Fix ANRs from Email.setServicesEnabled()

* Create sync & async versions
* Rename all callsites so sync is very apparent
* Fix callsites appropriately
* Clean up interaction between reconciler and setServicesEnabled

Bug: 3133770
Bug: 3134677
Change-Id: Iefbc7814d9aa390baea6345e450e2a4768bf0a9a

src/com/android/email/AccountBackupRestore.java

@@ -72,7 +72,7 @@ public class AccountBackupRestore {
             // update security profile
             SecurityPolicy.getInstance(context).updatePolicies(-1);
             // enable/disable other email services as necessary
-            Email.setServicesEnabled(context);
+            Email.setServicesEnabledSync(context);
             ExchangeUtils.startExchangeService(context);
         }
         sBackupsChecked = true;

src/com/android/email/Controller.java

@@ -963,7 +963,7 @@ public class Controller {
             // Release or relax device administration, if relevant
             SecurityPolicy.getInstance(context).reducePolicies();
 
-            Email.setServicesEnabled(context);
+            Email.setServicesEnabledSync(context);
         } catch (Exception e) {
             Log.w(Email.LOG_TAG, "Exception while deleting account", e);
         } finally {

src/com/android/email/Email.java

@@ -175,12 +175,32 @@ public class Email extends Application {
         return sTempDirectory;
     }
 
+    /**
+     * Asynchronous version of {@link #setServicesEnabledSync(Context)}.  Use when calling from
+     * UI thread (or lifecycle entry points.)
+     *
+     * @param context
+     */
+    public static void setServicesEnabledAsync(final Context context) {
+        Utility.runAsync(new Runnable() {
+            @Override
+            public void run() {
+                setServicesEnabledSync(context);
+            }
+        });
+    }
+
     /**
      * Called throughout the application when the number of accounts has changed. This method
      * enables or disables the Compose activity, the boot receiver and the service based on
-     * whether any accounts are configured.   Returns true if there are any accounts configured.
+     * whether any accounts are configured.
+     *
+     * Blocking call - do not call from UI/lifecycle threads.
+     *
+     * @param context
+     * @return true if there are any accounts configured.
      */
-    public static boolean setServicesEnabled(Context context) {
+    public static boolean setServicesEnabledSync(Context context) {
         Cursor c = null;
         try {
             c = context.getContentResolver().query(
@@ -197,7 +217,7 @@ public class Email extends Application {
         }
     }
 
-    public static void setServicesEnabled(Context context, boolean enabled) {
+    private static void setServicesEnabled(Context context, boolean enabled) {
         PackageManager pm = context.getPackageManager();
         if (!enabled && pm.getComponentEnabledSetting(
                 new ComponentName(context, MailService.class)) ==

src/com/android/email/activity/UpgradeAccounts.java

@@ -410,7 +410,7 @@ public class UpgradeAccounts extends ListActivity implements OnClickListener {
                 }
 
                 // Step 4:  Enable app-wide features such as composer, and start mail service(s)
-                Email.setServicesEnabled(mContext);
+                Email.setServicesEnabledSync(mContext);
             }
 
             return null;

src/com/android/email/activity/setup/AccountSettingsFragment.java

@@ -620,12 +620,7 @@ public class AccountSettingsFragment extends PreferenceFragment {
         mAccount.update(mContext, cv);
 
         // Run the remaining changes off-thread
-        Utility.runAsync(new Runnable() {
-            @Override
-            public void run() {
-                Email.setServicesEnabled(mContext);
-            }
-        });
+        Email.setServicesEnabledAsync(mContext);
     }
 
     /**

src/com/android/email/activity/setup/AccountSetupOptions.java

@@ -223,12 +223,15 @@ public class AccountSetupOptions extends AccountSetupActivity implements OnClick
         saveAccountAndFinish();
     }
 
