kernel: ringbuffer

kernel-src/include/ringbuffer.h

@@ -0,0 +1,21 @@
+#ifndef _RINGBUFFER_H
+#define _RINGBUFFER_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct {
+	size_t size;
+	uintmax_t write;
+	uintmax_t read;
+	void *data;
+} ringbuffer_t;
+
+int ringbuffer_init(ringbuffer_t *ringbuffer, size_t size);
+void ringbuffer_destroy(ringbuffer_t *ringbuffer);
+size_t ringbuffer_read(ringbuffer_t* ringbuffer, void *buffer, size_t count);
+size_t ringbuffer_write(ringbuffer_t* ringbuffer, void *buffer, size_t count);
+
+#define RINGBUFFER_DATACOUNT(x) ((x)->write - (x)->read)
+
+#endif