Kudu C++ client API
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include
kudu
client
shared_ptr.h
Go to the documentation of this file.
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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#ifndef KUDU_CLIENT_SHARED_PTR_H
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#define KUDU_CLIENT_SHARED_PTR_H
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// This include is not used directly, but we need to include some C++ header in
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// order to ensure the _LIBCPP_VERSION macro is defined appropriately.
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#include <string>
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#if defined(_LIBCPP_VERSION)
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// TODO(adar): our IWYU runs with libc++ and misbehaves with this header:
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//
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// 1. All inclusions must append "// IWYU pragma: keep" otherwise IWYU removes them.
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// 2. IWYU adds <memory> to every file that includes this header.
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//
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// In theory, the second problem can be addressed by adding
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// "// IWYU pragma: export" to the inclusion of <memory> just below. However,
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// that actually inverts the effect: IWYU removes <memory> from every file that
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// includes this header. This is unsafe because if we're doing a regular Kudu
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// build, this header includes <tr1/memory>, leaving the source file without any
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// inclusion of <memory> and unable to satisfy references to e.g. std::unique_ptr.
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//
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// There must be a way to convince IWYU that the classes in kudu::client::sp are
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// "real" and not just aliases of std classes. One way to do that would be to
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// insert complete copies of those classes just for IWYU, but that seems like overkill.
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#include <memory>
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namespace
kudu {
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namespace
client {
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namespace
sp {
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using
std::shared_ptr;
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using
std::weak_ptr;
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using
std::enable_shared_from_this;
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}
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}
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}
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#else
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#include <tr1/memory>
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namespace
kudu {
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namespace
client {
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namespace
sp {
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using
std::tr1::shared_ptr;
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using
std::tr1::weak_ptr;
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using
std::tr1::enable_shared_from_this;
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}
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}
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}
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#endif
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#endif
// define KUDU_CLIENT_SHARED_PTR_H
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Copyright © 2023 The Apache Software Foundation.