| // Copyright 2013 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. |
| |
| #ifndef SYNC_UTIL_EXTENSIONS_ACTIVITY_H_ |
| #define SYNC_UTIL_EXTENSIONS_ACTIVITY_H_ |
| |
| #include <map> |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/synchronization/lock.h" |
| #include "sync/base/sync_export.h" |
| |
| namespace syncer { |
| |
| // A storage to record usage of extensions APIs to send to sync |
| // servers, with the ability to purge data once sync servers have |
| // acknowledged it (successful commit response). |
| class SYNC_EXPORT ExtensionsActivity |
| : public base::RefCountedThreadSafe<ExtensionsActivity> { |
| public: |
| // A data record of activity performed by extension |extension_id|. |
| struct SYNC_EXPORT Record { |
| Record(); |
| ~Record(); |
| |
| // The human-readable ID identifying the extension responsible |
| // for the activity reported in this Record. |
| std::string extension_id; |
| |
| // How many times the extension successfully invoked a write |
| // operation through the bookmarks API since the last CommitMessage. |
| uint32 bookmark_write_count; |
| }; |
| |
| typedef std::map<std::string, Record> Records; |
| |
| ExtensionsActivity(); |
| |
| // Fill |buffer| with all current records and then clear the |
| // internal records. Called on sync thread to append records to sync commit |
| // message. |
| void GetAndClearRecords(Records* buffer); |
| |
| // Merge |records| with the current set of records. Called on sync thread to |
| // put back records if sync commit failed. |
| void PutRecords(const Records& records); |
| |
| // Increment write count of the specified extension. |
| void UpdateRecord(const std::string& extension_id); |
| |
| private: |
| friend class base::RefCountedThreadSafe<ExtensionsActivity>; |
| ~ExtensionsActivity(); |
| |
| Records records_; |
| mutable base::Lock records_lock_; |
| }; |
| |
| } // namespace syncer |
| |
| #endif // SYNC_UTIL_EXTENSIONS_ACTIVITY_H_ |