- Let the user disable the new GCC 4.0 visibility support

from configure. This is mainly there for buggy compilers / binutils.


git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@715 3ecf2c5c-341e-0410-92b4-d18e462d057c

src/backend/scheduler.cc

@@ -29,7 +29,9 @@
 
 #include <glibmm/thread.h>
 
+#include <cassert>
 #include <memory>
+
 using namespace std;
 using namespace sgpem;
 
@@ -56,6 +58,22 @@ collect_threads(const std::vector<Process*>& procs,
     }
 }
 
+static void prepare_ready_queue(ConcreteEnvironment&         snapshot, 
+																std::vector<DynamicThread*>& all_threads)
+{
+	typedef std::vector<DynamicThread*> Threads;
+	ReadyQueue& queue = snapshot.get_sorted_queue();
+	assert(queue.size() == 0);
+	for(Threads::const_iterator it = all_threads.begin(); 
+			it != all_threads.end(); it++)
+		{
+			if((*it)->get_state() == Schedulable::state_ready)
+				all_threads.push_back(*it);
+		}
+}
+
+
+
 // ---------------------------------------------------------
 
 
@@ -201,8 +219,7 @@ Scheduler::step_forward(History& history, Policy& cpu_policy) throw(UserInterrup
 	// (is it visible enough for you?)
 
  
-	ReadyQueue& ready_queue = new_snapshot->get_sorted_queue();
-	prepare_ready_queue(ready_queue);
+	prepare_ready_queue(*new_snapshot, all_threads);
 	try
 		{
 			// Temporarily set the _ready_queue param and the _policy one for 
@@ -210,7 +227,6 @@ Scheduler::step_forward(History& history, Policy& cpu_policy) throw(UserInterrup
 			_policy = &cpu_policy;
 			_ready_queue = &new_snapshot->get_sorted_queue();
 			
-
 			// ?. Use the policy to sort the queue
 
 			// FIXME: how does it get the queue?
@@ -218,10 +234,11 @@ Scheduler::step_forward(History& history, Policy& cpu_policy) throw(UserInterrup
 		}
 	catch(UserInterruptException& e)
 		{
+			// Reset values that the policy doesn't need anymore
 			_policy      = NULL;
 			_ready_queue = NULL;
-			//              ^^^^^ 
-			//  Do we need to update something else?
+
+			//  Do we need to update/reset something else?
 
 			// Going up unwinding the stack, tell:
 			//    - the user that the policy sucks
@@ -232,14 +249,10 @@ Scheduler::step_forward(History& history, Policy& cpu_policy) throw(UserInterrup
 	// append the new snapshot...
 	// ...and remember to release the auto_ptr!
 	concrete_history.append_new_environment(new_snapshot.release());
+
+	// Reset values that the policy doesn't need anymore
 	_policy      = NULL;
 	_ready_queue = NULL;
 }
 
 
-
-void 
-Scheduler::prepare_ready_queue(ReadyQueue& queue)
-{
-
-}

src/backend/scheduler.hh

@@ -87,9 +87,7 @@ namespace sgpem
     */
     Policy&      get_policy();
 
-  private:
-    void prepare_ready_queue(ReadyQueue& queue);
-    
+  private:    
     Scheduler();     //private constructor.
        
     ReadyQueue*       _ready_queue;