X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=schedule.cc;h=1791605b7c38842c37d11553c37f663c9dc88c38;hb=bdef0741b8a01e16946d261bc2a657af5a683b3e;hp=13b640cd8e832b2cca826e5a4b68d66143bb854c;hpb=94c12b28e9afeed050f40c3d2d625fa0e22f0387;p=model-checker.git

diff --git a/schedule.cc b/schedule.cc
index 13b640c..1791605 100644
--- a/schedule.cc
+++ b/schedule.cc
@@ -3,30 +3,59 @@
 #include "common.h"
 #include "model.h"
 
+Scheduler::Scheduler() :
+	current(NULL)
+{
+}
+
 void Scheduler::add_thread(Thread *t)
 {
 	DEBUG("thread %d\n", t->get_id());
 	readyList.push_back(t);
 }
 
-Thread *Scheduler::next_thread(void)
+void Scheduler::remove_thread(Thread *t)
+{
+	if (current == t)
+		current = NULL;
+	else
+		readyList.remove(t);
+}
+
+Thread * Scheduler::next_thread(void)
 {
 	Thread *t = model->schedule_next_thread();
 
 	if (t != NULL) {
+		current = t;
 		readyList.remove(t);
-		return t;
+	} else if (readyList.empty()) {
+		t = NULL;
+	} else {
+		t = readyList.front();
+		current = t;
+		readyList.pop_front();
 	}
-	if (readyList.empty())
-		return NULL;
 
-	current = readyList.front();
-	readyList.pop_front();
+	print();
 
-	return current;
+	return t;
 }
 
-Thread *Scheduler::get_current_thread(void)
+Thread * Scheduler::get_current_thread(void)
 {
 	return current;
 }
+
+void Scheduler::print()
+{
+	if (current)
+		DEBUG("Current thread: %d\n", current->get_id());
+	else
+		DEBUG("No current thread\n");
+	DEBUG("Num. threads in ready list: %zu\n", readyList.size());
+
+	std::list<Thread *, MyAlloc< Thread * > >::iterator it;
+	for (it = readyList.begin(); it != readyList.end(); it++)
+		DEBUG("In ready list: thread %d\n", (*it)->get_id());
+}