Added very simple stack implementation for procfs

This probably has several bugs, but idc

1 files changed, 27 insertions, 0 deletions

diff --git a/libc/inc/stack.h b/libc/inc/stack.h
new file mode 100644
index 0000000..8fec25f
--- /dev/null
+++ b/libc/inc/stack.h
@@ -0,0 +1,27 @@
+// MIT License, Copyright (c) 2020 Marvin Borner
+
+#ifndef STACK_H
+#define STACK_H
+
+#include <def.h>
+
+struct stack_node {
+	void *data;
+	int nonce;
+	struct stack_node *next;
+	struct stack_node *prev;
+};
+
+struct stack {
+	struct stack_node *tail;
+};
+
+struct stack *stack_new();
+void stack_destroy(struct stack *stack);
+u32 stack_empty(struct stack *stack);
+u32 stack_push_bot(struct stack *stack, void *data);
+u32 stack_push(struct stack *stack, void *data);
+void *stack_pop(struct stack *stack);
+void *stack_peek(struct stack *stack);
+
+#endif