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33 lines
692 B
C
33 lines
692 B
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the GPL.
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*
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*/
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#ifndef _LVM_XLATE_H
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#define _LVM_XLATE_H
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/* FIXME: finish these as inlines */
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uint16_t shuffle16(uint16_t n);
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uint32_t shuffle32(uint32_t n);
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uint64_t shuffle64(uint64_t n);
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/* xlate functions move data between core and disk */
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#if __BYTE_ORDER == __BIG_ENDIAN
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# define xlate16(x) shuffle16(x)
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# define xlate32(x) shuffle32(x)
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# define xlate64(x) shuffle64(x)
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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# define xlate16(x) (x)
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# define xlate32(x) (x)
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# define xlate64(x) (x)
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#else
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# error "__BYTE_ORDER must be defined as __LITTLE_ENDIAN or __BIG_ENDIAN"
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#endif
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#endif
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