Implement Invalidator::Acknowledge

sync/internal_api/sync_manager_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/internal_api/sync_manager_impl.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 615 matching lines @@
   invalidator_->UpdateRegisteredIds(handler, ids);
 }
 
 void SyncManagerImpl::UnregisterInvalidationHandler(
     InvalidationHandler* handler) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(initialized_);
   invalidator_->UnregisterHandler(handler);
 }
 
+void SyncManagerImpl::AcknowledgeInvalidation(
+    const invalidation::ObjectId& id, const syncer::AckHandle& ack_handle) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(initialized_);
+  invalidator_->Acknowledge(id, ack_handle);
+}
+
 void SyncManagerImpl::AddObserver(SyncManager::Observer* observer) {
   DCHECK(thread_checker_.CalledOnValidThread());
   observers_.AddObserver(observer);
 }
 
 void SyncManagerImpl::RemoveObserver(SyncManager::Observer* observer) {
   DCHECK(thread_checker_.CalledOnValidThread());
   observers_.RemoveObserver(observer);
 }
 
@@ skipping 584 matching lines @@
     js_event_handler_.Call(FROM_HERE,
                            &JsEventHandler::HandleJsEvent,
                            "onNotificationStateChange",
                            JsEventDetails(&details));
   }
 }
 
 void SyncManagerImpl::OnIncomingInvalidation(
     const ObjectIdInvalidationMap& invalidation_map) {
   DCHECK(thread_checker_.CalledOnValidThread());
+
+  // TODO(dcheng): Acknowledge immediately for now. Fix this logic eventually.

[rlarocque, 2013/02/12 21:48:04]

Could you add a comment to remind us not to remove this until the invalidator
doesn't repeatedly ping us when we don't immediately acknowledge?  Otherwise,
this would interfere with our scheduler's backoff algorithms.  

(I blame this on some unnecessary complexity in the scheduler more than the
invalidator code, but it's a problem nonetheless.)

[dcheng, 2013/02/12 22:39:28]

Done.

+  // crbug.com/124149
+  for (ObjectIdInvalidationMap::const_iterator it = invalidation_map.begin();
+       it != invalidation_map.end(); ++it) {
+    invalidator_->Acknowledge(it->first, it->second.ack_handle);
+  }
+
   const ModelTypeInvalidationMap& type_invalidation_map =
       ObjectIdInvalidationMapToModelTypeInvalidationMap(invalidation_map);
   if (type_invalidation_map.empty()) {
     LOG(WARNING) << "Sync received invalidation without any type information.";
   } else {
     allstatus_.IncrementNudgeCounter(NUDGE_SOURCE_NOTIFICATION);
     scheduler_->ScheduleNudgeWithStatesAsync(
         TimeDelta::FromMilliseconds(kSyncSchedulerDelayMsec),
         NUDGE_SOURCE_NOTIFICATION,
         type_invalidation_map, FROM_HERE);
@@ skipping 134 matching lines @@
 int SyncManagerImpl::GetDefaultNudgeDelay() {
   return kDefaultNudgeDelayMilliseconds;
 }
 
 // static.
 int SyncManagerImpl::GetPreferencesNudgeDelay() {
   return kPreferencesNudgeDelayMilliseconds;
 }
 
 }  // namespace syncer