From: g0dil <g0dil@270642c3-0616-0410-b53a-bc976706d245>
Date: Mon, 16 Mar 2009 12:00:38 +0000 (+0000)
Subject: PPI: Add connector jack classes
X-Git-Url: http://g0dil.de/git?a=commitdiff_plain;h=2eb3c777cc9db271336c226f4eeec6018c196c3e;p=senf.git

PPI: Add connector jack classes

git-svn-id: https://svn.berlios.de/svnroot/repos/senf/trunk@1154 270642c3-0616-0410-b53a-bc976706d245
---

diff --git a/PPI/Jack.cci b/PPI/Jack.cci
new file mode 100644
index 0000000..143afe7
--- /dev/null
+++ b/PPI/Jack.cci
@@ -0,0 +1,126 @@
+// $Id$
+//
+// Copyright (C) 2009 
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//     Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+/** \file
+    \brief Jack inline non-template implementation */
+
+//#include "Jack.ih"
+
+// Custom includes
+#include "Setup.hh"
+
+#define prefix_ inline
+///////////////////////////////cci.p///////////////////////////////////////
+
+prefix_ senf::ppi::connector::GenericActiveInputJack::
+GenericActiveInputJack(GenericActiveInput & input)
+    : input_ (input)
+{}
+
+prefix_ senf::ppi::connector::GenericActiveInput &
+senf::ppi::connector::GenericActiveInputJack::connector()
+{
+    return input_;
+}
+
+prefix_ senf::ppi::connector::GenericActiveOutputJack::
+GenericActiveOutputJack(GenericActiveOutput & output)
+    : output_ (output)
+{}
+
+prefix_ senf::ppi::connector::GenericActiveOutput &
+senf::ppi::connector::GenericActiveOutputJack::connector()
+{
+    return output_;
+}
+
+prefix_ senf::ppi::connector::GenericPassiveInputJack::
+GenericPassiveInputJack(GenericPassiveInput & input)
+    : input_ (input)
+{}
+
+prefix_ senf::ppi::connector::GenericPassiveInput &
+senf::ppi::connector::GenericPassiveInputJack::connector()
+{
+    return input_;
+}
+
+prefix_ senf::ppi::connector::GenericPassiveOutputJack::
+GenericPassiveOutputJack(GenericPassiveOutput & output)
+    : output_ (output)
+{}
+
+prefix_ senf::ppi::connector::GenericPassiveOutput &
+senf::ppi::connector::GenericPassiveOutputJack::connector()
+{
+    return output_;
+}
+
+prefix_ void senf::ppi::connect(connector::GenericActiveOutputJack & source,
+                                connector::GenericPassiveInputJack & target)
+{
+    connect(source.connector(), target.connector());
+}
+
+prefix_ void senf::ppi::connect(connector::GenericPassiveOutputJack & source,
+                                connector::GenericActiveInputJack & target)
+{
+    connect(source.connector(), target.connector());
+}
+
+prefix_ void senf::ppi::connect(connector::GenericActiveOutputJack & source,
+                                connector::GenericPassiveInput & target)
+{
+    connect(source.connector(), target);
+}
+
+prefix_ void senf::ppi::connect(connector::GenericPassiveOutputJack & source,
+                                connector::GenericActiveInput & target)
+{
+    connect(source.connector(), target);
+}
+
+prefix_ void senf::ppi::connect(connector::GenericActiveOutput & source,
+                                connector::GenericPassiveInputJack & target)
+{
+    connect(source, target.connector());
+}
+
+prefix_ void senf::ppi::connect(connector::GenericPassiveOutput & source,
+                                connector::GenericActiveInputJack & target)
+{
+    connect(source, target.connector());
+}
+
+///////////////////////////////cci.e///////////////////////////////////////
+#undef prefix_
+
+
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End:
diff --git a/PPI/Jack.cti b/PPI/Jack.cti
new file mode 100644
index 0000000..220df86
--- /dev/null
+++ b/PPI/Jack.cti
@@ -0,0 +1,145 @@
+// $Id$
+//
+// Copyright (C) 2009 
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//     Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+/** \file
+    \brief Jack inline template implementation */
+
+//#include "Jack.ih"
+
+// Custom includes
+#include "Setup.hh"
+
+#define prefix_ inline
+///////////////////////////////cti.p///////////////////////////////////////
+
+template <class PacketType>
+prefix_ senf::ppi::connector::ActiveInputJack<PacketType>::
+ActiveInputJack(ActiveInput<PacketType> & input)
+    : GenericActiveInputJack (input)
+{}
+
+template <class PacketType>
+prefix_
+senf::ppi::connector::ActiveInputJack<PacketType>::ActiveInputJack(ActiveInput<> & input)
+    : GenericActiveInputJack (input)
+{}
+
+prefix_ senf::ppi::connector::ActiveInputJack<senf::Packet>::ActiveInputJack(ActiveInput<> & input)
+    : GenericActiveInputJack (input)
+{}
+
+template <class PacketType>
+prefix_ senf::ppi::connector::ActiveOutputJack<PacketType>::