+    /**
+     * STOPSHIP most of this work needs to be async
+     */
     private void saveAccountAndFinish() {
         // Clear the incomplete/security hold flag now
         Account account = SetupData.getAccount();
         account.mFlags &= ~(Account.FLAGS_INCOMPLETE | Account.FLAGS_SECURITY_HOLD);
         AccountSettingsUtils.commitSettings(this, account);
-        Email.setServicesEnabled(this);
+        Email.setServicesEnabledSync(this);
         AccountSetupNames.actionSetNames(this);
         // Start up ExchangeService (if it isn't already running)
         ExchangeUtils.startExchangeService(this);

src/com/android/email/service/EmailBroadcastProcessorService.java

@@ -87,7 +87,7 @@ public class EmailBroadcastProcessorService extends IntentService {
     }
 
     private void enableComponentsIfNecessary() {
-        if (Email.setServicesEnabled(this)) {
+        if (Email.setServicesEnabledSync(this)) {
             // At least one account exists.
             // TODO probably we should check if it's a POP/IMAP account.
             MailService.actionReschedule(this);

src/com/android/exchange/ExchangeService.java

@@ -1046,36 +1046,34 @@ public class ExchangeService extends Service implements Runnable {
      */
     public class EasAccountsUpdatedListener implements OnAccountsUpdateListener {
         public void onAccountsUpdated(android.accounts.Account[] accounts) {
-            ExchangeService exchangeService = INSTANCE;
+            final ExchangeService exchangeService = INSTANCE;
             if (exchangeService != null) {
-                exchangeService.runAccountReconciler();
+                Utility.runAsync(new Runnable() {
+                    @Override
+                    public void run() {
+                        exchangeService.runAccountReconcilerSync(exchangeService);
+                    }
+                });
             }
         }
     }
 
     /**
-     * Non-blocking call to run the account reconciler.
-     * Launches a worker thread, so it may be called from UI thread.
+     * Blocking call to the account reconciler
      */
-    private void runAccountReconciler() {
-        final ExchangeService exchangeService = this;
-        new Thread() {
-            @Override
-            public void run() {
-                android.accounts.Account[] accountMgrList = AccountManager.get(exchangeService)
-                        .getAccountsByType(Email.EXCHANGE_ACCOUNT_MANAGER_TYPE);
-                synchronized (mAccountList) {
-                    // Make sure we have an up-to-date sAccountList.  If not (for example, if the
-                    // service has been destroyed), we would be reconciling against an empty account
-                    // list, which would cause the deletion of all of our accounts
-                    if (mAccountObserver != null) {
-                        mAccountObserver.onAccountChanged();
-                        MailService.reconcileAccountsWithAccountManager(exchangeService,
-                                mAccountList, accountMgrList, false, mResolver);
-                    }
-                }
+    private void runAccountReconcilerSync(Context context) {
+        android.accounts.Account[] accountMgrList = AccountManager.get(context)
+                .getAccountsByType(Email.EXCHANGE_ACCOUNT_MANAGER_TYPE);
+        synchronized (mAccountList) {
+            // Make sure we have an up-to-date sAccountList.  If not (for example, if the
+            // service has been destroyed), we would be reconciling against an empty account
+            // list, which would cause the deletion of all of our accounts
+            if (mAccountObserver != null) {
+                mAccountObserver.onAccountChanged();
+                MailService.reconcileAccountsWithAccountManager(context,
+                        mAccountList, accountMgrList, false, mResolver);
             }
-        }.start();
+        }
     }
 
     public static void log(String str) {
@@ -1752,7 +1750,6 @@ public class ExchangeService extends Service implements Runnable {
     @Override
     public void onCreate() {
         synchronized (sSyncLock) {
-            Email.setServicesEnabled(this);
             alwaysLog("!!! EAS ExchangeService, onCreate");
             if (sStop) {
                 return;
@@ -1765,9 +1762,17 @@ public class ExchangeService extends Service implements Runnable {
                     throw new RuntimeException(e);
                 }
             }
-            // Run the reconciler and clean up any mismatched accounts - if we weren't running when
-            // accounts were deleted, it won't have been called.
-            runAccountReconciler();
+            // Finally, run some setup activities off the UI thread
+            Utility.runAsync(new Runnable() {
+                @Override
+                public void run() {
+                    // Run the reconciler and clean up any mismatched accounts - if we weren't
+                    // running when accounts were deleted, it won't have been called.
+                    runAccountReconcilerSync(ExchangeService.this);
+                    // Update other services depending on final account configuration
+                    Email.setServicesEnabledSync(ExchangeService.this);
+                }
+            });
         }
     }
 

tests/src/com/android/email/activity/MessageComposeTests.java

@@ -137,7 +137,7 @@ public class MessageComposeTests
         }
         Account account = Account.restoreAccountWithId(mContext, accountId);
         mSignature = account.getSignature();
-        Email.setServicesEnabled(mContext);
+        Email.setServicesEnabledSync(mContext);
 
         Intent intent = new Intent(Intent.ACTION_VIEW);
         setActivityIntent(intent);