Commit Graph

6 Commits

Author SHA1 Message Date
Yurii Zubrytskyi a6633d7739 [zip] Save 1 malloc and memset for each added file in ZipWriter
+ add a benchmark for the function.

This change speeds up the function by about 3%: 910ns->880ns

Change-Id: I33c8c31de18d10eb38f109917ecbcbdda45b4034
2019-06-18 21:49:16 -07:00
Elliott Hughes e06a808037 Add a std::string overload to Next.
All but one existing caller actually wants a std::string.

Bug: http://b/129068177
Test: treehugger
Change-Id: I428c4453edaae74451db56e9542e4e462f08d43a
2019-05-22 19:05:44 -07:00
Elliott Hughes a22ac0f07e libziparchive: start moving to a non-ZipString StartIteration API.
Same issue as with FindEntry: using ZipString in the API forces all
callers to make sure they don't hit the ZipString length limits. Switch
to std::string_view and uniformly use the empty string as a way to
signal no prefix/suffix rather than nullptr.

Also use default arguments to make the common case of no prefix and no
suffix more convenient.

Also just use std::string to increase the lifetime of the provided
prefix/suffix rather than manual memory management.

Bug: http://b/129068177
Test: treehugger
Change-Id: I6675e39ce62fadd766386d77d27423013c17d6f7
2019-05-08 11:00:32 -07:00
Elliott Hughes b17bf521d5 libziparchive: report errors on over-long names.
Switch FindEntry and the ZipString constructor to std::string_view. This
lets us accept an over-long name so that we can reject it as too long.

Also fastboot changes to track the API change.

Bug: http://b/129068177
Test: treehugger
Change-Id: I7df7acd1fe2c46380b789c25f8909e0553e2d55e
2019-05-04 08:41:12 -07:00
Elliott Hughes 62322aae85 BENCHMARK_MAIN now requires a semicolon.
Bug: N/A
Test: ran tests
Change-Id: Ie61d8c775cf23877c1aa7025a50b5f8284ae5b08
2017-12-13 18:19:18 -08:00
Sebastian Pop 0a94c56463 add a performance benchmark for libziparchive
This patch adds two benchmarks that measure the performance of some
operations of libziparchive.

Both benchmarks are creating a temporary zip file containing file
names of uniformly distributed lengths.  The creation of the zip
file is not timed in the benchmarks.

- FindEntry_no_match tries to find an inexisting entry in the files
  of the zip archive, in order to force the code to examine all the
  files in the archive.

- Iterate_all_files uses the iterate function to list all the files
  in the archive.

Bug: N/A
Test: adb shell /data/ziparchive-benchmarks
Change-Id: Ibdb524ba1c5ae55caddf0416ebbc09f8b6df0021
2017-05-30 10:50:14 -07:00