commit a417ff820140d25a237dd4aa965cc88150f63be1
author Dianne Hackborn <hackbod@google.com> Tue Dec 08 19:45:14 2009 -0800
committer Dianne Hackborn <hackbod@google.com> Mon Dec 14 15:03:35 2009 -0800
tree 48a11fa94bde5fafb216ed492b7e48e23b50ed34
parent f59a2ae61e985a54f897c5f95977dc0d08e8dbe6

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.

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

diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 27b631e..77884a4 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -98,7 +98,7 @@
     private List mFeatureUsers;
 
     private boolean mSystemReady;
-    private ArrayList<Intent> mDeferredBroadcasts;
+    private Intent mInitialBroadcast;
 
     private static class NetworkAttributes {
         /**
@@ -786,6 +786,7 @@
         }
 
         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 @@
 
     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 @@
         }
 
         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 @@
 
     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;
             }
         }
     }