Merge "[NS A43] Separate updating the linger timer and sending LOSING" (7abb6f60) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/ConnectivityService.java

+35 −7

Original line number	Diff line number	Diff line
		@@ -3113,7 +3113,13 @@ public class ConnectivityService extends IConnectivityManager.Stub
		handleUpdateLinkProperties(nai, new LinkProperties(nai.linkProperties));
		}

		private void updateLingerState(NetworkAgentInfo nai, long now) {
		/**
		* Updates the linger state from the network requests inside the NAI.
		* @param nai the agent info to update
		* @param now the timestamp of the event causing this update
		* @return whether the network was lingered as a result of this update
		*/
		private boolean updateLingerState(@NonNull final NetworkAgentInfo nai, final long now) {
		// 1. Update the linger timer. If it's changed, reschedule or cancel the alarm.
		// 2. If the network was lingering and there are now requests, unlinger it.
		// 3. If this network is unneeded (which implies it is not lingering), and there is at least
		@@ -3124,12 +3130,15 @@ public class ConnectivityService extends IConnectivityManager.Stub
		nai.unlinger();
		logNetworkEvent(nai, NetworkEvent.NETWORK_UNLINGER);
		} else if (unneeded(nai, UnneededFor.LINGER) && nai.getLingerExpiry() > 0) {
		int lingerTime = (int) (nai.getLingerExpiry() - now);
		if (DBG) log("Lingering " + nai.name() + " for " + lingerTime + "ms");
		if (DBG) {
		final int lingerTime = (int) (nai.getLingerExpiry() - now);
		log("Lingering " + nai.name() + " for " + lingerTime + "ms");
		}
		nai.linger();
		logNetworkEvent(nai, NetworkEvent.NETWORK_LINGER);
		notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING, lingerTime);
		return true;
		}
		return false;
		}

		private void handleAsyncChannelHalfConnect(Message msg) {
		@@ -3473,7 +3482,10 @@ public class ConnectivityService extends IConnectivityManager.Stub
		}
		// If there are still lingered requests on this network, don't tear it down,
		// but resume lingering instead.
		updateLingerState(nai, SystemClock.elapsedRealtime());
		final long now = SystemClock.elapsedRealtime();
		if (updateLingerState(nai, now)) {
		notifyNetworkLosing(nai, now);
		}
		if (unneeded(nai, UnneededFor.TEARDOWN)) {
		if (DBG) log("no live requests for " + nai.name() + "; disconnecting");
		teardownUnneededNetwork(nai);
		@@ -6629,6 +6641,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
		nri, currentNetwork, null));
		}
		}

		return reassignedRequests;
		}

		@@ -6775,13 +6788,20 @@ public class ConnectivityService extends IConnectivityManager.Stub
		processNewlySatisfiedListenRequests(event.mNetwork);
		}

		final ArrayList<NetworkAgentInfo> lingeredNetworks = new ArrayList<>();
		for (final NetworkAgentInfo nai : nais) {
		// Rematching may have altered the linger state of some networks, so update all linger
		// timers. updateLingerState reads the state from the network agent and does nothing
		// if the state has not changed : the source of truth is controlled with
		// NetworkAgentInfo#lingerRequest and NetworkAgentInfo#unlingerRequest, which have been
		// called while rematching the individual networks above.
		updateLingerState(nai, now);
		if (updateLingerState(nai, now)) {
		lingeredNetworks.add(nai);
		}
		}

		for (final NetworkAgentInfo nai : lingeredNetworks) {
		notifyNetworkLosing(nai, now);
		}

		updateLegacyTypeTrackerAndVpnLockdownForRematch(oldDefaultNetwork, newDefaultNetwork, nais);
		@@ -6797,7 +6817,9 @@ public class ConnectivityService extends IConnectivityManager.Stub
		// and became unneeded due to another network improving its score to the
		// point where this network will no longer be able to satisfy any requests
		// even if it validates.
		updateLingerState(nai, now);
		if (updateLingerState(nai, now)) {
		notifyNetworkLosing(nai, now);
		}
		} else {
		if (DBG) log("Reaping " + nai.name());
		teardownUnneededNetwork(nai);
		@@ -7050,6 +7072,12 @@ public class ConnectivityService extends IConnectivityManager.Stub
		callCallbackForRequest(nri, nai, ConnectivityManager.CALLBACK_AVAILABLE, blocked ? 1 : 0);
		}

		// Notify the requests on this NAI that the network is now lingered.
		private void notifyNetworkLosing(@NonNull final NetworkAgentInfo nai, final long now) {
		final int lingerTime = (int) (nai.getLingerExpiry() - now);
		notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING, lingerTime);
		}

		/**
		* Notify of the blocked state apps with a registered callback matching a given NAI.
		*