X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=schedule.cc;h=1791605b7c38842c37d11553c37f663c9dc88c38;hb=247e28f81f258c3c380be00a89430186f8ac11ed;hp=691c6f43088595300ac198783328d4b102c8b0f4;hpb=517d8ce6cc880bb523ee55005afdcad1ec551e64;p=model-checker.git

diff --git a/schedule.cc b/schedule.cc
index 691c6f4..1791605 100644
--- a/schedule.cc
+++ b/schedule.cc
@@ -3,24 +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());
-	queue.push(t);
+	readyList.push_back(t);
 }
 
-Thread *Scheduler::next_thread(void)
+void Scheduler::remove_thread(Thread *t)
 {
-	if (queue.empty())
-		return NULL;
+	if (current == t)
+		current = NULL;
+	else
+		readyList.remove(t);
+}
 
-	current = queue.front();
-	queue.pop();
+Thread * Scheduler::next_thread(void)
+{
+	Thread *t = model->schedule_next_thread();
 
-	return current;
+	if (t != NULL) {
+		current = t;
+		readyList.remove(t);
+	} else if (readyList.empty()) {
+		t = NULL;
+	} else {
+		t = readyList.front();
+		current = t;
+		readyList.pop_front();
+	}
+
+	print();
+
+	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());
+}