getLatencies() returns "-999 [ASE_HWMalfunction] unable to get stream info" on FlexASIO 1.10

[dechamps]

2024-05-27T00:12:02.7335982+01:00 196036 167508 --- ENTERING CONTEXT: getLatencies() on 000002D5255A0260
2024-05-27T00:12:02.7338635+01:00 196036 167508 --- EXITING CONTEXT: getLatencies() (-999 [ASE_HWMalfunction] unable to get stream info)

This is seen in both VB-Audio ASIO Driver Tester and FlexASIOTest. This only happens if getLatencies() is called after createBuffers(), but that is sadly the most common case.

This is also a bug in FlexASIOTest, as evidenced by the following:

Querying latencies...
Driver returned an error: -999 [ASE_HWMalfunction]

Querying latencies...
Driver returned an error: -999 [ASE_HWMalfunction]

…

Testing finished with PASS result

[dechamps]

The regression likely lies somewhere in 59f75ce.

[dechamps]

This is fixed in FlexASIO 1.10a.

[dechamps]

Filed PortAudio/portaudio#915 to make PortAudio more robust against this kind of programming error.