172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Copyright (c) 2010 The Chromium Authors. All rights reserved.
272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Use of this source code is governed by a BSD-style license that can be
372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// found in the LICENSE file.
472a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen
572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "base/basictypes.h"
672a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "chrome/browser/sync/engine/polling_constants.h"
772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen
872a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsennamespace browser_sync {
972a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen
1072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Server can overwrite these values via client commands.
1172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Standard short poll. This is used when XMPP is off.
1272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// We use high values here to ensure that failure to receive poll updates from
1372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// the server doesn't result in rapid-fire polling from the client due to low
1472a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// local limits.
1572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsenconst int64 kDefaultShortPollIntervalSeconds = 3600 * 8;
1672a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Long poll is used when XMPP is on.
1772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsenconst int64 kDefaultLongPollIntervalSeconds = 3600 * 12;
1872a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen
1972a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Maximum interval for exponential backoff.
2072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsenconst int64 kMaxBackoffSeconds = 60 * 60 * 4;  // 4 hours.
2172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen
2272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Backoff interval randomization factor.
2372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsenconst int kBackoffRandomizationFactor = 2;
2472a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen
2572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen}  // namespace browser_sync
2672a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen
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