TpconfigLine is a struct and therfeore its member variables should
not have the m prefix.

The tape server now makes sure that /etc/castor/TPCONFIG neither
defines multiple DGNs nor multiple initial states for the same
tape drive.

The TpconfigLine structure would not allow you to call its constructor with
string literals.  This commit removes this unwanted limitation.

BlockingQueue.hpp has been reformated a little bit and I fixed stupid error in the UT

in a dev branch and should have made it earlier to the official one...

in a dev branch and should have made it earlier to the official one...

upgrade to be non-transparent.

upgrade to be non-transparent.

With unit test.

It was previously public, while it is not intended to be used directly.

This concrete implementation will hopefully be generic enough
to be shared between the future tape server and remote media
changer daemons.

The future tape server and remote media changer daemons will be single
threaded.  They will therefore most probably use the poll() system call
to handle multiple simultaneous I/O requests using a single thread. The
Reactor architecture pattern described in the following book is one way
to use poll() in a object-oriented way.  The PollReactor and
PollEventHandler classes contribute towards implementing this pattern.

    Pattern-Oriented Software Architecture Volume 2
    Patterns for Concurrent and Networked Objects
    Authors: Schmidt, Stal, Rohnert and Buschmann
    Publication date: 2000
    ISBN 0-471-60695-2

Continuing my efforts to reduce the castor::tape::utils namespace to the
bare minimum I have removed the now unused class SmartFdList.

Continuing my efforts to reduce the castor::tape::utils namespace to the bare
minimum I have removed the now unused class castor::tape::utils::ScopedLock.