private void reserve(int n)
{
Debug.Assert(_capacity == b.capacity());
if(n > _capacity)
{
_capacity = System.Math.Max(n, 2 * _capacity);
_capacity = System.Math.Max(240, _capacity);
}
else if(n < _capacity)
{
_capacity = n;
}
else
{
return;
}
try
{
ByteBuffer buf = ByteBuffer.allocate(_capacity);
if(b == _emptyBuffer)
{
b = buf;
}
else
{
int pos = b.position();
b.position(0);
b.limit(System.Math.Min(_capacity, b.capacity()));
buf.put(b);
b = buf;
b.limit(b.capacity());
b.position(pos);
}
b.order(_order);
}
catch(System.OutOfMemoryException)
{
_capacity = b.capacity(); // Restore the previous capacity
throw;
}
catch(System.Exception ex)
{
_capacity = b.capacity(); // Restore the previous capacity.
Ice.MarshalException e = new Ice.MarshalException(ex);
e.reason = "unexpected exception while trying to allocate a ByteBuffer:\n" + ex;
throw e;
}
finally
{
Debug.Assert(_capacity == b.capacity());
}
}
