_t x) { return bswap_16(x); } |
| |
| static uint32_t FromHost32(uint32_t x) { return bswap_32(x); } |
| static uint32_t ToHost32(uint32_t x) { return bswap_32(x); } |
| |
| static uint64_t FromHost64(uint64_t x) { return bswap_64(x); } |
| static uint64_t ToHost64(uint64_t x) { return bswap_64(x); } |
| |
| static bool IsLittleEndian() { return true; } |
| |
| #else |
| |
| static uint16_t FromHost16(uint16_t x) { return x; } |
| static uint16_t ToHost16(uint16_t x) { return x; } |
| |
| static uint32_t FromHost32(uint32_t x) { return x; } |
| static uint32_t ToHost32(uint32_t x) { return x; } |
| |
| static uint64_t FromHost64(uint64_t x) { return x; } |
| static uint64_t ToHost64(uint64_t x) { return x; } |
| |
| static bool IsLittleEndian() { return false; } |
| |
| #endif /* ENDIAN */ |
| |
| // Functions to do unaligned loads and stores in big-endian order. |
| static uint16_t Load16(const void *p) { |
| return ToHost16(GOOGLE_UNALIGNED_LOAD16(p)); |
| } |
| |
| static void Store16(void *p, uint16_t v) { |
| GOOGLE_UNALIGNED_STORE16(p, FromHost16(v)); |
| } |
| |
| static uint32_t Load32(const void *p) { |
| return ToHost32(GOOGLE_UNALIGNED_LOAD32(p)); |
| } |
| |
| static void Store32(void *p, uint32_t v) { |
| GOOGLE_UNALIGNED_STORE32(p, FromHost32(v)); |
| } |
| |
| static uint64_t Load64(const void *p) { |
| return ToHost64(GOOGLE_UNALIGNED_LOAD64(p)); |
| } |
| |
| static void Store64(void *p, uint64_t v) { |
| GOOGLE_UNALIGNED_STORE64(p, FromHost64(v)); |
| } |
| }; |
| |
| } // namespace protobuf |
| } // namespace google |
| |
| #include "google/protobuf/port_undef.inc" |
| |
| #endif // GOOGLE_PROTOBUF_STUBS_PORT_H_ |