- added few frontend classes

- updated others from backend

git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@330 3ecf2c5c-341e-0410-92b4-d18e462d057c

src/Makefile.am

@@ -54,13 +54,17 @@ sgpemv2_SOURCES = \
 	main_window.cc \
 	observer.cc \
 	parse_opts.cc \
+	simulation.cc \
+	standard_io.cc \	
 	start_gui.cc
 
 noinst_HEADERS = \
+	graphical_terminal_io.hh \
 	io_manager.hh \
 	main.hh \
 	main_window.hh \
 	observer.hh \
-	start_gui.hh \
+	parse_opts.hh \
-	graphical_terminal_io.hh \
+	simulation.hh \
-	parse_opts.hh
+	standard_io.hh \
+	start_gui.hh

src/backend/history.cc

@@ -56,7 +56,7 @@ History::get_scheduled_at(int time) const
   //look for a runing entity
   smart_ptr<const SchedulableList> p = get_simulation_status_at(time);
   
-  for (int i = 0; i < p->size(); i++)
+  for (uint i = 0; i < p->size(); i++)
 	  if (p->get_item_at(i)->get_state() == SchedulableStatus::state_running)
 		  return smart_ptr<const SchedulableStatus>(new SchedulableStatus(*(p->get_item_at(i))));
   
@@ -138,8 +138,9 @@ History::truncate_at(int instant)
 			  //replaces the current vector with the "trimmed" one.
 			_slices = vector<Slice>(_slices.begin(),i);
 			_total_time_elapsed = instant;
-			return;			
+			break;			
 		}
+	notify();
 }
 
 

src/backend/policy.hh

@@ -49,6 +49,7 @@ namespace sgpem
 		virtual bool 			is_pre_emptive() const = 0;
 		virtual int				get_time_slice() const = 0;
 		virtual void 			set_time_slice(const int&) = 0;
+		
 		const PolicyParameters& get_parameters() const;
 		
 		

src/backend/python_policy.cc

@@ -24,17 +24,4 @@ using namespace std;
 
 PythonPolicy::PythonPolicy()
 {
-	// The following line is ugly, but necessary if we use 
-	// non-standard installation directories. Theoretically,
-	// it should be up to the user to set correct 
-	// environment variables. 
-	// FIXME: find better way to achieve this.
-	//PyRun_SimpleString("import sys\n"
-		//	"sys.path[:0] = [ '" MODDIR "', '" PYCDIR "' ]\n"
-			//"print '[II] Module search path is :', sys.path\n");
-	
-	const char* filename = PYCDIR "/loadme.py";
-	cout << filename;
-	cout.flush();
 }
-

src/backend/python_policy_manager.cc

@@ -47,6 +47,20 @@ void
 PythonPolicyManager::init()
 {
 	Py_Initialize();
+		
+	// The following line is ugly, but necessary if we use 
+	// non-standard installation directories. Theoretically,
+	// it should be up to the user to set correct 
+	// environment variables. 
+	// FIXME: find better way to achieve this.
+
+	PyRun_SimpleString("import sys\n"
+			"sys.path[:0] = [ '" MODDIR "', '" PYCDIR "' ]\n"
+			"print '[II] Module search path is :', sys.path\n");
+	
+	const char* filename = PYCDIR "/loadme.py";
+	std::cout << "\n\n" << filename;
+	std::cout.flush();
 }
 
 

src/backend/scheduler.cc

@@ -45,6 +45,7 @@ Scheduler::get_ready_queue()
 	return &_ready_queue;	
 }
 
+
 /** \note E' fondamentale che questo metodo memorizzi localmente qualora la politica 
 	attuale sia a prerilascio o meno, e la durata del quanto di tempo, in quanto la politica
 	e' libera di variare questi parametri a piacere durante l'esecuzione della simulazione
@@ -57,6 +58,19 @@ Scheduler::reset_status()
 	// restore the policy
 }
 
+void
+Scheduler::set_policy(Policy* p)
+{
+	_policy = p;
+}
+
+
+Policy*
+Scheduler::get_policy()
+{
+	return _policy;
+}
+
 
 void
 Scheduler::step_forward()
@@ -146,6 +160,3 @@ Scheduler::step_forward()
 
 
 
-
-
-

src/backend/scheduler.hh

@@ -56,6 +56,9 @@ namespace sgpem
 		SchedulableList*			get_ready_queue();
 		void 						reset_status();
 		void 						step_forward();
+		void						set_policy(Policy*);
+		Policy* 					get_policy();
+				
 		
 	private:
 		Scheduler(int);					//private constructor. The parameter is discarded

src/graphical_terminal_io.cc

@@ -61,7 +61,7 @@ GraphicalTerminalIO::GraphicalTerminalIO()
 GraphicalTerminalIO::~GraphicalTerminalIO() 
 {}
 
