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author | dgrogan@chromium.org <dgrogan@chromium.org@62dab493-f737-651d-591e-8d6aee1b9529> | 2011-04-19 23:01:25 +0000 |
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committer | dgrogan@chromium.org <dgrogan@chromium.org@62dab493-f737-651d-591e-8d6aee1b9529> | 2011-04-19 23:01:25 +0000 |
commit | b743906eeabc925f3e824d91a9747012bf249e2f (patch) | |
tree | e7cb4f854196c43045756469627920e4e7b146c1 /include/leveldb/table.h | |
parent | b409afe968b6917574ec08e02c4bf6e6f722e3ca (diff) | |
download | leveldb-b743906eeabc925f3e824d91a9747012bf249e2f.tar.gz |
Revision created by MOE tool push_codebase.
MOE_MIGRATION=
git-svn-id: https://leveldb.googlecode.com/svn/trunk@22 62dab493-f737-651d-591e-8d6aee1b9529
Diffstat (limited to 'include/leveldb/table.h')
-rw-r--r-- | include/leveldb/table.h | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/include/leveldb/table.h b/include/leveldb/table.h deleted file mode 100644 index bd99176..0000000 --- a/include/leveldb/table.h +++ /dev/null @@ -1,69 +0,0 @@ -// 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. - -#ifndef STORAGE_LEVELDB_INCLUDE_TABLE_H_ -#define STORAGE_LEVELDB_INCLUDE_TABLE_H_ - -#include <stdint.h> -#include "leveldb/iterator.h" - -namespace leveldb { - -class Block; -class BlockHandle; -struct Options; -class RandomAccessFile; -struct ReadOptions; - -// A Table is a sorted map from strings to strings. Tables are -// immutable and persistent. -class Table { - public: - // Attempt to open the table that is stored in bytes [0..file_size) - // of "file", and read the metadata entries necessary to allow - // retrieving data from the table. - // - // If successful, returns ok and sets "*table" to the newly opened - // table. The client should delete "*table" when no longer needed. - // If there was an error while initializing the table, sets "*table" - // to NULL and returns a non-ok status. Does not take ownership of - // "*source", but the client must ensure that "source" remains live - // for the duration of the returned table's lifetime. - // - // *file must remain live while this Table is in use. - static Status Open(const Options& options, - RandomAccessFile* file, - uint64_t file_size, - Table** table); - - ~Table(); - - // Returns a new iterator over the table contents. - // The result of NewIterator() is initially invalid (caller must - // call one of the Seek methods on the iterator before using it). - Iterator* NewIterator(const ReadOptions&) const; - - // Given a key, return an approximate byte offset in the file where - // the data for that key begins (or would begin if the key were - // present in the file). The returned value is in terms of file - // bytes, and so includes effects like compression of the underlying data. - // E.g., the approximate offset of the last key in the table will - // be close to the file length. - uint64_t ApproximateOffsetOf(const Slice& key) const; - - private: - struct Rep; - Rep* rep_; - - explicit Table(Rep* rep) { rep_ = rep; } - static Iterator* BlockReader(void*, const ReadOptions&, const Slice&); - - // No copying allowed - Table(const Table&); - void operator=(const Table&); -}; - -} - -#endif // STORAGE_LEVELDB_INCLUDE_TABLE_H_ |