RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 11:37:44 +00:00
Code Issues Activity Actions

AK: Use endianness flags to determine if conversion is necessary

Browse source
This commit is contained in:
Liav A 2020-02-19 16:58:54 +02:00 • committed by Andreas Kling
parent 940de40f28
commit 01ae3e9c85
2 changed files with 24 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

14
AK/NetworkOrdered.h
View file

@ -26,21 +26,9 @@
#pragma once
#include <AK/Platform.h>
#include <AK/Types.h>
template<typename T>
[[gnu::always_inline]] inline T convert_between_host_and_network(T value)
{
if constexpr (sizeof(T) == 8)
return __builtin_bswap64(value);
if constexpr (sizeof(T) == 4)
return __builtin_bswap32(value);
if constexpr (sizeof(T) == 2)
return __builtin_bswap16(value);
if constexpr (sizeof(T) == 1)
return value;
}
template<typename T>
class [[gnu::packed]] NetworkOrdered
{

16
AK/Platform.h
View file

@ -68,3 +68,19 @@ inline int open_with_path_length(const char* path, size_t path_length, int optio
}
#endif
template<typename T>
[[gnu::always_inline]] inline T convert_between_host_and_network(T value)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
if constexpr (sizeof(T) == 8)
return __builtin_bswap64(value);
if constexpr (sizeof(T) == 4)
return __builtin_bswap32(value);
if constexpr (sizeof(T) == 2)
return __builtin_bswap16(value);
if constexpr (sizeof(T) == 1)
return value;
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
return value;
#endif
}