Hui Xiao f6339de0d2 Clarify some SequentialFileReader::Read logic (#10002) ...

Summary:
**Context/Summary:**
The logic related to PositionedRead in SequentialFileReader::Read confused me a bit as discussed here https://github.com/facebook/rocksdb/pull/9973#discussion_r872869256. Therefore I added a drawing with help from cbi42.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10002

Test Plan: - no code change

Reviewed By: anand1976, cbi42

Differential Revision: D36422632

Pulled By: hx235

fbshipit-source-id: 9a8311d2365564f90d216c430f542fc11b2d9cde

2022-05-17 10:24:04 -07:00

..

delete_scheduler_test.cc

Remove own ToString() (#9955)

2022-05-06 13:03:58 -07:00

delete_scheduler.cc

Skip directory fsync for filesystem btrfs (#8903)

2021-11-03 12:21:27 -07:00

delete_scheduler.h

Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033)

2021-03-15 04:34:11 -07:00

file_prefetch_buffer.cc

Fix bug in async_io path which reads incorrect length (#9916)

2022-04-27 22:33:29 -07:00

file_prefetch_buffer.h

Use std::numeric_limits<> (#9954)

2022-05-05 13:08:21 -07:00

file_util.cc

Avoid usage of ReopenWritableFile in db_stress (#9649)

2022-03-04 10:30:10 -08:00

file_util.h

Avoid usage of ReopenWritableFile in db_stress (#9649)

2022-03-04 10:30:10 -08:00

filename.cc

fixing issue #8345 RocksDB does not work when using UNC network paths (#9384)

2022-03-30 15:55:31 -07:00

filename.h

Add (Live)FileStorageInfo API (#8968)

2021-10-16 10:04:32 -07:00

line_file_reader.cc

Replace Status with IOStatus in the backupable_db (#8820)

2021-09-15 15:09:48 -07:00

line_file_reader.h

Replace Status with IOStatus in the backupable_db (#8820)

2021-09-15 15:09:48 -07:00

prefetch_test.cc

Add stats related to async prefetching (#9845)

2022-04-25 21:58:22 -07:00

random_access_file_reader_test.cc

Add rate limiter priority to ReadOptions (#9424)

2022-02-16 23:18:14 -08:00

random_access_file_reader.cc

Update stats for Read and ReadAsync in random_access_file_reader for async prefetching (#9810)

2022-04-06 14:26:53 -07:00

random_access_file_reader.h

Update stats for Read and ReadAsync in random_access_file_reader for async prefetching (#9810)

2022-04-06 14:26:53 -07:00

read_write_util.cc

Move old files to warm tier in FIFO compactions (#8310)

2021-08-09 12:51:14 -07:00

read_write_util.h

Refactor: add LineFileReader and Status::MustCheck (#8026)

2021-03-09 20:12:38 -08:00

readahead_file_info.h

Reuse internal auto readhead_size at each Level (expect L0) for Iterations (#9056)

2021-11-10 16:20:04 -08:00

readahead_raf.cc

Make StringEnv, StringSink, StringSource use FS classes (#7786)

2021-01-04 16:01:01 -08:00

readahead_raf.h

Make StringEnv, StringSink, StringSource use FS classes (#7786)

2021-01-04 16:01:01 -08:00

sequence_file_reader.cc

Clarify some SequentialFileReader::Read logic (#10002)

2022-05-17 10:24:04 -07:00

sequence_file_reader.h

Add listener API that notifies on IOError (#9177)

2021-11-18 17:11:19 -08:00

sst_file_manager_impl.cc

Fix race condition in SstFileManagerImpl error recovery code (#9435)

2022-01-25 23:22:58 -08:00

sst_file_manager_impl.h

Fix typo about file/sst_file_manager_impl.h (#9799)

2022-04-04 09:57:33 -07:00

writable_file_writer.cc

Rate-limit automatic WAL flush after each user write (#9607)

2022-03-08 13:19:39 -08:00

writable_file_writer.h

Conditionally declare and define variable that is unused in LITE mode (#9854)

2022-04-18 14:16:35 -07:00