[jira] [Comment Edited] (ARROW-2359) Type objects produced by DataType factory are not thread safe

["Dou Tu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-2359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16417069#comment-16417069 ] 

Dou Tu edited comment on ARROW-2359 at 3/28/18 9:21 AM:
--------------------------------------------------------

There is no shared data between two threads here!

So it must be thread-safe!

Should be junked.


was (Author: gaolizhou):
There is no global variables here!

So it must be thread-safe!

Should be junked.

> Type objects produced by DataType factory are not thread safe
> -------------------------------------------------------------
>
>                 Key: ARROW-2359
>                 URL: https://issues.apache.org/jira/browse/ARROW-2359
>             Project: Apache Arrow
>          Issue Type: Task
>          Components: C++
>            Reporter: Anton Shmigirilov
>            Priority: Minor
>              Labels: pull-request-available
>
> TYPE_FACTORY() macro that produces type shortcuts (boolean(), int32(), utf8() and so on) uses static shared_ptr inside. There are race conditions possible against shared_ptr's reference counter.



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