/* * Copyright 2004 The WebRTC Project Authors. All rights reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #ifndef RTC_BASE_BYTE_ORDER_H_ #define RTC_BASE_BYTE_ORDER_H_ #include <stdint.h> #include <cstring> #if defined(WEBRTC_POSIX) && !defined(__native_client__) #include <arpa/inet.h> #endif #include "rtc_base/system/arch.h" #if defined(WEBRTC_MAC) #include <libkern/OSByteOrder.h> #define htobe16 … #define htobe32 … #define htobe64 … #define be16toh … #define be32toh … #define be64toh … #define htole16 … #define htole32 … #define htole64 … #define le16toh … #define le32toh … #define le64toh … #elif defined(WEBRTC_WIN) || defined(__native_client__) #if defined(WEBRTC_WIN) #include <stdlib.h> #include <winsock2.h> #else #include <netinet/in.h> #endif // defined(WEBRTC_WIN) #if defined(WEBRTC_ARCH_LITTLE_ENDIAN) #define htobe16 … #define htobe32 … #define be16toh … #define be32toh … #define htole16 … #define htole32 … #define htole64 … #define le16toh … #define le32toh … #define le64toh … #if defined(WEBRTC_WIN) #define htobe64 … #define be64toh … #endif // defined(WEBRTC_WIN) #if defined(__native_client__) #define htobe64 … #define be64toh … #endif // defined(__native_client__) #elif defined(WEBRTC_ARCH_BIG_ENDIAN) #define htobe16 … #define htobe32 … #define be16toh … #define be32toh … #define htole16 … #define htole32 … #define htole64 … #define le16toh … #define le32toh … #define le64toh … #if defined(WEBRTC_WIN) #define htobe64 … #define be64toh … #endif // defined(WEBRTC_WIN) #if defined(__native_client__) #define htobe64 … #define be64toh … #endif // defined(__native_client__) #else #error WEBRTC_ARCH_BIG_ENDIAN or WEBRTC_ARCH_LITTLE_ENDIAN must be defined. #endif // defined(WEBRTC_ARCH_LITTLE_ENDIAN) #elif defined(WEBRTC_POSIX) #include <endian.h> #else #error "Missing byte order functions for this arch." #endif // defined(WEBRTC_MAC) namespace rtc { // Reading and writing of little and big-endian numbers from memory inline void Set8(void* memory, size_t offset, uint8_t v) { … } inline uint8_t Get8(const void* memory, size_t offset) { … } inline void SetBE16(void* memory, uint16_t v) { … } inline void SetBE32(void* memory, uint32_t v) { … } inline void SetBE64(void* memory, uint64_t v) { … } inline uint16_t GetBE16(const void* memory) { … } inline uint32_t GetBE32(const void* memory) { … } inline uint64_t GetBE64(const void* memory) { … } inline void SetLE16(void* memory, uint16_t v) { … } inline void SetLE32(void* memory, uint32_t v) { … } inline void SetLE64(void* memory, uint64_t v) { … } inline uint16_t GetLE16(const void* memory) { … } inline uint32_t GetLE32(const void* memory) { … } inline uint64_t GetLE64(const void* memory) { … } // Check if the current host is big endian. inline bool IsHostBigEndian() { … } inline uint16_t HostToNetwork16(uint16_t n) { … } inline uint32_t HostToNetwork32(uint32_t n) { … } inline uint64_t HostToNetwork64(uint64_t n) { … } inline uint16_t NetworkToHost16(uint16_t n) { … } inline uint32_t NetworkToHost32(uint32_t n) { … } inline uint64_t NetworkToHost64(uint64_t n) { … } } // namespace rtc #endif // RTC_BASE_BYTE_ORDER_H_
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