jcs.org
Serenity Operating System
AK: Use endianness flags to determine if conversion is necessary
authored by
Liav A
and committed by
Andreas Kling
01ae3e9c
940de40f
+24
-20
+1
-13
AK/NetworkOrdered.h
+1
-13
AK/NetworkOrdered.h
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#pragma once
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#include <AK/Platform.h>
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#include <AK/Types.h>
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template<typename T>
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[[gnu::always_inline]] inline T convert_between_host_and_network(T value)
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{
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if constexpr (sizeof(T) == 8)
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return __builtin_bswap64(value);
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if constexpr (sizeof(T) == 4)
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return __builtin_bswap32(value);
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if constexpr (sizeof(T) == 2)
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return __builtin_bswap16(value);
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if constexpr (sizeof(T) == 1)
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return value;
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}
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template<typename T>
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class [[gnu::packed]] NetworkOrdered
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AK/Platform.h
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AK/Platform.h
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#pragma once
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#ifdef __i386__
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#define AK_ARCH_I386 1
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# define AK_ARCH_I386 1
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#endif
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#ifdef __x86_64__
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#define AK_ARCH_X86_64 1
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# define AK_ARCH_X86_64 1
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#endif
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#define ARCH(arch) (defined(AK_ARCH_##arch) && AK_ARCH_##arch)
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#endif
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#ifndef __serenity__
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#define PAGE_SIZE sysconf(_SC_PAGESIZE)
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# define PAGE_SIZE sysconf(_SC_PAGESIZE)
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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# include <errno.h>
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# include <fcntl.h>
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# include <stdlib.h>
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# include <string.h>
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inline int open_with_path_length(const char* path, size_t path_length, int options, mode_t mode)
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{
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auto* tmp = (char*)malloc(path_length + 1);
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}
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#endif
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template<typename T>
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[[gnu::always_inline]] inline T convert_between_host_and_network(T value)
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{
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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if constexpr (sizeof(T) == 8)
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return __builtin_bswap64(value);
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if constexpr (sizeof(T) == 4)
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return __builtin_bswap32(value);
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if constexpr (sizeof(T) == 2)
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return __builtin_bswap16(value);
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if constexpr (sizeof(T) == 1)
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return value;
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#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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return value;
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#endif
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}