First Commit

src/shared/queue.h

@@ -0,0 +1,31 @@
+#ifndef QUEUE_H
+#define QUEUE_H
+
+#include <stdbool.h>
+#include <threads.h>
+
+typedef struct Queue {
+  void **items;
+  int front;
+  int rear;
+  int size;
+  int capacity;
+  void (*item_destroyer)(void *item);
+} Queue;
+
+Queue *queue_create(int capacity, void (*destroyer)(void *item));
+void queue_destroy(Queue *queue);
+bool queue_is_empty(Queue *queue);
+bool queue_is_full(Queue *queue);
+void queue_double_capacity(Queue *queue);
+void queue_enqueue(Queue *queue, void *item);
+void queue_enqueue_multithreaded(Queue *queue, void *item, mtx_t *mutex,
+                                 cnd_t *condition_not_empty,
+                                 cnd_t *condition_not_full);
+void *queue_dequeue(Queue *queue);
+void *queue_dequeue_multithreaded(Queue *queue, mtx_t *mutex,
+                                  cnd_t *condition_not_empty,
+                                  cnd_t *condition_not_full,
+                                  bool *other_thread_done);
+
+#endif