Feat: lab 4

kernel/include/queue.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <stddef.h>
+
+typedef struct queue_node {
+  struct queue_node *prev, *next;
+  uint64_t value;
+} queue_node_t;
+
+typedef struct queue {
+  size_t size;
+
+  queue_node_t *begin, *end;
+} queue_t;
+
+queue_t *make_queue();
+
+uint64_t queue_back(const queue_t *queue);
+uint64_t queue_front(const queue_t *queue);
+
+void queue_push_back(queue_t *queue, uint64_t val);
+void queue_push_front(queue_t *queue, uint64_t val);
+
+#define QUEUE_BACK(type, queue) ((type *)queue_back(queue))
+#define QUEUE_FRONT(type, queue) ((type *)queue_front(queue))
+#define QUEUE_PUSH_BACK(queue, val) \
+  queue_push_back(queue, (uint64_t)val)
+#define QUEUE_PUSH_FRONT(queue, val) \
+  queue_push_front(queue, (uint64_t)val)