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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=============================================================
**
** Source: virtualquery.c
**
** Purpose: Positive test the VirtualQuery API.
** Call VirtualQuery to get the virtual
** page info
**
**
**============================================================*/
#include <palsuite.h>
#define VIRTUALMEMORYSIZE 1024
int __cdecl main(int argc, char *argv[])
{
int err;
LPVOID lpVirtualAddress;
MEMORY_BASIC_INFORMATION PageInfo;
DWORD dwBufferSize;
//Initialize the PAL environment
err = PAL_Initialize(argc, argv);
if(0 != err)
{
ExitProcess(FAIL);
}
//Allocate the physical storage in memory or in the paging file on disk
lpVirtualAddress = VirtualAlloc(NULL,//determine where to allocate the region
VIRTUALMEMORYSIZE, //specify the size
MEM_COMMIT, //allocation type
PAGE_READONLY); //access protection
if(NULL == lpVirtualAddress)
{
Fail("\nFailed to call VirtualAlloc API!\n");
}
//get the virtual page info
dwBufferSize =
VirtualQuery(lpVirtualAddress,&PageInfo,sizeof(MEMORY_BASIC_INFORMATION));
if(dwBufferSize <= 0 ||
PageInfo.RegionSize <=0 ||
PAGE_READONLY != PageInfo.AllocationProtect ||
MEM_COMMIT != PageInfo.State)
{
Fail("\nFailed to call VirtualQuery API!\n");
}
//decommit the specified region
err = VirtualFree(lpVirtualAddress, //virtual page base address
VIRTUALMEMORYSIZE,//specify the size
MEM_DECOMMIT);//free operation
if(0 == err)
{
Fail("\nFailed to call VirtualFree API!\n");
}
PAL_Terminate();
return PASS;
}
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