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Documentation                       Search   NLMISC::CBlockMemory Class Template Reference Block memory allocation. More... #include <block_memory.h> List of all members. Public Methods   CBlockMemory (uint blockSize=16)   Constructor. More...   CBlockMemory (const CBlockMemory< T, __ctor_dtor__ > &other)   ~CBlockMemory ()   purge(). More... T *  allocate ()   allocate an element. ctor is called. More... void  free (T *ptr)   delete an element allocated with this manager. dtor is called. NULL is tested. More... void  purge ()   delete all blocks, freeing all memory. More... void  __stl_alloc_changeEltSize (uint eltSize) uint  __stl_alloc_getEltSize () const Private Types enum   TCheckIdent { CheckAllocatedIdent = 0x01234567, CheckDeletedIdent = 0x89ABCDEF }   For debug only, check ident. More... Private Methods void  buildBlock (CBlock &block) void  releaseBlock (CBlock &block) Private Attributes uint  _BlockSize   size of a block. More... uint  _EltSize   size of an element in the block. More... sint  _NAllocatedElts   number of elements allocated. More... void *  _NextFreeElt   next free element. More... std::list< CBlock >  _Blocks   list of blocks. More... Detailed Description template<class T, bool __ctor_dtor__ = true> class NLMISC::CBlockMemory< T, __ctor_dtor__ > Block memory allocation. This memory manager is a fast memory allocator, doing same thing as new/delete. It works by block. block are always allocated, never deleted. alocation/free are in O(1). Elements with sizeof(T)<sizeof(void*) should not be used with this allocator, because sizeEltInMemory= max(sizeof(T),sizeof(void*)). free() check invalid ptr in debug only, for extra cost of 8 octets per element. NB: if template parameter __ctor_dtor__ is false, then ctor and dtor are not called when an element is allocate()-ed or deallocate()-ed. Author: Lionel Berenguier , Nevrax France Date: 2001 Definition at line 64 of file block_memory.h. Member Enumeration Documentation template<class T, bool __ctor_dtor__ = true> enum NLMISC::CBlockMemory::TCheckIdent [private]   For debug only, check ident. Enumeration values: CheckAllocatedIdent  CheckDeletedIdent  Definition at line 239 of file block_memory.h. Constructor & Destructor Documentation template<class T, bool __ctor_dtor__ = true> NLMISC::CBlockMemory< T, __ctor_dtor__ >::CBlockMemory (  uint    blockSize = 16 )  [inline]   Constructor. Definition at line 69 of file block_memory.h. template<class T, bool __ctor_dtor__ = true> NLMISC::CBlockMemory< T, __ctor_dtor__ >::CBlockMemory (  const CBlockMemory< T, __ctor_dtor__ > &    other )  [inline]   Definition at line 78 of file block_memory.h. template<class T, bool __ctor_dtor__ = true> NLMISC::CBlockMemory< T, __ctor_dtor__ >::~CBlockMemory (    )  [inline]   purge(). Definition at line 89 of file block_memory.h. Member Function Documentation template<class T, bool __ctor_dtor__ = true> void NLMISC::CBlockMemory< T, __ctor_dtor__ >::__stl_alloc_changeEltSize (  uint    eltSize )  [inline]   Definition at line 194 of file block_memory.h. template<class T, bool __ctor_dtor__ = true> uint NLMISC::CBlockMemory< T, __ctor_dtor__ >::__stl_alloc_getEltSize (    )  const [inline]   Definition at line 210 of file block_memory.h. template<class T, bool __ctor_dtor__ = true> T* NLMISC::CBlockMemory< T, __ctor_dtor__ >::allocate (    )  [inline]   allocate an element. ctor is called. Definition at line 96 of file block_memory.h. template<class T, bool __ctor_dtor__ = true> void NLMISC::CBlockMemory< T, __ctor_dtor__ >::buildBlock (  CBlock &    block )  [inline, private]   Definition at line 243 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::allocate. template<class T, bool __ctor_dtor__ = true> void NLMISC::CBlockMemory< T, __ctor_dtor__ >::free (  T *    ptr )  [inline]   delete an element allocated with this manager. dtor is called. NULL is tested. Definition at line 141 of file block_memory.h. template<class T, bool __ctor_dtor__ = true> void NLMISC::CBlockMemory< T, __ctor_dtor__ >::purge (    )  [inline]   delete all blocks, freeing all memory. It is an error to purge() or delete a CBlockMemory, while elements still remains!! You must free your elements with free(). NB: you can disable this assert if you set NL3D_BlockMemoryAssertOnPurge to false (good to quit a program quickly without uninitialize). Definition at line 174 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::~CBlockMemory. template<class T, bool __ctor_dtor__ = true> void NLMISC::CBlockMemory< T, __ctor_dtor__ >::releaseBlock (  CBlock &    block )  [inline, private]   Definition at line 294 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::purge. Member Data Documentation template<class T, bool __ctor_dtor__ = true> std::list<CBlock> NLMISC::CBlockMemory::_Blocks [private]   list of blocks. Definition at line 235 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::__stl_alloc_changeEltSize, NLMISC::CBlockMemory< CNode >::allocate, and NLMISC::CBlockMemory< CNode >::purge. template<class T, bool __ctor_dtor__ = true> uint NLMISC::CBlockMemory::_BlockSize [private]   size of a block. Definition at line 218 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::buildBlock, and NLMISC::CBlockMemory< CNode >::CBlockMemory. template<class T, bool __ctor_dtor__ = true> uint NLMISC::CBlockMemory::_EltSize [private]   size of an element in the block. Definition at line 220 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::__stl_alloc_changeEltSize, NLMISC::CBlockMemory< CNode >::__stl_alloc_getEltSize, NLMISC::CBlockMemory< CNode >::allocate, NLMISC::CBlockMemory< CNode >::buildBlock, NLMISC::CBlockMemory< CNode >::CBlockMemory, and NLMISC::CBlockMemory< CNode >::free. template<class T, bool __ctor_dtor__ = true> sint NLMISC::CBlockMemory::_NAllocatedElts [private]   number of elements allocated. Definition at line 222 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::allocate, NLMISC::CBlockMemory< CNode >::CBlockMemory, NLMISC::CBlockMemory< CNode >::free, and NLMISC::CBlockMemory< CNode >::purge. template<class T, bool __ctor_dtor__ = true> void* NLMISC::CBlockMemory::_NextFreeElt [private]   next free element. Definition at line 224 of file block_memory.h. Referenced by NLMISC::CBlockMemory< CNode >::allocate, NLMISC::CBlockMemory< CNode >::CBlockMemory, NLMISC::CBlockMemory< CNode >::free, and NLMISC::CBlockMemory< CNode >::purge. The documentation for this class was generated from the following file: block_memory.h