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   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *  Copyright (C) 2006-2009 Brian Aker All rights reserved.
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  37
  38 #include <mem_config.h>
  39
  40 #include <sys/types.h>
  41
  42 #include <example/byteorder.h>
  43
  44 /* Byte swap a 64-bit number. */
  45 #ifndef swap64
  46 static inline uint64_t swap64(uint64_t in)
  47 {
  48 #ifndef WORDS_BIGENDIAN
  49   /* Little endian, flip the bytes around until someone makes a faster/better
  50    * way to do this. */
  51   uint64_t rv= 0;
  52   for (uint8_t x= 0; x < 8; x++)
  53   {
  54     rv= (rv << 8) | (in & 0xff);
  55     in >>= 8;
  56   }
  57   return rv;
  58 #else
  59   /* big-endian machines don't need byte swapping */
  60   return in;
  61 #endif // WORDS_BIGENDIAN
  62 }
  63 #endif
  64
  65 #ifdef HAVE_HTONLL
  66
  67 uint64_t example_ntohll(uint64_t value)
  68 {
  69   return ntohll(value);
  70 }
  71
  72 uint64_t example_htonll(uint64_t value)
  73 {
  74   return htonll(value);
  75 }
  76
  77 #else // HAVE_HTONLL
  78
  79 uint64_t example_ntohll(uint64_t value)
  80 {
  81   return swap64(value);
  82 }
  83
  84 uint64_t example_htonll(uint64_t value)
  85 {
  86   return swap64(value);
  87 }
  88
  89 #endif // HAVE_HTONLL