From 07e2e5099de0e8bdd8c981a628d5cbe471f18d08 Mon Sep 17 00:00:00 2001
From: Max Wash <mbswash@gmail.com>
Date: Sun, 29 Jan 2023 20:11:02 +0000
Subject: [PATCH] sandbox: queue: add queue_delete_all() and QUEUE_INIT

---
 sandbox/queue/include/socks/queue.h |  3 +++
 sandbox/queue/queue.c               | 13 +++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/sandbox/queue/include/socks/queue.h b/sandbox/queue/include/socks/queue.h
index 713b444..77f0c96 100644
--- a/sandbox/queue/include/socks/queue.h
+++ b/sandbox/queue/include/socks/queue.h
@@ -5,6 +5,8 @@
 
 #define QUEUE_CONTAINER(t, m, v) ((void *)((v) ? (uintptr_t)(v) - (offsetof(t, m)) : 0))
 
+#define QUEUE_INIT ((queue_t){ .q_first = NULL, .q_last = NULL, .q_length = 0})
+
 #define queue_foreach(iter_type, iter_name, queue_name, node_member) \
 	for (iter_type *iter_name = QUEUE_CONTAINER(iter_type, node_member, queue_first(queue_name)); \
 	     iter_name; \
@@ -44,5 +46,6 @@ extern queue_entry_t *queue_pop_front(queue_t *q);
 extern queue_entry_t *queue_pop_back(queue_t *q);
 
 extern void queue_delete(queue_t *q, queue_entry_t *entry);
+extern void queue_delete_all(queue_t *q);
 
 #endif
diff --git a/sandbox/queue/queue.c b/sandbox/queue/queue.c
index 1229da8..cf3ac8d 100644
--- a/sandbox/queue/queue.c
+++ b/sandbox/queue/queue.c
@@ -102,3 +102,16 @@ void queue_delete(queue_t *q, queue_entry_t *entry)
 	entry->qe_next = entry->qe_prev = NULL;
 	q->q_length--;
 }
+
+void queue_delete_all(queue_t *q)
+{
+	queue_entry_t *x = q->q_first;
+	while (x) {
+		queue_entry_t *next = x->qe_next;
+		x->qe_next = x->qe_prev = NULL;
+		x = next;
+	}
+
+	q->q_first = q->q_last = NULL;
+	q->q_length = 0;
+}