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1 // Copyright (c) 2010 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 "base/basictypes.h" | |
6 #include "chrome/browser/sync/engine/polling_constants.h" | |
7 | |
8 namespace browser_sync { | |
9 | |
10 // Server can overwrite these values via client commands. | |
11 // Standard short poll. This is used when XMPP is off. | |
12 // We use high values here to ensure that failure to receive poll updates from | |
13 // the server doesn't result in rapid-fire polling from the client due to low | |
14 // local limits. | |
15 const int64 kDefaultShortPollIntervalSeconds = 3600 * 8; | |
16 // Long poll is used when XMPP is on. | |
17 const int64 kDefaultLongPollIntervalSeconds = 3600 * 12; | |
18 | |
19 // Maximum interval for exponential backoff. | |
20 const int64 kMaxBackoffSeconds = 60 * 60 * 4; // 4 hours. | |
21 | |
22 // Backoff interval randomization factor. | |
23 const int kBackoffRandomizationFactor = 2; | |
24 | |
25 } // namespace browser_sync | |
26 | |
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