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This avoids situations like: - PulseAudio holds its own lock in the hotplug thread. - The hotplug thread notices a device went away. - The hotplug thread calls SDL_AudioDeviceDisconnected(). - SDL_AudioDeviceDisconnected() tries to grab the device lock. - The device thread is holding the device lock... - ...but is currently waiting on PulseAudio's lock to release. In short: deadlock. It's better to queue this work to run on the main thread, where we can guarantee a start with _none_ of the audio subsystem locks held.
Simple DirectMedia Layer (SDL for short) is a cross-platform library designed to make it easy to write multi-media software, such as games and emulators.
You can find the latest release and additional information at: https://www.libsdl.org/
Installation instructions and a quick introduction is available in INSTALL.md
This library is distributed under the terms of the zlib license, available in LICENSE.txt.
Enjoy!
Sam Lantinga (slouken@libsdl.org)