[MacRuby-devel] [MacRuby] #477: Need GCD wrapper for dispatch_once

[MacRuby]

#477: Need GCD wrapper for dispatch_once
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 Reporter:  ernest.prabhakar@…          |       Owner:  lsansonetti@…        
     Type:  defect                      |      Status:  new                  
 Priority:  minor                       |   Milestone:  MacRuby 0.5          
Component:  MacRuby                     |    Keywords:                       
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 We need an API for dispatch_once:

 http://developer.apple.com/mac/library/documentation/Darwin/Reference/ManPages/man3/dispatch_once.3.html

 http://developer.apple.com/mac/library/documentation/Performance/Reference/GCD_libdispatch_Ref/Reference/reference.html#//apple_ref/c/func/dispatch_once

 http://www.opensource.apple.com/source/libdispatch/libdispatch-84.5.1/src/once.h
 http://www.opensource.apple.com/source/libdispatch/libdispatch-84.5.1/src/once.c

 Ideally something as simple as:

 Dispatch::Once.new  { run_this_once }

 The tricky part is that the "Once" would have to allocate (the equivalent
 of) a global or static dispatch_once_t (i.e., a long). Could that be done
 with class variables?

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Ticket URL: <http://www.macruby.org/trac/ticket/477>
MacRuby <http://macruby.org/>