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Commit 99068ca7 authored by Kean Mariotti's avatar Kean Mariotti
Browse files

vc tracing: enable/disable window listeners 

Make sure window listeners are disabled
when there are no perfetto tracing sessions.

Bug: 323166383
Flag: android.tracing.Flags.perfettoViewCaptureTracing
Test: presubmit
Change-Id: I330310faf81bbe4bb0076ddca4b9295e2959508b
parent 1d1fba76

viewcapturelib/src/com/android/app/viewcapture/PerfettoViewCapture.kt

+18 −8
Original line number Diff line number Diff line
@@ -38,12 +38,7 @@ internal class PerfettoViewCapture 
internal constructor(private val context: Context, executor: Executor) :

    ViewCapture(RING_BUFFER_SIZE, DEFAULT_INIT_POOL_SIZE, executor) {



    private val mDataSource =

        ViewCaptureDataSource(

            { mActiveSessions.incrementAndGet() },

            {},

            { mActiveSessions.decrementAndGet() }

        )

    private val mDataSource = ViewCaptureDataSource({ onStart() }, {}, { onStop() })



    private val mActiveSessions = AtomicInteger(0)
@@ -60,8 +55,11 @@ internal constructor(private val context: Context, executor: Executor) : 
    }



    init {

        enableOrDisableWindowListeners(false)



        Producer.init(InitArguments.DEFAULTS)

        val params =



        val dataSourceParams =

            DataSourceParams.Builder()

                .setBufferExhaustedPolicy(

                    DataSourceParams.PERFETTO_DS_BUFFER_EXHAUSTED_POLICY_STALL_AND_ABORT
@@ -69,7 +67,19 @@ internal constructor(private val context: Context, executor: Executor) : 
                .setNoFlush(true)

                .setWillNotifyOnStop(false)

                .build()

        mDataSource.register(params)

        mDataSource.register(dataSourceParams)

    }



    fun onStart() {

        if (mActiveSessions.incrementAndGet() == 1) {

            enableOrDisableWindowListeners(true)

        }

    }



    fun onStop() {

        if (mActiveSessions.decrementAndGet() == 0) {

            enableOrDisableWindowListeners(false)

        }

    }



    @WorkerThread