[mdydek]

Closes #1339

⚠️ Breaking changes ⚠️

Introduced changes

• fixed the bug that could break the invariant of thread pool wait function some tasks could accidentally change its internal state
• even with the fix mentioned above, the thread pool waiting design was wrong, because if the thread that did a convolution was suspended, we were also waiting for this result, thus here the redisign is presented. We can utilize the fact that if we remember data from the past on the current pass we can calculate only some small parts on the audio thread and then delegate the rest to the underlying thread, which gives them N (8 in this case) x RQ time of time to finish the calculations. By using this approach the underlying threads could be suspended, but still make the deadline which audio thread can utilize. If the result is not ready, unfortunately heavy convolution is done on audio thread.
• while testing there were some false positives in tsan builds, because the audioapi library which was linked against those builds, was not build with the according flag, also fixed that

Checklist

• Linked relevant issue
• Updated relevant documentation
• Added/Conducted relevant tests
• Performed self-review of the code
• Updated Web Audio API coverage
• Added support for web
• Updated old arch android spec file

[github-actions]

WPT non-regression comparison

PASS — no regressions · 1 improved section(s) · overall 3427 → 3428 (+1)

Spec section	Base pass	Head pass	Delta
ConvolverNode	178	179	+1

Unchanged sections (27)

Spec section	Base pass	Head pass	Delta
Processing model	1	1	0
Other	56	56	0
AnalyserNode	138	138	0
AudioBuffer	140	140	0
AudioBufferSourceNode	220	220	0
AudioContext	58	58	0
AudioNode	261	261	0
AudioParam	680	680	0
BiquadFilterNode	275	275	0
ChannelMergerNode	30	30	0
ChannelSplitterNode	7	7	0
ConstantSourceNode	64	64	0
DelayNode	127	127	0
DestinationNode	0	0	0
DynamicsCompressorNode	4	4	0
GainNode	15	15	0
IIRFilterNode	87	87	0
MediaElementAudioSourceNode	0	0	0
MediaStreamAudioDestinationNode	1	1	0
MediaStreamAudioSourceNode	0	0	0
OfflineAudioContext	35	35	0
OscillatorNode	104	104	0
PannerNode	727	727	0
PeriodicWave	33	33	0
ScriptProcessorNode	0	0	0
StereoPannerNode	104	104	0
WaveShaperNode	82	82	0

_{Baseline: e39c1826e187a100d8d7ee6855e2a92ab32e8c32 · Candidate: 53768bca6fc8f3d234d218f52274467c5f8dab58}

_{Workflow run · this comment is updated on every push.}