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 allocation type
11** and PAGE_READONLY access protection
12**
13
14**
15**============================================================*/
16#include <palsuite.h>
17
18int __cdecl main(int argc, char *argv[])
19{
20 int err;
21 LPVOID lpVirtualAddress;
22
23 //Initialize the PAL environment
24 err = PAL_Initialize(argc, argv);
25 if(0 != err)
26 {
27 ExitProcess(FAIL);
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, //allocation type
34 PAGE_EXECUTE_READWRITE); //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
48 PAL_Terminate();
49 return PASS;
50}
51