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Commit 4e699bd9 authored Jan 03, 2023 by Mikhail Naganov

audio VTS: Refactor support for non-deterministic SM behavior

Use a DAG instead of a list for representing stream state machine
transitions. This allows accomodating multiple possible replies
from the stream state machine, and enables following different,
possibly converging test sequences depending on actual replies.

Update the async output state machine graph including possible
state transitions that are implemented but were missing from the
graph.

Bug: 262402957
Test: atest VtsHalAudioCoreTargetTest
Change-Id: Ie97f3ce9222eec812d4eb4dfbce1f678370bef26

parent 044d5a80

audio/aidl/android/hardware/audio/core/stream-out-async-sm.gv

+2 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@ digraph stream_out_async_state_machine {
		STANDBY -> PAUSED [label="burst"]; // producer -> active
		IDLE -> STANDBY [label="standby"]; // consumer -> passive
		IDLE -> TRANSFERRING [label="burst"]; // producer -> active
		IDLE -> ACTIVE [label="burst"]; // full write
		ACTIVE -> PAUSED [label="pause"]; // consumer -> passive (not consuming)
		ACTIVE -> DRAINING [label="drain"]; // producer -> passive
		ACTIVE -> TRANSFERRING [label="burst"]; // early unblocking
		@@ -45,6 +46,7 @@ digraph stream_out_async_state_machine {
		PAUSED -> IDLE [label="flush"]; // producer -> passive, buffer is cleared
		DRAINING -> IDLE [label="←IStreamCallback.onDrainReady"];
		DRAINING -> TRANSFERRING [label="burst"]; // producer -> active
		DRAINING -> ACTIVE [label="burst"]; // full write
		DRAINING -> DRAIN_PAUSED [label="pause"]; // consumer -> passive (not consuming)
		DRAIN_PAUSED -> DRAINING [label="start"]; // consumer -> active
		DRAIN_PAUSED -> TRANSFER_PAUSED [label="burst"]; // producer -> active

audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp

+275 −164

File changed.

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