Windows内核--Lookaside例子程序.demo

 1 typedef struct _MYDATA {
 2     LIST_ENTRY ListEntry;
 3     ULONG X;
 4     ULONG Y;
 5 }MYDATA, * PMYDATA;
 6 void LookasideTest()
 7 {
 8     //初始化Lookaside对象
 9     PAGED_LOOKASIDE_LIST pageList;
10     ExInitializePagedLookasideList(&pageList, NULL, NULL, 0, sizeof(MYDATA), '1234', 0);
11     //sizeof(MYDATA)对应的参数表示每次分配内存的单位，'1234'是一个tag就是给lookaside的一个标签，没啥用。
12     PMYDATA MyObjectArray[50];
13     //模拟频繁使用lookaside分配内存
14     for (int i = 0; i < 50; i++)
15     {
16         MyObjectArray[i] = (PMYDATA)ExAllocateFromPagedLookasideList(&pageList);
17     }
18     //模拟频繁释放内存
19     for (int i = 0; i < 50; i++)
20     {
21         ExFreeToPagedLookasideList(&pageList, MyObjectArray[i]);
22         MyObjectArray[i] = NULL;
23     }
24     ExDeletePagedLookasideList(&pageList);
25 
26 }

标签：Windows,demo,50,--,MyObjectArray,pageList,MYDATA,PMYDATA,NULL
来源： https://www.cnblogs.com/Sna1lGo/p/15143438.html