+ActiveOutputJack(ActiveOutput<PacketType> & output)
+    : GenericActiveOutputJack (output)
+{}
+
+template <class PacketType>
+prefix_
+senf::ppi::connector::ActiveOutputJack<PacketType>::ActiveOutputJack(ActiveOutput<> & output)
+    : GenericActiveOutputJack (output)
+{}
+
+prefix_
+senf::ppi::connector::ActiveOutputJack<senf::Packet>::ActiveOutputJack(ActiveOutput<> & output)
+    : GenericActiveOutputJack (output)
+{}
+
+template <class PacketType>
+prefix_ senf::ppi::connector::PassiveInputJack<PacketType>::
+PassiveInputJack(PassiveInput<PacketType> & input)
+    : GenericPassiveInputJack (input)
+{}
+
+template <class PacketType>
+prefix_
+senf::ppi::connector::PassiveInputJack<PacketType>::PassiveInputJack(PassiveInput<> & input)
+    : GenericPassiveInputJack (input)
+{}
+
+prefix_
+senf::ppi::connector::PassiveInputJack<senf::Packet>::PassiveInputJack(PassiveInput<> & input)
+    : GenericPassiveInputJack (input) 
+{}
+
+template <class PacketType>
+prefix_ senf::ppi::connector::PassiveOutputJack<PacketType>::
+PassiveOutputJack(PassiveOutput<PacketType> & output)
+    : GenericPassiveOutputJack (output)
+{}
+
+template <class PacketType>
+prefix_ senf::ppi::connector::PassiveOutputJack<PacketType>::
+PassiveOutputJack(PassiveOutput<> & output)
+    : GenericPassiveOutputJack (output)
+{}
+
+prefix_
+senf::ppi::connector::PassiveOutputJack<senf::Packet>::PassiveOutputJack(PassiveOutput<> & output)
+    : GenericPassiveOutputJack (output)
+{}
+
+template <class T>
+prefix_ void
+senf::ppi::connect(connector::GenericActiveOutputJack & source, T & target,
+                   typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type *)
+{
+    connect(source.connector(), target);
+}
+
+template <class T>
+prefix_ void
+senf::ppi::connect(connector::GenericPassiveOutputJack & source, T & target,
+                   typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type *)
+{
+    connect(source.connector(), target);
+}
+
+template <class T>
+prefix_ void
+senf::ppi::connect(T & source, connector::GenericActiveInputJack & target,
+                   typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type *)
+{
+    connect(source, target.connector());
+}
+
+template <class T>
+prefix_ void
+senf::ppi::connect(T & source, connector::GenericPassiveInputJack & target,
+                   typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type *)
+{
+    connect(source, target.connector());
+}
+
+///////////////////////////////cti.e///////////////////////////////////////
+#undef prefix_
+
+
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End:
diff --git a/PPI/Jack.hh b/PPI/Jack.hh
new file mode 100644
index 0000000..5cfbc12
--- /dev/null
+++ b/PPI/Jack.hh
@@ -0,0 +1,227 @@
+// $Id$
+//
+// Copyright (C) 2009 
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//     Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+/** \file
+    \brief Jack public header */
+
+#ifndef HH_SENF_PPI_Jack_
+#define HH_SENF_PPI_Jack_ 1
+
+// Custom includes
+#include <boost/utility.hpp>
+#include <boost/type_traits.hpp>
+#include "Connectors.hh"
+
+//#include "Jack.mpp"
+///////////////////////////////hh.p////////////////////////////////////////
+
+namespace senf {
+namespace ppi {
+namespace connector {
+
+    class Jack
+        : private boost::noncopyable
+    {};
+
+    class GenericActiveInputJack
+        : public Jack
+    {
+    public:
+        explicit GenericActiveInputJack(GenericActiveInput & input);
+
+        GenericActiveInput & connector();
+
+    private:
+        GenericActiveInput & input_;
+    };
+
+    class GenericActiveOutputJack
+        : public Jack
+    {
+    public:
+        explicit GenericActiveOutputJack(GenericActiveOutput & output);
+
+        GenericActiveOutput & connector();
+
+    private:
+        GenericActiveOutput & output_;
+    };
+
+    class GenericPassiveInputJack
+        : public Jack
+    {
+    public:
+        explicit GenericPassiveInputJack(GenericPassiveInput & input);
+
+        GenericPassiveInput & connector();
+
+    private:
+        GenericPassiveInput & input_;
+    };
+    
+    class GenericPassiveOutputJack
+        : public Jack
+    {
+    public:
+        explicit GenericPassiveOutputJack(GenericPassiveOutput & output);
+
+        GenericPassiveOutput & connector();
+
+    private:
+        GenericPassiveOutput & output_;
+    };
+
+    template <class PacketType=Packet>
+    class ActiveInputJack
+        : public GenericActiveInputJack
