From da8be6861c61a200060a573ac254b2e2d92988bd Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 29 Sep 2009 04:47:09 +0200
Subject: [PATCH] WIP some musing about opening the session interface

---
 src/proc/control/handling-patterns.hpp |  3 +-
 src/proc/control/proc-dispatcher.cpp   | 56 ++++++++++++++++++++++++++
 src/proc/control/proc-dispatcher.hpp   | 12 ++++++
 3 files changed, 69 insertions(+), 2 deletions(-)

diff --git a/src/proc/control/handling-patterns.hpp b/src/proc/control/handling-patterns.hpp
index f4d62cc7b..dc35d7ea4 100644
--- a/src/proc/control/handling-patterns.hpp
+++ b/src/proc/control/handling-patterns.hpp
@@ -47,7 +47,6 @@
 #include "lib/singleton-subclass.hpp"
 #include "proc/control/handling-pattern.hpp"
 #include "proc/control/command-impl.hpp"
-#include "proc/mobject/session.hpp"
 #include "include/lifecycle.h"
 //#include "lib/symbol.hpp"
 
@@ -187,7 +186,7 @@ namespace control {
     }
     
     
-    lumiera::LifecycleHook _schedule (mobject::ON_SESSION_START, &prepareCommandHandlingPatterns);
+    lumiera::LifecycleHook _schedule (lumiera::ON_GLOBAL_INIT, &prepareCommandHandlingPatterns);
   
   } // (END) definition of concrete handling patterns
   
diff --git a/src/proc/control/proc-dispatcher.cpp b/src/proc/control/proc-dispatcher.cpp
index a20fabe90..6d2a8e41c 100644
--- a/src/proc/control/proc-dispatcher.cpp
+++ b/src/proc/control/proc-dispatcher.cpp
@@ -23,6 +23,8 @@
 
 
 #include "proc/control/proc-dispatcher.hpp"
+#include "proc/mobject/session.hpp"
+#include "include/logging.h"
 //#include "proc/mobject/mobject-ref.hpp"
 //#include "proc/mobject/mobject.hpp"
 //#include "proc/mobject/placement.hpp"
@@ -32,7 +34,61 @@
 
 namespace control {
   
+  
+  namespace {
+  
+    /** when session gets ready,
+     *  open the command processing interface.
+     */
+    void
+    activateCommandProcessing()
+    {
+      ProcDispatcher::instance().activate();
+    }
+    
+    
+    lumiera::LifecycleHook _schedule (mobject::ON_SESSION_INIT, &activateCommandProcessing);
+  
+  }
+  
+  /** storage for Singleton access */
+  lumiera::Singleton<ProcDispatcher> ProcDispatcher::instance;
+  
+  
+  
   /** */
+  void
+  ProcDispatcher::activate()
+  {
+    INFO (command, "Session command processing activated.");
+    TODO ("implement command processing queue");
+  }
+  
+  
+  void
+  ProcDispatcher::deactivate()
+  {
+    INFO (command, "Session command interface closed.");
+    TODO ("implement command processing queue");
+  }
+
+  
+  void
+  ProcDispatcher::clear()
+  {
+    if (!empty())
+      WARN (command, "DISCARDING pending Session commands.");
+    TODO ("implement command processing queue");
+  }
+  
+  
+  bool
+  ProcDispatcher::empty()  const
+  {
+    TODO ("implement command processing queue");
+    return true;
+  }
+
   
   
   
diff --git a/src/proc/control/proc-dispatcher.hpp b/src/proc/control/proc-dispatcher.hpp
index 61352bc47..02227d6b2 100644
--- a/src/proc/control/proc-dispatcher.hpp
+++ b/src/proc/control/proc-dispatcher.hpp
@@ -38,6 +38,7 @@
 //#include "pre.hpp"
 //#include "lib/symbol.hpp"
 #include "proc/control/command.hpp"
+#include "lib/singleton.hpp"
 
 //#include <tr1/memory>
 
@@ -56,6 +57,17 @@ namespace control {
     {
       
     public:
+      static lumiera::Singleton<ProcDispatcher> instance;
+      
+      void activate();
+      void deactivate();
+      void clear();
+      
+      
+      /* == diagnostics == */
+      
+//    size_t size() const ;
+      bool empty()  const ;
       
     };
   ////////////////TODO currently just fleshing  out the API....