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Posted to proton@qpid.apache.org by "Ted Ross (JIRA)" <ji...@apache.org> on 2012/11/07 20:34:12 UTC

[jira] [Created] (PROTON-125) Driver dies unnecessarily when poll returns error EINTR

Ted Ross created PROTON-125:
-------------------------------

             Summary: Driver dies unnecessarily when poll returns error EINTR
                 Key: PROTON-125
                 URL: https://issues.apache.org/jira/browse/PROTON-125
             Project: Qpid Proton
          Issue Type: Bug
          Components: proton-c
    Affects Versions: 0.2
            Reporter: Ted Ross
             Fix For: 0.3


If a program that uses proton-c receives a signal (SIGHUP, etc.), it will intermittently exit with a "System Call Interrupted" (EINTR) error.

The DIE_IFE macro that wraps the call to "poll" in the driver needs to handle this error to avoid unnecessary process exits.


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[jira] [Resolved] (PROTON-125) Driver dies unnecessarily when poll returns error EINTR

Posted by "Ted Ross (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/PROTON-125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Ross resolved PROTON-125.
-----------------------------

    Resolution: Fixed
      Assignee: Ted Ross
    
> Driver dies unnecessarily when poll returns error EINTR
> -------------------------------------------------------
>
>                 Key: PROTON-125
>                 URL: https://issues.apache.org/jira/browse/PROTON-125
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.2
>            Reporter: Ted Ross
>            Assignee: Ted Ross
>             Fix For: 0.3
>
>         Attachments: PROTON-125.patch
>
>
> If a program that uses proton-c receives a signal (SIGHUP, etc.), it will intermittently exit with a "System Call Interrupted" (EINTR) error.
> The DIE_IFE macro that wraps the call to "poll" in the driver needs to handle this error to avoid unnecessary process exits.

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[jira] [Resolved] (PROTON-125) Driver dies unnecessarily when poll returns error EINTR

Posted by "Ted Ross (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/PROTON-125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Ross resolved PROTON-125.
-----------------------------

    Resolution: Fixed

Re-resolved.  pn_driver_wait now returns an error rather than exiting the process.  It is up to the application to take appropriate action for poll errors.

                
> Driver dies unnecessarily when poll returns error EINTR
> -------------------------------------------------------
>
>                 Key: PROTON-125
>                 URL: https://issues.apache.org/jira/browse/PROTON-125
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.2
>            Reporter: Ted Ross
>            Assignee: Ted Ross
>             Fix For: 0.3
>
>         Attachments: PROTON-125.patch
>
>
> If a program that uses proton-c receives a signal (SIGHUP, etc.), it will intermittently exit with a "System Call Interrupted" (EINTR) error.
> The DIE_IFE macro that wraps the call to "poll" in the driver needs to handle this error to avoid unnecessary process exits.

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[jira] [Reopened] (PROTON-125) Driver dies unnecessarily when poll returns error EINTR

Posted by "Rafael H. Schloming (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/PROTON-125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rafael H. Schloming reopened PROTON-125:
----------------------------------------


This patch seems to have caused some problems with the python binding. Now when you control-C a python script that is blocking, it will just hang forever instead of exiting. I think we should actually make the driver return whatever error code it encounters instead of using the DIE_IFE macro. That way the caller can choose how to handle the condition rather than having the whole program dump. I can make messenger propogate the error and this will come out as a nice exception in python, and you can check for EINTR and ignore it if that's what makes sense for your code.
                
> Driver dies unnecessarily when poll returns error EINTR
> -------------------------------------------------------
>
>                 Key: PROTON-125
>                 URL: https://issues.apache.org/jira/browse/PROTON-125
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.2
>            Reporter: Ted Ross
>            Assignee: Ted Ross
>             Fix For: 0.3
>
>         Attachments: PROTON-125.patch
>
>
> If a program that uses proton-c receives a signal (SIGHUP, etc.), it will intermittently exit with a "System Call Interrupted" (EINTR) error.
> The DIE_IFE macro that wraps the call to "poll" in the driver needs to handle this error to avoid unnecessary process exits.

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[jira] [Updated] (PROTON-125) Driver dies unnecessarily when poll returns error EINTR

Posted by "Ted Ross (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/PROTON-125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Ross updated PROTON-125:
----------------------------

    Attachment: PROTON-125.patch

Proposed fix
                
> Driver dies unnecessarily when poll returns error EINTR
> -------------------------------------------------------
>
>                 Key: PROTON-125
>                 URL: https://issues.apache.org/jira/browse/PROTON-125
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.2
>            Reporter: Ted Ross
>             Fix For: 0.3
>
>         Attachments: PROTON-125.patch
>
>
> If a program that uses proton-c receives a signal (SIGHUP, etc.), it will intermittently exit with a "System Call Interrupted" (EINTR) error.
> The DIE_IFE macro that wraps the call to "poll" in the driver needs to handle this error to avoid unnecessary process exits.

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