public void Open(string fileName, OpenMode openMode)
{
if (fileName == null)
{
throw new ArgumentNullException(nameof(fileName));
}
if (isOpened)
{
throw new InvalidOperationException("File system is already opened");
}
storage = blockStorageFactory.Create(fileName);
storage.Open(openMode);
try
{
FSHeader header;
if (openMode == OpenMode.Create)
{
header = CreateFile();
}
else
{
var headers = new FSHeader[1];
storage.ReadBlock(0, headers);
header = headers[0];
}
InitializeFromHeader(storage, header);
}
catch
{
storage.Dispose();
}
isOpened = true;
}