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android / platform / external / puffin / refs/tags/android-wear-8.0.0_r2
tag7ba17594d23dec8f94bf26fcf0f100593de282b9
taggerThe Android Open Source Project <initial-contribution@android.com>Thu Dec 06 11:30:52 2018 -0800
object6d30f049ed4cfc5d4bfa4fdbf6529c9e3522e951 
Android Wear 8.0.0 Release 2 (OWDS.181106.001)
commit6d30f049ed4cfc5d4bfa4fdbf6529c9e3522e951[log] [tgz]
authorSen Jiang <senj@google.com>Mon Nov 12 19:12:10 2018 -0800
committerSen Jiang <senj@google.com>Mon Nov 12 19:17:07 2018 -0800
treea6c26a5ff76d219c5ff2c2bbd89fedd45db6a73e
parenta46714d7fa8de8260e4b575ba59785c400c4b38c [diff]
Allow gzip with padding data in LocateDeflatesInGzip.

Files stored in filesystem are padded with 0 to fill the block, we
shouldn't return false in this case.

Test: generate a delta payload extracting deflates in gzip
Test: puffin_unittest
Change-Id: I90d4f76243ea686913dab802476b53a08c6fccee
2 files changed
tree: a6c26a5ff76d219c5ff2c2bbd89fedd45db6a73e
  1. scripts/
  2. src/
  3. puffin ⇨ .
  4. .clang-format
  5. Android.bp
  6. BUILD.gn
  7. libpuffdiff.pc
  8. libpuffpatch.pc
  9. LICENSE
  10. Makefile
  11. OWNERS
  12. PRESUBMIT.cfg
  13. PREUPLOAD.cfg
  14. README.md
  15. README.version
README.md

Puffin

Source code for Puffin: A utility for deterministic DEFLATE recompression.

TODO(ahassani): Describe the directory structure and how-tos.

Glossary

  • Alphabet A value that occurs in the input stream. It can be either a literal:[0..255], and end of block sign [256], a length[257..285], or a distance [0..29].

  • Huffman code A variable length code representing the Huffman encoded of an alphabet. Huffman codes can be created uniquely using Huffman code length array.

  • Huffman code array An array which an array index identifies a Huffman code and the array element in that index represents the corresponding alphabet. Throughout the code, Huffman code arrays are identified by vectors with postfix hcodes_.

  • Huffman reverse code array An array which an array index identifies an alphabet and the array element in that index contains the Huffman code of the alphabet. Throughout the code, The Huffman reverse code arrays are identified by vectors with postfix rcodes_.

  • Huffman code length The number of bits in a Huffman code.

  • Huffman code length array An array of Huffman code lengths with the array index as the alphabet. Throughout the code, Huffman code length arrays are identified by vectors with postfix lens_.