rocksdb

fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

mrambacher 12f1137355 Add a SystemClock class to capture the time functions of an Env (#7858 ) Summary: Introduces and uses a SystemClock class to RocksDB. This class contains the time-related functions of an Env and these functions can be redirected from the Env to the SystemClock. Many of the places that used an Env (Timer, PerfStepTimer, RepeatableThread, RateLimiter, WriteController) for time-related functions have been changed to use SystemClock instead. There are likely more places that can be changed, but this is a start to show what can/should be done. Over time it would be nice to migrate most (if not all) of the uses of the time functions from the Env to the SystemClock. There are several Env classes that implement these functions. Most of these have not been converted yet to SystemClock implementations; that will come in a subsequent PR. It would be good to unify many of the Mock Timer implementations, so that they behave similarly and be tested similarly (some override Sleep, some use a MockSleep, etc). Additionally, this change will allow new methods to be introduced to the SystemClock (like https://github.com/facebook/rocksdb/issues/7101 WaitFor) in a consistent manner across a smaller number of classes. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7858 Reviewed By: pdillinger Differential Revision: D26006406 Pulled By: mrambacher fbshipit-source-id: ed10a8abbdab7ff2e23d69d85bd25b3e7e899e90		4 years ago
.circleci	Small improvements to CircleCI Windows jobs (#7852 )	4 years ago
.github/workflows	Update clang-format-diff.py (#7609 )	4 years ago
buckifier	Fix use of positional args in BUCK rules (#7760 )	4 years ago
build_tools	Migrate away from Travis+Linux+amd64 (#7791 )	4 years ago
cache	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
cmake	Add `find_dependency()` in cmake config file. (#6791 )	5 years ago
coverage	Find the correct gcov (#6904 )	5 years ago
db	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
db_stress_tool	Increase the txn lock timeout in stress test (#7823 )	4 years ago
docs	Update github-pages and dependencies (#7850 )	4 years ago
env	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
examples	Bring the Configurable options together (#5753 )	4 years ago
file	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
fuzz	Update SstFileWriter fuzzer to iterate and check all key-value pairs (#7761 )	4 years ago
hdfs	fix build with 'USE_HDFS' on windows (#6950 )	5 years ago
include/rocksdb	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
java	Fixing Windows build using CMake (#7854 )	4 years ago
logging	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
memory	slightly improve jemalloc allocator API header (#7592 )	4 years ago
memtable	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
monitoring	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
options	Make StringEnv, StringSink, StringSource use FS classes (#7786 )	4 years ago
port	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
table	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
test_util	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
third-party	Fix Compilation on ppc64le using Clang 11 (#7713 )	4 years ago
tools	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
trace_replay	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
util	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
utilities	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
.clang-format	A script that automatically reformat affected lines	11 years ago
.gitignore	Fuzzing RocksDB (#7685 )	4 years ago
.lgtm.yml	Create lgtm.yml for LGTM.com C/C++ analysis (#4058 )	7 years ago
.travis.yml	Cleanup Travis CI config (#7848 )	4 years ago
.watchmanconfig	Added .watchmanconfig file to rocksdb repo (#5593 )	6 years ago
AUTHORS	Update RocksDB Authors File	7 years ago
CMakeLists.txt	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
CODE_OF_CONDUCT.md	Adopt Contributor Covenant	5 years ago
CONTRIBUTING.md	Add Code of Conduct	7 years ago
COPYING	Add GPLv2 as an alternative license.	8 years ago
DEFAULT_OPTIONS_HISTORY.md	options.delayed_write_rate use the rate of rate_limiter by default.	8 years ago
DUMP_FORMAT.md	First version of rocksdb_dump and rocksdb_undump.	10 years ago
HISTORY.md	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
INSTALL.md	Update the version of the dependencies used by the RocksJava static build (#4761 )	6 years ago
LANGUAGE-BINDINGS.md	Add RestoreDBFromLatestBackup to C API, add new C# package (#7092 )	5 years ago
LICENSE.Apache	Change RocksDB License	8 years ago
LICENSE.leveldb	Add back the LevelDB license file	8 years ago
Makefile	Update the versions of the test dependencies used for RocksJava (#7805 )	4 years ago
README.md	Fix the CI badge for ppc64le Jenkins (#7561 )	4 years ago
ROCKSDB_LITE.md	Fix some typos in comments and docs.	7 years ago
TARGETS	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
USERS.md	Add Apache Doris to USERS (#7865 )	4 years ago
Vagrantfile	Adding CentOS 7 Vagrantfile & build script	7 years ago
WINDOWS_PORT.md	#5145 , rename port/dirent.h to port/port_dirent.h to avoid compile err when use port dir as header dir output (#5152 )	6 years ago
appveyor.yml	Remove 2019 from appveyor (#7038 )	5 years ago
defs.bzl	Make testpilot recognize that these tests have coverage instrumentation	5 years ago
issue_template.md	Add Google Group to Issue Template	5 years ago
src.mk	Add a SystemClock class to capture the time functions of an Env (#7858 )	4 years ago
thirdparty.inc	Fix build jemalloc api (#5470 )	6 years ago

README.md

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)

This code is a library that forms the core building block for a fast key-value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it especially suitable for storing multiple terabytes of data in a single database.

Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples

See the github wiki for more explanation.

The public interface is in include/. Callers should not include or rely on the details of any other header files in this package. Those internal APIs may be changed without warning.

Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.