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bda8d93ba9
Summary: It's always annoying to find a header does not include its own dependencies and only works when included after other includes. This change adds `make check-headers` which validates that each header can be included at the top of a file. Some headers are excluded e.g. because of platform or external dependencies. rocksdb_namespace.h had to be re-worked slightly to enable checking for failure to include it. (ROCKSDB_NAMESPACE is a valid namespace name.) Fixes mostly involve adding and cleaning up #includes, but for FileTraceWriter, a constructor was out-of-lined to make a forward declaration sufficient. This check is not currently run with `make check` but is added to CircleCI build-linux-unity since that one is already relatively fast. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8893 Test Plan: existing tests and resolving issues detected by new check Reviewed By: mrambacher Differential Revision: D30823300 Pulled By: pdillinger fbshipit-source-id: 9fff223944994c83c105e2e6496d24845dc8e572
25 lines
862 B
C++
25 lines
862 B
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include "rocksdb/comparator.h"
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namespace ROCKSDB_NAMESPACE {
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// A comparator to be used in std::set
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struct SetComparator {
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explicit SetComparator() : user_comparator_(BytewiseComparator()) {}
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explicit SetComparator(const Comparator* user_comparator)
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: user_comparator_(user_comparator ? user_comparator
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: BytewiseComparator()) {}
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bool operator()(const Slice& lhs, const Slice& rhs) const {
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return user_comparator_->Compare(lhs, rhs) < 0;
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}
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private:
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const Comparator* user_comparator_;
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};
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} // namespace ROCKSDB_NAMESPACE
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