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[Launchpad Bug Tracker <1362367@xxxxxxxxxxxxxxxxxx>]

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if (safe_system_call(started_message) != 0)

This fails non-deterministically in the Registry test, even though it
shouldn't.

I suspect the lack of thread safety of system() is to blame, and the
safe_system_call() method with its lock doesn't do the job we were
hoping it would.

I don't think we can rely on system() to do anything for us. (I've had
problems in the past where it would hang occasionally, for example.)

Forking a shell is also a supremely expensive way to send a single dbus
message. It probably would be better for us to cobble our own dbus
message together. But do we have a thread-safe dbus API?

** Affects: unity-scopes-api (Ubuntu)
     Importance: High
         Status: New

-- 
system() fails in RegistryObject
https://bugs.launchpad.net/bugs/1362367
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