1 files changed, 24 insertions, 0 deletions
diff --git a/src/kernel/task/sched.c b/src/kernel/task/sched.c
new file mode 100644
index 0000000..d2a4c5b
--- /dev/null
+++ b/src/kernel/task/sched.c
@@ -0,0 +1,24 @@
+#include "sched.h"
+#include <core/sys.h>
+#include <mem/mem.h>
+
+static struct thread *queue = 0, *last = 0;
+
+void sched_enqueue(struct thread *t) {
+	t->queue_next = 0;
+	if (queue == 0) {
+		queue = last = t;
+	} else {
+		last->queue_next = t;
+		last = t;
+	}
+}
+
+struct thread *sched_dequeue() {
+	if (queue == 0) return 0;
+	struct thread *it = queue;
+	ASSERT((it->queue_next == 0 && it == last) || it != last);
+	queue = it->queue_next;
+	if (queue == 0) last = 0;
+	return it;
+}