[jira] Commented: (HARMONY-6473) [classlib][nio]SocketChannel's bug when then main thread is in blocking read() and another thread trired to close it

["Ray Chen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HARMONY-6473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12845224#action_12845224 ] 

Ray Chen commented on HARMONY-6473:
-----------------------------------

For Linux, I have done some investigation, the main thread hang on the selectRead() of OSNetworkSystemLinux.c.

The main thread hang on the poll() system call, even another thread has closed this channel.

> [classlib][nio]SocketChannel's bug when then main thread is in blocking read() and another thread trired to close it
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-6473
>                 URL: https://issues.apache.org/jira/browse/HARMONY-6473
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>         Environment: Windows, Linux
>            Reporter: Ray Chen
>         Attachments: Harmony6473_TestCase.java
>
>
> On Windows, throws the java.net.SocketException, and the exception trace as following:
> Uncaught exception in main:
> java.net.SocketException: The socket argument is not a socket
> 	at org.apache.harmony.luni.platform.OSNetworkSystem.read(OSNetworkSystem.java)
> 	at org.apache.harmony.nio.internal.SocketChannelImpl.readImpl(SocketChannelImpl.java:455)
> 	at org.apache.harmony.nio.internal.SocketChannelImpl.read(SocketChannelImpl.java:373)
> 	at CMVC151710_SocketChannel.runTest(CMVC151710_SocketChannel.java:48)
> 	at CMVC151710_SocketChannel.main(CMVC151710_SocketChannel.java:14)
> On linux, the blocking read() hang forever

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