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618bf638aa
Summary: Added functions for parsing, serializing, and comparing elements to OptionTypeInfo. These functions allow all of the special cases that could not be handled directly in the map of OptionTypeInfo to be moved into the map. Using these functions, every type can be handled via the map rather than special cased. By adding these functions, the code for handling options can become more standardized (fewer special cases) and (eventually) handled completely by common classes. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6422 Test Plan: pass make check Reviewed By: siying Differential Revision: D21269005 Pulled By: zhichao-cao fbshipit-source-id: 9ba71c721a38ebf9ee88259d60bd81b3282b9077
42 lines
1.4 KiB
C++
42 lines
1.4 KiB
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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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "rocksdb/cache.h"
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#include "cache/lru_cache.h"
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#include "options/options_helper.h"
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#include "util/string_util.h"
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namespace ROCKSDB_NAMESPACE {
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Status Cache::CreateFromString(const ConfigOptions& /*opts*/,
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const std::string& value,
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std::shared_ptr<Cache>* result) {
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Status status;
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std::shared_ptr<Cache> cache;
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if (value.find('=') == std::string::npos) {
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cache = NewLRUCache(ParseSizeT(value));
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} else {
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#ifndef ROCKSDB_LITE
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LRUCacheOptions cache_opts;
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if (!ParseOptionHelper(reinterpret_cast<char*>(&cache_opts),
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OptionType::kLRUCacheOptions, value)) {
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status = Status::InvalidArgument("Invalid cache options");
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}
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cache = NewLRUCache(cache_opts);
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#else
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status = Status::NotSupported("Cannot load cache in LITE mode ", value);
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#endif //! ROCKSDB_LITE
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}
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if (status.ok()) {
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result->swap(cache);
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}
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return status;
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}
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} // namespace ROCKSDB_NAMESPACE
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