[Bugs] #1160 UNSP: no way to wait for index to finish updating/(re)building

[SugarLabs Bugs]

#1160: no way to wait for index to finish updating/(re)building
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    Reporter:  sascha_silbe               |          Owner:  tomeu            
        Type:  defect                     |         Status:  new              
    Priority:  Unspecified by Maintainer  |      Milestone:  0.86             
   Component:  sugar-datastore            |        Version:  Git as of bugdate
    Severity:  Unspecified                |     Resolution:                   
    Keywords:  r?                         |   Distribution:  Unspecified      
Status_field:  New                        |  
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Changes (by sascha_silbe):

  * keywords:  => r?


Comment:

 Implemented the check_ready() method and Ready() signal from my datastore
 redesign proposal. Also added a wait_ready() method that blocks the caller
 until the index (re)build has finished. pep8.py/pylint clean.

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Ticket URL: <http://dev.sugarlabs.org/ticket/1160#comment:1>
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