moved statistics classes from NetEmu to SENF

[senf.git] / PPI / Connectors.cci

diff --git a/PPI/Connectors.cci b/PPI/Connectors.cci
index 1680902..3f24b5d 100644 (file)
--- a/PPI/Connectors.cci
+++ b/PPI/Connectors.cci
@@ -1,8 +1,8 @@
 // $Id$
 //
-// Copyright (C) 2007 
-// Fraunhofer Institute for Open Communication Systems (FOKUS) 
-// Competence Center NETwork research (NET), St. Augustin, GERMANY 
+// Copyright (C) 2007
+// 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
@@ -24,6 +24,7 @@
     \brief Connectors inline non-template implementation */
 
 // Custom includes
+#include "../Utils/TypeInfo.hh"
 #include "../Utils/senfassert.hh"
 
 #define prefix_ inline
@@ -35,6 +36,7 @@
 prefix_ senf::ppi::connector::Connector & senf::ppi::connector::Connector::peer()
     const
 {
+    // The connector is not connected
     SENF_ASSERT(peer_);
     return *peer_;
 }
@@ -42,6 +44,8 @@ prefix_ senf::ppi::connector::Connector & senf::ppi::connector::Connector::peer(
 prefix_ senf::ppi::module::Module & senf::ppi::connector::Connector::module()
     const
 {
+    // The connector is not registered in the module -> probably a route() or noroute() statement is
+    // missing.
     SENF_ASSERT(module_);
     return *module_;
 }
@@ -55,15 +59,17 @@ prefix_ senf::ppi::connector::Connector::Connector()
 
 prefix_ senf::ppi::connector::Connector::~Connector()
 {
-    if (peer_)
+    if (connected()) {
+        Connector & peer (*peer_);
         peer_->peer_ = 0;
+        peer.v_init();
+    }
 }
 
-prefix_ void senf::ppi::connector::Connector::connect(Connector & target)
+prefix_ bool senf::ppi::connector::Connector::connected()
+    const
 {
-    SENF_ASSERT( ! peer_ && ! target.peer_ );
-    peer_ = & target;
-    target.peer_ = this;
+    return peer_;
 }
 
 ////////////////////////////////////////
@@ -77,12 +83,52 @@ prefix_ void senf::ppi::connector::Connector::setModule(module::Module & module)
 ///////////////////////////////////////////////////////////////////////////
 // senf::ppi::connector::PassiveConnector
 
+prefix_ senf::ppi::connector::ActiveConnector & senf::ppi::connector::PassiveConnector::peer()
+    const
+{
+    return dynamic_cast<ActiveConnector&>(Connector::peer());
+}
+
 prefix_ bool senf::ppi::connector::PassiveConnector::throttled()
     const
 {
     return nativeThrottled_ || remoteThrottled_;
 }
 
+////////////////////////////////////////
+// private members
+
+prefix_ void senf::ppi::connector::PassiveConnector::emitThrottle()
+{
+    if (connected())
+        peer().notifyThrottle();
+}
+
+prefix_ void senf::ppi::connector::PassiveConnector::emitUnthrottle()
+{
+    if (connected()) {
+        peer().notifyUnthrottle();
+        v_unthrottleEvent();
+    }
+}
+
+prefix_ void senf::ppi::connector::PassiveConnector::notifyThrottle()
+{
+    if (!throttled()) {
+        remoteThrottled_ = true;
+        emitThrottle();
+    }
+    else
+        remoteThrottled_ = true;
+}
+
+prefix_ void senf::ppi::connector::PassiveConnector::registerRoute(ForwardingRoute & route)
+{
+    routes_.push_back(&route);
+}
+
+// public members 
+
 prefix_ bool senf::ppi::connector::PassiveConnector::nativeThrottled()
     const
 {
@@ -107,12 +153,6 @@ prefix_ void senf::ppi::connector::PassiveConnector::unthrottle()
 
 }
 
-prefix_ senf::ppi::connector::ActiveConnector & senf::ppi::connector::PassiveConnector::peer()
-    const
-{
-    return dynamic_cast<ActiveConnector&>(Connector::peer());
-}
-
 ////////////////////////////////////////
 // protected members
 
@@ -122,43 +162,12 @@ prefix_ senf::ppi::connector::PassiveConnector::PassiveConnector()
 
 prefix_ void senf::ppi::connector::PassiveConnector::emit()
 {
+    // No event callback has been registered (onEvent() call missing)
     SENF_ASSERT(callback_);
     if (!throttled())
         callback_();
 }
 
