1 // Copyright 2014 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.
5 #ifndef CHROME_BROWSER_SYNC_TEST_INTEGRATION_QUIESCE_STATUS_CHANGE_CHECKER_H_
6 #define CHROME_BROWSER_SYNC_TEST_INTEGRATION_QUIESCE_STATUS_CHANGE_CHECKER_H_
10 #include "base/basictypes.h"
11 #include "base/compiler_specific.h"
12 #include "base/memory/scoped_vector.h"
13 #include "base/time/time.h"
14 #include "chrome/browser/sync/test/integration/status_change_checker.h"
16 class ProfileSyncService
;
17 class ProgressMarkerWatcher
;
19 // Waits until all provided clients have finished committing any unsynced items
20 // and downloading each others' udpates.
22 // This requires that "self-notifications" be enabled. Otherwise the clients
23 // will not fetch the latest progress markers on their own, and the latest
24 // progress markers are needed to confirm that clients are in sync.
26 // There is a race condition here. If we manage to perform the check at
27 // precisely the wrong time, we could end up seeing stale snapshot state
28 // (crbug.com/95742), which would make us think that the client has finished
29 // syncing when it hasn't. In practice, this race is rare enough that it
30 // doesn't cause test failures.
31 class QuiesceStatusChangeChecker
: public StatusChangeChecker
{
33 explicit QuiesceStatusChangeChecker(
34 std::vector
<ProfileSyncService
*> services
);
35 ~QuiesceStatusChangeChecker() override
;
37 // Blocks until all clients have quiesced or we time out.
40 // A callback function for some helper objects.
41 void OnServiceStateChanged(ProfileSyncService
* service
);
43 // Implementation of StatusChangeChecker.
44 bool IsExitConditionSatisfied() override
;
45 std::string
GetDebugMessage() const override
;
48 std::vector
<ProfileSyncService
*> services_
;
49 ScopedVector
<ProgressMarkerWatcher
> observers_
;
51 DISALLOW_COPY_AND_ASSIGN(QuiesceStatusChangeChecker
);
54 #endif // CHROME_BROWSER_SYNC_TEST_INTEGRATION_QUIESCE_STATUS_CHANGE_CHECKER_H_