1// Licensed to the .NET Foundation under one or more agreements.
2// The .NET Foundation licenses this file to you under the MIT license.
3// See the LICENSE file in the project root for more information.
4
5/*=============================================================
6**
7** Source: virtualalloc.c
8**
9** Purpose: Positive test the VirtualAlloc API.
10** Call VirtualAlloc with MEM_COMMIT|MEM_TOP_DOWN allocation type
11** and PAGE_NOACCESS access protection
12
13**
14**============================================================*/
15#include <palsuite.h>
16
17int __cdecl main(int argc, char *argv[])
18{
19 int err;
20 LPVOID lpVirtualAddress;
21
22 //Initialize the PAL environment
23 err = PAL_Initialize(argc, argv);
24 if(0 != err)
25 {
26 ExitProcess(FAIL);
27 }
28
29
30 //Allocate the physical storage in memory or in the paging file on disk
31 lpVirtualAddress = VirtualAlloc(NULL,//system determine where to allocate the region
32 1024, //specify the size
33 MEM_COMMIT|MEM_TOP_DOWN, //allocation type
34 PAGE_NOACCESS); //access protection
35 if(NULL == lpVirtualAddress)
36 {
37 Fail("\nFailed to call VirtualAlloc API!\n");
38 }
39
40 //decommit the specified region
41 err = VirtualFree(lpVirtualAddress,1024,MEM_DECOMMIT);
42 if(0 == err)
43 {
44 Fail("\nFailed to call VirtualFree API!\n");
45 }
46
47 PAL_Terminate();
48 return PASS;
49}
50