From: Amos Jeffries <squid3@treenet.co.nz>
Date: Tue, 9 Jun 2015 01:54:56 +0000 (-0700)
Subject: Parser-NG: Transfer-Encoding:chunked Parser
X-Git-Tag: merge-candidate-3-v1~86
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2cfe6c018fc60855ca0933878c3aa40f29c990cc;p=thirdparty%2Fsquid.git

Parser-NG: Transfer-Encoding:chunked Parser

Remove several performance regressions incurred in earlier Parser-NG
updates by refactoring the class ChunkedCodingParser to a class
Http1::TeChunkedParser which parses an SBuf I/O buffer for chunked
encoding data and (for now) copies the chunk payloads into a MemBuf buffer.

The new class is inherited from Http1::Parser and presents the same API.
Chunk Trailers are now available via the Parser API mimeHeader() method
- although none of the rest of Squid makes use of that data yet. It
implements parsing using a ::Parser::Tokenizer for (nearly) compliant
protocol tokenization. With enumerated states instead of a dynamic
function-pointer chain.


Measurements:
 Co-Advisor shows no compliance change.
 Polygraph shows approx 1% speed improvement over trunk.
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2cfe6c018fc60855ca0933878c3aa40f29c990cc