| // 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. |
| |
| #ifndef KUDU_CLIENT_SHARED_PTR_H |
| #define KUDU_CLIENT_SHARED_PTR_H |
| |
| /// @file shared_ptr.h |
| /// @brief Smart pointer typedefs for externally-faced code. |
| /// |
| /// Kudu uses c++11 features internally, but provides a client interface which |
| /// does not require c++11. We use std::tr1::shared_ptr in our public interface |
| /// to hold shared instances of KuduClient, KuduSession, and KuduTable. |
| /// |
| /// However, if building with libc++ (e.g. if building on macOS), the TR1 APIs |
| /// are not implemented. As a workaround, we use std::shared_ptr with libc++. |
| /// |
| /// In order to allow applications to compile against Kudu with libstdc++ as |
| /// well as with libc++, macros are provided that will resolve to the correct |
| /// namespace in either case. Clients are encouraged to use these macros in |
| /// order to ensure that applications compile universally. |
| |
| // This include is not used directly, but we need to include some C++ header in |
| // order to ensure the _LIBCPP_VERSION macro is defined appropriately. |
| #include <string> |
| |
| #if defined(_LIBCPP_VERSION) |
| |
| #include <memory> // IWYU pragma: export |
| |
| namespace kudu { |
| namespace client { |
| namespace sp { |
| using std::shared_ptr; |
| using std::weak_ptr; |
| using std::enable_shared_from_this; |
| } |
| } |
| } |
| |
| #else |
| #include <tr1/memory> // IWYU pragma: export |
| |
| namespace kudu { |
| namespace client { |
| namespace sp { |
| using std::tr1::shared_ptr; |
| using std::tr1::weak_ptr; |
| using std::tr1::enable_shared_from_this; |
| } |
| } |
| } |
| #endif |
| |
| #endif // define KUDU_CLIENT_SHARED_PTR_H |