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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: test4.c
**
** Purpose: Pass an invalid handle to UnlockFile. Pass a null handle to
** UnlockFile. Create a file and lock two consecuative regions and call
** UnlockFile on the whole region (this should fail, see msdn)
**
**
**============================================================*/
#include <palsuite.h>
#include "../UnlockFile.h"
int __cdecl main(int argc, char *argv[])
{
HANDLE TheFile = NULL;
const char lpBuffer[] = "This is a test file.";
DWORD bytesWritten;
BOOL bRc = TRUE;
char fileName[] = "testfile.tmp";
if(0 != (PAL_Initialize(argc, argv)))
{
return FAIL;
}
/* Open a file which is in the directory */
TheFile = CreateFile(fileName,
GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (TheFile == INVALID_HANDLE_VALUE)
{
Fail("ERROR: Could not open file '%s' with CreateFile. "
"GetLastError() returned %d.\n",fileName,GetLastError());
}
bRc = WriteFile(
TheFile, // handle to file
lpBuffer, // data buffer
(DWORD)sizeof(lpBuffer), // number of bytes to write
&bytesWritten, // number of bytes written
NULL // overlapped buffer
);
if(!bRc)
{
Trace("ERROR: Could not write to file '%s' with WriteFile.",fileName);
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.");
}
Fail("");
}
else if(bytesWritten != (DWORD)sizeof(lpBuffer))
{
Trace("ERROR: Could not write the correct number of bytes to the "
"file '%s' with WriteFile.",fileName);
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.");
}
Fail("");
}
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.\n");
}
/* Test an invalid handle and a NULL handle */
if(UnlockFile(TheFile, 0, 0, 0, 0) != 0)
{
Fail("ERROR: Called UnlockFile on an invalid HANDLE and it "
"returned a success value.\n");
}
if(UnlockFile(NULL, 0, 0, 0, 0) != 0)
{
Fail("ERROR: Called UnlockFile with NULL passed for the HANDLE and "
"it returned a success value.\n");
}
/* Re-open the file */
TheFile = CreateFile(fileName,
GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (TheFile == INVALID_HANDLE_VALUE)
{
Fail("ERROR: Could not open file '%s' with CreateFile. "
"GetLastError() returned %d.\n",fileName,GetLastError());
}
/* Lock two consecuative regions of this file */
if(LockFile(TheFile, 0, 0, 5, 0) == 0)
{
Trace("ERROR: LockFile failed attempting to lock bytes 0-4. "
"GetLastError() returned %d.\n",GetLastError());
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.");
}
Fail("");
}
if(LockFile(TheFile, 5, 0, 5, 0) == 0)
{
Fail("ERROR: LockFile failed attempting to lock bytes 5-9. "
"GetLastError() returned %d.\n",GetLastError());
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.");
}
Fail("");
}
/* Attempt to unlock the entire region which was locked with one
call to UnlockFile. This should fail.
*/
if(UnlockFile(TheFile, 0, 0, 10, 0) != 0)
{
Fail("ERROR: Called UnlockFile on bytes 0-9 which were locked with "
"two seperate LockFile calls. This should have failed. "
"UnlockFile will not unlock consecuative locked regions.\n");
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.");
}
Fail("");
}
/* Now, unlock the regions one at a time. */
if(UnlockFile(TheFile, 0, 0, 5, 0) == 0)
{
Fail("ERROR: UnlockFile failed when attempting to unlock bytes "
"0-4 of the file. GetLastError() returned %d.\n",GetLastError());
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.");
}
Fail("");
}
if(UnlockFile(TheFile, 5, 0, 5, 0) == 0)
{
Fail("ERROR: UnlockFile failed when attempting to unlock bytes "
"5-9 of the file. GetLastError() returned %d.\n",GetLastError());
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.");
}
Fail("");
}
if(CloseHandle(TheFile) == 0)
{
Fail("ERROR: CloseHandle failed to close the file.\n");
}
PAL_Terminate();
return PASS;
}
|
