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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_METRICS_METRICS_LOG_MANAGER_H_ | 5 #ifndef COMPONENTS_METRICS_METRICS_LOG_MANAGER_H_ |
| 6 #define COMPONENTS_METRICS_METRICS_LOG_MANAGER_H_ | 6 #define COMPONENTS_METRICS_METRICS_LOG_MANAGER_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 | 9 |
| 10 #include <memory> |
| 10 #include <string> | 11 #include <string> |
| 11 #include <vector> | 12 #include <vector> |
| 12 | 13 |
| 13 #include "base/macros.h" | 14 #include "base/macros.h" |
| 14 #include "base/memory/scoped_ptr.h" | |
| 15 #include "components/metrics/metrics_log.h" | 15 #include "components/metrics/metrics_log.h" |
| 16 #include "components/metrics/persisted_logs.h" | 16 #include "components/metrics/persisted_logs.h" |
| 17 | 17 |
| 18 namespace metrics { | 18 namespace metrics { |
| 19 | 19 |
| 20 // Manages all the log objects used by a MetricsService implementation. Keeps | 20 // Manages all the log objects used by a MetricsService implementation. Keeps |
| 21 // track of both an in progress log and a log that is staged for uploading as | 21 // track of both an in progress log and a log that is staged for uploading as |
| 22 // text, as well as saving logs to, and loading logs from, persistent storage. | 22 // text, as well as saving logs to, and loading logs from, persistent storage. |
| 23 class MetricsLogManager { | 23 class MetricsLogManager { |
| 24 public: | 24 public: |
| 25 // The metrics log manager will persist it's unsent logs by storing them in | 25 // The metrics log manager will persist it's unsent logs by storing them in |
| 26 // |local_state|, and will not persist ongoing logs over | 26 // |local_state|, and will not persist ongoing logs over |
| 27 // |max_ongoing_log_size|. | 27 // |max_ongoing_log_size|. |
| 28 MetricsLogManager(PrefService* local_state, size_t max_ongoing_log_size); | 28 MetricsLogManager(PrefService* local_state, size_t max_ongoing_log_size); |
| 29 ~MetricsLogManager(); | 29 ~MetricsLogManager(); |
| 30 | 30 |
| 31 // Makes |log| the current_log. This should only be called if there is not a | 31 // Makes |log| the current_log. This should only be called if there is not a |
| 32 // current log. | 32 // current log. |
| 33 void BeginLoggingWithLog(scoped_ptr<MetricsLog> log); | 33 void BeginLoggingWithLog(std::unique_ptr<MetricsLog> log); |
| 34 | 34 |
| 35 // Returns the in-progress log. | 35 // Returns the in-progress log. |
| 36 MetricsLog* current_log() { return current_log_.get(); } | 36 MetricsLog* current_log() { return current_log_.get(); } |
| 37 | 37 |
| 38 // Closes current_log(), compresses it, and stores the compressed log for | 38 // Closes current_log(), compresses it, and stores the compressed log for |
| 39 // later, leaving current_log() NULL. | 39 // later, leaving current_log() NULL. |
| 40 void FinishCurrentLog(); | 40 void FinishCurrentLog(); |
| 41 | 41 |
| 42 // Returns true if there are any logs waiting to be uploaded. | 42 // Returns true if there are any logs waiting to be uploaded. |
| 43 bool has_unsent_logs() const { | 43 bool has_unsent_logs() const { |
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| 94 | 94 |
| 95 // Saves |log_data| as the given type. Public to allow to push log created by | 95 // Saves |log_data| as the given type. Public to allow to push log created by |
| 96 // external components. | 96 // external components. |
| 97 void StoreLog(const std::string& log_data, MetricsLog::LogType log_type); | 97 void StoreLog(const std::string& log_data, MetricsLog::LogType log_type); |
| 98 | 98 |
| 99 private: | 99 private: |
| 100 // Tracks whether unsent logs (if any) have been loaded from the serializer. | 100 // Tracks whether unsent logs (if any) have been loaded from the serializer. |
| 101 bool unsent_logs_loaded_; | 101 bool unsent_logs_loaded_; |
| 102 | 102 |
| 103 // The log that we are still appending to. | 103 // The log that we are still appending to. |
| 104 scoped_ptr<MetricsLog> current_log_; | 104 std::unique_ptr<MetricsLog> current_log_; |
| 105 | 105 |
| 106 // A paused, previously-current log. | 106 // A paused, previously-current log. |
| 107 scoped_ptr<MetricsLog> paused_log_; | 107 std::unique_ptr<MetricsLog> paused_log_; |
| 108 | 108 |
| 109 // Logs that have not yet been sent. | 109 // Logs that have not yet been sent. |
| 110 PersistedLogs initial_log_queue_; | 110 PersistedLogs initial_log_queue_; |
| 111 PersistedLogs ongoing_log_queue_; | 111 PersistedLogs ongoing_log_queue_; |
| 112 | 112 |
| 113 DISALLOW_COPY_AND_ASSIGN(MetricsLogManager); | 113 DISALLOW_COPY_AND_ASSIGN(MetricsLogManager); |
| 114 }; | 114 }; |
| 115 | 115 |
| 116 } // namespace metrics | 116 } // namespace metrics |
| 117 | 117 |
| 118 #endif // COMPONENTS_METRICS_METRICS_LOG_MANAGER_H_ | 118 #endif // COMPONENTS_METRICS_METRICS_LOG_MANAGER_H_ |
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