Agniva De Sarker 72b501cb03 compress/lzw: add Reset method to Reader and Writer ... We add a Reset method which clears any internal state of an encoder or a decoder to let it be reused again as a new Writer or Reader respectively. We also export the encoder and decoder structs, renaming them to be Reader and Writer, and we guarantee that the underlying types from the constructors will always be Reader and Writer respectively. Benchmark results by reusing the encoder: on cpu: Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz name time/op Decoder/1e4-8 93.6µs ± 1% Decoder/1e-Reuse4-8 87.7µs ± 1% Decoder/1e5-8 877µs ± 1% Decoder/1e-Reuse5-8 860µs ± 3% Decoder/1e6-8 8.79ms ± 1% Decoder/1e-Reuse6-8 8.82ms ± 4% Encoder/1e4-8 168µs ± 2% Encoder/1e-Reuse4-8 160µs ± 1% Encoder/1e5-8 1.64ms ± 1% Encoder/1e-Reuse5-8 1.61ms ± 2% Encoder/1e6-8 16.2ms ± 6% Encoder/1e-Reuse6-8 15.8ms ± 2% name speed Decoder/1e4-8 107MB/s ± 1% Decoder/1e-Reuse4-8 114MB/s ± 1% Decoder/1e5-8 114MB/s ± 1% Decoder/1e-Reuse5-8 116MB/s ± 3% Decoder/1e6-8 114MB/s ± 1% Decoder/1e-Reuse6-8 113MB/s ± 5% Encoder/1e4-8 59.7MB/s ± 2% Encoder/1e-Reuse4-8 62.4MB/s ± 1% Encoder/1e5-8 61.1MB/s ± 1% Encoder/1e-Reuse5-8 62.0MB/s ± 2% Encoder/1e6-8 61.7MB/s ± 5% Encoder/1e-Reuse6-8 63.4MB/s ± 2% name alloc/op Decoder/1e4-8 21.8kB ± 0% Decoder/1e-Reuse4-8 50.0B ± 0% Decoder/1e5-8 21.8kB ± 0% Decoder/1e-Reuse5-8 70.4B ± 2% Decoder/1e6-8 21.9kB ± 0% Decoder/1e-Reuse6-8 271B ± 3% Encoder/1e4-8 77.9kB ± 0% Encoder/1e-Reuse4-8 4.17kB ± 0% Encoder/1e5-8 77.9kB ± 0% Encoder/1e-Reuse5-8 4.27kB ± 0% Encoder/1e6-8 77.9kB ± 0% Encoder/1e-Reuse6-8 5.22kB ± 0% name allocs/op Decoder/1e4-8 2.00 ± 0% Decoder/1e-Reuse4-8 1.00 ± 0% Decoder/1e5-8 2.00 ± 0% Decoder/1e-Reuse5-8 1.00 ± 0% Decoder/1e6-8 2.00 ± 0% Decoder/1e-Reuse6-8 1.00 ± 0% Encoder/1e4-8 3.00 ± 0% Encoder/1e-Reuse4-8 2.00 ± 0% Encoder/1e5-8 3.00 ± 0% Encoder/1e-Reuse5-8 2.00 ± 0% Encoder/1e6-8 3.00 ± 0% Encoder/1e-Reuse6-8 2.00 ± 0% Fixes #26535 Change-Id: Icde613fea6234a5bdce95f1e49910f5687e30b22 Reviewed-on: https://go-review.googlesource.com/c/go/+/273667 Trust: Agniva De Sarker <agniva.quicksilver@gmail.com> Trust: Joe Tsai <thebrokentoaster@gmail.com> Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>		2021-03-17 07:01:00 +00:00
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bzip2	all: update to use os.ReadFile, os.WriteFile, os.CreateTemp, os.MkdirTemp	2020-12-09 19:12:23 +00:00
flate	all: update to use os.ReadFile, os.WriteFile, os.CreateTemp, os.MkdirTemp	2020-12-09 19:12:23 +00:00
gzip	all: update to use filepath.WalkDir instead of filepath.Walk	2020-12-02 16:33:57 +00:00
lzw	compress/lzw: add Reset method to Reader and Writer	2021-03-17 07:01:00 +00:00
testdata	Revert "compress: move benchmark text from src/testdata to src/compress/testdata"	2018-10-01 16:16:21 +00:00
zlib	all: update to use os.ReadFile, os.WriteFile, os.CreateTemp, os.MkdirTemp	2020-12-09 19:12:23 +00:00