- Added SETPOLICY and LISTPOLICIES commands to text-based interface

- Fixed a bug preventing registration of managers in PoliciesGatekeeper

git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@634 3ecf2c5c-341e-0410-92b4-d18e462d057c

plugins/pyloader/src/python_policy.cc

@@ -120,6 +120,12 @@ PythonPolicy::get_description() const
 }
 
 
+Glib::ustring
+PythonPolicy::get_name() const
+{
+  return _name;
+}
+
 bool
 PythonPolicy::is_pre_emptive() const throw(UserInterruptException) 
 {

plugins/pyloader/src/python_policy.hh

@@ -63,6 +63,8 @@ namespace sgpem
     */
     Glib::ustring 	        get_description() const;
 
+    Glib::ustring		get_name() const;
+
     /**
     	\returns \c TRUE if the policy is preemptive.
     	\returns \c FALSE if the policy is not preemptive.

plugins/pyloader/src/python_policy_manager.cc

@@ -20,6 +20,7 @@
 
 #include "python_policy_manager.hh"
 #include "global_preferences.hh"
+#include "policies_gatekeeper.hh"
 
 #include <Python.h>
 #include <glibmm/ustring.h>
@@ -82,12 +83,12 @@ PythonPolicyManager::get_instance()
 }
 
 
-Policy&
+// Policy&
-PythonPolicyManager::get_policy()
+// PythonPolicyManager::get_policy()
-{
+// {
-  // FIXME : assumes that _python_policy is always != NULL!
+//   // FIXME : assumes that _python_policy is always != NULL!
-    return *_python_policy;
+//     return *_python_policy;
-}
+// }
 
 
 void
@@ -158,7 +159,10 @@ PythonPolicyManager::collect_policies()
 
 	//FIXME remove me when get_policy is dropped
 	if(policy_name == "fcfs")
+	{
 	  _python_policy = pypolicy;
+	  PoliciesGatekeeper::get_instance().activate_policy(&History::get_instance(), pypolicy);
+	}
       }
     }
   }

plugins/pyloader/src/python_policy_manager.hh

@@ -48,8 +48,9 @@ namespace sgpem
      * In the next milestones it will be possible to manage 
      * more than one, and to retrieve the correct Policy by 
      * passing a unique ID.
+     FIXME depreceated
      */
-    Policy& get_policy();
+    //Policy& get_policy();
 
     /** \brief Initialize the Python interpreter.
      *

plugins/pyloader/src/testsuite/test-python_loader.cc

@@ -44,6 +44,11 @@ public:
   void test_init(const char* policy_name) {
     init();
     _python_policy = new PythonPolicy(policy_name);
+    
+  }
+
+  Policy& get_policy() {
+    return *_python_policy;
   }
 };
 

src/backend/policies_gatekeeper.cc

@@ -57,7 +57,7 @@ PoliciesGatekeeper::register_manager(PolicyManager* manager)
   
   ManagerIterator end = _registered.end();
 
-  if(find(_registered.begin(), end, manager) != end)
+  if(find(_registered.begin(), end, manager) == end)
     _registered.push_back(manager);
 }
 

src/backend/policies_gatekeeper.hh

@@ -43,7 +43,7 @@ namespace sgpem
 
    */
 
-  class PoliciesGatekeeper
+  class SG_DLLEXPORT PoliciesGatekeeper
   {
   public:
     /** \brief Returns the unique instance of this class, conforming to the Singleton pattern.

src/backend/policy.hh

@@ -85,6 +85,8 @@ namespace sgpem
 		 */
 		virtual Glib::ustring get_description() const = 0;
 
+		virtual Glib::ustring get_name() const = 0;
+
 		/**
 		  Tell if this policy is preemptible.
 

src/backend/policy_manager.hh

@@ -55,7 +55,7 @@ namespace sgpem
 	 \return A reference to the policy.
 	 FIXME deprecated
 	 */
-	virtual Policy&		get_policy() = 0;
+	//virtual Policy&		get_policy() = 0;
 
 	/**
 	 Init (or reset if yet initialized) the manager.

src/backend/scheduler.cc

@@ -21,6 +21,7 @@
 #include "policy.hh"
 #include "scheduler.hh"
 #include "policy_manager.hh"
+#include "policies_gatekeeper.hh"
 #include "user_interrupt_exception.hh"
 
 #include <iostream>
@@ -76,7 +77,8 @@ Scheduler::set_policy(Policy* p)
 Policy&
 Scheduler::get_policy()
 {
-  return _policy_manager.get_policy();
+  //return _policy_manager.get_policy();
+  return *PoliciesGatekeeper::get_instance().get_current_policy(&History::get_instance());
 }
 
 

src/text_simulation.cc

@@ -19,6 +19,9 @@
 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 
 #include "backend/string_utils.hh"
+#include "backend/policies_gatekeeper.hh"
+#include "backend/policy_manager.hh"
+#include "backend/history.hh"
 
 #include "text_simulation.hh"
 using namespace std;
@@ -295,6 +298,66 @@ check:
 		}
 		obj->_devices[quale]->write_buffer(obj->get_policy()->get_description());
 	}
+	else if(arguments[param] == "SETPOLICY")
+	{
+		if(show_help)
+		{
+			obj->_devices[quale]->write_buffer(_(
+					"\n-- SetPolicy COMMAND --\nSelects the current applied policy."
+					"Syntax: SetPolicy <name>"));
+			return;
+		}
+	  
+	  
+	  //FIXME assuming only one policy manager is present, but who cares, this 
+	  //is only temporary code...
+	  PolicyManager* manager = PoliciesGatekeeper::get_instance().get_registered()[0];
+
+	  vector<Policy*> available = manager->get_avail_policies(); 
+	  
+
+			obj->_devices[quale]->write_buffer(arguments[1] + "\n");
+	  
+	  for(vector<Policy*>::iterator it = available.begin(); it != available.end(); ++it)
+	  {
+	    if((*it)->get_name().casefold() == arguments[1].casefold())
+	    {
+	      obj->stop();
+	      PoliciesGatekeeper::get_instance().activate_policy(&History::get_instance(), *it);
+	      return;
+	    }
+	  }
+
+
+	  obj->_devices[quale]->write_buffer(_(
+		"\nERROR: no policy found with that name."
+		"\nType HELP SETPOLICY for the description of the sintax"));				
+      
+	}
+	else if(arguments[param] == "LISTPOLICIES")
+	{
+		if(show_help)
+		{
+			obj->_devices[quale]->write_buffer(_(
+					"\n-- ListPolicies COMMAND --\nShows the name of available policies."));
+			return;
+		}
+
+	  //FIXME assuming only one policy manager is present, but who cares, this 
+	  //is only temporary code...
+	  PolicyManager* manager = PoliciesGatekeeper::get_instance().get_registered()[0];
+
+	  vector<Policy*> available = manager->get_avail_policies(); 
+	  
+	  for(vector<Policy*>::iterator it = available.begin(); it != available.end(); ++it)
+	  {
+
+//	    Glib::ustring str;
+//	    int_to_string((int)*it, str);
+//	    obj->_devices[quale]->write_buffer(str + "\n");
+            obj->_devices[quale]->write_buffer("\n" + (*it)->get_name());
+	  }
+	}
 	else if (arguments[param] == "GETPOLICYATTRIBUTES")
 	{	
 		if (show_help)