sync/engine/store_timestamps_command.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "sync/engine/store_timestamps_command.h"
   6
   7 #include "sync/internal_api/public/base/model_type.h"
   8 #include "sync/sessions/status_controller.h"
   9 #include "sync/sessions/sync_session.h"
  10 #include "sync/syncable/directory.h"
  11
  12 namespace syncer {
  13
  14 StoreTimestampsCommand::StoreTimestampsCommand() {}
  15 StoreTimestampsCommand::~StoreTimestampsCommand() {}
  16
  17 SyncerError StoreTimestampsCommand::ExecuteImpl(
  18     sessions::SyncSession* session) {
  19   syncable::Directory* dir = session->context()->directory();
  20
  21   const sync_pb::GetUpdatesResponse& updates =
  22       session->status_controller().updates_response().get_updates();
  23
  24   sessions::StatusController* status = session->mutable_status_controller();
  25
  26   // Update the progress marker tokens from the server result.  If a marker
  27   // was omitted for any one type, that indicates no change from the previous
  28   // state.
  29   ModelTypeSet forward_progress_types;
  30   for (int i = 0; i < updates.new_progress_marker_size(); ++i) {
  31     ModelType model =
  32         GetModelTypeFromSpecificsFieldNumber(
  33             updates.new_progress_marker(i).data_type_id());
  34     if (model == UNSPECIFIED || model == TOP_LEVEL_FOLDER) {
  35       NOTREACHED() << "Unintelligible server response.";
  36       continue;
  37     }
  38     forward_progress_types.Put(model);
  39     dir->SetDownloadProgress(model, updates.new_progress_marker(i));
  40   }
  41   DCHECK(!forward_progress_types.Empty() ||
  42          updates.changes_remaining() == 0);
  43   if (VLOG_IS_ON(1)) {
  44     DVLOG_IF(1, !forward_progress_types.Empty())
  45         << "Get Updates got new progress marker for types: "
  46         << ModelTypeSetToString(forward_progress_types)
  47         << " out of possible: "
  48         << ModelTypeSetToString(status->updates_request_types());
  49   }
  50   if (updates.has_changes_remaining()) {
  51     int64 changes_left = updates.changes_remaining();
  52     DVLOG(1) << "Changes remaining: " << changes_left;
  53     status->set_num_server_changes_remaining(changes_left);
  54   }
  55
  56   return SYNCER_OK;
  57 }
  58
  59 }  // namespace syncer