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Add the property block for the plain table

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Summary:
This is the last diff that adds the property block to plain table.
The format resembles that of the block-based table: https://github.com/facebook/rocksdb/wiki/Rocksdb-table-format

  [data block]
  [meta block 1: stats block]
  [meta block 2: future extended block]
  ...
  [meta block K: future extended block]  (we may add more meta blocks in the future)
  [metaindex block]
  [index block: we only have the placeholder here, we can add persistent index block in the future]
  [Footer: contains magic number, handle to metaindex block and index block]
  <end_of_file>

Test Plan: extended existing property block test.

Reviewers: haobo, sdong, dhruba

CC: leveldb

Differential Revision: https://reviews.facebook.net/D14523
This commit is contained in:
Kai Liu
2013-12-05 16:51:26 -08:00
parent 5f5e5fc2e9
commit 2e9efcd6d8
13 changed files with 578 additions and 307 deletions
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6
table/block_based_table_reader.h
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@@ -38,7 +38,6 @@ using std::unique_ptr;
class BlockBasedTable : public TableReader {
public:
static const std::string kFilterBlockPrefix;
static const std::string kPropertiesBlock;
// Attempt to open the table that is stored in bytes [0..file_size)
// of "file", and read the metadata entries necessary to allow
@@ -142,7 +141,6 @@ class BlockBasedTable : public TableReader {
void ReadMeta(const Footer& footer);
void ReadFilter(const Slice& filter_handle_value);
static Status ReadProperties(const Slice& handle_value, Rep* rep);
// Read the meta block from sst.
static Status ReadMetaBlock(
@@ -156,10 +154,6 @@ class BlockBasedTable : public TableReader {
Rep* rep,
size_t* filter_size = nullptr);
// Read the table properties from properties block.
static Status ReadProperties(
const Slice& handle_value, Rep* rep, TableProperties* properties);
static void SetupCacheKeyPrefix(Rep* rep);
explicit BlockBasedTable(Rep* rep) :