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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: createfilemapping.c (test 1)
**
** Purpose: Positive test the CreateFileMapping API.
** Call CreateFileMapping with access PAGE_READONLY.
**
**
**============================================================*/
#include <palsuite.h>
const int MAPPINGSIZE = 2048;
int __cdecl main(int argc, char *argv[])
{
HANDLE hFile;
char buf[] = "this is a test string";
char ch[2048];
char lpFileName[] = "test.tmp";
DWORD dwBytesWritten;
BOOL err;
int RetVal = PASS;
HANDLE hFileMapping;
LPVOID lpMapViewAddress;
/* Initialize the PAL environment.
*/
if(0 != PAL_Initialize(argc, argv))
{
return FAIL;
}
/* Create a file handle with CreateFile.
*/
hFile = CreateFile( lpFileName,
GENERIC_WRITE|GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
Fail("ERROR: %u :unable to create file \"%s\".\n",
GetLastError(),
lpFileName);
}
/* Initialize the buffers.
*/
memset(ch, 0, MAPPINGSIZE);
/* Write to the File handle.
*/
err = WriteFile(hFile,
buf,
strlen(buf),
&dwBytesWritten,
NULL);
if (err == FALSE)
{
Trace("ERROR: %u :unable to write to file handle "
"hFile=0x%lx\n",
GetLastError(),
hFile);
RetVal = FAIL;
goto CleanUpOne;
}
/* Flush to the hard-drive.
*/
FlushFileBuffers(hFile);
/* Create a unnamed file-mapping object with file handle FileHandle
* and with PAGE_READWRITE protection.
*/
hFileMapping = CreateFileMapping(
hFile,
NULL, /*not inherited*/
PAGE_READONLY, /*read and wite*/
0, /*high-order size*/
0, /*low-order size*/
NULL); /*unnamed object*/
if(NULL == hFileMapping)
{
Trace("ERROR:%u: Failed to create File Mapping.\n",
GetLastError());
RetVal = FAIL;
goto CleanUpOne;
}
/* maps a view of a file into the address space of the calling process.
*/
lpMapViewAddress = MapViewOfFile(
hFileMapping,
FILE_MAP_READ, /* access code */
0, /*high order offset*/
0, /*low order offset*/
0); /* number of bytes for map */
if(NULL == lpMapViewAddress)
{
Trace("ERROR:%u: Failed to call MapViewOfFile "
"API to map a view of file!\n",
GetLastError());
RetVal = FAIL;
goto CleanUpTwo;
}
/* Copy the MapViewOfFile to buffer, so we can
* compare with value read from file directly.
*/
memcpy(ch, (LPCSTR)lpMapViewAddress, MAPPINGSIZE);
if (memcmp(ch, buf, strlen(buf))!= 0)
{
Trace("ERROR: MapViewOfFile not equal to file contents "
"retrieved \"%s\", expected \"%s\".\n",
ch, buf);
RetVal = FAIL;
goto CleanUpThree;
}
CleanUpThree:
/* Unmap the view of file.
*/
if ( UnmapViewOfFile(lpMapViewAddress) == FALSE )
{
Trace("ERROR:%u: Failed to UnmapViewOfFile of \"%0x%lx\".\n",
GetLastError(),
lpMapViewAddress);
RetVal = FAIL;
}
CleanUpTwo:
/* Close Handle to opend file mapping.
*/
if ( CloseHandle(hFileMapping) == FALSE )
{
Trace("ERROR:%u: Failed to CloseHandle \"0x%lx\".\n",
GetLastError(),
hFileMapping);
RetVal = FAIL;
}
CleanUpOne:
/* Close Handle to create file mapping.
*/
if ( CloseHandle(hFile) == FALSE )
{
Trace("ERROR:%u: Failed to CloseHandle \"0x%lx\".\n",
GetLastError(),
hFile);
RetVal = FAIL;
}
/* Terminate the PAL.
*/
PAL_TerminateEx(RetVal);
return RetVal;
}
|
