/* * 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. */ /*! * Copyright (c) 2017 by Contributors * \file rpc_event_impl.cc * \brief Event based RPC server implementation. */ #include <tvm/runtime/registry.h> #include <memory> #include "rpc_session.h" namespace tvm { namespace runtime { class CallbackChannel final : public RPCChannel { public: explicit CallbackChannel(PackedFunc fsend) : fsend_(fsend) {} size_t Send(const void* data, size_t size) final { TVMByteArray bytes; bytes.data = static_cast<const char*>(data); bytes.size = size; uint64_t ret = fsend_(bytes); return static_cast<size_t>(ret); } size_t Recv(void* data, size_t size) final { LOG(FATAL) << "Do not allow explicit receive for"; return 0; } private: PackedFunc fsend_; }; PackedFunc CreateEventDrivenServer(PackedFunc fsend, std::string name, std::string remote_key) { std::unique_ptr<CallbackChannel> ch(new CallbackChannel(fsend)); std::shared_ptr<RPCSession> sess = RPCSession::Create(std::move(ch), name, remote_key); return PackedFunc([sess](TVMArgs args, TVMRetValue* rv) { int ret = sess->ServerEventHandler(args[0], args[1]); *rv = ret; }); } TVM_REGISTER_GLOBAL("rpc._CreateEventDrivenServer") .set_body_typed(CreateEventDrivenServer); } // namespace runtime } // namespace tvm