OGRE: OgreMemoryStdAlloc.h Source File - OGRE Documentation

# 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
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Jul 26 11:32:18 2009