MINOR: quic: Import C source code files for QUIC protocol.
This patch imports all the C files for QUIC protocol implementation with few
modifications from 20200720-quic branch of quic-dev repository found at
https://github.com/haproxytech/quic-dev.
Traces were implemented to help with the development.
diff --git a/src/quic_cc.c b/src/quic_cc.c
new file mode 100644
index 0000000..f716877
--- /dev/null
+++ b/src/quic_cc.c
@@ -0,0 +1,52 @@
+/*
+ * Congestion controller handling.
+ *
+ * This file contains definitions for QUIC congestion control.
+ *
+ * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@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/buf.h>
+#include <haproxy/quic_cc-t.h>
+#include <haproxy/xprt_quic-t.h>
+
+
+struct quic_cc_algo *default_quic_cc_algo = &quic_cc_algo_nr;
+
+/*
+ * Initialize <cc> congestion control with <algo> as algorithm depending on <ipv4>
+ * a boolean which is true for an IPv4 path.
+ */
+void quic_cc_init(struct quic_cc *cc,
+ struct quic_cc_algo *algo, struct quic_conn *qc)
+{
+ cc->qc = qc;
+ cc->algo = algo;
+ if (cc->algo->init)
+ (cc->algo->init(cc));
+}
+
+/* Send <ev> event to <cc> congestion controller. */
+void quic_cc_event(struct quic_cc *cc, struct quic_cc_event *ev)
+{
+ cc->algo->event(cc, ev);
+}
+
+void quic_cc_state_trace(struct buffer *buf, const struct quic_cc *cc)
+{
+ cc->algo->state_trace(buf, cc);
+}