/// <summary>
/// This will cause the transaction to be written to the database.
/// Also Calls Dispose()
/// </summary>
/// <remarks>Duplicate calls to this function, or subsequent calls to RollbackTransaction will throw an exception</remarks>
public void CommitAndDispose()
{
if (m_disposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
foreach (SubFileStream file in m_openedFiles)
{
if (file != null && !file.IsDisposed)
{
throw new Exception("Not all files have been properly disposed of.");
}
}
try
{
//ToDo: First commit the data, then the file system.
m_dataReader.CommitChanges(m_fileHeaderBlock);
if (m_delHasBeenCommitted != null)
{
m_delHasBeenCommitted.Invoke();
}
}
finally
{
m_delHasBeenCommitted = null;
m_delHasBeenRolledBack = null;
m_disposed = true;
GC.SuppressFinalize(this);
}
}
private static void TestReadAndWritesWithCommit(DiskIo stream)
{
FileHeaderBlock header;
SubFileHeader node;
SubFileStream ds, ds1, ds2;
//Open The File For Editing
header = stream.LastCommittedHeader.CloneEditable();
node = header.Files[0];
ds = new SubFileStream(stream, node, header, false);
TestSingleByteWrite(ds);
stream.CommitChanges(header);
header = stream.LastCommittedHeader;
node = header.Files[0];
ds1 = ds = new SubFileStream(stream, node, header, true);
TestSingleByteRead(ds);
//Open The File For Editing
header = stream.LastCommittedHeader.CloneEditable();
node = header.Files[0];
ds = new SubFileStream(stream, node, header, false);
TestCustomSizeWrite(ds, 5);
stream.CommitChanges(header);
header = stream.LastCommittedHeader;
node = header.Files[0];
ds2 = ds = new SubFileStream(stream, node, header, true);
TestCustomSizeRead(ds, 5);
//Open The File For Editing
header = stream.LastCommittedHeader.CloneEditable();
node = header.Files[0];
ds = new SubFileStream(stream, node, header, false);
TestCustomSizeWrite(ds, BlockDataLength + 20);
stream.CommitChanges(header);
header = stream.LastCommittedHeader;
node = header.Files[0];
ds = new SubFileStream(stream, node, header, true);
TestCustomSizeRead(ds, BlockDataLength + 20);
//check old versions of the file
TestSingleByteRead(ds1);
TestCustomSizeRead(ds2, 5);
}
private static void TestReadAndWrites(DiskIo stream)
{
FileHeaderBlock header = stream.LastCommittedHeader;
header = header.CloneEditable();
SubFileHeader node = header.CreateNewFile(SubFileName.CreateRandom());
header.CreateNewFile(SubFileName.CreateRandom());
header.CreateNewFile(SubFileName.CreateRandom());
SubFileStream ds = new SubFileStream(stream, node, header, false);
TestSingleByteWrite(ds);
TestSingleByteRead(ds);
TestCustomSizeWrite(ds, 5);
TestCustomSizeRead(ds, 5);
TestCustomSizeWrite(ds, BlockDataLength + 20);
TestCustomSizeRead(ds, BlockDataLength + 20);
stream.CommitChanges(header);
}
private static void TestReadAndWritesToDifferentFilesWithCommit(DiskIo stream)
{
FileHeaderBlock header;
SubFileStream ds;
//Open The File For Editing
header = stream.LastCommittedHeader.CloneEditable();
ds = new SubFileStream(stream, header.Files[0], header, false);
TestSingleByteWrite(ds);
ds = new SubFileStream(stream, header.Files[1], header, false);
TestCustomSizeWrite(ds, 5);
ds = new SubFileStream(stream, header.Files[2], header, false);
TestCustomSizeWrite(ds, BlockDataLength + 20);
stream.CommitChanges(header);
header = stream.LastCommittedHeader;
ds = new SubFileStream(stream, header.Files[0], header, true);
TestSingleByteRead(ds);
ds = new SubFileStream(stream, header.Files[1], header, true);
TestCustomSizeRead(ds, 5);
ds = new SubFileStream(stream, header.Files[2], header, true);
TestCustomSizeRead(ds, BlockDataLength + 20);
}
