/// <exception cref="Db4objects.Db4o.Ext.Db4oIOException"></exception>
public override void Seek(long pos)
{
_delegate.Seek(pos);
}
public virtual int Read(long position, byte[] buffer, int bytesToRead)
{
_io.Seek(position);
return(_io.Read(buffer, bytesToRead));
}
/// <exception cref="System.Exception"></exception>
private void AssertReadWriteString(IoAdapter adapter, string str)
{
var data = Runtime.GetBytesForString(str);
var read = new byte[2048];
adapter.Seek(0);
adapter.Write(data);
adapter.Seek(0);
adapter.Read(read);
Assert.AreEqual(str, Runtime.GetStringForBytes(read, 0, data.Length));
}
/// <exception cref="System.Exception"></exception>
private void AssertReadWriteAheadFileEnd(IoAdapter adapter, string str)
{
var data = Runtime.GetBytesForString(str);
var read = new byte[2048];
adapter.Seek(10);
var readBytes = adapter.Read(data);
Assert.AreEqual(-1, readBytes);
Assert.AreEqual(0, adapter.GetLength());
adapter.Seek(0);
readBytes = adapter.Read(data);
Assert.AreEqual(-1, readBytes);
Assert.AreEqual(0, adapter.GetLength());
adapter.Seek(10);
adapter.Write(data);
Assert.AreEqual(10 + data.Length, adapter.GetLength());
adapter.Seek(0);
readBytes = adapter.Read(read);
Assert.AreEqual(10 + data.Length, readBytes);
adapter.Seek(20 + data.Length);
readBytes = adapter.Read(read);
Assert.AreEqual(-1, readBytes);
adapter.Seek(1024 + data.Length);
readBytes = adapter.Read(read);
Assert.AreEqual(-1, readBytes);
adapter.Seek(1200);
adapter.Write(data);
adapter.Seek(0);
readBytes = adapter.Read(read);
Assert.AreEqual(1200 + data.Length, readBytes);
}
public virtual void Replay(IoAdapter adapter)
{
adapter.Seek(_address);
}