| Index: third_party/libjingle/overrides/talk/base/byteorder.h
|
| ===================================================================
|
| --- third_party/libjingle/overrides/talk/base/byteorder.h (revision 0)
|
| +++ third_party/libjingle/overrides/talk/base/byteorder.h (revision 0)
|
| @@ -0,0 +1,172 @@
|
| +/*
|
| + * libjingle
|
| + * Copyright 2004--2005, Google Inc.
|
| + *
|
| + * Redistribution and use in source and binary forms, with or without
|
| + * modification, are permitted provided that the following conditions are met:
|
| + *
|
| + * 1. Redistributions of source code must retain the above copyright notice,
|
| + * this list of conditions and the following disclaimer.
|
| + * 2. Redistributions in binary form must reproduce the above copyright notice,
|
| + * this list of conditions and the following disclaimer in the documentation
|
| + * and/or other materials provided with the distribution.
|
| + * 3. The name of the author may not be used to endorse or promote products
|
| + * derived from this software without specific prior written permission.
|
| + *
|
| + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
| + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
| + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
|
| + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
| + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
| + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
| + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
| + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
| + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| + */
|
| +
|
| +#ifndef TALK_BASE_BYTEORDER_H__
|
| +#define TALK_BASE_BYTEORDER_H__
|
| +
|
| +#ifdef POSIX
|
| +#include <arpa/inet.h>
|
| +#endif
|
| +
|
| +#ifdef WIN32
|
| +#include "talk/base/win32.h"
|
| +#endif
|
| +
|
| +#include "talk/base/basictypes.h"
|
| +
|
| +namespace talk_base {
|
| +
|
| +// Reading and writing of little and big-endian numbers from memory
|
| +// TODO: Add HostEndian #defines (HE)
|
| +// TODO: Consider NetworkEndian as synonym for BigEndian, for clarity in use.
|
| +// TODO: Consider creating optimized versions, such as direct read/writes of
|
| +// integers in host-endian format, when the platform supports it.
|
| +
|
| +inline void Set8(void* memory, size_t offset, uint8 v) {
|
| + static_cast<uint8*>(memory)[offset] = v;
|
| +}
|
| +inline uint8 Get8(const void* memory, size_t offset) {
|
| + return static_cast<const uint8*>(memory)[offset];
|
| +}
|
| +
|
| +inline void SetBE16(void* memory, uint16 v) {
|
| + Set8(memory, 0, static_cast<uint8>(v >> 8));
|
| + Set8(memory, 1, static_cast<uint8>(v >> 0));
|
| +}
|
| +inline void SetBE32(void* memory, uint32 v) {
|
| + Set8(memory, 0, static_cast<uint8>(v >> 24));
|
| + Set8(memory, 1, static_cast<uint8>(v >> 16));
|
| + Set8(memory, 2, static_cast<uint8>(v >> 8));
|
| + Set8(memory, 3, static_cast<uint8>(v >> 0));
|
| +}
|
| +inline void SetBE64(void* memory, uint64 v) {
|
| + Set8(memory, 0, static_cast<uint8>(v >> 56));
|
| + Set8(memory, 1, static_cast<uint8>(v >> 48));
|
| + Set8(memory, 2, static_cast<uint8>(v >> 40));
|
| + Set8(memory, 3, static_cast<uint8>(v >> 32));
|
| + Set8(memory, 4, static_cast<uint8>(v >> 24));
|
| + Set8(memory, 5, static_cast<uint8>(v >> 16));
|
| + Set8(memory, 6, static_cast<uint8>(v >> 8));
|
| + Set8(memory, 7, static_cast<uint8>(v >> 0));
|
| +}
|
| +inline uint16 GetBE16(const void* memory) {
|
| + return (static_cast<uint16>(Get8(memory, 0)) << 8)
|
| + | (static_cast<uint16>(Get8(memory, 1)) << 0);
|
| +}
|
| +inline uint32 GetBE32(const void* memory) {
|
