1 files changed, 36 insertions, 0 deletions
diff --git a/src/schedule.c b/src/schedule.c
index e69de29..e746a7f 100644
--- a/src/schedule.c
+++ b/src/schedule.c
@@ -0,0 +1,36 @@
+// Copyright (c) 2023, Marvin Borner <dev@marvinborner.de>
+// SPDX-License-Identifier: MIT
+
+#include <schedule.h>
+#include <lib/pqueue.h>
+#include <parse.h>
+#include <map.h>
+
+static struct pqueue *queue;
+
+static pqueue_pri_t get_pri(void *a)
+{
+	struct term *term = a;
+	return (parse_get_max_depth() - term->depth + 1) * term->refs;
+}
+
+static int cmp_pri(pqueue_pri_t next, pqueue_pri_t curr)
+{
+	return next < curr;
+}
+
+static void set_pos(void *a, size_t position)
+{
+	(void)a;
+	(void)position;
+}
+
+void schedule_init(void)
+{
+	queue = map_to_pqueue(cmp_pri, get_pri, set_pos);
+}
+
+void schedule_destroy(void)
+{
+	pqueue_free(queue);
+}