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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 SYNC_INTERNAL_API_PROTOCOL_EVENT_BUFFER_H_ | 5 #ifndef COMPONENTS_SYNC_CORE_IMPL_PROTOCOL_EVENT_BUFFER_H_ |
| 6 #define SYNC_INTERNAL_API_PROTOCOL_EVENT_BUFFER_H_ | 6 #define COMPONENTS_SYNC_CORE_IMPL_PROTOCOL_EVENT_BUFFER_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 | 9 |
| 10 #include <deque> | 10 #include <deque> |
| 11 | 11 |
| 12 #include "base/macros.h" | 12 #include "base/macros.h" |
| 13 #include "base/memory/scoped_vector.h" | 13 #include "base/memory/scoped_vector.h" |
| 14 #include "sync/base/sync_export.h" | 14 #include "components/sync/base/sync_export.h" |
| 15 | 15 |
| 16 namespace syncer { | 16 namespace syncer { |
| 17 | 17 |
| 18 class ProtocolEvent; | 18 class ProtocolEvent; |
| 19 | 19 |
| 20 // A container for ProtocolEvents. | 20 // A container for ProtocolEvents. |
| 21 // | 21 // |
| 22 // Stores at most kBufferSize events, then starts dropping the oldest events. | 22 // Stores at most kBufferSize events, then starts dropping the oldest events. |
| 23 class SYNC_EXPORT ProtocolEventBuffer { | 23 class SYNC_EXPORT ProtocolEventBuffer { |
| 24 public: | 24 public: |
| 25 static const size_t kBufferSize; | 25 static const size_t kBufferSize; |
| 26 | 26 |
| 27 ProtocolEventBuffer(); | 27 ProtocolEventBuffer(); |
| 28 ~ProtocolEventBuffer(); | 28 ~ProtocolEventBuffer(); |
| 29 | 29 |
| 30 // Records an event. May cause the oldest event to be dropped. | 30 // Records an event. May cause the oldest event to be dropped. |
| 31 void RecordProtocolEvent(const ProtocolEvent& event); | 31 void RecordProtocolEvent(const ProtocolEvent& event); |
| 32 | 32 |
| 33 // Returns the buffered contents. Will not clear the buffer. | 33 // Returns the buffered contents. Will not clear the buffer. |
| 34 ScopedVector<ProtocolEvent> GetBufferedProtocolEvents() const; | 34 ScopedVector<ProtocolEvent> GetBufferedProtocolEvents() const; |
| 35 | 35 |
| 36 private: | 36 private: |
| 37 std::deque<ProtocolEvent*> buffer_; | 37 std::deque<ProtocolEvent*> buffer_; |
| 38 STLElementDeleter<std::deque<ProtocolEvent*> > buffer_deleter_; | 38 STLElementDeleter<std::deque<ProtocolEvent*>> buffer_deleter_; |
| 39 | 39 |
| 40 DISALLOW_COPY_AND_ASSIGN(ProtocolEventBuffer); | 40 DISALLOW_COPY_AND_ASSIGN(ProtocolEventBuffer); |
| 41 }; | 41 }; |
| 42 | 42 |
| 43 } // namespace syncer | 43 } // namespace syncer |
| 44 | 44 |
| 45 #endif // SYNC_INTERNAL_API_PROTOCOL_EVENT_BUFFER_H_ | 45 #endif // COMPONENTS_SYNC_CORE_IMPL_PROTOCOL_EVENT_BUFFER_H_ |
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