OgreMemoryStdAlloc.h

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004 (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright (c) 2000-2008 Torus Knot Software Ltd
00008 Also see acknowledgements in Readme.html
00009 
00010 This program is free software; you can redistribute it and/or modify it under
00011 the terms of the GNU Lesser General Public License as published by the Free Software
00012 Foundation; either version 2 of the License, or (at your option) any later
00013 version.
00014 
00015 This program is distributed in the hope that it will be useful, but WITHOUT
00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00018 
00019 You should have received a copy of the GNU Lesser General Public License along with
00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00022 http://www.gnu.org/copyleft/lesser.txt.
00023 
00024 You may alternatively use this source under the terms of a specific version of
00025 the OGRE Unrestricted License provided you have obtained such a license from
00026 Torus Knot Software Ltd.
00027 -----------------------------------------------------------------------------
00028 */
00029 
00030 #ifndef __MemoryStdAlloc_H__
00031 #define __MemoryStdAlloc_H__
00032 
00033 #include <memory>
00034 #include <limits>
00035 
00036 #include "OgreAlignedAllocator.h"
00037 #include "OgreMemoryTracker.h"
00038 
00039 namespace Ogre
00040 {
00041 #if OGRE_MEMORY_ALLOCATOR == OGRE_MEMORY_ALLOCATOR_STD
00042 
00050     class _OgreExport StdAllocPolicy
00051     {
00052     public:
00053         static inline void* allocateBytes(size_t count, 
00054             const char* file = 0, int line = 0, const char* func = 0)
00055         {
00056             void* ptr = malloc(count);
00057 #if OGRE_MEMORY_TRACKER
00058             // this alloc policy doesn't do pools
00059             MemoryTracker::get()._recordAlloc(ptr, count, 0, file, line, func);
00060 #else
00061             // avoid unused params warning
00062             count=file+line-func;
00063 #endif
00064             return ptr;
00065         }
00066 
00067         static inline void deallocateBytes(void* ptr)
00068         {
00069 #if OGRE_MEMORY_TRACKER
00070             MemoryTracker::get()._recordDealloc(ptr);
00071 #endif
00072             free(ptr);
00073         }
00074 
00076         static inline size_t getMaxAllocationSize()
00077         {
00078             return std::numeric_limits<size_t>::max();
00079         }
00080     private:
00081         // no instantiation
00082         StdAllocPolicy()
00083         { }
00084     };
00085 
00098     template <size_t Alignment = 0>
00099     class StdAlignedAllocPolicy
00100     {
00101     public:
00102         // compile-time check alignment is available.
00103         typedef int IsValidAlignment
00104             [Alignment <= 128 && ((Alignment & (Alignment-1)) == 0) ? +1 : -1];
00105 
00106         static inline void* allocateBytes(size_t count, 
00107             const char* file = 0, int line = 0, const char* func = 0)
00108         {
00109             void* ptr = Alignment ? AlignedMemory::allocate(count, Alignment)
00110                 : AlignedMemory::allocate(count);
00111 #if OGRE_MEMORY_TRACKER
00112             // this alloc policy doesn't do pools
00113             MemoryTracker::get()._recordAlloc(ptr, count, 0, file, line, func);
00114 #else
00115             // avoid unused params warning
00116             file;line;func;
00117 #endif
00118             return ptr;
00119         }
00120 
00121         static inline void deallocateBytes(void* ptr)
00122         {
00123 #if OGRE_MEMORY_TRACKER
00124             MemoryTracker::get()._recordDealloc(ptr);
00125 #endif
00126             AlignedMemory::deallocate(ptr);
00127         }
00128 
00130         static inline size_t getMaxAllocationSize()
00131         {
00132             return std::numeric_limits<size_t>::max();
00133         }
00134     private:
00135         // No instantiation
00136         StdAlignedAllocPolicy()
00137         { }
00138     };
00139 
00140 #endif
00141 
00142 }// namespace Ogre
00143 
00144 #endif // __MemoryStdAlloc_H__

Copyright © 2008 Torus Knot Software Ltd
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Last modified Tue Nov 4 11:02:30 2008