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Levi Tamasi 30fb9dd50f Introduce a helper method UncompressData (#7434) 
Summary:
The patch introduces a helper method in `util/compression.h` called `UncompressData`
that dispatches calls to the correct uncompression method based on type, and changes
`UncompressBlockContentsForCompressionType` and `Benchmark::Uncompress` in
`db_bench` so they are implemented in terms of the new method. This eliminates
some code duplication. (`Benchmark::Compress` is also updated to use the previously
introduced `CompressData` helper.)

In addition, the patch brings the implementation of `Snappy_Uncompress` into sync with
the other uncompression methods by making the method compute the buffer size and allocate
the buffer itself. Finally, the patch eliminates some potentially risky back-and-forth conversions
between various unsigned and signed integer types by exposing the size of the allocated buffer
as a `size_t` instead of an `int`.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7434

Test Plan:
`make check`
`./db_bench -benchmarks=compress,uncompress --compression_type ...`

Reviewed By: riversand963

Differential Revision: D23900011

Pulled By: ltamasi

fbshipit-source-id: b25df63ceec4639889be94acb22eb53e530c54e0
2020-09-25 09:01:45 -07:00
..
advisor remediation of S205607 2020-07-17 17:20:49 -07:00
block_cache_analyzer C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
dump Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
rdb Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
analyze_txn_stress_test.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
auto_sanity_test.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
benchmark.sh Fixed typo in benchmark.sh (#6434) 2020-02-19 17:08:02 -08:00
benchmark_leveldb.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
blob_dump.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
check_all_python.py Allow missing "unversioned" python, as in CentOS 8 (#6883) 2020-05-29 11:29:23 -07:00
check_format_compatible.sh Fix HISTORY.md and check_format_compatible.sh for 6.13 branch (#7401) 2020-09-17 09:00:13 -07:00
CMakeLists.txt Mark dependencies as PRIVATE and fix missing dependencies in tools. (#6790) 2020-05-12 21:07:55 -07:00
db_bench.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
db_bench_tool.cc Introduce a helper method UncompressData (#7434) 2020-09-25 09:01:45 -07:00
db_bench_tool_test.cc Fix db_bench_tool_test. Fixes 7341 (#7344) 2020-09-09 09:07:16 -07:00
db_crashtest.py Fix backup/restore in stress/crash test (#7357) 2020-09-08 10:50:19 -07:00
db_repl_stress.cc More Makefile Cleanup (#7097) 2020-07-09 14:35:17 -07:00
db_sanity_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
dbench_monitor Fix /bin/bash shebangs 2017-08-03 15:56:46 -07:00
Dockerfile adding docker build script and dockerfile 2015-05-22 16:03:39 -07:00
generate_random_db.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
ingest_external_sst.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
io_tracer_parser.cc Add IO Tracer Parser (#7333) 2020-09-23 15:50:26 -07:00
io_tracer_parser_test.cc Add IO Tracer Parser (#7333) 2020-09-23 15:50:26 -07:00
io_tracer_parser_tool.cc Add IO Tracer Parser (#7333) 2020-09-23 15:50:26 -07:00
io_tracer_parser_tool.h Add IO Tracer Parser (#7333) 2020-09-23 15:50:26 -07:00
ldb.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
ldb_cmd.cc add ldb unsafe_remove_sst_file subcommand (#7335) 2020-09-03 16:54:51 -07:00
ldb_cmd_impl.h add ldb unsafe_remove_sst_file subcommand (#7335) 2020-09-03 16:54:51 -07:00
ldb_cmd_test.cc Store FileSystemPtr object that contains FileSystem ptr (#7180) 2020-08-12 17:31:23 -07:00
ldb_test.py Allow missing "unversioned" python, as in CentOS 8 (#6883) 2020-05-29 11:29:23 -07:00
ldb_tool.cc add ldb unsafe_remove_sst_file subcommand (#7335) 2020-09-03 16:54:51 -07:00
pflag Fix /bin/bash shebangs 2017-08-03 15:56:46 -07:00
reduce_levels_test.cc Replace reinterpret_cast with static_cast_with_check (#7067) 2020-07-02 19:25:41 -07:00
regression_test.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
report_lite_binary_size.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
rocksdb_dump_test.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
run_flash_bench.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
run_leveldb.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
sample-dump.dmp First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
sst_dump.cc Implement a new subcommand "identify" for sst_dump (#6943) 2020-06-08 13:58:28 -07:00
sst_dump_test.cc Fix compile error for old gcc-4.8 (#7358) 2020-09-08 12:09:34 -07:00
sst_dump_tool.cc Add sst_file_dumper status check (#7315) 2020-09-04 19:26:42 -07:00
trace_analyzer.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
trace_analyzer_test.cc decouple the dependency of trace_analyzer_test unit test (#6941) 2020-06-08 10:36:43 -07:00
trace_analyzer_tool.cc Bring the Configurable options together (#5753) 2020-09-14 17:01:01 -07:00
trace_analyzer_tool.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
verify_random_db.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
write_external_sst.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
write_stress.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
write_stress_runner.py Allow missing "unversioned" python, as in CentOS 8 (#6883) 2020-05-29 11:29:23 -07:00