15d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#ifndef CHROME_BROWSER_SYNC_TEST_INTEGRATION_RETRY_VERIFIER_H_ 65d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#define CHROME_BROWSER_SYNC_TEST_INTEGRATION_RETRY_VERIFIER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/time/time.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace syncer { 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace sessions { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class SyncSessionSnapshot; 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace sessions 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace syncer 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The minimum and maximum wait times for a retry. The actual retry would take 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// place somewhere in this range. The algorithm that calculates the retry wait 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// time uses rand functions. 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct DelayInfo { 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 min_delay; 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 max_delay; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Class to verify retries take place using the exponential backoff algorithm. 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class RetryVerifier { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const int kMaxRetry = 3; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RetryVerifier(); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~RetryVerifier(); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int retry_count() const { return retry_count_; } 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Initialize with the current sync session snapshot. Using the snapshot 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // we will figure out when the first retry sync happened. 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Initialize(const syncer::sessions::SyncSessionSnapshot& snap); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void VerifyRetryInterval( 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const syncer::sessions::SyncSessionSnapshot& snap); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool done() const { return done_; } 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool Succeeded() const { return done() && success_; } 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int retry_count_; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Time last_sync_time_; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DelayInfo delay_table_[kMaxRetry]; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool success_; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool done_; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(RetryVerifier); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#endif // CHROME_BROWSER_SYNC_TEST_INTEGRATION_RETRY_VERIFIER_H_ 50