+    {
+    public:
+        explicit ActiveInputJack(ActiveInput<PacketType> & input);
+        explicit ActiveInputJack(ActiveInput<> & input);
+    };
+
+#ifndef DOXYGEN
+
+    template <>
+    class ActiveInputJack<Packet>
+        : public GenericActiveInputJack
+    {
+    public:
+        explicit ActiveInputJack(ActiveInput<> & input);
+    };
+
+#endif
+
+    template <class PacketType=Packet>
+    class ActiveOutputJack
+        : public GenericActiveOutputJack
+    {
+    public:
+        explicit ActiveOutputJack(ActiveOutput<PacketType> & output);
+        explicit ActiveOutputJack(ActiveOutput<> & output);
+    };
+
+#ifndef DOXYGEN
+
+    template <>
+    class ActiveOutputJack<Packet>
+        : public GenericActiveOutputJack
+    {
+    public:
+        explicit ActiveOutputJack(ActiveOutput<> & output);
+    };
+
+#endif
+
+    template <class PacketType=Packet>
+    class PassiveInputJack
+        : public GenericPassiveInputJack
+    {
+    public:
+        explicit PassiveInputJack(PassiveInput<PacketType> & input);
+        explicit PassiveInputJack(PassiveInput<> & input);
+    };
+
+#ifndef DOXYGEN
+
+    template <>
+    class PassiveInputJack<Packet>
+        : public GenericPassiveInputJack
+    {
+    public:
+        explicit PassiveInputJack(PassiveInput<> & input);
+    };
+
+#endif
+
+    template <class PacketType=Packet>
+    class PassiveOutputJack
+        : public GenericPassiveOutputJack
+    {
+    public:
+        explicit PassiveOutputJack(PassiveOutput<PacketType> & output);
+        explicit PassiveOutputJack(PassiveOutput<> & output);
+    };
+
+#ifndef DOXYGEN
+
+    template <>
+    class PassiveOutputJack<Packet>
+        : public GenericPassiveOutputJack
+    {
+    public:
+        explicit PassiveOutputJack(PassiveOutput<> & output);
+    };
+
+#endif
+}
+
+#ifndef DOXYGEN
+
+    template <class T>
+    void connect(connector::GenericActiveOutputJack & source, T & target,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type * = 0);
+    template <class T>
+    void connect(connector::GenericPassiveOutputJack & source, T & target,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type * = 0);
+
+    template <class T>
+    void connect(T & source, connector::GenericActiveInputJack & target,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type * = 0);
+    template <class T>
+    void connect(T & source, connector::GenericPassiveInputJack & target,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T> >::type * = 0);
+
+    void connect(connector::GenericActiveOutputJack & source, 
+                 connector::GenericPassiveInputJack & target);
+    void connect(connector::GenericPassiveOutputJack & source, 
+                 connector::GenericActiveInputJack & target);
+
+    void connect(connector::GenericActiveOutputJack & source, 
+                 connector::GenericPassiveInput & target);
+    void connect(connector::GenericPassiveOutputJack & source, 
+                 connector::GenericActiveInput & target);
+
+    void connect(connector::GenericActiveOutput & source, 
+                 connector::GenericPassiveInputJack & target);
+    void connect(connector::GenericPassiveOutput & source, 
+                 connector::GenericActiveInputJack & target);
+
+#endif
+}}
+
+///////////////////////////////hh.e////////////////////////////////////////
+#include "Jack.cci"
+//#include "Jack.ct"
+#include "Jack.cti"
+#endif
+
+
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End:
diff --git a/PPI/Jack.test.cc b/PPI/Jack.test.cc
new file mode 100644
index 0000000..939d485
--- /dev/null
+++ b/PPI/Jack.test.cc
@@ -0,0 +1,147 @@
+// $Id$
+//
+// Copyright (C) 2009 
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//     Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+/** \file
+    \brief Jack.test unit tests */
+
+//#include "Jack.test.hh"
+//#include "Jack.test.ih"
+
+// Custom includes
+#include "PPI.hh"
+
+#include "../Utils/auto_unit_test.hh"
+#include <boost/test/test_tools.hpp>
+
+#define prefix_
+///////////////////////////////cc.p////////////////////////////////////////
+
+namespace {
+
+    class ActiveDummyForward 
+        : public senf::ppi::module::Module
+    {
+        SENF_PPI_MODULE(ActiveDummyForward);
+    public:
+        senf::ppi::connector::ActiveInput<> input;
+        senf::ppi::connector::PassiveOutput<> output;
+
+        ActiveDummyForward()
+            { route(input, output); output.onRequest(&ActiveDummyForward::request); }
+
