public virtual void DeleteFile(FileRecord fileRecord)
{
MftSegmentReference parentDirectory = fileRecord.ParentDirectoryReference;
FileRecord parentDirectoryRecord = GetFileRecord(parentDirectory);
IndexData parentDirectoryIndex = new IndexData(this, parentDirectoryRecord, AttributeType.FileName);
// Update parent directory index
List <FileNameRecord> fileNameRecords = fileRecord.FileNameRecords;
foreach (FileNameRecord fileNameRecord in fileNameRecords)
{
parentDirectoryIndex.RemoveEntry(fileNameRecord.GetBytes());
}
// Deallocate all data clusters
foreach (AttributeRecord atttributeRecord in fileRecord.Attributes)
{
if (atttributeRecord is NonResidentAttributeRecord)
{
NonResidentAttributeData attributeData = new NonResidentAttributeData(this, fileRecord, (NonResidentAttributeRecord)atttributeRecord);
attributeData.Truncate(0);
}
}
m_mft.DeleteFile(fileRecord);
}
public virtual void DeleteFile(FileRecord fileRecord)
{
MftSegmentReference parentDirectory = fileRecord.ParentDirectoryReference;
FileRecord parentDirectoryRecord = GetFileRecord(parentDirectory);
m_mftLock.AcquireWriterLock(Timeout.Infinite);
IndexData parentDirectoryIndex = new IndexData(this, parentDirectoryRecord, AttributeType.FileName);
uint transactionID = m_logClient.AllocateTransactionID();
// Update parent directory index
List <FileNameRecord> fileNameRecords = fileRecord.FileNameRecords;
foreach (FileNameRecord fileNameRecord in fileNameRecords)
{
parentDirectoryIndex.RemoveEntry(fileNameRecord.GetBytes());
}
// Deallocate all data clusters
foreach (AttributeRecord atttributeRecord in fileRecord.Attributes)
{
if (atttributeRecord is NonResidentAttributeRecord)
{
NonResidentAttributeData attributeData = new NonResidentAttributeData(this, fileRecord, (NonResidentAttributeRecord)atttributeRecord);
attributeData.Truncate(0);
}
}
m_mft.DeleteFile(fileRecord, transactionID);
m_logClient.WriteForgetTransactionRecord(transactionID);
m_logClient.WriteRestartRecord(this.MajorVersion, true);
m_mftLock.ReleaseWriterLock();
}
public void Truncate(ulong newLengthInBytes)
{
ulong currentSize = this.Length;
if (m_attributeRecord is NonResidentAttributeRecord)
{
NonResidentAttributeData attributeData = new NonResidentAttributeData(m_volume, m_fileRecord, (NonResidentAttributeRecord)m_attributeRecord);
attributeData.Truncate(newLengthInBytes);
}
else
{
byte[] data = ((ResidentAttributeRecord)m_attributeRecord).Data;
byte[] temp = new byte[newLengthInBytes];
Array.Copy(data, temp, temp.Length);
((ResidentAttributeRecord)m_attributeRecord).Data = temp;
if (m_fileRecord != null)
{
m_volume.UpdateFileRecord(m_fileRecord);
}
}
}
public virtual void DeleteFile(FileRecord fileRecord)
{
lock (m_mftLock)
{
MftSegmentReference parentDirectory = fileRecord.ParentDirectoryReference;
FileRecord parentDirectoryRecord = GetFileRecord(parentDirectory);
IndexData parentDirectoryIndex = new IndexData(this, parentDirectoryRecord, AttributeType.FileName);
if (fileRecord.IsDirectory)
{
IndexData directoryIndex = new IndexData(this, fileRecord, AttributeType.FileName);
if (!directoryIndex.IsEmpty)
{
throw new DirectoryNotEmptyException();
}
}
uint transactionID = m_logClient.AllocateTransactionID();
// Update parent directory index
List <FileNameRecord> fileNameRecords = fileRecord.FileNameRecords;
foreach (FileNameRecord fileNameRecord in fileNameRecords)
{
parentDirectoryIndex.RemoveEntry(fileNameRecord.GetBytes());
}
// Deallocate all data clusters
foreach (AttributeRecord atttributeRecord in fileRecord.Attributes)
{
if (atttributeRecord is NonResidentAttributeRecord)
{
NonResidentAttributeData attributeData = new NonResidentAttributeData(this, fileRecord, (NonResidentAttributeRecord)atttributeRecord);
attributeData.Truncate(0);
}
}
m_mft.DeleteFile(fileRecord, transactionID);
m_logClient.WriteForgetTransactionRecord(transactionID);
m_logClient.WriteRestartRecord(true);
}
}
