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From "Matt Massie (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AVRO-344) Complete C rewrite
Date Fri, 15 Jan 2010 23:20:54 GMT

    [ https://issues.apache.org/jira/browse/AVRO-344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12800995#action_12800995

Matt Massie commented on AVRO-344:

After applying the patch, run the following two commands in lang/c:

% chmod u+x build.sh
% chmod u+x jansson/test/*test* jansson/test/*.py

> Complete C rewrite
> ------------------
>                 Key: AVRO-344
>                 URL: https://issues.apache.org/jira/browse/AVRO-344
>             Project: Avro
>          Issue Type: Improvement
>            Reporter: Matt Massie
>            Assignee: Matt Massie
>             Fix For: 1.3.0
>         Attachments: AVRO-344.patch, avro-c-1.2.0-dev.tar.gz
> This JIRA is for tracking what I hope will be the last C rewrite.
> This rewrite
> * removes all dependencies on APR and APR-util.  Memory is managed now using reference
counting.  Hashes implemented using public domain code from Berkeley.  List implemented using
BSD license queue.h
> * uses the jansson JSON parser for parsing schemas.  The Jansson parser is a high-quality
JSON parser in C with an Apache-friendly MIT license
> * there is a well-defined object framework that serves both datum and schema datatypes
and provides reference counting.  Schemas and datum/values are no longer part of a single
monolithic structure now.
> * you can now create a schema from json or by hand in code
> * updated to support the new AVRO-163 build layout
> * properly checks avro identifiers
> * probes for the endianness of the architecture in order to optimize endianness flipping,
e.g. only on big-endian machines are little-endian conversions done.
> * documentation is now handled by asciidoc instead of doxygen.
> * increased number of schema unit tests
> * provides much more schema processing functionality like recursively checking for equality,
checking for matches with promotion, and recursive schema copy.
> * lots of bug fixes
> This code is by no means complete.  Most of the schema processing code is finished along
with the primitive encoders for the binary format but I still need to complete the read/write
path for complex types.
> I'm submitting this Jira to make the work public and to solicit feedback in prep for
the 1.3 release.

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