Siying Dong c4548d5f1f WriteBatch to provide a way for user to query data size directly and only return constant reference of data in Data() ...

Summary:
WriteBatch::Data() now is easily to be misuse by users. Also, there is no cheap way for user of WriteBatch to know the data size accumulated. This patch fix the problem by:
(1) return a constant reference to Data() so it's obvious to caller what it means.
(2) add a function to return data size directly

Test Plan: make all check

Reviewers: haobo, igor, kailiu

Reviewed By: kailiu

CC: zshao, leveldb

Differential Revision: https://reviews.facebook.net/D15123

2014-01-13 16:52:14 -08:00

..

arena.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

c.h

C API: add rocksdb_env_set_high_priority_background_threads

2013-12-31 15:14:18 -08:00

cache.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

compaction_filter.h

Clarify CompactionFilter thread safety requirements

2013-12-02 16:41:43 -08:00

comparator.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

db.h

Support multi-threaded DisableFileDeletions() and EnableFileDeletions()

2014-01-02 03:33:42 -08:00

env.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

filter_policy.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

flush_block_policy.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

iterator.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

ldb_tool.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

memtablerep.h

Killing Transform Rep

2013-12-03 12:42:15 -08:00

merge_operator.h

Introduce MergeContext to Lazily Initialize merge operand list

2013-12-11 11:37:28 -08:00

options.h

Improve RocksDB "get" performance by computing merge result in memtable

2014-01-10 17:33:56 -08:00

perf_context.h

Revert "Allow users to profile a query and see bottleneck of the query"

2013-11-21 17:40:39 -08:00

slice_transform.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

slice.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

statistics.h

Add monitoring for universal compaction and add counters for compaction IO

2013-12-12 13:27:43 -08:00

status.h

Avoid malloc in NotFound key status if no message is given.

2013-12-26 16:23:10 -08:00

table_properties.h

Improve the "table stats"

2013-11-19 16:29:42 -08:00

table.h

Improve the "table stats"

2013-11-19 16:29:42 -08:00

transaction_log.h

Initialize sequence number in BatchResult - issue #39

2013-12-20 10:01:12 -08:00

types.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

universal_compaction.h

Add License message to public header files.

2013-11-18 10:21:35 -08:00

write_batch.h

WriteBatch to provide a way for user to query data size directly and only return constant reference of data in Data()

2014-01-13 16:52:14 -08:00