public DiskBackend(string filename, long filesize, ICacheBackend fallback)
{
this.fallback = fallback;
usedSize = 0;
maxFileSize = filesize;
FileInfo fi = new FileInfo(filename);
FreeList.AddLast(new FileSegment(0, long.MaxValue));
dataFile = filename;
indexFile = dataFile + ".index";
// create the file if it doesnt exist
if (!File.Exists(filename))
{
using (FileStream fs = File.Create(filename))
{
// do nothing
}
}
try
{
LoadIndex();
}
catch (Exception ex)
{
Console.WriteLine(ex);
// clear the index
data.Clear();
FreeList.Clear();
FreeList.AddLast(new FileSegment(0, long.MaxValue));
}
}
public void Dispose()
{
if (backend is IDisposable)
{
((IDisposable)backend).Dispose();
}
backend = null;
}
public AbstractCacheFrontend(string identifier, ICacheBackend backend)
{
this.identifier = identifier;
this.backend = backend;
}
public MemoryBackend(int max, ICacheBackend fb)
{
this.max = max;
fallback = fb;
}
public StringFrontend(string identifier, ICacheBackend backend) : base(identifier, backend)
{
}
public Cache(ICacheBackend backend)
{
this.backend = backend;
}
