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From "Kristian Waagan (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5617) Improve process handling in SpawnedProcess
Date Wed, 15 Feb 2012 11:42:59 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kristian Waagan updated DERBY-5617:
-----------------------------------

    Attachment: derby-5617-1a-spawnedprocess_improvements.diff

Attaching patch 1a, implementing the items a-c.

This patch has been tested by Myrna (see DERBY-5601), and seems to be ready for commit.

Committed the patch to trunk with revision 1244444.
                
> Improve process handling in SpawnedProcess
> ------------------------------------------
>
>                 Key: DERBY-5617
>                 URL: https://issues.apache.org/jira/browse/DERBY-5617
>             Project: Derby
>          Issue Type: Improvement
>          Components: Test
>    Affects Versions: 10.9.0.0
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>         Attachments: derby-5617-1a-spawnedprocess_improvements.diff
>
>
> SpawnedProcess wraps a java.lang.Process and performs various tasks related to process
handling. Using external processes from Java is somewhat tricky, in part because of sub-optimal
behavior in the methods provided by Process.
> I plan to implement the following improvements:
>  a) Kill the process after a timeout (the clock starts ticking when you create the SpawnedProcess
instance).
>  b) Don't let interrupts stop SpawnedProcess from waiting for / terminating the process.
>  c) Clean up the Process properly.

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