src/ArchSpecific.h

   1 //
   2 // This file is part of the aMule Project.
   3 //
   4 // Copyright (c) 2003-2008 aMule Team ( admin@amule.org / http://www.amule.org )
   5 // Copyright (c) 2002 Merkur ( devs@emule-project.net / http://www.emule-project.net )
   6 //
   7 // Any parts of this program derived from the xMule, lMule or eMule project,
   8 // or contributed by third-party developers are copyrighted by their
   9 // respective authors.
  10 //
  11 // This program is free software; you can redistribute it and/or modify
  12 // it under the terms of the GNU General Public License as published by
  13 // the Free Software Foundation; either version 2 of the License, or
  14 // (at your option) any later version.
  15 //
  16 // This program is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 // GNU General Public License for more details.
  20 //
  21 // You should have received a copy of the GNU General Public License
  22 // along with this program; if not, write to the Free Software
  23 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
  24 //
  25
  26 #ifndef ARCHSPECIFIC_H
  27 #define ARCHSPECIFIC_H
  28
  29 #include "Types.h"
  30
  31 #define ENDIAN_SWAP_16(x) (wxUINT16_SWAP_ON_BE(x))
  32 #define ENDIAN_SWAP_I_16(x) x = wxUINT16_SWAP_ON_BE(x)
  33 #define ENDIAN_SWAP_32(x) (wxUINT32_SWAP_ON_BE(x))
  34 #define ENDIAN_SWAP_I_32(x) x = wxUINT32_SWAP_ON_BE(x)
  35
  36 #if ((defined __GNUC__) && __GNUC__ >= 2) || defined (_MSC_VER)
  37         #define ENDIAN_SWAP_64(x) (wxUINT64_SWAP_ON_BE(x))
  38         #define ENDIAN_SWAP_I_64(x) x = wxUINT64_SWAP_ON_BE(x)
  39 #endif
  40
  41 // ntohs
  42 #define ENDIAN_NTOHS(x) ( wxUINT16_SWAP_ON_LE(x) )
  43 // ntohl
  44 #define ENDIAN_NTOHL(x) ( wxUINT32_SWAP_ON_LE(x) )
  45 // new
  46 #define ENDIAN_NTOHLL(x) ( wxUINT64_SWAP_ON_LE(x) )
  47 // htons
  48 #define ENDIAN_HTONS(x) ( wxUINT16_SWAP_ON_LE(x) )
  49 // htonl
  50 #define ENDIAN_HTONL(x) ( wxUINT32_SWAP_ON_LE(x) )
  51 // new
  52 #define ENDIAN_HTONLL(x) ( wxUINT64_SWAP_ON_LE(x) )
  53
  54
  55 /**
  56  * Returns the value in the given bytestream.
  57  *
  58  * The value is returned exactly as it is found.
  59  */
  60 // \{
  61 inline uint16 RawPeekUInt16(const void* p);
  62 inline uint32 RawPeekUInt32(const void* p);
  63 inline uint64 RawPeekUInt64(const void* p);
  64 // \}
  65
  66
  67
  68 /**
  69  * Writes the specified value into the bytestream.
  70  *
  71  * The value is written exactly as it is.
  72  */
  73 // \{
  74 inline void RawPokeUInt16(void* p, uint16 nVal);
  75 inline void RawPokeUInt32(void* p, uint32 nVal);
  76 inline void RawPokeUInt64(void* p, uint64 nVal);
  77 // \}
  78
  79
  80 /**
  81  * Returns the value in the given bytestream.
  82  *
  83  * The value is returned as little-endian.
  84  */
  85 // \{
  86 inline uint8 PeekUInt8(const void* p);
  87 inline uint16 PeekUInt16(const void* p);
  88 inline uint32 PeekUInt32(const void* p);
  89 inline uint64 PeekUInt64(const void* p);
  90 // \}
  91
  92
  93 /**
  94  * Writes the specified value into the bytestream.
  95  *
  96  * The value is written as little-endian.
