chore: import upstream snapshot with attribution

apps/cpp_rpc/rpc_env.h

@@ -0,0 +1,83 @@
+/*
+ * 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 implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/*!
+ * \file rpc_env.h
+ * \brief Server environment of the RPC.
+ */
+#ifndef TVM_APPS_CPP_RPC_ENV_H_
+#define TVM_APPS_CPP_RPC_ENV_H_
+
+#include <tvm/ffi/function.h>
+
+#include <string>
+
+namespace tvm {
+namespace runtime {
+
+/*!
+ * \brief ListDir Get the list of files in a directory
+ * \param dirname The root directory name
+ * \return vector Files in directory.
+ */
+std::vector<std::string> ListDir(const std::string& dirname);
+
+/*!
+ * \brief build a shared library if necessary
+ *
+ *        This function will automatically call
+ *        cc.create_shared if the path is in format .o or .tar
+ *        High level handling for .o and .tar file.
+ *        We support this to be consistent with RPC module load.
+ * \param file_in The input file path.
+ *
+ * \return The name of the shared library.
+ */
+std::string BuildSharedLibrary(std::string file_in);
+
+/*!
+ * \brief RPCEnv The RPC Environment parameters for c++ rpc server
+ */
+struct RPCEnv {
+ public:
+  /*!
+   * \brief Constructor Init The RPC Environment initialize function
+   */
+  RPCEnv(const std::string& word_dir = "");
+  /*!
+   * \brief GetPath To get the workpath from packed function
+   * \param name The file name
+   * \return The full path of file.
+   */
+  std::string GetPath(const std::string& file_name) const;
+  /*!
+   * \brief The RPC Environment cleanup function
+   */
+  void CleanUp() const;
+
+ private:
+  /*!
+   * \brief Holds the environment path.
+   */
+  std::string base_;
+};  // RPCEnv
+
+}  // namespace runtime
+}  // namespace tvm
+#endif  // TVM_APPS_CPP_RPC_ENV_H_