d5bd0039b9
Summary: This is the next part of the ImmutableOptions cleanup. After changing the use of ImmutableCFOptions to ImmutableOptions, there were places in the code that had did something like "ImmutableOptions* immutable_cf_options", where "cf" referred to the "old" type. This change simply renames the variables to match the current type. No new functionality is introduced. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8409 Reviewed By: pdillinger Differential Revision: D29166248 Pulled By: mrambacher fbshipit-source-id: 96de97f8e743f5c5160f02246e3ed8269556dc6f
53 lines
1.5 KiB
C++
53 lines
1.5 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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#pragma once
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#include <cinttypes>
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#include "cache/cache_helpers.h"
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#include "rocksdb/rocksdb_namespace.h"
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#include "util/mutexlock.h"
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namespace ROCKSDB_NAMESPACE {
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class Cache;
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struct ImmutableOptions;
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struct FileOptions;
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class HistogramImpl;
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class Status;
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class BlobFileReader;
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class Slice;
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class IOTracer;
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class BlobFileCache {
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public:
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BlobFileCache(Cache* cache, const ImmutableOptions* immutable_options,
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const FileOptions* file_options, uint32_t column_family_id,
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HistogramImpl* blob_file_read_hist,
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const std::shared_ptr<IOTracer>& io_tracer);
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BlobFileCache(const BlobFileCache&) = delete;
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BlobFileCache& operator=(const BlobFileCache&) = delete;
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Status GetBlobFileReader(uint64_t blob_file_number,
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CacheHandleGuard<BlobFileReader>* blob_file_reader);
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private:
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Cache* cache_;
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// Note: mutex_ below is used to guard against multiple threads racing to open
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// the same file.
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Striped<port::Mutex, Slice> mutex_;
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const ImmutableOptions* immutable_options_;
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const FileOptions* file_options_;
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uint32_t column_family_id_;
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HistogramImpl* blob_file_read_hist_;
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std::shared_ptr<IOTracer> io_tracer_;
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static constexpr size_t kNumberOfMutexStripes = 1 << 7;
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};
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} // namespace ROCKSDB_NAMESPACE
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