detecting output buffer underflows (low level API)

[dnalor]

I've just ported an audio player from portaudio to miniaudio (using the Go bindings), due to having output buffer underflows with portaudio.
This seems to have been a success, and as far as I can tell, no such underflows occur with miniaudio.
However, I'm wondering if miniaudio has a mechanism to detect and report underflows.
portaudio sets a flag (passed to the callback) if an underflow is detected. It also has a handy function to show CPU consumption for the callback.
So my questions are:

• Is there something like this in miniaudio and I've missed it?
• If not: will an underflow be reported via the logging callback?

[mackron]

Unfortunately there is no xrun detection in miniaudio and I have no plans to support it. Too many backends to deal with and too much complexity for something I don't need personally.

(The ALSA backend detects xruns as part of its normal operation, but it's not exposed to any kind of public API.)