1 /* 2 * Copyright (c) 2017 VMware, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "common.h" 18 #include "table_storage_impl.h" 19 20 namespace ebpf { 21 22 using std::string; 23 using std::unique_ptr; 24 25 /// A filesystem backed table storage 26 class BpfFsTableStorage : public TableStorageImpl { 27 public: 28 class iterator : public TableStorageIteratorImpl { 29 public: 30 virtual ~iterator() {} 31 virtual unique_ptr<self_type> clone() const override; 32 virtual self_type &operator++() override; 33 virtual value_type &operator*() const override; 34 virtual pointer operator->() const override; 35 }; 36 virtual ~BpfFsTableStorage() {} 37 virtual bool Find(const string &name, TableStorage::iterator &result) const override; 38 virtual bool Insert(const string &name, TableDesc &&desc) override; 39 virtual bool Delete(const string &name) override; 40 virtual unique_ptr<TableStorageIteratorImpl> begin() override; 41 virtual unique_ptr<TableStorageIteratorImpl> end() override; 42 virtual unique_ptr<TableStorageIteratorImpl> lower_bound(const string &k) override; 43 virtual unique_ptr<TableStorageIteratorImpl> upper_bound(const string &k) override; 44 virtual unique_ptr<TableStorageIteratorImpl> erase(const TableStorageIteratorImpl &it) override; 45 46 private: 47 }; 48 49 bool BpfFsTableStorage::Find(const string &name, TableStorage::iterator &result) const { 50 return false; 51 } 52 53 bool BpfFsTableStorage::Insert(const string &name, TableDesc &&desc) { return false; } 54 55 bool BpfFsTableStorage::Delete(const string &name) { return false; } 56 57 unique_ptr<TableStorageIteratorImpl> BpfFsTableStorage::begin() { return unique_ptr<iterator>(); } 58 unique_ptr<TableStorageIteratorImpl> BpfFsTableStorage::end() { return unique_ptr<iterator>(); } 59 unique_ptr<TableStorageIteratorImpl> BpfFsTableStorage::lower_bound(const string &k) { 60 return unique_ptr<iterator>(); 61 } 62 unique_ptr<TableStorageIteratorImpl> BpfFsTableStorage::upper_bound(const string &k) { 63 return unique_ptr<iterator>(); 64 } 65 unique_ptr<TableStorageIteratorImpl> BpfFsTableStorage::erase(const TableStorageIteratorImpl &it) { 66 return unique_ptr<iterator>(); 67 } 68 69 unique_ptr<TableStorage> createBpfFsTableStorage() { 70 auto t = make_unique<TableStorage>(); 71 t->Init(make_unique<BpfFsTableStorage>()); 72 return t; 73 } 74 75 } // namespace ebpf 76