-GraphicalTerminalIO::size_type  
+uint 
 GraphicalTerminalIO::write_buffer(const Glib::ustring& buffer)
 {
   _text_output.get_buffer()->insert_at_cursor(buffer);
@@ -69,7 +69,7 @@ GraphicalTerminalIO::write_buffer(const Glib::ustring& buffer)
 }
 
 Glib::ustring
-GraphicalTerminalIO::read_command() const 
+GraphicalTerminalIO::read_command() 
 {
   using Glib::ustring;
   static const ustring whitespaces = " \r\b\n\t\a";
@@ -78,8 +78,8 @@ GraphicalTerminalIO::read_command() const
   ustring command = _text_input.get_text();
   
   // trimming:
-  size_type f = command.find_first_not_of(whitespaces);
+  uint f = command.find_first_not_of(whitespaces);
-  size_type l = command.find_last_not_of(whitespaces);
+  uint l = command.find_last_not_of(whitespaces);
   if(f == ustring::npos)
     return 0;
   

src/graphical_terminal_io.hh

@@ -45,13 +45,13 @@ namespace sgpem {
    * ... long desc ... */
   class GraphicalTerminalIO : public IOManager, public Gtk::Window
   {
-    typedef unsigned int size_type;
+    
   public:
     GraphicalTerminalIO();
     virtual ~GraphicalTerminalIO();
     
-    virtual size_type     write_buffer(const Glib::ustring& buffer);
+    virtual uint			write_buffer(const Glib::ustring& buffer);
-    virtual Glib::ustring read_command() const;
+    virtual Glib::ustring 	read_command();
   private:
     Gtk::TextView         _text_output;
     mutable Gtk::Entry    _text_input;

src/io_manager.hh

@@ -28,23 +28,19 @@
 
 namespace sgpem {
 
-  // ---------------------------------------------
     
   class IOManager;
     
-  // ---------------------------------------------
+  /**
   
-  /** \brief 
+  */
-   * 
-   * ... long desc ... */
   class IOManager 
   {    
-    typedef unsigned int size_type;
   public:
     virtual ~IOManager() {}
     
-    virtual size_type      write_buffer(const Glib::ustring& buffer) = 0;
+    virtual uint			write_buffer(const Glib::ustring& buffer) = 0;
-    virtual Glib::ustring  read_command() const = 0;
+    virtual Glib::ustring	read_command() = 0;
   };
 
 }

src/main.cc

@@ -36,6 +36,10 @@
 #include "backend/policy_parameters.hh"
 #include "backend/python_policy.hh"
 #include "backend/python_policy_manager.hh"
+#include "standard_io.hh"
+
+#include <glibmm/timer.h>
+#include <glibmm/ustring.h>
 
 #include <iostream>
 #include <string>
@@ -66,9 +70,14 @@ main(int argc, char* argv[])
     filenames.insert(filenames.begin(), a_ptr, a_ptr+a_count);
   }
   */
-  start_gui(argc, argv);
+  //start_gui(argc, argv);
   
-  PythonPolicyManager p = PythonPolicyManager::get_instance();
+  PythonPolicyManager& p = PythonPolicyManager::get_instance();
+  p.init();
+  StandardIO io;
+  io.write_buffer("\nciao!!");
+  ustring ss = io.read_command();
+  cout << "\n\n\n" << ss;
 		  
   //SMOKE-TEST for backend classes
  /* cout << "\n\n********************************";  

