| // Copyright 2015 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 CHROME_BROWSER_ANDROID_HISTORY_REPORT_USAGE_REPORTS_BUFFER_SERVICE_H_ |
| #define CHROME_BROWSER_ANDROID_HISTORY_REPORT_USAGE_REPORTS_BUFFER_SERVICE_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/threading/sequenced_worker_pool.h" |
| |
| namespace base { |
| class FilePath; |
| } // namespace base |
| |
| namespace history_report { |
| |
| class UsageReport; |
| class UsageReportsBufferBackend; |
| |
| // This class is intended to be created once and not destroyed until process is |
| // killed. |backend_| is assumed to be a long lived pointer. |
| class UsageReportsBufferService { |
| public: |
| explicit UsageReportsBufferService(const base::FilePath& dir); |
| ~UsageReportsBufferService(); |
| |
| // Init buffer. All calls to buffer before it's initialized are ignored. It's |
| // asynchronous. |
| void Init(); |
| |
| // Add report about page visit to the buffer. It's asynchronous. |
| virtual void AddVisit(const std::string& id, |
| int64_t timestamp_ms, |
| bool typed_visit); |
| |
| // Get a batch of usage reports of size up to |batch_size|. It's synchronous. |
| std::unique_ptr<std::vector<UsageReport>> GetUsageReportsBatch( |
| int32_t batch_size); |
| |
| // Remove given usage reports from buffer. It's synchronous. |
| void Remove(const std::vector<std::string>& report_ids); |
| |
| // Clears buffer by removing all usage reports from it. |
| void Clear(); |
| |
| // Dumps internal state to string. |
| std::string Dump(); |
| |
| private: |
| // Token used to serialize buffer operations. |
| base::SequencedWorkerPool::SequenceToken worker_pool_token_; |
| // Non thread safe backend. |
| std::unique_ptr<UsageReportsBufferBackend> backend_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UsageReportsBufferService); |
| }; |
| |
| } // namespace history_report |
| |
| #endif // CHROME_BROWSER_ANDROID_HISTORY_REPORT_USAGE_REPORTS_BUFFER_SERVICE_H_ |