[wix-users] Can two CA's be run at the same time?

[Lewis Henderson]

Thanks for the reply Kashif, but I think you missed the intent of my question.

I realize that there's a Return="async*" to force asynchronous execution, but I was thinking more of the actions marked Execute="firstSequence" or Execute="deferred".  Since they may be "scheduled" in the InstallUISequence and/or InstallExecuteSequence at the same point, are these ever run asynchronously?  (I felt that the Execute="immediate" actions are safely synchronous.)

The point is: unless I specifically use the Return="async*", can I be assured that no more than one of my CA entries is running at any given time?

Thanks again for the help.

				Lewis Henderson
				OpenText, Inc.

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of Kashif Md.
Sent: Friday, August 28, 2015 10:23 AM
To: WiX Toolset Users Mailing List
Subject: Re: [wix-users] Can two CA's be run at the same time?

Yes, try asynchronous CA
On Aug 28, 2015 7:37 PM, "Lewis Henderson" <henderso at opentext.com> wrote:

> Hi Everyone,
>
> I have a implementation question for you.  Can two (or more) Custom 
> Actions be running at the same time?  Are they ever dispatched in a 
> multi-threaded fashion?  There's a reason for this question.  I have a 
> CA written that uses some global storage, and if more than one of its 
> CA entries are run at the same time, that global usage may collide.
>
> So, I am considering expanding this global use.  Is that OK, or should 
> I eliminate it entirely?
>
> Thanks for the help.
>
>                                                                 Lewis 
> Henderson
>                                                                 
> OpenText, Inc.
>
>
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