Properly terminate stuck audio thread when closing the program #155
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I observed the audio thread to get stuck waiting for room to write audio, on a Windows 7 machine with an stuck audio daemon (audiodg.exe). It happens intermittently due to either bad apps, a broken audiodg.exe or APO plugin, or bad sound drivers (not sure which).
…undGen Previously the audio thread closed and nulled out CSoundGen::m_hInterruptEvent when exiting, which would cause a data race or use-after-free when trying to set it afterwards from the GUI thread.
This prevents UAF when interrupting the thread during program shutdown.
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I observed the audio thread to get stuck waiting for room to write audio, on a Windows 7 machine with an stuck audio daemon (audiodg.exe). It happens intermittently due to either bad apps, a broken audiodg.exe or APO plugin, or bad sound drivers (not sure which).
To make it work, I had to switch CSoundGen to shared_ptr ownership, which is an improvement to code maintainability in general (avoids the possibility of dangling pointers). This is a prerequisite for future refactorings.
I also fixed the audio thread burning CPU when audio isn't running (due to no audio devices, an audio initialization error, etc.).
This should be correct? I'm not confident lol