in reply to Data structures not returned via POE::Filter::Reference

As I see it, your plugin is calling print("task....") which is not in the POE::Filter::Reference format. The parent process is trying to parse the child's output in a particular format, which it's not getting. As a result, the parent isn't displaying the output.

You can use STDERR as a plaintext back channel. Change the print() to warn(), and set up the POE::Wheel::Run object to use POE::Filter::Line for its StderrFilter: 

  $_[HEAP]{child} = POE::Wheel::Run(
    ... stuff ...,
    StdinFilter => POE::Filter::Reference->new(),
    StdoutFilter => POE::Filter::Reference->new(),
    StderrFilter => POE::Filter::Line->new(),
  );

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Untested, of course. :)

Then handle StderrEvent in the parent. As an added bonus, any errors or warnings in the child will be displayed by the parent. It's great for debugging the child process.

--
Rocco Caputo - http://poe.perl.org/

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Re^2: Data structures not returned via POE::Filter::Reference
by swares (Monk) on Apr 08, 2008 at 16:21 UTC
    With the print statements commented it is still not returning data from certain plugins (LDAP queries and SSH sessions) but I do see all parts of the data were printed into the nohup.out log. Here is an example of the return data (I did a cat on a remote /etc/passwd file) as viewed with vi. The data is returned from a plugin using Net::SSH2 since Net::SSH::Perl seems to be broken now on my dev boxes. 
    ^@^@^@^Fresult147^@^E^G^C^@^@^@^D
^Fswares^@^@^@^Hreply_to
)[ssh2] halt:x:7:0:halt:/sbin:/sbin/halt

^@^@^@^Fstatus
^Dssh2^@^@^@^Dtask
)[ssh2] halt:x:7:0:halt:/sbin:/sbin/halt

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[d/l]

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