-////////////////////////////////////////
-// private members
-
-prefix_ void senf::ppi::connector::PassiveConnector::notifyThrottle()
-{
-    if (!throttled()) {
-        remoteThrottled_ = true;
-        emitThrottle();
-    } 
-    else 
-        remoteThrottled_ = true;
-}
-
-prefix_ void senf::ppi::connector::PassiveConnector::emitThrottle()
-{
-    peer().notifyThrottle();
-}
-
-prefix_ void senf::ppi::connector::PassiveConnector::emitUnthrottle()
-{
-    peer().notifyUnthrottle();
-    v_unthrottleEvent();
-}
-
-prefix_ void senf::ppi::connector::PassiveConnector::v_unthrottleEvent()
-{}
-
-prefix_ void senf::ppi::connector::PassiveConnector::registerRoute(ForwardingRoute & route)
-{
-    routes_.push_back(&route);
-}
-
 ///////////////////////////////////////////////////////////////////////////
 // senf::ppi::connector::ActiveConnector
 
@@ -181,14 +190,14 @@ prefix_ void senf::ppi::connector::ActiveConnector::onUnthrottle()
 prefix_ bool senf::ppi::connector::ActiveConnector::throttled()
     const
 {
-    return peer().throttled();
+    return ! connected() || peer().throttled();
 }
 
 ////////////////////////////////////////
 // protected members
 
 prefix_ senf::ppi::connector::ActiveConnector::ActiveConnector()
-    : throttleCallback_(), unthrottleCallback_(), notifyRoutes_()
+    : throttleCallback_(), unthrottleCallback_(), notifyRoutes_(), throttled_(false)
 {}
 
 ///////////////////////////////////////////////////////////////////////////
@@ -222,6 +231,7 @@ senf::ppi::connector::InputConnector::end()
 prefix_ senf::Packet senf::ppi::connector::InputConnector::peek()
     const
 {
+    // Cannot peek() head of empty queue
     SENF_ASSERT( ! queue_.empty() );
     return queue_.back();
 }
@@ -248,7 +258,7 @@ prefix_ senf::ppi::connector::InputConnector::InputConnector()
 ////////////////////////////////////////
 // private members
 
-prefix_ void senf::ppi::connector::InputConnector::enqueue(Packet p)
+prefix_ void senf::ppi::connector::InputConnector::enqueue(Packet const & p)
 {
     queue_.push_front(p);
     v_enqueueEvent();
@@ -257,20 +267,21 @@ prefix_ void senf::ppi::connector::InputConnector::enqueue(Packet p)
 ///////////////////////////////////////////////////////////////////////////
 // senf::ppi::connector::OutputConnector
 
-prefix_ void senf::ppi::connector::OutputConnector::operator()(Packet p)
+prefix_ senf::ppi::connector::InputConnector & senf::ppi::connector::OutputConnector::peer()
+    const
 {
-    peer().enqueue(p);
+    return dynamic_cast<InputConnector&>(Connector::peer());
 }
 
-prefix_ void senf::ppi::connector::OutputConnector::write(Packet p)
+prefix_ void senf::ppi::connector::OutputConnector::operator()(Packet const & p)
 {
-    operator()(p);
+    if (connected())
+        peer().enqueue(p);
 }
 
-prefix_ senf::ppi::connector::InputConnector & senf::ppi::connector::OutputConnector::peer()
-    const
+prefix_ void senf::ppi::connector::OutputConnector::write(Packet const & p)
 {
-    return dynamic_cast<InputConnector&>(Connector::peer());
+    operator()(p);
 }
 
 ////////////////////////////////////////
@@ -333,12 +344,13 @@ prefix_ senf::ppi::connector::GenericPassiveOutput & senf::ppi::connector::Gener
 prefix_ bool senf::ppi::connector::GenericActiveInput::boolean_test()
     const
 {
-    return ! empty() || ! peer().throttled();
+    return ! empty() || (connected() && ! peer().throttled());
 }
 
 prefix_ void senf::ppi::connector::GenericActiveInput::request()
 {
-    peer().emit();
+    if (connected())
+        peer().emit();
 }
 
 prefix_ senf::ppi::connector::GenericActiveInput::GenericActiveInput()
@@ -356,7 +368,7 @@ prefix_ senf::ppi::connector::GenericPassiveInput & senf::ppi::connector::Generi
 prefix_ bool senf::ppi::connector::GenericActiveOutput::boolean_test()
     const
 {
-    return ! peer().throttled();
+    return connected() && ! peer().throttled();
 }
 
 prefix_ void senf::ppi::connector::GenericActiveOutput::connect(GenericPassiveInput & target)