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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef COMPONENTS_PROXIMITY_AUTH_CRYPTAUTH_SYNC_SCHEDULER_H | 5 #ifndef COMPONENTS_PROXIMITY_AUTH_CRYPTAUTH_SYNC_SCHEDULER_H |
| 6 #define COMPONENTS_PROXIMITY_AUTH_CRYPTAUTH_SYNC_SCHEDULER_H | 6 #define COMPONENTS_PROXIMITY_AUTH_CRYPTAUTH_SYNC_SCHEDULER_H |
| 7 | 7 |
| 8 #include <memory> | 8 #include <memory> |
| 9 | 9 |
| 10 #include "base/macros.h" | 10 #include "base/macros.h" |
| 11 #include "base/memory/weak_ptr.h" | 11 #include "base/memory/weak_ptr.h" |
| 12 #include "base/time/time.h" | 12 #include "base/time/time.h" |
| 13 | 13 |
| 14 namespace proximity_auth { | 14 namespace cryptauth { |
| 15 | 15 |
| 16 // Interface for scheduling the next CryptAuth sync (e.g. enrollment or device | 16 // Interface for scheduling the next CryptAuth sync (e.g. enrollment or device |
| 17 // sync). The scheduler has two different strategies affecting when to perform | 17 // sync). The scheduler has two different strategies affecting when to perform |
| 18 // the next operation: | 18 // the next operation: |
| 19 // PERIODIC_REFRESH: The last sync was made successfully, so we can wait a | 19 // PERIODIC_REFRESH: The last sync was made successfully, so we can wait a |
| 20 // relatively long time before making another sync. | 20 // relatively long time before making another sync. |
| 21 // AGGRESSIVE_RECOVERY: The last sync failed, so we try more aggressively to | 21 // AGGRESSIVE_RECOVERY: The last sync failed, so we try more aggressively to |
| 22 // make enrollment attempts with subsequent backoff for repeated | 22 // make enrollment attempts with subsequent backoff for repeated |
| 23 // failures. | 23 // failures. |
| 24 // A random jitter is applied to each sync period to smooth qps to the server. | 24 // A random jitter is applied to each sync period to smooth qps to the server. |
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| 86 virtual Strategy GetStrategy() const = 0; | 86 virtual Strategy GetStrategy() const = 0; |
| 87 | 87 |
| 88 // Returns the current state of the scheduler. | 88 // Returns the current state of the scheduler. |
| 89 virtual SyncState GetSyncState() const = 0; | 89 virtual SyncState GetSyncState() const = 0; |
| 90 | 90 |
| 91 protected: | 91 protected: |
| 92 // Called by SyncRequest instances when the sync completes. | 92 // Called by SyncRequest instances when the sync completes. |
| 93 virtual void OnSyncCompleted(bool success) = 0; | 93 virtual void OnSyncCompleted(bool success) = 0; |
| 94 }; | 94 }; |
| 95 | 95 |
| 96 } // namespace proximity_auth | 96 } // namespace cryptauth |
| 97 | 97 |
| 98 #endif // COMPONENTS_PROXIMITY_CRYPTAUTH_SYNC_SCHEDULER_H | 98 #endif // COMPONENTS_PROXIMITY_CRYPTAUTH_SYNC_SCHEDULER_H |
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