Orocos Real-Time Toolkit  2.5.0
Handle.cpp
00001 /***************************************************************************
00002   tag: Peter Soetens  Wed Jan 18 14:11:39 CET 2006  Handle.cxx
00003 
00004                         Handle.cxx -  description
00005                            -------------------
00006     begin                : Wed January 18 2006
00007     copyright            : (C) 2006 Peter Soetens
00008     email                : peter.soetens@mech.kuleuven.be
00009 
00010  ***************************************************************************
00011  *   This library is free software; you can redistribute it and/or         *
00012  *   modify it under the terms of the GNU General Public                   *
00013  *   License as published by the Free Software Foundation;                 *
00014  *   version 2 of the License.                                             *
00015  *                                                                         *
00016  *   As a special exception, you may use this file as part of a free       *
00017  *   software library without restriction.  Specifically, if other files   *
00018  *   instantiate templates or use macros or inline functions from this     *
00019  *   file, or you compile this file and link it with other files to        *
00020  *   produce an executable, this file does not by itself cause the         *
00021  *   resulting executable to be covered by the GNU General Public          *
00022  *   License.  This exception does not however invalidate any other        *
00023  *   reasons why the executable file might be covered by the GNU General   *
00024  *   Public License.                                                       *
00025  *                                                                         *
00026  *   This library is distributed in the hope that it will be useful,       *
00027  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00028  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00029  *   Lesser General Public License for more details.                       *
00030  *                                                                         *
00031  *   You should have received a copy of the GNU General Public             *
00032  *   License along with this library; if not, write to the Free Software   *
00033  *   Foundation, Inc., 59 Temple Place,                                    *
00034  *   Suite 330, Boston, MA  02111-1307  USA                                *
00035  *                                                                         *
00036  ***************************************************************************/
00037 
00038 
00039 #include "Handle.hpp"
00040 #include "rtt-fwd.hpp"
00041 
00042 
00043 namespace RTT {
00044     using namespace detail;
00045 
00046     Handle::Handle()
00047         : m_conn(0)
00048     {
00049     }
00050 
00051     Handle::Handle(connection_t conn)
00052         : m_conn(conn)
00053     {
00054     }
00055 
00056     Handle::Handle(const Handle& hs)
00057         : m_conn( hs.m_conn )
00058     {
00059     }
00060 
00061     Handle::~Handle()
00062     {
00063     }
00064 
00065     bool Handle::connect()
00066     {
00067         if ( connected() )
00068             return true;
00069         return m_conn && m_conn->connect();
00070     }
00071 
00072     bool Handle::disconnect()
00073     {
00074         if ( !connected() )
00075             return true;
00076         return m_conn->disconnect();
00077     }
00078 
00079     bool Handle::connected() const {
00080         return m_conn && m_conn->connected();
00081     }
00082 
00083     Handle::operator bool() const {
00084         return m_conn;
00085     }
00086 
00087     bool Handle::ready() const {
00088         return m_conn;
00089     }
00090 
00091 
00092     ScopedHandle::ScopedHandle(const Handle& hs)
00093         : Handle( hs )
00094     {
00095     }
00096 
00097 
00098     ScopedHandle::~ScopedHandle()
00099     {
00100         this->disconnect();
00101     }
00102     CleanupHandle::CleanupHandle(const Handle& hs)
00103         : Handle( hs )
00104     {
00105     }
00106 
00107     CleanupHandle::~CleanupHandle()
00108     {
00109         if (m_conn)
00110             m_conn->destroy();
00111     }
00112 }