Back to index

nux  3.0.0
Memory.cpp
Go to the documentation of this file.
00001 /*
00002  * Copyright 2010 Inalogic® Inc.
00003  *
00004  * This program is free software: you can redistribute it and/or modify it
00005  * under the terms of the GNU Lesser General Public License, as
00006  * published by the  Free Software Foundation; either version 2.1 or 3.0
00007  * of the License.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranties of
00011  * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
00012  * PURPOSE.  See the applicable version of the GNU Lesser General Public
00013  * License for more details.
00014  *
00015  * You should have received a copy of both the GNU Lesser General Public
00016  * License along with this program. If not, see <http://www.gnu.org/licenses/>
00017  *
00018  * Authored by: Jay Taoko <jaytaoko@inalogic.com>
00019  *
00020  */
00021 
00022 
00023 #include "NuxCore.h"
00024 
00025 namespace nux
00026 {
00027 
00028   unsigned int Memcmp ( const void *Buf1, const void *Buf2, unsigned int Count )
00029   {
00030     return std::memcmp ( Buf1, Buf2, Count );
00031   }
00032 
00033   bool MemIsZero ( const void *V, size_t Count )
00034   {
00035     unsigned char *B = (unsigned char *) V;
00036 
00037     while ( Count-- > 0 )
00038       if ( *B++ != 0 )
00039         return false;
00040 
00041     return true;
00042   }
00043 
00044   void *Memmove ( void *Dest, const void *Src, size_t Count )
00045   {
00046     if (Count == 0)
00047       return Dest;
00048 
00049     return std::memmove ( Dest, Src, Count );
00050   }
00051 
00052   void Memset ( void *Dest, int C, size_t Count )
00053   {
00054     std::memset ( Dest, C, Count );
00055   }
00056 
00057   void Memzero ( void *Dest, size_t Count )
00058   {
00059     std::memset ( Dest, 0, Count );
00060   }
00061 
00062   void Memcpy ( void *Dest, const void *Src, size_t Count )
00063   {
00064     std::memcpy ( Dest, Src, Count );
00065   }
00066 
00067   void Memswap ( void *Ptr1, void *Ptr2, size_t Size )
00068   {
00069     void *Temp = malloc (Size);
00070     Memcpy ( Temp, Ptr1, Size );
00071     Memcpy ( Ptr1, Ptr2, Size );
00072     Memcpy ( Ptr2, Temp, Size );
00073     free (Temp);
00074   }
00075 
00076   bool IsMemoryAligned (void *data, unsigned int alignment)
00077   {
00078     nuxAssertMsg ( (alignment & (alignment - 1) ) == 0, TEXT ("[IsMemAligned] Argument for memory alignment test is not a power of two: %d"), alignment);
00079     return ( ( (uintptr_t) &data) & (alignment - 1) ) == 0;
00080   }
00081 
00082   void *Malloc (size_t Count, unsigned int Alignment)
00083   {
00084     return std::malloc ( Count );
00085   }
00086 
00087   void *Realloc (void *Original, size_t Count, unsigned int Alignment)
00088   {
00089     void *mem = std::realloc ( Original, Count );
00090 
00091     if (mem == 0)
00092     {
00093       nuxCriticalMsg (TEXT ("[Realloc] realloc failed."));
00094       return NULL;
00095     }
00096 
00097     return mem;
00098   }
00099 
00100 }