  97  */
  98 // \{
  99 inline void PokeUInt8(void* p, uint8 nVal);
 100 inline void PokeUInt16(void* p, uint16 nVal);
 101 inline void PokeUInt32(void* p, uint32 nVal);
 102 inline void PokeUInt64(void* p, uint64 nVal);
 103 // \}
 104
 105
 106 #if defined(__arm__) || defined(__sparc__)
 107         #define ARM_OR_SPARC
 108 #endif
 109
 110
 111 ///////////////////////////////////////////////////////////////////////////////
 112 // Peek - helper functions for read-accessing memory without modifying the memory pointer
 113
 114 inline uint16 RawPeekUInt16(const void* p)
 115 {
 116 #ifndef ARM_OR_SPARC
 117         return *((uint16*)p);
 118 #else
 119         uint16 value;
 120         memcpy( &value, p, sizeof( uint16 ) );
 121         return value;
 122 #endif
 123 }
 124
 125
 126 inline uint32 RawPeekUInt32(const void* p)
 127 {
 128 #ifndef ARM_OR_SPARC
 129         return *((uint32*)p);
 130 #else
 131         uint32 value;
 132         memcpy( &value, p, sizeof( uint32 ) );
 133         return value;
 134 #endif
 135 }
 136
 137
 138 inline uint64 RawPeekUInt64(const void* p)
 139 {
 140 #ifndef ARM_OR_SPARC
 141         return *((uint64*)p);
 142 #else
 143         uint64 value;
 144         memcpy( &value, p, sizeof( uint64 ) );
 145         return value;
 146 #endif
 147 }
 148
 149
 150 inline uint8 PeekUInt8(const void* p)
 151 {
 152         return *((uint8*)p);
 153 }
 154
 155
 156 inline uint16 PeekUInt16(const void* p)
 157 {
 158         return ENDIAN_SWAP_16( RawPeekUInt16( p ) );
 159 }
 160
 161
 162 inline uint32 PeekUInt32(const void* p)
 163 {
 164         return ENDIAN_SWAP_32( RawPeekUInt32( p ) );
 165 }
 166
 167 inline uint64 PeekUInt64(const void* p)
 168 {
 169         return ENDIAN_SWAP_64( RawPeekUInt64( p ) );
 170 }
 171
 172
 173
 174 ///////////////////////////////////////////////////////////////////////////////
 175 // Poke - helper functions for write-accessing memory without modifying the memory pointer
 176
 177
 178 inline void RawPokeUInt16(void* p, uint16 nVal)
 179 {
 180 #ifndef ARM_OR_SPARC
 181         *((uint16*)p) = nVal;
 182 #else
 183         memcpy( p, &nVal, sizeof(uint16) );
 184 #endif
 185 }
 186
 187
 188 inline void RawPokeUInt32(void* p, uint32 nVal)
 189 {
 190 #ifndef ARM_OR_SPARC
 191         *((uint32*)p) = nVal;
 192 #else
 193         memcpy( p, &nVal, sizeof(uint32) );
 194 #endif
 195 }
 196
 197
 198 inline void RawPokeUInt64(void* p, uint64 nVal)
 199 {
 200 #ifndef ARM_OR_SPARC
 201         *((uint64*)p) = nVal;
 202 #else
 203         memcpy( p, &nVal, sizeof(uint64) );
 204 #endif
 205 }
 206
 207
 208 inline void PokeUInt8(void* p, uint8 nVal)
 209 {
 210         *((uint8*)p) = nVal;
 211 }
 212
 213
 214 inline void PokeUInt16(void* p, uint16 nVal)
 215 {
 216         RawPokeUInt16( p, ENDIAN_SWAP_16( nVal ) );
 217 }
 218
 219
 220 inline void PokeUInt32(void* p, uint32 nVal)
 221 {
 222         RawPokeUInt32( p, ENDIAN_SWAP_32( nVal ) );
 223 }
 224
 225 inline void PokeUInt64(void* p, uint64 nVal)
 226 {
 227         RawPokeUInt64( p, ENDIAN_SWAP_64( nVal ) );
 228 }
 229
 230 #endif
 231 // File_checked_for_headers