Cache call events to ensure that cap exchange events are not missed (3e883652) · Commits · e / os / android_packages_services_Telecomm

flags/telecom_call_flags.aconfig

+11 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,17 @@ flag {
		bug: "321369729"
		}

		# OWNER=breadley TARGET=24Q4
		flag {
		name: "cache_call_events"
		namespace: "telecom"
		description: "Cache call events to wait for the ServiceWrapper to be set"
		bug: "364311190"
		metadata {
		purpose: PURPOSE_BUGFIX
		}
		}

		# OWNER = breadley TARGET=24Q3
		flag {
		name: "cancel_removal_on_emergency_redial"

src/com/android/server/telecom/CachedAvailableEndpointsChange.java

+5 −0

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		@@ -33,6 +33,11 @@ public class CachedAvailableEndpointsChange implements CachedCallback {
		mAvailableEndpoints = endpoints;
		}

		@Override
		public int getCacheType() {
		return TYPE_STATE;
		}

		@Override
		public void executeCallback(CallSourceService service, Call call) {
		service.onAvailableCallEndpointsChanged(call, mAvailableEndpoints);

src/com/android/server/telecom/CachedCallEventQueue.java

0 → 100644

+48 −0

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		/*
		* Copyright (C) 2024 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.server.telecom;

		import android.os.Bundle;
		import android.telecom.Log;

		public class CachedCallEventQueue implements CachedCallback {
		public static final String ID = CachedCallEventQueue.class.getSimpleName();

		private final String mEvent;
		private final Bundle mExtras;

		public CachedCallEventQueue(String event, Bundle extras) {
		mEvent = event;
		mExtras = extras;
		}

		@Override
		public int getCacheType() {
		return TYPE_QUEUE;
		}

		@Override
		public void executeCallback(CallSourceService service, Call call) {
		Log.addEvent(call, LogUtils.Events.CALL_EVENT, mEvent);
		service.sendCallEvent(call, mEvent, mExtras);
		}

		@Override
		public String getCallbackId() {
		return ID;
		}
		}

src/com/android/server/telecom/CachedCallback.java

+33 −4

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		@@ -22,6 +22,27 @@ package com.android.server.telecom;
		* The callback will be executed once the service is set.
		*/
		public interface CachedCallback {

		/**
		* This callback is caching a state, meaning any new CachedCallbacks with the same
		* {@link #getCallbackId()} will REPLACE any existing CachedCallback.
		*/
		int TYPE_STATE = 0;
		/**
		* This callback is caching a Queue, meaning that any new CachedCallbacks with the same
		* {@link #getCallbackId()} will enqueue as a FIFO queue and each instance of this
		* CachedCallback will run {@link #executeCallback(CallSourceService, Call)}.
		*/
		int TYPE_QUEUE = 1;

		/**
		* This method allows the callback to determine whether it is caching a {@link #TYPE_STATE} or
		* a {@link #TYPE_QUEUE}.
		*
		* @return Either {@link #TYPE_STATE} or {@link #TYPE_QUEUE} based on the callback type.
		*/
		int getCacheType();

		/**
		* This method executes the callback that was cached because the service was not available
		* at the time the callback was ready.
		@@ -33,11 +54,19 @@ public interface CachedCallback {
		void executeCallback(CallSourceService service, Call call);

		/**
		* This method is helpful for caching the callbacks. If the callback is called multiple times
		* while the service is not set, ONLY the last callback should be sent to the client since the
		* last callback is the most relevant
		* The ID that this CachedCallback should use to identify itself as a distinct operation.
		* <p>
		* If {@link #TYPE_STATE} is set for {@link #getCacheType()}, and a CachedCallback with the
		* same ID is called multiple times while the service is not set, ONLY the last callback will be
		* sent to the client since the last callback is the most relevant.
		* <p>
		* If {@link #TYPE_QUEUE} is set for {@link #getCacheType()} and the CachedCallback with the
		* same ID is called multiple times while the service is not set, each CachedCallback will be
		* enqueued in FIFO order. Once the service is set, {@link #executeCallback} will be called
		* for each CachedCallback with the same ID.
		*
		* @return the callback id that is used in a map to only store the last callback value
		* @return A unique callback id that will be used differentiate this CachedCallback type with
		* other CachedCallback types.
		*/
		String getCallbackId();
		}

src/com/android/server/telecom/CachedCurrentEndpointChange.java

+5 −0

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		@@ -32,6 +32,11 @@ public class CachedCurrentEndpointChange implements CachedCallback {
		mCurrentCallEndpoint = callEndpoint;
		}

		@Override
		public int getCacheType() {
		return TYPE_STATE;
		}

		@Override
		public void executeCallback(CallSourceService service, Call call) {
		service.onCallEndpointChanged(call, mCurrentCallEndpoint);