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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CHROME_BROWSER_ANDROID_HISTORY_REPORT_USAGE_REPORTS_BUFFER_SERVICE_H_ |
| 6 #define CHROME_BROWSER_ANDROID_HISTORY_REPORT_USAGE_REPORTS_BUFFER_SERVICE_H_ |
| 7 |
| 8 #include <string> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/memory/scoped_ptr.h" |
| 12 #include "base/threading/sequenced_worker_pool.h" |
| 13 |
| 14 namespace base { |
| 15 class FilePath; |
| 16 } // namespace base |
| 17 |
| 18 namespace history_report { |
| 19 |
| 20 class UsageReport; |
| 21 class UsageReportsBufferBackend; |
| 22 |
| 23 // This class is intended to be created once and not destroyed until process is |
| 24 // killed. |backend_| is assumed to be a long lived pointer. |
| 25 class UsageReportsBufferService { |
| 26 public: |
| 27 explicit UsageReportsBufferService(const base::FilePath& dir); |
| 28 ~UsageReportsBufferService(); |
| 29 |
| 30 // Init buffer. All calls to buffer before it's initialized are ignored. It's |
| 31 // asynchronous. |
| 32 void Init(); |
| 33 |
| 34 // Add report about page visit to the buffer. It's asynchronous. |
| 35 void AddVisit(const std::string& id, int64 timestamp_ms, bool typed_visit); |
| 36 |
| 37 // Get a batch of usage reports of size up to |batch_size|. It's synchronous. |
| 38 scoped_ptr<std::vector<UsageReport> > GetUsageReportsBatch(int32 batch_size); |
| 39 |
| 40 // Remove given usage reports from buffer. It's synchronous. |
| 41 void Remove(const std::vector<std::string>& report_ids); |
| 42 |
| 43 // Clears buffer by removing all usage reports from it. |
| 44 void Clear(); |
| 45 |
| 46 // Dumps internal state to string. |
| 47 std::string Dump(); |
| 48 |
| 49 private: |
| 50 // Token used to serialize buffer operations. |
| 51 base::SequencedWorkerPool::SequenceToken worker_pool_token_; |
| 52 // Non thread safe backend. |
| 53 scoped_ptr<UsageReportsBufferBackend> backend_; |
| 54 |
| 55 DISALLOW_COPY_AND_ASSIGN(UsageReportsBufferService); |
| 56 }; |
| 57 |
| 58 } // namespace history_report |
| 59 |
| 60 #endif // CHROME_BROWSER_ANDROID_HISTORY_REPORT_USAGE_REPORTS_BUFFER_SERVICE_H_ |
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