src/simulation.cc

@@ -0,0 +1,180 @@
+// src/backend/simulation.cc - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+#include "simulation.hh"
+
+using namespace std;
+using namespace sgpem;
+using namespace memory;
+using Glib::usleep;
+
+Simulation::Simulation(): _state(state_paused), _mode(false), _timer_interval(1000)
+{
+}
+
+void 
+Simulation::set_timer(const int& t)
+{
+	_timer_interval = t;
+}
+
+int 
+Simulation::get_timer() const
+{
+	return _timer_interval;
+}
+
+void 	
+Simulation::set_mode(const bool& b)
+{
+	_mode = b;
+}
+
+bool
+Simulation::get_mode() const
+{
+	return _mode;
+}
+
+void
+Simulation::pause()
+{
+	_state = state_paused;
+}
+
+void
+Simulation::stop()
+{
+	_state = state_stopped;
+}
+
+void
+Simulation::reset()
+{
+	_state = state_paused;
+	History::get_instance().truncate_at(0);
+}
+
+void
+Simulation::run()
+{
+	History& h = History::get_instance();
+	
+	if (_state == state_stopped)
+		h.truncate_at(0);	
+	
+	_state = state_running;
+	
+	//*******  CONTINUOUS TIME
+	if (_mode)
+	{	
+	loop:			
+		// chech for termination
+		bool all_term = true;
+		smart_ptr<const SchedulableList> left = h.get_simulation_status_at(h.get_current_time());
+		for(uint i = 0; i < left->size(); i++)
+			if (left->get_item_at(i)->get_state() != SchedulableStatus::state_terminated)
+			{
+				all_term = true;
+				break;
+			}
+		
+		//if there are no processes left the termination message has already been notified
+		//by the last execution of upadate()
+		if (all_term)
+		{
+			_state = state_paused;
+			return;
+		}
+		
+		//step forward
+		Scheduler::get_instance().step_forward();
+		
+		//sleep
+		Glib::usleep(_timer_interval*1000);
+		
+		//check the state
+		if (_state == state_stopped || _state == state_paused)
+			return;
+		
+		goto loop;		
+	}
+	
+	//******* STEP by STEP
+	else
+	{				
+		// chech for termination
+		bool all_term = true;
+		smart_ptr<const SchedulableList> left = h.get_simulation_status_at(h.get_current_time());
+		for(uint i = 0; i < left->size(); i++)
+			if (left->get_item_at(i)->get_state() != SchedulableStatus::state_terminated)
+		{
+			all_term = true;
+			break;
+		}
+		
+		if (all_term)
+			//if there are no processes left the termination message has already been notified
+			//by the last execution of upadate()
+			_state = state_paused;
+		else
+			//step forward
+			Scheduler::get_instance().step_forward();		
+	}
+	
+}
+
+
+void
+Simulation::jump_to(const uint& where)
+{
+	//jump to position 0
+	reset();
+	bool old = _mode;
+	_mode = false;
+	
+	// executes "where" steps
+	for (uint i=0; i < where; i++)
+		run();
+	
+	_state = state_paused;
+	_mode = old;
+}
+
+void
+Simulation::set_policy(Policy* p)
+{
+	Scheduler::get_instance().set_policy(p);
+}
+
+
+Policy*
+Simulation::get_policy()
+{
+	return Scheduler::get_instance().get_policy();
+}
+
+vector<Policy*>
+Simulation::get_avaiable_policies()
+{
+	vector<Policy*> v;
+	v.push_back(Scheduler::get_instance().get_policy());
+	return v;
+}

src/simulation.hh

@@ -0,0 +1,78 @@
+// src/frontend/simulation.hh - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+#ifndef SIMULATION_HH
+#define SIMULATION_HH 1
+
+#include "config.h"
+
+#include <glibmm/timer.h>
+
+#include "observer.hh"
+#include "backend/policy.hh"
+#include "backend/history.hh"
+#include "backend/scheduler.hh"
+
+namespace sgpem
+{
+  class Simulation;
+
+  /** 
+  
+	*/	
+	class SG_DLLEXPORT Simulation : public Observer
+	{
+	public:
+		enum state
+		{
+			state_running,
+			state_paused,
+			state_stopped
+		};
+		
+		Simulation();
+		
+		void 	run();
+		void 	pause();
+		void 	stop();
+		void 	reset();
+		void	jump_to(const uint&);
+				
+		void 	set_timer(const int&);
+		int		get_timer() const;
+		void 	set_mode(const bool&);
+		bool 	get_mode() const;		
+		
+		void	set_policy(Policy*);
+		Policy* get_policy();
+		std::vector<Policy*> get_avaiable_policies();
+		
+		
+	private:
+		state 	_state;
+		bool 	_mode;
+		int 	_timer_interval;
+		
+	};
+  
+}
+
+
+#endif

src/standard_io.cc

@@ -0,0 +1,43 @@
+// src/standard_io.cc - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+#include "standard_io.hh"
+
+using namespace std;
+using namespace sgpem;
+using Glib::ustring;
+
+uint
+StandardIO::write_buffer(const ustring& buffer)
+{
+	cout << buffer;
+	if (cout.good())
+		return buffer.length();
+	else
+		return 0;
+}
+
+ustring
+StandardIO::read_command()
+{
+	ustring i;
+	cin >>i;
+	return i;
+}

src/standard_io.hh

@@ -0,0 +1,50 @@
+// src/standard_io.hh - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+#ifndef STANDARD_IO_HH
+#define STANDARD_IO_HH 1
+
+#include "config.h"
+#include "gettext.h"
+
+#include <iostream>
+#include <glibmm/ustring.h>
+
+#include "io_manager.hh"
+
+namespace sgpem {
+
+    
+  class StandardIO;
+    
+  /**
+  
+  */
+  class StandardIO : public IOManager 
+  {
+   public:
+	    
+    uint 			write_buffer(const Glib::ustring& buffer);
+    Glib::ustring	read_command();
+  };
+
+}
+
+#endif

src/text_simulation.hh

@@ -0,0 +1,48 @@
+// src/backend/text_simulation.hh - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+#ifndef TEXT_SIMULATION_HH
+#define TEXT_SIMULATION_HH 1
+
+#include "config.h"
+
+#include "simulation.hh"
+
+
+
+
+namespace sgpem
+{
+	class TextSimulation;
+
+  /** 
+  
+   */	
+	class SG_DLLEXPORT TextSimulation : public Simulation
+	{
+		public:
+	
+		
+	};
+  
+}
+
+
+#endif