git.m6w6.name Git - m6w6/libmemcached/blob - libmemcached/byteorder.c

   1 /* LibMemcached
   2  * Copyright (C) 2006-2009 Brian Aker
   3  * All rights reserved.
   4  *
   5  * Use and distribution licensed under the BSD license.  See
   6  * the COPYING file in the parent directory for full text.
   7  *
   8  * Summary:
   9  *
  10  */
  11
  12 #include "byteorder.h"
  13
  14 /* Byte swap a 64-bit number. */
  15 #ifndef swap64
  16 static inline uint64_t swap64(uint64_t in)
  17 {
  18 #ifndef WORDS_BIGENDIAN
  19   /* Little endian, flip the bytes around until someone makes a faster/better
  20    * way to do this. */
  21   uint64_t rv= 0;
  22   for (uint8_t x= 0; x < 8; x++)
  23   {
  24     rv= (rv << 8) | (in & 0xff);
  25     in >>= 8;
  26   }
  27   return rv;
  28 #else
  29   /* big-endian machines don't need byte swapping */
  30   return in;
  31 #endif // WORDS_BIGENDIAN
  32 }
  33 #endif
  34
  35 uint64_t ntohll(uint64_t value)
  36 {
  37   return swap64(value);
  38 }
  39
  40 uint64_t htonll(uint64_t value)
  41 {
  42   return swap64(value);
  43 }