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diff --git a/hicn-plugin/src/host_stack/test/hicn_hs_client.h b/hicn-plugin/src/host_stack/test/hicn_hs_client.h
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@@ -0,0 +1,127 @@
+
+/*
+ * echo_client.h - built-in application layer echo client
+ *
+ * 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.
+ */
+#ifndef __included_hicn_hs_client_h__
+#define __included_hicn_hs_client_h__
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+#include <vnet/session/session.h>
+#include <vnet/session/application_interface.h>
+
+typedef struct
+{
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+ app_session_t data;
+ u64 bytes_to_send;
+ u64 bytes_sent;
+ u64 bytes_to_receive;
+ u64 bytes_received;
+ u64 vpp_session_handle;
+ u8 thread_index;
+} eclient_session_t;
+
+typedef struct
+{
+ /*
+ * Application setup parameters
+ */
+ svm_queue_t *vl_input_queue; /**< vpe input queue */
+ svm_msg_q_t **vpp_event_queue;
+
+ u32 cli_node_index; /**< cli process node index */
+ u32 my_client_index; /**< loopback API client handle */
+ u32 app_index; /**< app index after attach */
+
+ /*
+ * Configuration params
+ */
+ u8 *connect_uri; /**< URI for slave's connect */
+ u64 bytes_to_send; /**< Bytes to send */
+ u32 configured_segment_size;
+ u32 fifo_size;
+ u32 expected_connections; /**< Number of clients/connections */
+ u32 connections_per_batch; /**< Connections to rx/tx at once */
+ u32 private_segment_count; /**< Number of private fifo segs */
+ u32 private_segment_size; /**< size of private fifo segs */
+ u32 tls_engine; /**< TLS engine mbedtls/openssl */
+ u8 is_dgram;
+ u32 no_copy; /**< Don't memcpy data to tx fifo */
+
+ /*
+ * Test state variables
+ */
+ eclient_session_t *sessions; /**< Session pool, shared */
+ clib_spinlock_t sessions_lock;
+ u8 **rx_buf; /**< intermediate rx buffers */
+ u8 *connect_test_data; /**< Pre-computed test data */
+ u32 **connection_index_by_thread;
+ u32 **connections_this_batch_by_thread; /**< active connection batch */
+ pthread_t client_thread_handle;
+
+ volatile u32 ready_connections;
+ volatile u32 finished_connections;
+ volatile u64 rx_total;
+ volatile u64 tx_total;
+ volatile int run_test; /**< Signal start of test */
+
+ f64 test_start_time;
+ f64 test_end_time;
+ u32 prev_conns;
+ u32 repeats;
+ /*
+ * Flags
+ */
+ u8 is_init;
+ u8 test_client_attached;
+ u8 no_return;
+ u8 test_return_packets;
+ int i_am_master;
+ int drop_packets; /**< drop all packets */
+ u8 prealloc_fifos; /**< Request fifo preallocation */
+ u8 no_output;
+ u8 test_bytes;
+ u8 test_failed;
+ u8 transport_proto;
+
+ vlib_main_t *vlib_main;
+} hicn_client_main_t;
+
+enum
+{
+ HICN_CLIENT_STARTING,
+ HICN_CLIENT_RUNNING,
+ HICN_CLIENT_EXITING
+} hicn_client_state_e;
+
+extern hicn_client_main_t hicn_client_main;
+
+vlib_node_registration_t hicn_client_node;
+
+#endif /* __included_hicn_hs_client_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */