src/runtime/rpc/rpc_server_env.cc

/*
 * 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_server_env.cc
 * \brief Server environment of the RPC.
 */
#include <tvm/runtime/registry.h>

#include "../file_utils.h"

namespace tvm {
namespace runtime {

std::string RPCGetPath(const std::string& name) {
  // do live lookup everytime as workpath can change.
  const PackedFunc* f = runtime::Registry::Get("tvm.rpc.server.workpath");
  ICHECK(f != nullptr) << "require tvm.rpc.server.workpath";
  return (*f)(name);
}

TVM_REGISTER_GLOBAL("tvm.rpc.server.upload").set_body([](TVMArgs args, TVMRetValue* rv) {
  std::string file_name = RPCGetPath(args[0]);
  std::string data = args[1];
  SaveBinaryToFile(file_name, data);
});

TVM_REGISTER_GLOBAL("tvm.rpc.server.download").set_body([](TVMArgs args, TVMRetValue* rv) {
  std::string file_name = RPCGetPath(args[0]);
  std::string data;
  LoadBinaryFromFile(file_name, &data);
  TVMByteArray arr;
  arr.data = data.c_str();
  arr.size = data.length();
  LOG(INFO) << "Download " << file_name << "... nbytes=" << arr.size;
  *rv = arr;
});

TVM_REGISTER_GLOBAL("tvm.rpc.server.remove").set_body([](TVMArgs args, TVMRetValue* rv) {
  std::string file_name = RPCGetPath(args[0]);
  RemoveFile(file_name);
});

}  // namespace runtime
}  // namespace tvm