Github user SolidWallOfCode commented on a diff in the pull request:
--- Diff: iocore/net/BIO_fastopen.h ---
@@ -0,0 +1,38 @@
+ * OpenSSL socket BIO that does TCP Fast Open.
+ * @section license License
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+// Return a BIO_METHOD for a socket BIO that implements TCP Fast Open.
+const BIO_METHOD *BIO_s_fastopen();
+// OpenSSL 1.0.2h has BIO_set_conn_ip(), but master has
+// the API from master since it makes more sense.
+#define BIO_set_conn_address(b, addr) BIO_ctrl(b, BIO_C_SET_CONNECT, 2,
--- End diff --
We're using C++, perhaps an inline function instead of `#define`?
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