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-rw-r--r--include/libk/data/list.h32
-rw-r--r--include/libk/data/ringbuf.h50
2 files changed, 82 insertions, 0 deletions
diff --git a/include/libk/data/list.h b/include/libk/data/list.h
new file mode 100644
index 0000000..69eee3a
--- /dev/null
+++ b/include/libk/data/list.h
@@ -0,0 +1,32 @@
+#ifndef LIBK_LIST_H
+#define LIBK_LIST_H
+
+#include <stddef.h>
+
+struct list_head {
+ struct list_head *next;
+ struct list_head *prev;
+};
+
+static inline void list_add(struct list_head *new, struct list_head *head) {
+ struct list_head *temp = head;
+ while (temp->next != NULL)
+ temp = temp->next;
+
+ temp->next = new;
+ new->prev = temp;
+ new->next = NULL;
+}
+
+static inline void list_del(struct list_head *item) {
+ struct list_head *next = item->next;
+ struct list_head *prev = item->prev;
+ if (next != NULL)
+ next->prev = prev;
+ if (prev != NULL)
+ prev->next = next;
+ item->next = NULL;
+ item->prev = NULL;
+}
+
+#endif
diff --git a/include/libk/data/ringbuf.h b/include/libk/data/ringbuf.h
new file mode 100644
index 0000000..cc6d77b
--- /dev/null
+++ b/include/libk/data/ringbuf.h
@@ -0,0 +1,50 @@
+#ifndef LIBK_RINGBUF_H
+#define LIBK_RINGBUF_H
+
+#include <kernel/kmalloc.h>
+#include <kernel/string.h>
+#include <stdint.h>
+
+struct ringbuf {
+ void *buffer;
+ void *buf_end;
+ uint32_t capacity;
+ uint32_t count;
+ uint32_t size;
+ void *head;
+ void *tail;
+};
+
+static inline void rb_init(struct ringbuf *rb, uint32_t capacity, uint32_t size) {
+ rb->buffer = kmalloc(capacity * size);
+ rb->buf_end = (char*)rb->buffer + (capacity * size);
+ rb->capacity = capacity;
+ rb->size = size;
+ rb->head = rb->buffer;
+ rb->tail = rb->buffer;
+}
+
+static inline int rb_push_back(struct ringbuf *rb, const void *item, size_t size) {
+ if (rb->count == rb->capacity)
+ return -1;
+ if (size > rb->size)
+ return -1;
+
+ void *tmp = rb->tail + rb->size;
+ if (tmp > rb->head + rb->capacity * rb->size)
+ rb->tail = rb->head;
+ memcpy(rb->tail, item, size);
+ rb->tail += rb->size;
+ rb->count++;
+ return 0;
+}
+
+static inline void rb_pop_front(struct ringbuf *rb, void *item) {
+ memcpy(item, rb->tail, rb->size);
+ rb->tail = (char*)rb->tail + rb->size;
+ if (rb->tail == rb->buf_end)
+ rb->tail = rb->buffer;
+ rb->count--;
+}
+
+#endif