Murray, Mike wrote:
> Can anyone tell me why the exec task, whether or not spawned, hangs in
> parallel calls? It works fine if I pass -DthreadCount=1. It appears
> the higher the threadCount used, the quicker it will hang, since
> -DthreadCount=2 works for a while, but threadCount=5 hangs immediately.
> This apparently happens when two exec tasks are called simultaneously.
> Using a forked java task in similar fashion, hangs the same way. The
> parallel calls of BuildModule work fine when the macrodef uses the ant
> task.

I've not seen this. I wonder if its some kind of race condition/deadlock
in exec or parallel


>
> Thanks, Mike
>
>   <parallel threadCount='${threadCount}'>
>     <BuildModule name='wnc/Cadx' modroot='CadxHtmlUi/Cadx'
> assembly='wnc' />
>     <BuildModule name='wnc/Esi' modroot='wcEsi/Esi' assembly='wnc' />
>     <BuildModule name='wnc/Explorer'
> modroot='Windchill/DevModules/Explorer' assembly='wnc' />
>   </parallel>
>
>   <macrodef name="BuildModule">
>     <attribute name="assembly"         default=""/>
>     <attribute name="name"           default="@(protected)}"/>
>     <attribute name="modroot"/>
>     <sequential>  
>       <exec executable="ant" spawn="true" vmlauncher="false">
>         <arg line="-f ${module_script} ${ant.arguments}
> -Dmodroot=${viewroot}/@(protected)>
> } -Dcontext=@(protected)}"/> >
>       </exec>
>
>
>


--
Steve Loughran            http://www.1060.org/blogxter/publish/5
Author: Ant in Action       http://antbook.org/

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