| + return (static_cast<uint32>(Get8(memory, 0)) << 24)
|
| + | (static_cast<uint32>(Get8(memory, 1)) << 16)
|
| + | (static_cast<uint32>(Get8(memory, 2)) << 8)
|
| + | (static_cast<uint32>(Get8(memory, 3)) << 0);
|
| +}
|
| +inline uint64 GetBE64(const void* memory) {
|
| + return (static_cast<uint64>(Get8(memory, 0)) << 56)
|
| + | (static_cast<uint64>(Get8(memory, 1)) << 48)
|
| + | (static_cast<uint64>(Get8(memory, 2)) << 40)
|
| + | (static_cast<uint64>(Get8(memory, 3)) << 32)
|
| + | (static_cast<uint64>(Get8(memory, 4)) << 24)
|
| + | (static_cast<uint64>(Get8(memory, 5)) << 16)
|
| + | (static_cast<uint64>(Get8(memory, 6)) << 8)
|
| + | (static_cast<uint64>(Get8(memory, 7)) << 0);
|
| +}
|
| +
|
| +inline void SetLE16(void* memory, uint16 v) {
|
| + Set8(memory, 1, static_cast<uint8>(v >> 8));
|
| + Set8(memory, 0, static_cast<uint8>(v >> 0));
|
| +}
|
| +inline void SetLE32(void* memory, uint32 v) {
|
| + Set8(memory, 3, static_cast<uint8>(v >> 24));
|
| + Set8(memory, 2, static_cast<uint8>(v >> 16));
|
| + Set8(memory, 1, static_cast<uint8>(v >> 8));
|
| + Set8(memory, 0, static_cast<uint8>(v >> 0));
|
| +}
|
| +inline void SetLE64(void* memory, uint64 v) {
|
| + Set8(memory, 7, static_cast<uint8>(v >> 56));
|
| + Set8(memory, 6, static_cast<uint8>(v >> 48));
|
| + Set8(memory, 5, static_cast<uint8>(v >> 40));
|
| + Set8(memory, 4, static_cast<uint8>(v >> 32));
|
| + Set8(memory, 3, static_cast<uint8>(v >> 24));
|
| + Set8(memory, 2, static_cast<uint8>(v >> 16));
|
| + Set8(memory, 1, static_cast<uint8>(v >> 8));
|
| + Set8(memory, 0, static_cast<uint8>(v >> 0));
|
| +}
|
| +inline uint16 GetLE16(const void* memory) {
|
| + return (static_cast<uint16>(Get8(memory, 1)) << 8)
|
| + | (static_cast<uint16>(Get8(memory, 0)) << 0);
|
| +}
|
| +inline uint32 GetLE32(const void* memory) {
|
| + return (static_cast<uint32>(Get8(memory, 3)) << 24)
|
| + | (static_cast<uint32>(Get8(memory, 2)) << 16)
|
| + | (static_cast<uint32>(Get8(memory, 1)) << 8)
|
| + | (static_cast<uint32>(Get8(memory, 0)) << 0);
|
| +}
|
| +inline uint64 GetLE64(const void* memory) {
|
| + return (static_cast<uint64>(Get8(memory, 7)) << 56)
|
| + | (static_cast<uint64>(Get8(memory, 6)) << 48)
|
| + | (static_cast<uint64>(Get8(memory, 5)) << 40)
|
| + | (static_cast<uint64>(Get8(memory, 4)) << 32)
|
| + | (static_cast<uint64>(Get8(memory, 3)) << 24)
|
| + | (static_cast<uint64>(Get8(memory, 2)) << 16)
|
| + | (static_cast<uint64>(Get8(memory, 1)) << 8)
|
| + | (static_cast<uint64>(Get8(memory, 0)) << 0);
|
| +}
|
| +
|
| +// Check if the current host is big endian.
|
| +inline bool IsHostBigEndian() {
|
| + static const int number = 1;
|
| + return (0 == *reinterpret_cast<const char*>(&number));
|
| +}
|
| +
|
| +inline uint16 HostToNetwork16(uint16 n) {
|
| + return htons(n);
|
| +}
|
| +
|
| +inline uint32 HostToNetwork32(uint32 n) {
|
| + return htonl(n);
|
| +}
|
| +
|
| +inline uint64 HostToNetwork64(uint64 n) {
|
| + // If the host is little endian, GetBE64 converts n to big network endian.
|
| + return IsHostBigEndian() ? n : GetBE64(&n);
|
| +}
|
| +
|
| +inline uint16 NetworkToHost16(uint16 n) {
|
| + return ntohs(n);
|
| +}
|
| +
|
| +inline uint32 NetworkToHost32(uint32 n) {
|
| + return ntohl(n);
|
| +}
|
| +
|
| +inline uint64 NetworkToHost64(uint64 n) {
|
| + // If the host is little endian, GetBE64 converts n to little endian.
|
| + return IsHostBigEndian() ? n : GetBE64(&n);
|
| +}
|
| +
|
| +} // namespace talk_base
|
| +
|
| +#endif // TALK_BASE_BYTEORDER_H__
|
|
|
| Property changes on: third_party\libjingle\overrides\talk\base\byteorder.h
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
|
|
|
|