Merge "[NS A43] Separate updating the linger timer and sending LOSING" am: 7abb6f602d
Change-Id: I4b8e7eec2df77d04700582542d6f3f2fb455c2af
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 097f646..b3b1722 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -3113,7 +3113,13 @@
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 @@
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 @@
}
// 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 @@
nri, currentNetwork, null));
}
}
+
return reassignedRequests;
}
@@ -6775,13 +6788,20 @@
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 @@
// 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 @@
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.
*