protobuf

Commit Graph

Author	SHA1	Message	Date
Josh Haberman	7d3e2bd2c4	Sync with 8 months of Google-internal development. Many things have changed and been simplified. The memory-management story for upb_def and upb_handlers is much more robust; upb_def and upb_handlers should be fairly stable interfaces now. There is still much work to do for the runtime component (upb_sink).	12 years ago
Joshua Haberman	86bad61b76	Sync from internal Google development. Many improvements, too many to mention. One significant perf regression warrants investigation: omitfp.parsetoproto2_googlemessage1.upb_jit: 343 -> 252 (-26.53) plain.parsetoproto2_googlemessage1.upb_jit: 334 -> 251 (-24.85) 25% regression for this benchmark is bad, but since I don't think there's any fundamental design issue that caused it I'm going to go ahead with the commit anyway. Can investigate and fix later. Other benchmarks were neutral or showed slight improvement.	13 years ago
Joshua Haberman	1bcab1377d	Sync with internal Google development. This breaks the open-source build, will follow up with a change to fix it.	13 years ago
Joshua Haberman	b5f5ee867e	Refinement of upb_bytesrc interface. Added a upb_byteregion that tracks a region of the input buffer; decoders use this instead of using a upb_bytesrc directly. upb_byteregion is also used as the way of passing a string to a upb_handlers callback. This symmetry makes decoders compose better; if you want to take a parsed string and decode it as something else, you can take the string directly from the callback and feed it as input to another parser. A commented-out version of a pinning interface is present; I decline to actually implement it (and accept its extra complexity) until/unless it is clear that it is actually a win. But it is included as a proof-of-concept, to show that it fits well with the existing interface.	13 years ago
Joshua Haberman	10265aa56b	Directory restructure. Includes are now via upb/foo.h. Files specific to the protobuf format are now in upb/pb (the core library is concerned with message definitions, handlers, and byte streams, but knows nothing about any particular serializationf format).	14 years ago
Joshua Haberman	6a1f3a6693	Major refactoring: upb_string is gone in favor of upb_strref.	14 years ago
Joshua Haberman	f74534b42a	Decoder redesign in preparation for packed fields and start/endseq.	14 years ago
Joshua Haberman	4a99abba12	Refactor varint encoding/decoding.	14 years ago
Joshua Haberman	9eb4d695c4	First rough version of the JIT. It can successfully parse SpeedMessage1. Preliminary results: 750MB/s on Core2 2.4GHz. This number is 2.5x proto2. This isn't apples-to-apples, because proto2 is parsing to a struct and we are just doing stream parsing, but for apps that are currently using proto2, this is the improvement they would see if they could move to stream-based processing. Unfortunately perf-regression-test.py is broken, and I'm not 100% sure why. It would be nice to fix it first (to ensure that there are no performance regressions for the table-based decoder) but I'm really impatient to get the JIT checked in.	14 years ago
Joshua Haberman	19517cc6f3	Switch to non-branching varint decoder.	14 years ago
Josh Haberman	b796c1b317	Update copyright to be Google Inc. This doesn't reflect any material change in how I will be working on upb, and I have no problem making this change. It's still open source under the BSD license, and I'll still be working on it well beyond the hours that constitute a normal job.	14 years ago
Joshua Haberman	0c6786c6fa	Split varint decoders into separate .h file. This makes it easier to benchmark and test the multiple possible implementations of varint decoding.	14 years ago

5 Commits (7d3e2bd2c4cfd1296d1d6f996d7548de26540d41)