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sdong 6287f0d73b Improve readability of DBIter's two seek functions (#5794) 
Summary:
Doing some code reordering in DBIter::Seek() and DBIter::SeekForPrev().
The logic largely remains the same, except slight difference when handling some stats when valid_ = false, where they are not supposed to be used anyway.
Also remove prefix_start_key_, which sometimes point a part of seek target, some times prefix_start_buf_, which is confusing.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5794

Test Plan: Run all tests.

Differential Revision: D17375257

fbshipit-source-id: 7339a23898cecd3a8475bf72340fcd6f82b933c5
2019-09-16 21:05:07 -07:00
..
compaction
Allow users to stop manual compactions (#3971)
2019-09-16 21:01:47 -07:00
db_impl
Allow users to stop manual compactions (#3971)
2019-09-16 21:01:47 -07:00
arena_wrapped_db_iter.cc
Refactor ArenaWrappedDBIter into separate files (#5801)
2019-09-13 13:50:43 -07:00
arena_wrapped_db_iter.h
Refactor ArenaWrappedDBIter into separate files (#5801)
2019-09-13 13:50:43 -07:00
builder.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
builder.h
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
c_test.c
Add C binding for secondary instance (#5505)
2019-06-27 08:58:54 -07:00
c.cc
Add insert hints for each writebatch (#5728)
2019-09-12 17:15:18 -07:00
column_family_test.cc
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
column_family.cc
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
column_family.h
Bump up memory order of ref counting of ColumnFamilyData (#5723)
2019-08-20 10:34:33 -07:00
compact_files_test.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
compacted_db_impl.cc
New API to get all merge operands for a Key (#5604)
2019-08-06 14:26:44 -07:00
compacted_db_impl.h
Use delete to disable automatic generated methods. (#5009)
2019-09-11 18:09:00 -07:00
comparator_db_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
convenience.cc
Do readahead in VerifyChecksum() (#5713)
2019-08-16 16:42:56 -07:00
corruption_test.cc
Do readahead in VerifyChecksum() (#5713)
2019-08-16 16:42:56 -07:00
cuckoo_table_db_test.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
db_basic_test.cc
Persistent globally unique DB ID in manifest (#5725)
2019-09-03 08:52:24 -07:00
db_blob_index_test.cc
Refactor ArenaWrappedDBIter into separate files (#5801)
2019-09-13 13:50:43 -07:00
db_block_cache_test.cc
Charge block cache for cache internal usage (#5797)
2019-09-16 15:26:21 -07:00
db_bloom_filter_test.cc
Unordered Writes (#5218)
2019-05-13 17:47:21 -07:00
db_compaction_filter_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
db_compaction_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
db_dynamic_level_test.cc
Fix flaky DBDynamicLevelTest.DynamicLevelMaxBytesBase2 (#4668)
2018-11-12 16:42:16 -08:00
db_encryption_test.cc
Fix EncryptedEnv assert (#5735)
2019-09-05 17:21:42 -07:00
db_filesnapshot.cc
Adding DB::GetCurrentWalFile() API as a repliction/backup helper (#5765)
2019-09-04 12:10:17 -07:00
db_flush_test.cc
Ref and unref cfd before and after calling WaitForFlushMemTables (#5513)
2019-07-01 14:12:02 -07:00
db_info_dumper.cc
simplify include directive involving inttypes (#5402)
2019-06-06 13:56:07 -07:00
db_info_dumper.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
db_inplace_update_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
db_io_failure_test.cc
Disable DBIOFailureTest.NoSpaceCompactRange in LITE (#4596)
2018-10-29 14:36:31 -07:00
db_iter_stress_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
db_iter_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
db_iter.cc
Improve readability of DBIter's two seek functions (#5794)
2019-09-16 21:05:07 -07:00
db_iter.h
Improve readability of DBIter's two seek functions (#5794)
2019-09-16 21:05:07 -07:00
db_iterator_test.cc
Charge block cache for cache internal usage (#5797)
2019-09-16 15:26:21 -07:00
db_log_iter_test.cc
Apply modernize-use-override (2nd iteration)
2019-02-14 14:41:36 -08:00
db_memtable_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
db_merge_operand_test.cc
New API to get all merge operands for a Key (#5604)
2019-08-06 14:26:44 -07:00
db_merge_operator_test.cc
New API to get all merge operands for a Key (#5604)
2019-08-06 14:26:44 -07:00
db_options_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
db_properties_test.cc
Refactor/consolidate legacy Bloom implementation details (#5784)
2019-09-16 16:17:09 -07:00
db_range_del_test.cc
Fix merging range tombstone covering put during flush/compaction (#5406)
2019-06-04 10:24:14 -07:00
db_sst_test.cc
Fix bugs in WAL trash file handling (#5520)
2019-07-06 21:07:32 -07:00
db_statistics_test.cc
Make statistics's stats_level change thread-safe (#5030)
2019-03-01 10:42:09 -08:00
db_table_properties_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
db_tailing_iter_test.cc
Remove managed iterator
2018-07-17 14:43:18 -07:00
db_test2.cc
Allow users to stop manual compactions (#3971)
