1 files changed, 59 insertions, 0 deletions
diff --git a/src/cbuf.c b/src/cbuf.c
new file mode 100644
index 0000000..b36bbeb
--- /dev/null
+++ b/src/cbuf.c
@@ -0,0 +1,59 @@
+/*
+ * Circular buffer management
+ *
+ * Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaill@haproxy.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <haproxy/list.h>
+#include <haproxy/pool.h>
+#include <haproxy/cbuf-t.h>
+
+DECLARE_POOL(pool_head_cbuf, "cbuf", sizeof(struct cbuf));
+
+/* Allocate and return a new circular buffer with <buf> as <sz> byte internal buffer
+ * if succeeded, NULL if not.
+ */
+struct cbuf *cbuf_new(unsigned char *buf, size_t sz)
+{
+	struct cbuf *cbuf;
+
+	cbuf = pool_alloc(pool_head_cbuf);
+	if (cbuf) {
+		cbuf->sz = sz;
+		cbuf->buf = buf;
+		cbuf->wr = 0;
+		cbuf->rd = 0;
+	}
+
+	return cbuf;
+}
+
+/* Free QUIC ring <cbuf> */
+void cbuf_free(struct cbuf *cbuf)
+{
+	if (!cbuf)
+		return;
+
+	pool_free(pool_head_cbuf, cbuf);
+}
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */