The directory utils/ is supposed to contain general-purpose utility
classes and functions, which are either already used across the project,
or are designed to be used across the project.
This patch moves 8 files out of utils/:
utils/advanced_rpc_compressor.hh
utils/advanced_rpc_compressor.cc
utils/advanced_rpc_compressor_protocol.hh
utils/stream_compressor.hh
utils/stream_compressor.cc
utils/dict_trainer.cc
utils/dict_trainer.hh
utils/shared_dict.hh
These 8 files together implement the compression feature of RPC.
None of them are used by any other Scylla component (e.g., sstables have
a different compression), or are ready to be used by another component,
so this patch moves all of them into message/, where RPC is implemented.
Theoretically, we may want in the future to use this cluster of classes
for some other component, but even then, we shouldn't just have these
files individually in utils/ - these are not useful stand-alone
utilities. One cannot use "shared_dict.hh" assuming it is some sort of
general-purpose shared hash table or something - it is completely
specific to compression and zstd, and specifically to its use in those
other classes.
Beyond moving these 8 files, this patch also contains changes to:
1. Fix includes to the 5 moved header files (.hh).
2. Fix configure.py, utils/CMakeLists.txt and message/CMakeLists.txt
for the three moved source files (.cc).
3. In the moved files, change from the "utils::" namespace, to the
"netw::" namespace used by RPC. Also needed to change a bunch
of callers for the new namespace. Also, had to add "utils::"
explicitly in several places which previously assumed the
current namespace is "utils::".
Signed-off-by: Nadav Har'El <nyh@scylladb.com>
Closes scylladb/scylladb#25149
Scylla in-source tests.
For details on how to run the tests, see docs/dev/testing.md
Shared C++ utils, libraries are in lib/, for Python - pylib/
alternator - Python tests which connect to a single server and use the DynamoDB API unit, boost, raft - unit tests in C++ cqlpy - Python tests which connect to a single server and use CQL topology* - tests that set up clusters and add/remove nodes cql - approval tests that use CQL and pre-recorded output rest_api - tests for Scylla REST API Port 9000 scylla-gdb - tests for scylla-gdb.py helper script nodetool - tests for C++ implementation of nodetool
If you can use an existing folder, consider adding your test to it. New folders should be used for new large categories/subsystems, or when the test environment is significantly different from some existing suite, e.g. you plan to start scylladb with different configuration, and you intend to add many tests and would like them to reuse an existing Scylla cluster (clusters can be reused for tests within the same folder).
To add a new folder, create a new directory, and then
copy & edit its suite.ini.