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Bug1257: Crash when enabling VST effect Amplio2...

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... Suspected a threading bug in the library itself, which Audacity can
compensate with a short delay:  see code comments.

The other part of the complaint in 1257 -- that the play button would crash --
was a separate problem, fixed previously for bug 1242.
This commit is contained in:
Paul Licameli 2016-04-05 15:09:07 -04:00
parent cfcb876bc1
commit f0cbda835e
1 changed files with 5 additions and 0 deletions
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5
src/effects/ladspa/LadspaEffect.cpp
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@ -239,6 +239,11 @@ bool LadspaEffectsModule::RegisterPlugin(PluginManagerInterface & pm, const wxSt
}
if (lib.IsLoaded()) {
// PRL: I suspect Bug1257 -- Crash when enabling Amplio2 -- is the fault of a timing-
// dependent multi-threading bug in the Amplio2 library itself, in case the unload of the .dll
// comes too soon after the load. I saw the bug in Release builds but not Debug.
// A sleep of even 1 ms was enough to fix the problem for me, but let's be even more generous.
::wxMilliSleep(10);
lib.Unload();
}