rocksdb/examples
Peter Dillinger fd3e0f43b3 Require C++17 (#9481)
Summary:
Drop support for some old compilers by requiring C++17 standard
(or higher). See https://github.com/facebook/rocksdb/issues/9388

First modification based on this is to remove some conditional compilation in slice.h (also
better for ODR)

Also in this PR:
* Fix some Makefile formatting that seems to affect ASSERT_STATUS_CHECKED config in
some cases
* Add c_test to NON_PARALLEL_TEST in Makefile
* Fix a clang-analyze reported "potential leak" in lru_cache_test
* Better "compatibility" definition of DEFINE_uint32 for old versions of gflags
* Fix a linking problem with shared libraries in Makefile (`./random_test: error while loading shared libraries: librocksdb.so.6.29: cannot open shared object file: No such file or directory`)
* Always set ROCKSDB_SUPPORT_THREAD_LOCAL and use thread_local (from C++11)
  * TODO in later PR: clean up that obsolete flag
* Fix a cosmetic typo in c.h (https://github.com/facebook/rocksdb/issues/9488)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9481

Test Plan:
CircleCI config substantially updated.

* Upgrade to latest Ubuntu images for each release
* Generally prefer Ubuntu 20, but keep a couple Ubuntu 16 builds with oldest supported
compilers, to ensure compatibility
* Remove .circleci/cat_ignore_eagain except for Ubuntu 16 builds, because this is to work
around a kernel bug that should not affect anything but Ubuntu 16.
* Remove designated gcc-9 build, because the default linux build now uses GCC 9 from
Ubuntu 20.
* Add some `apt-key add` to fix some apt "couldn't be verified" errors
* Generally drop SKIP_LINK=1; work-around no longer needed
* Generally `add-apt-repository` before `apt-get update` as manual testing indicated the
reverse might not work.

Travis:
* Use gcc-7 by default (remove specific gcc-7 and gcc-4.8 builds)
* TODO in later PR: fix s390x "Assembler messages: Error: invalid switch -march=z14" failure

AppVeyor:
* Completely dropped because we are dropping VS2015 support and CircleCI covers
VS >= 2017

Also local testing with old gflags (out of necessity when using ROCKSDB_NO_FBCODE=1).

Reviewed By: mrambacher

Differential Revision: D33946377

Pulled By: pdillinger

fbshipit-source-id: ae077c823905b45370a26c0103ada119459da6c1
2022-02-04 17:13:10 -08:00
..
.gitignore Support for single-primary, multi-secondary instances (#4899) 2019-03-26 16:45:31 -07:00
CMakeLists.txt add WITH_EXAMPLES options to cmake and cleanups. (#6580) 2020-06-18 18:00:04 -07:00
Makefile Require C++17 (#9481) 2022-02-04 17:13:10 -08:00
README.md Improve examples/README.md 2015-12-16 16:27:37 +01:00
c_simple_example.c Make examples work on Windows (#7304) 2020-09-01 18:03:50 -07:00
column_families_example.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
compact_files_example.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
compaction_filter_example.cc Add (& fix) some simple source code checks (#8821) 2021-09-07 21:19:27 -07:00
multi_processes_example.cc Make examples work on Windows (#7304) 2020-09-01 18:03:50 -07:00
optimistic_transaction_example.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
options_file_example.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
rocksdb_option_file_example.ini Remove deprecated option DBOptions::skip_log_error_on_recovery (#9434) 2022-01-28 01:46:04 -08:00
simple_example.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
transaction_example.cc Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00

README.md

  1. Compile RocksDB first by executing make static_lib in parent dir
  2. Compile all examples: cd examples/; make all