346055a9ea
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/13168 The patch moves `WideColumnSerialization::Find` to `WideColumnsHelper` to facilitate reuse in non-serialization-related contexts. It also generalizes the method to take a range of iterators, and templatizes it on the iterator type to enable using it with both `const` and non-`const` iterators. Finally, it adds an assertion to ensure the method is called with a properly sorted range, which is a precondition for binary search. Reviewed By: jaykorean Differential Revision: D66602558 fbshipit-source-id: 841a885af31e183edeb7e3314167c55f8ed53ff1
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
// Copyright (c) Meta Platforms, Inc. and affiliates.
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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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#include "db/wide/wide_columns_helper.h"
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#include <ios>
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#include "db/wide/wide_column_serialization.h"
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namespace ROCKSDB_NAMESPACE {
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void WideColumnsHelper::DumpWideColumns(const WideColumns& columns,
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std::ostream& os, bool hex) {
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if (columns.empty()) {
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return;
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}
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const std::ios_base::fmtflags orig_flags = os.flags();
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if (hex) {
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os << std::hex;
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}
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auto it = columns.begin();
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os << *it;
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for (++it; it != columns.end(); ++it) {
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os << ' ' << *it;
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}
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os.flags(orig_flags);
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}
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Status WideColumnsHelper::DumpSliceAsWideColumns(const Slice& value,
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std::ostream& os, bool hex) {
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WideColumns columns;
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Slice value_copy = value;
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const Status s = WideColumnSerialization::Deserialize(value_copy, columns);
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if (s.ok()) {
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DumpWideColumns(columns, os, hex);
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}
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return s;
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}
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} // namespace ROCKSDB_NAMESPACE
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