2019-09-16 21:01:47 -07:00
db_test_util.cc
exclude TEST_ENV_URI from rocksdb lite (#5686)
2019-08-10 19:15:05 -07:00
db_test_util.h
Support loading custom objects in unit tests (#5676)
2019-08-09 15:12:08 -07:00
db_test.cc
Allow users to stop manual compactions (#3971)
2019-09-16 21:01:47 -07:00
db_universal_compaction_test.cc
Refactor UniversalCompactionPicker code a little bit (#5639)
2019-09-16 10:51:11 -07:00
db_wal_test.cc
Adding DB::GetCurrentWalFile() API as a repliction/backup helper (#5765)
2019-09-04 12:10:17 -07:00
db_write_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
dbformat_test.cc
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
dbformat.cc
Avoid user key copying for Get/Put/Write with user-timestamp (#5502)
2019-07-25 15:27:39 -07:00
dbformat.h
Use delete to disable automatic generated methods. (#5009)
2019-09-11 18:09:00 -07:00
deletefile_test.cc
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
error_handler_test.cc
Move test related files under util/ to test_util/ (#5377)
2019-05-30 11:25:51 -07:00
error_handler.cc
Make format
2019-05-31 15:24:43 -07:00
error_handler.h
Fix typos in comments (#4456)
2018-10-04 20:46:50 -07:00
event_helpers.cc
Fix wrong info log printing for num_range_deletions (#5617)
2019-07-23 19:38:16 -07:00
event_helpers.h
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
experimental.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
external_sst_file_basic_test.cc
Allow ingesting overlapping files (#5539)
2019-09-13 14:49:47 -07:00
external_sst_file_ingestion_job.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
external_sst_file_ingestion_job.h
Allow ingesting overlapping files (#5539)
2019-09-13 14:49:47 -07:00
external_sst_file_test.cc
Fix a bug in file ingestion (#5760)
2019-08-30 18:29:07 -07:00
fault_injection_test.cc
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
file_indexer_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
file_indexer.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
file_indexer.h
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
filename_test.cc
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
flush_job_test.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
flush_job.cc
simplify include directive involving inttypes (#5402)
2019-06-06 13:56:07 -07:00
flush_job.h
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
flush_scheduler.cc
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
flush_scheduler.h
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
forward_iterator_bench.cc
simplify include directive involving inttypes (#5402)
2019-06-06 13:56:07 -07:00
forward_iterator.cc
Add more callers for table reader. (#5454)
2019-06-20 14:31:48 -07:00
forward_iterator.h
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
import_column_family_job.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
import_column_family_job.h
Export Import sst files (#5495)
2019-07-17 12:27:14 -07:00
import_column_family_test.cc
Fix tsan and valgrind failures in import_column_family_test
2019-07-19 13:25:36 -07:00
internal_stats.cc
Rename InternalDBStatsType enum names (#5779)
2019-09-06 17:31:10 -07:00
internal_stats.h
Rename InternalDBStatsType enum names (#5779)
2019-09-06 17:31:10 -07:00
job_context.h
WritePrepared: Fix visible key compacted out by compaction (#4883)
2019-01-15 21:34:38 -08:00
listener_test.cc
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
log_format.h
Fix an inaccurate comment (#4315)
2018-08-24 18:13:20 -07:00
log_reader.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
log_reader.h
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
log_test.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
log_writer.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
log_writer.h
Use delete to disable automatic generated methods. (#5009)
2019-09-11 18:09:00 -07:00
logs_with_prep_tracker.cc
Skip deleted WALs during recovery
2018-05-03 15:43:09 -07:00
logs_with_prep_tracker.h
Skip deleted WALs during recovery
2018-05-03 15:43:09 -07:00
lookup_key.h
Avoid user key copying for Get/Put/Write with user-timestamp (#5502)
2019-07-25 15:27:39 -07:00
malloc_stats.cc
Support jemalloc compiled with --with-jemalloc-prefix (#5521)
2019-07-02 12:07:01 -07:00
malloc_stats.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
manual_compaction_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
memtable_list_test.cc
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
memtable_list.cc
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
memtable_list.h
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
memtable.cc
Add insert hints for each writebatch (#5728)
2019-09-12 17:15:18 -07:00
memtable.h
Add insert hints for each writebatch (#5728)
2019-09-12 17:15:18 -07:00
merge_context.h
Introduce a new MultiGet batching implementation (#5011)
2019-04-11 14:28:26 -07:00
merge_helper_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
merge_helper.cc
Fix merging range tombstone covering put during flush/compaction (#5406)
