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WiX-devs Digest, Vol 13, Issue 27

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Today's Topics:

1. =?GB2312?B?y83GscnPw8WjoQ==?= (=?GB2312?B?wfXP/ruq?=)
2. =?GB2312?B?xPq6ww==?= (=?GB2312?B?wO7PyMn6?=)
3. Get More Orders For Anything You Sell in 24 Hours!
()
4. Re: Passing parameters to binary custom action (Adam Langley)
5. scheduling deferred custom actions for SSRS publication
(Adam Langley)
6. Re: scheduling deferred custom actions for SSRS publication
(Bob Arnson)


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Message: 1
Date: Wed, 27 Jun 2007 02:36:36 +0800
From: =?GB2312?B?wfXP/ruq?=
Subject: [WiX-devs] =?GB2312?B?y83GscnPw8WjoQ==?=
To:
Message-ID:
Content-Type: text/plain;charset="GB2312"

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E-mail ??



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Message: 2
Date: Thu, 28 Jun 2007 02:45:48 +0800
From: =?GB2312?B?wO7PyMn6?=
Subject: [WiX-devs] =?GB2312?B?xPq6ww==?=
To:
Message-ID:
Content-Type: text/plain;charset="GB2312"

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??????????... ??????????????????????????????!??????????

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Message: 3
Date: Wed, 27 Jun 2007 15:34:26 -0600
From:
Subject: [WiX-devs] Get More Orders For Anything You Sell in 24 Hours!
To:
Message-ID:
Content-Type: text/plain; charset="us-ascii"

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Message: 4
Date: Thu, 28 Jun 2007 09:52:00 +1200
From: Adam Langley
Subject: Re: [WiX-devs] Passing parameters to binary custom action
To:
Message-ID:
Content-Type: text/plain; charset=us-ascii

Thanks Bob,

Im trying to get the structure of extension in line with whats in the Wix
source (so I can at least contribute it back to the project if I can get
permission from management).
Can you explain the division of the ca\sched and ca\exec c++ directories?
I only have 1 custom action for my extension, but Im wondering if I should
have it split into 2 like the examples, but I'm curious about why there are
2.
I currently have it all working so the SSRS reports get installed, but now I
need to implement state so it installs/uninstalls, and rolls-back in the
correct situations, so
I need to understand the best place to implement this, and how to define it
in the wixlib...

Also, the user select the destination server to install the reports to at
install-time, whats the design process for having the MSI remember this
information so that my custom action removes the reports from the correct
server at uninstallation. Does the MSI runtime just re-instate this property
automatically at uninstall?

Thanks again for all your help Bob,

Regards,

Adam Langley

-----Original Message-----
From: Bob Arnson [mailto:]
Sent: Thursday, 28 June 2007 2:40 a.m.
To: Adam Langley
Cc:
Subject: Re: [WiX-devs] Passing parameters to binary custom action

Adam Langley wrote:
> Ahhh... "-bf" got it!
>

Yep, that's the key to getting an extension that contains everything in
one file -- which is pretty cool if a bit tricky to put together.

--
sig://boB
http://joyofsetup.com/





------------------------------

Message: 5
Date: Thu, 28 Jun 2007 12:53:25 +1200
From: Adam Langley
Subject: [WiX-devs] scheduling deferred custom actions for SSRS
publication
To:
Message-ID:
Content-Type: text/plain; charset="us-ascii"

Ok,



So I think I'm getting the gist of the design now.

Because my custom action is actually modifying the target system (installing
reports), I need to make it a 'deferred' custom action.

That means that it won't necessarily execute within the confines of the MSI,
hence the custom action may not be able to get a reference to the database
to read the information it needs.

So, you guys have written a set of utility classes, so that I divide my
custom action into 2 entrypoints:

1. the 'scheduler' (configured to execute immediately) which reads all
the database information my CA will need, and 'schedules' my CA for deferred
execution, along with a serialized version of its data.

2. The 'executor' which does the actual system modifications



Later down the road, the MSI runtime executes my deferred CA, and I again
use the Wix wcautil functions to deserialize my CA data, and get to work
doing whatever I need to do...

Am I on the right track?



Thanks



Adam Langley



Secon NZ

A1/400 Rosedale Road

Albany 0632



+64 (9)414 4071

www.seconag.com



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Message: 6
Date: Wed, 27 Jun 2007 22:21:58 -0700
From: Bob Arnson
Subject: Re: [WiX-devs] scheduling deferred custom actions for SSRS
publication
To: Adam Langley
Cc:
Message-ID:
Content-Type: text/plain; charset="iso-8859-1"

Adam Langley wrote:
>
> Because my custom action is actually modifying the target system
> (installing reports), I need to make it a 'deferred' custom action.
>

Right.

> That means that it won't necessarily execute within the confines of
> the MSI, hence the custom action may not be able to get a reference to
> the database to read the information it needs.
>

To really explain it I need a whiteboard. Basically, the execute
sequence is broken up into phases. The first is script-generation, when
immediate custom actions run and determine the actions -- and their
data. Then the script is run; that's when you have very limited access
to the database and the installer session it's running in. It's also
when CAs get elevated, so they can modify per-machine data.

There's also rollback, when MSI unwinds the script and deletes files,
puts back overwritten ones, etc. That's why deferred CAs need "matching"
rollback CAs, to undo what they did.

And there's commit, but let's not go there.

> Am I on the right track?
>

Exactly!

--
sig://boB
http://joyofsetup.com/

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End of WiX-devs Digest, Vol 13, Issue 27
****************************************

2007 28 июня