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diff --git a/libccnx-transport-rta/ccnx/transport/test_tools/bent_pipe.h b/libccnx-transport-rta/ccnx/transport/test_tools/bent_pipe.h
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+/*
+ * Copyright (c) 2017 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.
+ */
+
+/**
+ * @file bent_pipe.h
+ * @brief <#Brief Description#>
+ *
+ * PF_UNIX "forwarder" for testing.  It's a bent pipe.  Whatever comes down
+ * one connection goes up all the others.
+ *
+ * It runs in its own thread and uses an event model.
+ *
+ * We capture SIG_PIPE when doing a write so this test code does not
+ * trigger a process-wide SIG_PIPE.  Unless we have SO_SIGPIPE, then we'll use that.
+ *
+ */
+#ifndef Libccnx_bent_pipe_h
+#define Libccnx_bent_pipe_h
+
+#include <stdbool.h>
+
+struct bentpipe_state;
+/**
+ *
+ * @see bentpipe_Create
+ */
+typedef struct bentpipe_state BentPipeState;
+
+/**
+ * <#One Line Description#>
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ *
+ * @see <#references#>
+ */
+BentPipeState *bentpipe_Create(const char *local_name);
+
+/**
+ * <#One Line Description#>
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ *
+ * @see <#references#>
+ */
+void bentpipe_Destroy(BentPipeState **statePtr);
+
+/**
+ * <#One Line Description#>
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ *
+ * @see <#references#>
+ */
+int bentpipe_Start(BentPipeState *bp);
+
+/**
+ * <#One Line Description#>
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ *
+ * @see <#references#>
+ */
+int bentpipe_Stop(BentPipeState *bp);
+
+/**
+ * <#One Line Description#>
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ *
+ * @see <#references#>
+ */
+void bentpipe_SetChattyOutput(BentPipeState *bp, bool chattyOutput);
+
+/**
+ * <#One Line Description#>
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ *
+ * @see <#references#>
+ */
+int bentpipe_Params(BentPipeState *bp, double loss_rate, unsigned buffer_bytes, double mean_sec_delay, double bytes_per_sec);
+#endif // Libccnx_bent_pipe_h