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 #if OGRE_MEMORY_TRACKER
00055             const char* file = 0, int line = 0, const char* func = 0
00056 #else
00057             const char*  = 0, int  = 0, const char* = 0
00058 #endif
00059             )
00060         {
00061             void* ptr = malloc(count);
00062 #if OGRE_MEMORY_TRACKER
00063             // this alloc policy doesn't do pools
00064             MemoryTracker::get()._recordAlloc(ptr, count, 0, file, line, func);
00065 #endif
00066             return ptr;
00067         }
00068 
00069         static inline void deallocateBytes(void* ptr)
00070         {
00071 #if OGRE_MEMORY_TRACKER
00072             MemoryTracker::get()._recordDealloc(ptr);
00073 #endif
00074             free(ptr);
00075         }
00076 
00078         static inline size_t getMaxAllocationSize()
00079         {
00080             return std::numeric_limits<size_t>::max();
00081         }
00082     private:
00083         // no instantiation
00084         StdAllocPolicy()
00085         { }
00086     };
00087 
00100     template <size_t Alignment = 0>
00101     class StdAlignedAllocPolicy
00102     {
00103     public:
00104         // compile-time check alignment is available.
00105         typedef int IsValidAlignment
00106             [Alignment <= 128 && ((Alignment & (Alignment-1)) == 0) ? +1 : -1];
00107 
00108         static inline void* allocateBytes(size_t count, 
00109 #if OGRE_MEMORY_TRACKER
00110             const char* file = 0, int line = 0, const char* func = 0
00111 #else
00112             const char*  = 0, int  = 0, const char* = 0
00113 #endif
00114             )
00115         {
00116             void* ptr = Alignment ? AlignedMemory::allocate(count, Alignment)
00117                 : AlignedMemory::allocate(count);
00118 #if OGRE_MEMORY_TRACKER
00119             // this alloc policy doesn't do pools
00120             MemoryTracker::get()._recordAlloc(ptr, count, 0, file, line, func);
00121 #endif
00122             return ptr;
00123         }
00124 
00125         static inline void deallocateBytes(void* ptr)
00126         {
00127 #if OGRE_MEMORY_TRACKER
00128             MemoryTracker::get()._recordDealloc(ptr);
00129 #endif
00130             AlignedMemory::deallocate(ptr);
00131         }
00132 
00134         static inline size_t getMaxAllocationSize()
00135         {
00136             return std::numeric_limits<size_t>::max();
00137         }
00138     private:
00139         // No instantiation
00140         StdAlignedAllocPolicy()
00141         { }
00142     };
00143 
00144 #endif
00145 
00146 }// namespace Ogre
00147 
00148 #endif // __MemoryStdAlloc_H__

Copyright © 2008 Torus Knot Software Ltd
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Last modified Sun Sep 27 22:02:24 2009