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author | Jens Axboe <jens.axboe@oracle.com> | 2008-05-30 22:17:45 +0200 |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2008-05-30 22:17:45 +0200 |
commit | 00fb3c8dcbb940338fea9f6cab689b4924266305 (patch) | |
tree | c59ec3ae954da20483558853f986ebbb15da99b7 /lib/bswap.h | |
parent | 465221b0121f5cf70585d7338c6448ac4b251257 (diff) | |
download | fio-00fb3c8dcbb940338fea9f6cab689b4924266305.tar.gz fio-00fb3c8dcbb940338fea9f6cab689b4924266305.tar.bz2 |
Move the lib/ stuff around a bit
And actually remember to commit the lib/ files...
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'lib/bswap.h')
-rw-r--r-- | lib/bswap.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/bswap.h b/lib/bswap.h new file mode 100644 index 00000000..30fcac54 --- /dev/null +++ b/lib/bswap.h @@ -0,0 +1,46 @@ +#ifndef FIO_BSWAP_H +#define FIO_BSWAP_H + +#include <inttypes.h> + +#if __BYTE_ORDER == __LITTLE_ENDIAN +static inline uint32_t __be32_to_cpu(uint32_t val) +{ + uint32_t c1, c2, c3, c4; + + c1 = (val >> 24) & 0xff; + c2 = (val >> 16) & 0xff; + c3 = (val >> 8) & 0xff; + c4 = val & 0xff; + + return c1 | c2 << 8 | c3 << 16 | c4 << 24; +} + +static inline uint64_t __be64_to_cpu(uint64_t val) +{ + uint64_t c1, c2, c3, c4, c5, c6, c7, c8; + + c1 = (val >> 56) & 0xff; + c2 = (val >> 48) & 0xff; + c3 = (val >> 40) & 0xff; + c4 = (val >> 32) & 0xff; + c5 = (val >> 24) & 0xff; + c6 = (val >> 16) & 0xff; + c7 = (val >> 8) & 0xff; + c8 = val & 0xff; + + return c1 | c2 << 8 | c3 << 16 | c4 << 24 | c5 << 32 | c6 << 40 | c7 << 48 | c8 << 56; +} +#else +static inline uint64_t __be64_to_cpu(uint64_t val) +{ + return val; +} + +static inline uint32_t __be32_to_cpu(uint32_t val) +{ + return val; +} +#endif + +#endif |