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+/*
+ * Copyright (c) 2017-2019 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.
+ */
+
+/**
+ * Methods common to TCP and PF_LOCAL stream-based listeners
+ */
+
+#ifndef streamConnection_h
+#define streamConnection_h
+
+#include <src/core/forwarder.h>
+#include <src/core/messagePacketType.h>
+#include <src/io/addressPair.h>
+#include <src/io/ioOperations.h>
+#include <src/utils/address.h>
+
+/**
+ * @function streamConnection_AcceptConnection
+ * @abstract Receive a connection from a remote peer
+ * @discussion
+ * We are the "server side" of the stream connection, so we need to accept the
+ * client connection and setup state for her.
+ *
+ * @param <#param1#>
+ * @return <#return#>
+ */
+IoOperations *streamConnection_AcceptConnection(Forwarder *forwarder, int fd,
+ AddressPair *pair,
+ bool isLocal);
+
+/**
+ * @function streamConnection_OpenConnection
+ * @abstract Initiate a connection to a remote peer
+ * @discussion
+ * We are the "client side" of the stream connection. We'll create state for
+ * the peer, but it will be in the "down" state until the connection
+ * establishes.
+ *
+ * For TCP, both address pairs need to be the same address family: both INET
+ * or both INET6. The remote address must have the complete socket information
+ * (address, port). The local socket could be wildcarded or may specify down to
+ * the (address, port) pair.
+ *
+ * If the local address is IPADDR_ANY and the port is 0, then it is a normal
+ * call to "connect" that will use whatever local IP address and whatever local
+ * port for the connection. If either the address or port is set, the local
+ * socket will first be bound (via bind(2)), and then call connect().
+ *
+ * AF_UNIX is not yet supported
+ *
+ * If there's an error binding to the specified address or connecting to the
+ * remote address, will return NULL.
+ *
+ * @param pair (takes ownership of this) is the complete socket pair of
+ * (address, port) for each end, if INET or INET6.
+ * @return NULL on error, otherwise the connections IO operations.
+ */
+IoOperations *streamConnection_OpenConnection(Forwarder *forwarder,
+ AddressPair *pair, bool isLocal);
+
+bool streamState_SendCommandResponse(IoOperations *ops, struct iovec *response);
+
+#endif // streamConnection_h