windows 内存分配尝试（AWE相关API编译器没找到库，所以全部注释）

#include<windows.h>#include<stdio.h>#include<tchar.h>#include<WinBase.h>#define MEMORY_REQUESTED 1024*1024BOOL LoggedSetLockPagesPrivilege(HANDLE hProcess,BOOL bEnable);int _cdecl main(){BOOL bResult;ULONG_PTR NumberOfPages;ULONG_PTR NumberOfPagesInitial;ULONG_PTR *aPFNs; //page info;holds opaque dataPVOID lpMemReserved;//awe windowSYSTEM_INFO sSysInfo;int PFNArraySize;//memory to rquest for PFN array<span style="color:#FF0000;">GetSystemInfo</span>(&sSysInfo);_tprintf(_T("This computer has page size:%dB\n"),sSysInfo.dwPageSize);//1KB = 1024Bint kbPageSize = sSysInfo.<span style="color:#FF0000;">dwPageSize</span>/1024;_tprintf(_T("This computer has page size:%dKB\n"),kbPageSize);// Calculate the number of pages of memory to request.NumberOfPages = MEMORY_REQUESTED/sSysInfo.dwPageSize;_tprintf(_T("Requesting %d pages of memory.\n"),NumberOfPages);PFNArraySize = NumberOfPages * sizeof(ULONG_PTR);_tprintf(_T("Requestig a PFN array of %d bytes.\n"),PFNArraySize);_tprintf(_T("Getting process's heap address : %p \n"),<span style="color:#FF0000;">GetProcessHeap</span>());//Allocate heap for aPFNsaPFNs = (ULONG_PTR*)<span style="color:#FF0000;">HeapAlloc</span>(<span style="color:#FF0000;">GetProcessHeap</span>(),0,PFNArraySize);_tprintf(_T("aPFNs address : %p \n"),aPFNs);if(aPFNs == NULL){_tprintf(_T("Failed to allocate on heap.\n"));return -1;}//Enable the privilege_tprintf(_T("Getting process handle : %p\n"),<span style="color:#FF0000;">GetCurrentProcess</span>());//返回-1 即FFFFFFFF/*if(!LoggedSetLockPagesPrivilege(<span style="color:#FF0000;">GetCurrentProcess</span>(),TRUE)){//编译不通过：Cannnot enable the SE_LOCK_MEMORY_NAME privilege;please check the local policy.return -2;}*///Allocate the physical memory.NumberOfPagesInitial = NumberOfPages;/*bResult = <span style="color:#FF0000;">AllocateUserPhysicalPages</span>(<span style="color:#FF0000;">GetCurrentProcess</span>(),&NumberOfPages,aPFNs);if(bResult != TRUE){_tprintf(_T("Cannot allocate physical pages (%u) \n"),<span style="color:#FF0000;">GetLastError</span>());return -3;}if(NumberOfPagesInitial != NumberOfPages){_tprintf(_T("Allocated only %p pages.\n"),NumberOfPages);return -9;}*///Reserve the virtual memory.lpMemReserved = <span style="color:#FF0000;">VirtualAlloc</span>(NULL,MEMORY_REQUESTED,MEM_RESERVE|MEM_PHYSICAL,PAGE_READWRITE);if(lpMemReserved == NULL){_tprintf(_T("Cannot reserve memory.\n"));return -4;}//Map the physical memory into the window./*bResult = <span style="color:#FF0000;">MapUserPhysicalPages</span>(lpMemReserved,NumberOfPages,aPFNs);if(bResult != TRUE){_tprintf(_T("MapUserPhysicalPages failed (%u)\n"),GetLastError());return -5;}*///unmap/*bResult = <span style="color:#FF0000;">MapUserPhysicalPages</span>(lpMemReserved,NumberOfPages,NULL);if(bResult != TRUE){_tprintf(_T("MapUserPhysicalPages failed (%u)\n"),GetLastError());return -6;}//Free the physical pages.bResult = <span style="color:#FF0000;">FreeUserPhysicalPages</span>(<span style="color:#FF0000;">GetCurrentProcess</span>(),&NumberOfPages,aPFNs);if(bResult != TRUE){_tprintf(_T("Cannot free physical pages,error %u.\n"),GetLastError());return -7;}*///Free virtual memorybResult = <span style="color:#FF0000;">VirtualFree</span>(lpMemReserved,0,MEM_RELEASE);//Release the aPFNs arraybResult = <span style="color:#FF0000;">HeapFree</span>(<span style="color:#FF0000;">GetProcessHeap</span>(),0,aPFNs);if(bResult != TRUE){_tprintf(_T("Call to HeapFree has failed (%u)\n"),<span style="color:#FF0000;">GetLastError</span>());return -8;}return 0;}/*****************************************************************   LoggedSetLockPagesPrivilege: a function to obtain or   release the privilege of locking physical pages.   Inputs:       HANDLE hProcess: Handle for the process for which the       privilege is needed       BOOL bEnable: Enable (TRUE) or disable?   Return value: TRUE indicates success, FALSE failure.*****************************************************************/BOOL LoggedSetLockPagesPrivilege(HANDLE hProcess,BOOL bEnable){struct {DWORD Count;LUID_AND_ATTRIBUTES Privilege [1];//1 个元素的数组}Info;HANDLE Token;BOOL Result;//open the tokenResult = <span style="color:#FF0000;">OpenProcessToken</span>(hProcess,TOKEN_ADJUST_PRIVILEGES,&Token);if(Result != TRUE){_tprintf(_T("Cannot open process token.\n"));return FALSE;}//Enable of disable?Info.Count = 1;if(bEnable){Info.Privilege[0].Attributes = SE_PRIVILEGE_ENABLED;}else{Info.Privilege[0].Attributes = 0;}//Get the LUIDResult = <span style="color:#FF0000;">LookupPrivilegeValue</span>(NULL,SE_LOCK_MEMORY_NAME,&(Info.Privilege[0].Luid));if(Result != TRUE){_tprintf(_T("Cannot get privilege for %s.\n"),SE_LOCK_MEMORY_NAME);return FALSE;}//Adjust the privilege.Result = <span style="color:#FF0000;">AdjustTokenPrivileges</span>(Token,FALSE,(PTOKEN_PRIVILEGES)&Info,0,NULL,NULL);//Check the resultif(Result != TRUE){_tprintf(_T("Cannot adjust token privileges (%u) \n"),<span style="color:#FF0000;">GetLastError</span>());return FALSE;}else{if(<span style="color:#FF0000;">GetLastError</span>() != ERROR_SUCCESS){_tprintf(_T("Cannnot enable the SE_LOCK_MEMORY_NAME privilege;"));_tprintf(_T("please check the local policy.\n"));return FALSE;}}return TRUE;}

C:\Users\jackz\Desktop\codes\cpp>gcc awe.cppC:\Users\jackz\Desktop\codes\cpp>aThis computer has page size:4096BThis computer has page size:4KBRequesting 256 pages of memory.Requestig a PFN array of 1024 bytes.Getting process's heap address : 007E0000aPFNs address : 0080ACF0Getting process handle : FFFFFFFF