C ++ memory pool Customization

// Memorypool. h: interface for the cmemorypool class. //////////////////////////////////////// /// // If! Defined (partition _) # define partition _ # If _ msc_ver> 1000 # pragma once # endif // _ msc_ver> 1000 # include <process. h> template <class datatype> class cmemorypool {PRIVATE: datatype ** m_ppmemoryarray; datatype ** m_ppmemoryarrayfordelete; datatype * m_pmemory; dwordm_dwfreemoryindex; dwordm_dwmaxobjectnum; // Critical_sectionm_csmemory; public: voidfree (datatype * pTARGET) {If (! PTARGET) return; // entercriticalsection (& m_csmemory); m_ppmemoryarray [m_dwfreemoryindex] = pTARGET; sums ++; // counts (& m_csmemory);} voidinit (DWORD dwnum) {m_dwmaxobjectnum = dwnum; // you can use m_ppmemoryarray = new ype * [m_dwmaxobjectnum]; If (! M_ppmemoryarray) MessageBox (null, "memory alloc fail: m_ppmemoryarray", "error", null); memset (m_ppmemoryarray, 0, sizeof (datatype *) * m_dwmaxobjectnum ); m_ppmemoryarrayfordelete = new datatype * [m_dwmaxobjectnum]; If (! Messages) MessageBox (null, "memory alloc fail: m_ppmemoryarrayfordelete", "error", null); memset (values, 0, sizeof (ype *) * m_dwmaxobjectnum); m_dwfreemoryindex = 0; // artifact (DWORD I = 0; I <m_dwmaxobjectnum; I ++) {m_ppmemoryarrayfordelete [m_dwfreememoryindex] = new datatype; If (! Values [m_dwfreemoryindex]) MessageBox (null, "memory alloc fail: Values [m_dwfreememoryindex]", "error", null); m_ppmemoryarray [m_dwfreemoryindex] = values [m_dwfreemoryindex]; m_dwfreememoryindex ++;} // evaluate (& m_csmemory, 200);} datatype * alloc () {// entercriticalsection (& m_csmemory); If (m_dwfreemoryindex = 0) {mes Sagebox (null, "No more memory can alloc: cmemorypool: alloc ()", "error", mb_ OK); // leavecriticalsection (& m_csmemory); return NULL ;} parameters --; datatype * temp = m_ppmemoryarray [m_dwfreememoryindex]; // values (& m_csmemory); Return temp;} dwordgetfreeindexnum () {// entercriticalsection (& m_csmemory ); DWORD temp = m_dwfreememoryindex; // leavecriticalsection (& m_csmemory); Return temp;} cmemo Rypool () {m_ppmemoryarray = NULL; m_dwfreememoryindex = 0; m_dwmaxobjectnum = 0; m_pmemory = NULL; m_ppmemoryarrayfordelete = NULL;} virtual ~ Cmemorypool () {// deletecriticalsection (& m_csmemory); For (DWORD I = 0; I <m_dwmaxobjectnum; I ++) {If (m_ppmemoryarrayfordelete [I]) delete m_ppmemoryarrayfordelete [I];} Delete [] m_ppmemoryarray; Delete [] m_ppmemoryarrayfordelete ;};# endif //! Defined (partition _)