lib: add ring buffer

Simple ring buffer implementation useful for fixed size FIFO queues.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/lib/test_ringbuf.py b/tests/lib/test_ringbuf.py
new file mode 100644
index 0000000000..860d872f86
--- /dev/null
+++ b/tests/lib/test_ringbuf.py
@@ -0,0 +1,4 @@
+import frrtest
+
+class TestRingbuf(frrtest.TestExitNonzero):
+    program = './test_ringbuf'