Re: Beginners Digest, Vol 89, Issue 2

Hi, thanks so much for your promptly support.
It worked!!!.

I was doing

FileDirectory deleteFileNamed: 'c:\temp\prueba.txt'.  and get an error.

But then I tryied

FileDirectory default deleteFileNamed: 'c:\temp\prueba.txt'.  and it worked.

Sorry I missed include default

Again, thank so much.

This is the first time I wrote.

I am trying to use Seaside to work with Web Services that provide a
Xerox Multifunction Device. I will tell you how everything is going
on, If there is anay doubt I will tell you.

Best Regards

Marcos.

2013/9/13, [hidden email]
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Today's Topics:

   1. Re: Beginners Digest, Vol 89, Issue 1 (Marcos Cevallos)
   2. deleting a file from Windows system directory (Ben Coman)


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

Message: 1
Date: Thu, 12 Sep 2013 19:35:17 -0500
From: Marcos Cevallos [hidden email]
Subject: [Newbies] Re: Beginners Digest, Vol 89, Issue 1
To: [hidden email]
Message-ID:
	[hidden email]
Content-Type: text/plain; charset=UTF-8

Hi

I´m newbie in squeak

I want to know how to delete a file in a windows system directory in
pharo 1.3 seaside 3.0.7

I really appreciate it

2013/9/10, [hidden email]
[hidden email]:
    

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Today's Topics:

   1. Serial port write freezes the VM (mactro)
   2. Re: Serial port write freezes the VM (Levente Uzonyi)
   3. Re: Serial port write freezes the VM (Maciej Troszy?ski)


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

Message: 1
Date: Mon, 9 Sep 2013 05:35:18 -0700 (PDT)
From: mactro [hidden email]
Subject: [Newbies] Serial port write freezes the VM
To: [hidden email]
Message-ID: [hidden email]
Content-Type: text/plain; charset=us-ascii

Hi,

I'm developing a mod for Scratch that will allow controlling an
educational
robot via Bluetooth. I'm using SerialPort2 class that is included in
Scratch
plugin and allows opening ports by name. Everything works fine BUT, when
I
send commands in a loop, and the connection is lost (i.e. the robot was
powered off), the VM freezes. I tried forking the port nextPutAll like
that:

timer := Delay forMilliseconds: 1000.
port := SerialPort2  new.
port openPortNamed:'COM14' baud:57600.
process := [port nextPutAll:'test'. Transcript show:'port'.] forkAt: 1.
[timer wait. Transcript show:'delay'. process terminate.] forkAt: 7.

but with no result. Is there any way to write to a serial port with
timeout?

mactro



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Message: 2
Date: Tue, 10 Sep 2013 04:45:35 +0200 (CEST)
From: Levente Uzonyi [hidden email]
Subject: Re: [Newbies] Serial port write freezes the VM
To: "A friendly place to get answers to even the most basic questions
	about	Squeak." [hidden email]
Message-ID:
	[hidden email]
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

On Mon, 9 Sep 2013, mactro wrote:

      

Hi,

I'm developing a mod for Scratch that will allow controlling an
educational
robot via Bluetooth. I'm using SerialPort2 class that is included in
Scratch
plugin and allows opening ports by name. Everything works fine BUT, when
I
send commands in a loop, and the connection is lost (i.e. the robot was
powered off), the VM freezes. I tried forking the port nextPutAll like
that:

timer := Delay forMilliseconds: 1000.
port := SerialPort2  new.
port openPortNamed:'COM14' baud:57600.
process := [port nextPutAll:'test'. Transcript show:'port'.] forkAt: 1.
[timer wait. Transcript show:'delay'. process terminate.] forkAt: 7.

but with no result. Is there any way to write to a serial port with
timeout?
        

I can't help you with the SerialPort issue, but the process priorities 1
and 7 are definitely bad. Since the idle process uses priority 10, your
processes will never run. Try using something between 11 and 39, or use
the named priorities:
Processor userBackgroundPriority
Processor systemBackgroundPriority


Levente

      

mactro



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

Message: 3
Date: Tue, 10 Sep 2013 08:39:10 +0200
From: Maciej Troszy?ski [hidden email]
Subject: Re: [Newbies] Serial port write freezes the VM
To: "A friendly place to get answers to even the most basic questions
	about	Squeak." [hidden email]
Message-ID:
	[hidden email]
Content-Type: text/plain; charset=ISO-8859-2

Well, at first I tried using larger numbers, but it seems, that my VM
has maximum priority equal to 8. Processor userBackgroundPriority
prints 3 and Processor userInterruptPriority prints 5.


pozdrawiam
Maciej Troszyński


2013/9/10 Levente Uzonyi [hidden email]:
      

On Mon, 9 Sep 2013, mactro wrote:

        

Hi,

I'm developing a mod for Scratch that will allow controlling an
educational
robot via Bluetooth. I'm using SerialPort2 class that is included in
Scratch
plugin and allows opening ports by name. Everything works fine BUT,
when
I
send commands in a loop, and the connection is lost (i.e. the robot was
powered off), the VM freezes. I tried forking the port nextPutAll like
that:

timer := Delay forMilliseconds: 1000.
port := SerialPort2  new.
port openPortNamed:'COM14' baud:57600.
process := [port nextPutAll:'test'. Transcript show:'port'.] forkAt: 1.
[timer wait. Transcript show:'delay'. process terminate.] forkAt: 7.

but with no result. Is there any way to write to a serial port with
timeout?
          

I can't help you with the SerialPort issue, but the process priorities 1
and
7 are definitely bad. Since the idle process uses priority 10, your
processes will never run. Try using something between 11 and 39, or use
the
named priorities:
Processor userBackgroundPriority
Processor systemBackgroundPriority


Levente


        

mactro



--
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End of Beginners Digest, Vol 89, Issue 1
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------------------------------

Message: 2
Date: Fri, 13 Sep 2013 11:56:51 +0800
From: Ben Coman [hidden email]
Subject: [Newbies] deleting a file from Windows system directory
To: "A friendly place to get answers to even the most basic questions
	about	Squeak." [hidden email]
Message-ID: [hidden email]
Content-Type: text/plain; charset=UTF-8; format=flowed

Marcos Cevallos wrote:
    

Hi

I´m newbie in squeak

I want to know how to delete a file in a windows system directory in
pharo 1.3 seaside 3.0.7

I really appreciate it


      

hi Marcos,

Welcome.  I hope you are having fun with it.  First, I've updated the
subject to be more specific.  That makes it easier for us to track.
Hope that is okay.
A few queries then to narrow down the scope of your query..

You say 'windows' but use all lower case.
Do you mean 'Windows' as in Microsoft Windows?
Also which version?

By 'system directory', do you mean 'C:\Windows\System' or
'C:\Windows\System32' or some other protected directory?

You imply that you already know how to delete a file outside the system
directory. What is the code you used that was successful for that, which
fails with a system directory?

What things have you tried already?
* Can you delete the required file outside of Seaside, just Pharo 1.3 ?
* Can you delete the required file outside of Pharo 1.3, from Windows
Explorer, and from the command-line ?

btw, You may find the following of interest...
http://www.catb.org/esr/faqs/smart-questions.html

I'm not an expert, but with answers to those questions I hope I'll be
able to help you.

cheers -ben



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