Re: [MacRuby-devel] [MacRuby] #394: Unrecognized runtime type _NSRange=II

2009-10-20 Thread MacRuby 
#394: Unrecognized runtime type _NSRange=II
---+
 Reporter:  cwdi...@…  |Owner:  lsansone...@…
 Type:  defect |   Status:  closed   
 Priority:  blocker|Milestone:  MacRuby 0.5  
Component:  MacRuby|   Resolution:  fixed
 Keywords: |  
---+
Changes (by lsansone...@…):

  * status:  new => closed
  * resolution:  => fixed
  * milestone:  => MacRuby 0.5


Comment:

 Committed temporary workaround in r2865. Thanks for the report.

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[MacRuby-devel] [MacRuby] #395: String#% does not work with %p

2009-10-20 Thread MacRuby 
#395: String#% does not work with %p
+---
 Reporter:  jazz...@…   |   Owner:  lsansone...@…
 Type:  defect  |  Status:  new  
 Priority:  major   |   Milestone:  MacRuby 0.5  
Component:  MacRuby |Keywords:   
+---
 {{{
 macruby -e 'p "%p" % "foo"'
 }}}

 results in

 {{{
 core:in `%:': expected instance of Pointer, got `"foo"' (NSMutableString)
 (TypeError)
 from -e:1:in `'
 }}}

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Re: [MacRuby-devel] MacRuby 0.5 beta 1

2009-10-20 Thread Eloy Duran 
Laurent,

as they say in french; congratulations on le grande effort! \m/

Eloy

On Thursday, October 8, 2009, Laurent Sansonetti  wrote:
> Hi,
>
> The first beta release of MacRuby 0.5 is out! I prepared some notes here:
>
> http://www.macruby.org/blog/2009/10/07/macruby05b1.html
>
> The goal is to go through a few beta releases before releasing the final 0.5.
>
> Please give it a try and report us bugs & feedback :)
>
> Laurent
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[MacRuby-devel] tentative first steps with GCD in macruby

2009-10-20 Thread John Shea 

Dear All,

(sorry for the long post)

I have been experimenting a bit with GCD in MacRuby 0.5 beta.

I have managed to get some code working as I would expect it to work,  
and I am wondering if a few of you could provide a sanity check that  
everything i am doing is above board and not the result of unspecified  
behaviour.


My main concern is that when running a set of tasks and collecting the  
results that the collecting itself is not thread safe (in this case  
the << operator). And if it is not thread safe - then what is the best  
way to collect results from dispatched tasks.


But so far it seems to work magically well.

Before I put the code down - here are some initial discoveries  (which  
may have been obvious to everyone else).


1. When running tests you need wait until the threads are finished -  
otherwise the main loop will finish before the output comes back from  
other threads.
I did that with a sleep, but also experimented with looping until an  
array is filled.


2. Scope: Given one of the global system queues :   
gcdq = Dispatch::Queue.concurrent(:default)

and looping over a number of dispatches:
5.times do |index|
gcdq.dispatch {puts index}
end
the task dispatched will hold the last value of index - it will not  
capture the changing value of index - I assume that the task has a  
pointer directly to the index variable.
(an article by Bill Bumgarner http://www.friday.com/bbum/2009/08/29/blocks-tips-tricks/ 
 pointed out something similar in objC - but had a different way of  
solving this)


So to capture that changing index,  I created a Proc then turned it  
back to a block, eg:

5.times do |index|
task = Proc.new {puts index}
gcdq.dispatch &task
end

3. You will notice that in the code below in check = a.run-disp2 that  
the array is returned - I assume empty - and is gradually filled by  
the tasks.


class A
  def run_disp(an_array)
gcdq = Dispatch::Queue.concurrent(:default)
["f","g","h","i", "j"].each_with_index do |val, index|
   task = Proc.new {an_array  << do_something(val, index)}
   gcdq.dispatch &task
  puts "Loaded #{index}"
end
  end

  def run_disp2
an_array = []
gcdq = Dispatch::Queue.concurrent(:default)
["f","g","h","i", "j"].each_with_index do |val, index|
   task = Proc.new {an_array  << do_something(val, index)}
   gcdq.dispatch &task
  puts "Loaded #{index}"
end
an_array
  end

  def do_something(val, index)
#staggered sleeps so as to prove that various tasks finish first
result = val * (index + 1)
case index
when 0, 1
  sleep 2
when 2
  sleep 1
else
  sleep 0
end
puts "yeah baby! #{index}"
result
  end
end

a = A.new
#pass array to be filled
an_array = []
a.run_disp(an_array)
sleep 10
puts "passed array: #{an_array.join(", ")}"

check = a.run_disp2
sleep 10
puts "returned array: #{check.join(", ")}"

#results:
# Loaded 0
# Loaded 1
# Loaded 2
# Loaded 3
# Loaded 4
# yeah baby! 4yeah baby! 3
#
# yeah baby! 2
# yeah baby! 1
# yeah baby! 0
# passed array: , j, hhh, gg, f
# Loaded 0
# Loaded 1
# Loaded 2
# Loaded 3
# Loaded 4
# yeah baby! 3
# yeah baby! 4
# yeah baby! 2
# yeah baby! 0
# yeah baby! 1
# returned array: , j, hhh, f, gg

#assume puts is not transactional.


thanks in advance for any comments / corrections,
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Re: [MacRuby-devel] [MacRuby] #394: Unrecognized runtime type _NSRange=II

2009-10-20 Thread MacRuby 
#394: Unrecognized runtime type _NSRange=II
---+
 Reporter:  cwdi...@…  |Owner:  lsansone...@…
 Type:  defect |   Status:  closed   
 Priority:  blocker|Milestone:  MacRuby 0.5  
Component:  MacRuby|   Resolution:  fixed
 Keywords: |  
---+

Comment(by cwdi...@…):

 There is a new problem with this. I'm attaching a new file. The range
 passed in is bad. Build, run, type some characters, press esc. The numbers
 reported for length and location are wrong.

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Re: [MacRuby-devel] [MacRuby] #394: Unrecognized runtime type _NSRange=II

2009-10-20 Thread MacRuby 
#394: Unrecognized runtime type _NSRange=II
---+
 Reporter:  cwdi...@…  |Owner:  lsansone...@…
 Type:  defect |   Status:  reopened 
 Priority:  blocker|Milestone:  MacRuby 0.5  
Component:  MacRuby|   Resolution:   
 Keywords: |  
---+
Changes (by lsansone...@…):

  * status:  closed => reopened
  * resolution:  fixed =>


Comment:

 You're right, reopening.

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