2019-06-04 10:24:14 -07:00
merge_helper.h
Remove v1 RangeDelAggregator (#4778)
2018-12-17 17:33:46 -08:00
merge_operator.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
merge_test.cc
Make format
2019-05-31 15:24:43 -07:00
obsolete_files_test.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
options_file_test.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
perf_context_test.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
pinned_iterators_manager.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
plain_table_db_test.cc
Fix Appveyor build due to signed/unsigned comparison
2019-09-10 14:34:37 -07:00
pre_release_callback.h
WritePrepared: reduce prepared_mutex_ overhead (#5420)
2019-06-10 11:53:31 -07:00
prefix_test.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
range_del_aggregator_bench.cc
Move some memory related files from util/ to memory/ (#5382)
2019-05-30 17:44:09 -07:00
range_del_aggregator_test.cc
Move test related files under util/ to test_util/ (#5377)
2019-05-30 11:25:51 -07:00
range_del_aggregator.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
range_del_aggregator.h
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
range_tombstone_fragmenter_test.cc
Move test related files under util/ to test_util/ (#5377)
2019-05-30 11:25:51 -07:00
range_tombstone_fragmenter.cc
simplify include directive involving inttypes (#5402)
2019-06-06 13:56:07 -07:00
range_tombstone_fragmenter.h
Initialized pinned_pos_ and pinned_seq_pos_ in FragmentedRangeTombstoneIterator (#5720)
2019-09-05 17:30:29 -07:00
read_callback.h
WriteUnPrepared: improve read your own write functionality (#5573)
2019-07-23 08:08:19 -07:00
repair_test.cc
Organizing rocksdb/db directory
2019-05-31 11:57:01 -07:00
repair.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
snapshot_checker.h
WritePrepared: fix issue with snapshot released during compaction (#4858)
2019-01-16 09:55:32 -08:00
snapshot_impl.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
snapshot_impl.h
Refresh snapshot list during long compactions (2nd attempt) (#5278)
2019-05-03 17:30:22 -07:00
table_cache.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
table_cache.h
Support row cache with batched MultiGet (#5706)
2019-08-28 16:11:56 -07:00
table_properties_collector_test.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
table_properties_collector.cc
Feature for sampling and reporting compressibility (#4842)
2019-03-18 12:15:34 -07:00
table_properties_collector.h
Feature for sampling and reporting compressibility (#4842)
2019-03-18 12:15:34 -07:00
transaction_log_impl.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
transaction_log_impl.h
reuse scratch buffer in transaction_log_reader (#5702)
2019-08-26 11:26:29 -07:00
trim_history_scheduler.cc
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
trim_history_scheduler.h
Refactor trimming logic for immutable memtables (#5022)
2019-08-23 13:55:34 -07:00
version_builder_test.cc
Move some logging related files to logging/ (#5387)
2019-05-31 17:23:59 -07:00
version_builder.cc
Lower the risk for users to run options.force_consistency_checks = true (#5744)
2019-08-29 14:07:37 -07:00
version_builder.h
Lower the risk for users to run options.force_consistency_checks = true (#5744)
2019-08-29 14:07:37 -07:00
version_edit_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
version_edit.cc
Persistent globally unique DB ID in manifest (#5725)
2019-09-03 08:52:24 -07:00
version_edit.h
Persistent globally unique DB ID in manifest (#5725)
2019-09-03 08:52:24 -07:00
version_set_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
version_set.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
version_set.h
Use delete to disable automatic generated methods. (#5009)
2019-09-11 18:09:00 -07:00
wal_manager_test.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
wal_manager.cc
Divide file_reader_writer.h and .cc (#5803)
2019-09-16 10:33:51 -07:00
wal_manager.h
Adding DB::GetCurrentWalFile() API as a repliction/backup helper (#5765)
2019-09-04 12:10:17 -07:00
write_batch_base.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_batch_internal.h
Add insert hints for each writebatch (#5728)
2019-09-12 17:15:18 -07:00
write_batch_test.cc
upgrade gtest 1.7.0 => 1.8.1 for json result writing
2019-09-09 11:24:11 -07:00
write_batch.cc
Add insert hints for each writebatch (#5728)
2019-09-12 17:15:18 -07:00
write_callback_test.cc
WritePrepared: reduce prepared_mutex_ overhead (#5420)
2019-06-10 11:53:31 -07:00
write_callback.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_controller_test.cc
Move test related files under util/ to test_util/ (#5377)
2019-05-30 11:25:51 -07:00
write_controller.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_controller.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
write_thread.cc
Option to make write group size configurable (#5759)
2019-09-11 18:28:33 -07:00
write_thread.h
Option to make write group size configurable (#5759)
2019-09-11 18:28:33 -07:00