+    private:
+        void request()
+            { output(input()); }
+    };
+
+    class PassiveDummyForward 
+        : public senf::ppi::module::Module
+    {
+        SENF_PPI_MODULE(PassiveDummyForward);
+    public:
+        senf::ppi::connector::PassiveInput<> input;
+        senf::ppi::connector::ActiveOutput<> output;
+
+        PassiveDummyForward()
+            { route(input, output); input.onRequest(&PassiveDummyForward::request); }
+
+    private:
+        void request()
+            { output(input()); }
+    };
+
+    class ActiveGroup
+    {
+    public:
+        senf::ppi::connector::ActiveInputJack<> input;
+        senf::ppi::connector::PassiveOutputJack<> output;
+
+        ActiveGroup()
+            : input (forward.input), output (forward.output) {}
+
+    private:
+        ActiveDummyForward forward;
+    };
+
+    class PassiveGroup
+    {
+    public:
+        senf::ppi::connector::PassiveInputJack<> input;
+        senf::ppi::connector::ActiveOutputJack<> output;
+
+        PassiveGroup()
+            : input (forward.input), output (forward.output) {}
+        
+    private:
+        PassiveDummyForward forward;
+    };
+
+}
+
+BOOST_AUTO_UNIT_TEST(jacks)
+{
+    {
+        ActiveGroup group;
+        senf::ppi::module::debug::PassiveSource source;
+        senf::ppi::module::debug::ActiveSink sink;
+
+        senf::ppi::connect(source, group);
+        senf::ppi::connect(group, sink);
+        
+        senf::ppi::init();
+        
+        senf::Packet p (senf::DataPacket::create());
+        source.submit(p);
+        
+        BOOST_CHECK(p == sink.request());
+    }
+     
+    {
+        PassiveGroup group;
+        senf::ppi::module::debug::ActiveSource source;
+        senf::ppi::module::debug::PassiveSink sink;
+
+        senf::ppi::connect(source, group);
+        senf::ppi::connect(group, sink);
+
+        senf::ppi::init();
+
+        senf::Packet p (senf::DataPacket::create());
+        source.submit(p);
+
+        BOOST_CHECK(p == sink.front());
+    }
+}
+
+///////////////////////////////cc.e////////////////////////////////////////
+#undef prefix_
+
+
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End:
diff --git a/PPI/Setup.cti b/PPI/Setup.cti
index 30c7ae6..f18f8b4 100644
--- a/PPI/Setup.cti
+++ b/PPI/Setup.cti
@@ -36,7 +36,8 @@ template <class T, class C>
 prefix_ void senf::ppi::
 connect(T & source, C & target,
         typename boost::disable_if< boost::is_base_of<connector::Connector, T> >::type *,
-        typename boost::enable_if< boost::is_base_of<connector::Connector, C> >::type *)
+        typename boost::enable_if< boost::is_base_of<connector::Connector, C> >::type *,
+        typename boost::disable_if< boost::is_base_of<connector::Jack, T> >:: type *)
 {
     connect(source.output, target);
 }
@@ -45,7 +46,8 @@ template <class C, class T>
 prefix_ void senf::ppi::
 connect(C & source, T & target,
         typename boost::enable_if< boost::is_base_of<connector::Connector, C> >::type *,
-        typename boost::disable_if< boost::is_base_of<connector::Connector,T> >::type *)
+        typename boost::disable_if< boost::is_base_of<connector::Connector,T> >::type *,
+        typename boost::disable_if< boost::is_base_of<connector::Jack, T> >:: type *)
 {
     connect(source, target.input);
 }
@@ -54,7 +56,9 @@ template <class T1, class T2>
 prefix_ void senf::ppi::
 connect(T1 & source, T2 & target,
         typename boost::disable_if< boost::is_base_of<connector::Connector, T1> >::type *,
-        typename boost::disable_if< boost::is_base_of<connector::Connector, T2> >::type *)
+        typename boost::disable_if< boost::is_base_of<connector::Connector, T2> >::type *,
+        typename boost::disable_if< boost::is_base_of<connector::Jack, T1> >:: type *,
+        typename boost::disable_if< boost::is_base_of<connector::Jack, T2> >:: type *)
 {
     connect(source.output, target.input);
 }
diff --git a/PPI/Setup.hh b/PPI/Setup.hh
index 1c42c0e..7ca5068 100644
--- a/PPI/Setup.hh
+++ b/PPI/Setup.hh
@@ -76,17 +76,21 @@ namespace ppi {
     template <class T, class C>
     void connect(T & source, C & target,
                  typename boost::disable_if< boost::is_base_of<connector::Connector, T> >::type * = 0,
-                 typename boost::enable_if< boost::is_base_of<connector::Connector, C> >::type * = 0);
+                 typename boost::enable_if< boost::is_base_of<connector::Connector, C> >::type * = 0,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T> >:: type * = 0);
 
