src/kademlia/utils/LittleEndian.cpp

   1 //
   2 // This file is part of the aMule Project.
   3 //
   4 // Copyright (c) 2004-2008 Angel Vidal (Kry) ( kry@amule.org )
   5 // Copyright (c) 2004-2008 aMule Team ( admin@amule.org / http://www.amule.org )
   6 // Copyright (c) 2003 Barry Dunne (http://www.emule-project.net)
   7 //
   8 // Any parts of this program derived from the xMule, lMule or eMule project,
   9 // or contributed by third-party developers are copyrighted by their
  10 // respective authors.
  11 //
  12 // This program is free software; you can redistribute it and/or modify
  13 // it under the terms of the GNU General Public License as published by
  14 // the Free Software Foundation; either version 2 of the License, or
  15 // (at your option) any later version.
  16 //
  17 // This program is distributed in the hope that it will be useful,
  18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 // GNU General Public License for more details.
  21 //
  22 // You should have received a copy of the GNU General Public License
  23 // along with this program; if not, write to the Free Software
  24 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
  25 //
  26
  27 // Note To Mods //
  28 /*
  29 Please do not change anything here and release it..
  30 There is going to be a new forum created just for the Kademlia side of the client..
  31 If you feel there is an error or a way to improve something, please
  32 post it in the forum first and let us look at it.. If it is a real improvement,
  33 it will be added to the offical client.. Changing something without knowing
  34 what all it does can cause great harm to the network if released in mass form..
  35 Any mod that changes anything within the Kademlia side will not be allowed to advertise
  36 there client on the eMule forum..
  37 */
  38
  39 #include "LittleEndian.h"
  40
  41 #ifdef _DEBUG
  42 #define new DEBUG_NEW
  43 #undef THIS_FILE
  44 static char THIS_FILE[] = __FILE__;
  45 #endif
  46
  47
  48 ////////////////////////////////////////
  49 namespace Kademlia {
  50 ////////////////////////////////////////
  51
  52 //NOTE: avoid those function whenever possible -> terribly slow
  53 uint16 Le(uint16 val)
  54 {
  55         uint32 b0 = (val      ) & 0xFF;
  56         uint32 b1 = (val >>  8) & 0xFF;
  57         return (uint16) ((b0 << 8) | b1);
  58 }
  59
  60 //NOTE: avoid those function whenever possible -> terribly slow
  61 uint32 Le(uint32 val)
  62 {
  63         uint32 b0 = (val      ) & 0xFF;
  64         uint32 b1 = (val >>  8) & 0xFF;
  65         uint32 b2 = (val >> 16) & 0xFF;
  66         uint32 b3 = (val >> 24) & 0xFF;
  67         return (b0 << 24) | (b1 << 16) | (b2 << 8) | b3;
  68 }
  69
  70 //NOTE: avoid those function whenever possible -> terribly slow
  71 uint64 Le(uint64 val)
  72 {
  73         uint32 b0 = (uint32)((val      ) & 0xFF);
  74         uint32 b1 = (uint32)((val >>  8) & 0xFF);
  75         uint32 b2 = (uint32)((val >> 16) & 0xFF);
  76         uint32 b3 = (uint32)((val >> 24) & 0xFF);
  77         uint32 b4 = (uint32)((val >> 32) & 0xFF);
  78         uint32 b5 = (uint32)((val >> 40) & 0xFF);
  79         uint32 b6 = (uint32)((val >> 48) & 0xFF);
  80         uint32 b7 = (uint32)((val >> 56) & 0xFF);
  81         return ((uint64)b0 << 56) | ((uint64)b1 << 48) | ((uint64)b2 << 40) | ((uint64)b3 << 32) |
  82                    ((uint64)b4 << 24) | ((uint64)b5 << 16) | ((uint64)b6 << 8) | (uint64)b7;
  83 }
  84
  85 } // End namespace
  86 // File_checked_for_headers