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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] Updated: (IO-201) CountingInputStream/CountingOutputStream only partially synchronized
Date Thu, 26 Mar 2009 14:02:02 GMT

     [ https://issues.apache.org/jira/browse/IO-201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebb updated IO-201:
--------------------

    Summary: CountingInputStream/CountingOutputStream only partially synchronized  (was: CountingInputStream
is partially synchronized)

> CountingInputStream/CountingOutputStream only partially synchronized
> --------------------------------------------------------------------
>
>                 Key: IO-201
>                 URL: https://issues.apache.org/jira/browse/IO-201
>             Project: Commons IO
>          Issue Type: Bug
>          Components: Filters
>    Affects Versions: 1.4
>            Reporter: Sebb
>
> CountingInputStream is only partially synchronized.
> The count is not synchronized when it is updated in read operations, so is not guaranteed
to be published correctly
> The synchronization could be removed without loss of functionality.
> Not sure it makes sense to share a stream between threads anyway, as the underlying stream
is unlikely to be thread-safe.
> If only one thread reads the stream, then the count field could be made volatile.
> This would allow other threads to read the count safely.

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