     template <class C, class T>
     void connect(C & source, T & target,
                  typename boost::enable_if< boost::is_base_of<connector::Connector, C> >::type * = 0,
-                 typename boost::disable_if< boost::is_base_of<connector::Connector,T> >::type * = 0);
+                 typename boost::disable_if< boost::is_base_of<connector::Connector,T> >::type * = 0,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T> >:: type * = 0);
 
     template <class T1, class T2>
     void connect(T1 & source, T2 & target,
                  typename boost::disable_if< boost::is_base_of<connector::Connector, T1> >::type * = 0,
-                 typename boost::disable_if< boost::is_base_of<connector::Connector, T2> >::type * = 0);
+                 typename boost::disable_if< boost::is_base_of<connector::Connector, T2> >::type * = 0,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T1> >:: type * = 0,
+                 typename boost::disable_if< boost::is_base_of<connector::Jack, T2> >:: type * = 0);
 
 #endif
     
diff --git a/PPI/predecl.hh b/PPI/predecl.hh
index 81094eb..e5b1091 100644
--- a/PPI/predecl.hh
+++ b/PPI/predecl.hh
@@ -90,6 +90,8 @@ namespace ppi {
         template <class PacketType=Packet> class ActiveInput;
         template <class PacketType=Packet> class ActiveOutput;
 
+        class Jack;
+
 #ifndef DOXYGEN
 
         namespace detail {