From a417ff820140d25a237dd4aa965cc88150f63be1 Mon Sep 17 00:00:00 2001
From: Dianne Hackborn <hackbod@google.com>
Date: Tue, 8 Dec 2009 19:45:14 -0800
Subject: [PATCH] Implement API to have new broadcasts replace existing
 broadcasts.

Use this in various places where it should serve no purpose to deliver
both broadcasts.  This is intended to reduce somewhat the flurry of
broadcasts that we churn through during boot.
---
 .../android/server/ConnectivityService.java   | 25 ++++++++-----------
 1 file changed, 11 insertions(+), 14 deletions(-)

diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 27b631e492..77884a4444 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -98,7 +98,7 @@ public class ConnectivityService extends IConnectivityManager.Stub {
     private List mFeatureUsers;
 
     private boolean mSystemReady;
-    private ArrayList<Intent> mDeferredBroadcasts;
+    private Intent mInitialBroadcast;
 
     private static class NetworkAttributes {
         /**
@@ -786,6 +786,7 @@ public class ConnectivityService extends IConnectivityManager.Stub {
         }
 
         Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
+        intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
         intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info);
         if (info.isFailover()) {
             intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true);
@@ -885,6 +886,7 @@ public class ConnectivityService extends IConnectivityManager.Stub {
 
     private void sendConnectedBroadcast(NetworkInfo info) {
         Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
+        intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
         intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info);
         if (info.isFailover()) {
             intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true);
@@ -922,6 +924,7 @@ public class ConnectivityService extends IConnectivityManager.Stub {
         }
 
         Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
+        intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
         intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info);
         if (getActiveNetworkInfo() == null) {
             intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true);
@@ -941,26 +944,20 @@ public class ConnectivityService extends IConnectivityManager.Stub {
 
     private void sendStickyBroadcast(Intent intent) {
         synchronized(this) {
-            if (mSystemReady) {
-                mContext.sendStickyBroadcast(intent);
-            } else {
-                if (mDeferredBroadcasts == null) {
-                    mDeferredBroadcasts = new ArrayList<Intent>();
-                }
-                mDeferredBroadcasts.add(intent);
+            if (!mSystemReady) {
+                mInitialBroadcast = new Intent(intent);
             }
+            intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
+            mContext.sendStickyBroadcast(intent);
         }
     }
 
     void systemReady() {
         synchronized(this) {
             mSystemReady = true;
-            if (mDeferredBroadcasts != null) {
-                int count = mDeferredBroadcasts.size();
-                for (int i = 0; i < count; i++) {
-                    mContext.sendStickyBroadcast(mDeferredBroadcasts.get(i));
-                }
-                mDeferredBroadcasts = null;
+            if (mInitialBroadcast != null) {
+                mContext.sendStickyBroadcast(mInitialBroadcast);
+                mInitialBroadcast = null;
             }
         }
     }