Windows进程内部堆的操作

/*** 进程默认堆操作，进程多个其他堆创建*/#include <Windows.h>#include <stdio.h>int main(){SYSTEM_INFO si;GetSystemInfo(&si);HANDLE hHeap1;hHeap1 = HeapCreate(HEAP_NO_SERIALIZE,si.dwPageSize*2, //堆初始大小为 2页si.dwPageSize*10 //堆最大初始化为10页大小);if (hHeap1 == NULL){printf("创建堆失败： %d\n", GetLastError());return 1;}printf("创建堆成功，初始大小为2页，最大为10页\n");HANDLE hHeap2;hHeap2 = HeapCreate(HEAP_NO_SERIALIZE,0,0);if (hHeap2 == NULL){printf("创建堆失败：%d\n", GetLastError());return 1;}printf("创建堆成功，初始大小为1页，可以增长\n");// 查看堆数量DWORD dwHeapNum;dwHeapNum = GetProcessHeaps(0,NULL);if (dwHeapNum == 0){printf("GetProcessHeaps error: %d\n", GetLastError());return 3;}printf("当前进程中堆的数量为：%d\n", dwHeapNum);// 在堆上分配内存PVOID lpMem1, lpMem2;lpMem1 = HeapAlloc(hHeap1,HEAP_ZERO_MEMORY,si.dwPageSize*3);if (lpMem1 == NULL){printf("HeapAlloc error: %d\n", GetLastError());return 4;}printf("在堆 hHeap1 上分配内存成功，起始地址为：0x%x\n", lpMem1);// 调整lpMem1指向堆内存大小PVOID lpReAllocl;lpReAllocl = HeapReAlloc(hHeap1,HEAP_ZERO_MEMORY,lpMem1,si.dwPageSize*11 //会分配失败，堆 hHeap1总共大小只有10页);if (lpReAllocl == NULL){printf("HeapRealloc error: %d\n",GetLastError());//return 5;}// 在堆 hHeap2 上分配内存lpMem2 = HeapAlloc(hHeap2,HEAP_ZERO_MEMORY,si.dwPageSize*11);if (lpMem2 == NULL){printf("HeapAlloc error: %d\n", GetLastError());return 4;}printf("在堆 hHeap2 上分配内存成功，起始地址为：0x%x\n", lpMem2);// 调整lpMem1指向堆内存大小PVOID lpReAlloc2;lpReAlloc2 = HeapReAlloc(hHeap2,HEAP_ZERO_MEMORY,lpMem2,si.dwPageSize*11 //会分配失败，堆 hHeap1总共大小只有10页);if (lpReAlloc2 == NULL){printf("HeapRealloc error: %d\n",GetLastError());//return 5;}// 释放堆内存if (!HeapFree(hHeap1,HEAP_NO_SERIALIZE, lpMem1)){printf("lpMem1 HeapFree error: %d\n", GetLastError());return 7;}else printf("lpMem1 HeapFree success.\n");if (!HeapFree(hHeap2,HEAP_NO_SERIALIZE, lpMem2)){printf("lpMem2 HeapFree error: %d\n", GetLastError());return 8;}else printf("lpMem2 HeapFree success.\n");// 堆一销毁if (!HeapDestroy(hHeap1)){printf("heap1 detroy failed.\n");return 9;}printf("销毁成功！\n");// 堆2销毁if (!HeapDestroy(hHeap1)){printf("heap1 detroy failed.\n");return 9;}printf("销毁成功！\n");// 进程默认堆HANDLE hHeap3;hHeap3 = GetProcessHeap();PVOID lpMem3;lpMem3 = HeapAlloc(hHeap3, HEAP_NO_SERIALIZE,si.dwPageSize*3);if (lpMem3 == NULL){printf("HeapAlloc error: %d\n", GetLastError());return 10;}printf("进程默认堆上分配内存成功！\n");// 释放进程默认堆if (!HeapFree(hHeap3, HEAP_NO_SERIALIZE, lpMem3)){printf("HeapFree error: %d\n", GetLastError());return 11;}printf("在进程默认堆上释放内存成功！\n");// 进程默认堆不能销毁system("pause");return 0;}