| // Copyright 2014 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 "components/gcm_driver/gcm_backoff_policy.h" |
| |
| namespace gcm { |
| |
| namespace { |
| |
| // Backoff policy. Shared across GCM requests. |
| // Note: In order to ensure a minimum of 20 seconds between server errors (for |
| // server reasons), we have a 30s +- 10s (33%) jitter initial backoff. |
| const net::BackoffEntry::Policy kDefaultBackoffPolicy = { |
| // Number of initial errors (in sequence) to ignore before applying |
| // exponential back-off rules. |
| 0, |
| |
| // Initial delay for exponential back-off in ms. |
| 30 * 1000, // 30 seconds. |
| |
| // Factor by which the waiting time will be multiplied. |
| 2, |
| |
| // Fuzzing percentage. ex: 10% will spread requests randomly |
| // between 90%-100% of the calculated time. |
| 0.33, // 33%. |
| |
| // Maximum amount of time we are willing to delay our request in ms. |
| 10 * 60 * 1000, // 10 minutes. |
| |
| // Time to keep an entry from being discarded even when it |
| // has no significant state, -1 to never discard. |
| -1, |
| |
| // Don't use initial delay unless the last request was an error. |
| false, |
| }; |
| |
| } // namespace |
| |
| const net::BackoffEntry::Policy& GetGCMBackoffPolicy() { |
| return kDefaultBackoffPolicy; |
| } |
| |
| } // namespace gcm |