Revision created by MOE tool push_codebase.

MOE_MIGRATION=


git-svn-id: https://leveldb.googlecode.com/svn/trunk@22 62dab493-f737-651d-591e-8d6aee1b9529

db/table_cache.h

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-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Thread-safe (provides internal synchronization)
-
-#ifndef STORAGE_LEVELDB_DB_TABLE_CACHE_H_
-#define STORAGE_LEVELDB_DB_TABLE_CACHE_H_
-
-#include <string>
-#include <stdint.h>
-#include "db/dbformat.h"
-#include "leveldb/cache.h"
-#include "leveldb/table.h"
-#include "port/port.h"
-
-namespace leveldb {
-
-class Env;
-
-class TableCache {
- public:
-  TableCache(const std::string& dbname, const Options* options, int entries);
-  ~TableCache();
-
-  // Return an iterator for the specified file number (the corresponding
-  // file length must be exactly "file_size" bytes).  If "tableptr" is
-  // non-NULL, also sets "*tableptr" to point to the Table object
-  // underlying the returned iterator, or NULL if no Table object underlies
-  // the returned iterator.  The returned "*tableptr" object is owned by
-  // the cache and should not be deleted, and is valid for as long as the
-  // returned iterator is live.
-  Iterator* NewIterator(const ReadOptions& options,
-                        uint64_t file_number,
-                        uint64_t file_size,
-                        Table** tableptr = NULL);
-
-  // Evict any entry for the specified file number
-  void Evict(uint64_t file_number);
-
- private:
-  Env* const env_;
-  const std::string dbname_;
-  const Options* options_;
-  Cache* cache_;
-};
-
-}
-
-#endif  // STORAGE_LEVELDB_DB_TABLE_CACHE_H_