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https://issues.apache.org/jira/browse/THRIFT-4223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16044913#comment-16044913
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James E. King, III commented on THRIFT-4223:
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Once we listen(), connection requests will queue up until accept() is called so
I do not see a race in that area.
Here's a page that describes it in gross detail:
http://veithen.github.io/2014/01/01/how-tcp-backlog-works-in-linux.html
> Add support to the isServing() method for the C++ library
> ---------------------------------------------------------
>
> Key: THRIFT-4223
> URL: https://issues.apache.org/jira/browse/THRIFT-4223
> Project: Thrift
> Issue Type: Improvement
> Components: C++ - Library
> Affects Versions: 0.10.0
> Environment: Linux
> Reporter: Erick Arroyo
> Assignee: James E. King, III
> Fix For: 0.11.0
>
> Original Estimate: 8h
> Remaining Estimate: 8h
>
> It is important to add support to the isServing() method for the C++ library
> and in the other supported languages. This method is already exposed on the
> Java library.
> This method is very useful to determine when exactly the server is in
> listening state and also can be used to fix for example race conditions
> between the server and the client.
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