1 files changed, 49 insertions, 0 deletions
diff --git a/lib/src/util/ring.c b/lib/src/util/ring.c
new file mode 100644
index 000000000..2c722a842
--- /dev/null
+++ b/lib/src/util/ring.c
@@ -0,0 +1,49 @@
+
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file ring.c
+ * \brief Implementation of ring buffer.
+ */
+
+#include <stdlib.h>
+
+#include <hicn/util/ring.h>
+
+void
+_ring_init (void **ring_ptr, size_t elt_size, size_t max_size)
+{
+  assert (ring_ptr);
+  assert (elt_size > 0);
+  // we use a static array, not a vector (for now)
+  assert (max_size != 0);
+
+  ring_hdr_t *rh = malloc (RING_HDRLEN + max_size * elt_size);
+
+  rh->roff = 0;
+  rh->woff = 0;
+  rh->size = 0;
+  rh->max_size = max_size;
+
+  *ring_ptr = (uint8_t *) rh + RING_HDRLEN;
+}
+
+void
+_ring_free (void **ring_ptr)
+{
+  free (ring_hdr (*ring_ptr));
+  *ring_ptr = NULL;
+}