libk/list.h; reading mmap from multiboot2

1 files changed, 37 insertions, 0 deletions

diff --git a/kernel/src/libk/list.c b/kernel/src/libk/list.c
new file mode 100644
index 0000000..5f75845
--- /dev/null
+++ b/kernel/src/libk/list.c
@@ -0,0 +1,37 @@
+#include <libk/list.h>
+#include <heap.h>
+
+void add_to_list_head(list_t** ptr, void* data)
+{
+	list_t* node = (list_t*)kalloc(sizeof(list_t));
+	node->data = data;
+
+	node->next = *ptr;
+	*ptr = node;
+}
+
+void add_to_list_tail(list_t** ptr, void* data)
+{
+	list_t* node = (list_t*)kalloc(sizeof(list_t));
+	node->data = data;
+
+	if (*ptr == NULL) {
+		*ptr = node;
+	} else {
+		list_t* tmp = *ptr;
+		while (tmp->next != NULL)
+			tmp = tmp->next;
+		tmp->next = node;
+	}
+}
+
+void free_list(list_t** ptr)
+{
+	if (*ptr == NULL)
+		return;
+
+	for (list_t* tmp = (*ptr)->next; tmp != NULL; tmp = tmp->next) {
+		kfree(*ptr);
+		*ptr = tmp;
+	}
+}