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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 #include "cc/resources/memory_history.h" | 5 #include "cc/resources/memory_history.h" |
| 6 | 6 |
| 7 #include <limits> | 7 #include <limits> |
| 8 | 8 |
| 9 namespace cc { | 9 namespace cc { |
| 10 | 10 |
| 11 // static | 11 // static |
| 12 scoped_ptr<MemoryHistory> MemoryHistory::Create() { | 12 scoped_ptr<MemoryHistory> MemoryHistory::Create() { |
| 13 return make_scoped_ptr(new MemoryHistory()); | 13 return make_scoped_ptr(new MemoryHistory()); |
| 14 } | 14 } |
| 15 | 15 |
| 16 MemoryHistory::MemoryHistory() {} | 16 MemoryHistory::MemoryHistory() {} |
| 17 | 17 |
| 18 void MemoryHistory::SaveEntry(const MemoryHistory::Entry& entry) { | 18 void MemoryHistory::SaveEntry(const MemoryHistory::Entry& entry) { |
| 19 ring_buffer_.SaveToBuffer(entry); | 19 ring_buffer_.SaveToBuffer(entry); |
| 20 } | 20 } |
| 21 | 21 |
| 22 void MemoryHistory::GetMinAndMax(size_t* min, size_t* max) const { | 22 void MemoryHistory::GetMinAndMax(size_t* min, size_t* max) const { |
| 23 *min = std::numeric_limits<size_t>::max(); | 23 *min = std::numeric_limits<size_t>::max(); |
| 24 *max = 0; | 24 *max = 0; |
| 25 | 25 |
| 26 for (RingBufferType::Iterator it = ring_buffer_.Begin(); it; ++it) { | 26 for (RingBufferType::Iterator it = ring_buffer_.Begin(); it; ++it) { |
| 27 size_t bytes_total = it->bytes_total(); | 27 size_t bytes_total = it->total_bytes_used; |
| 28 | 28 |
| 29 if (bytes_total < *min) | 29 if (bytes_total < *min) |
| 30 *min = bytes_total; | 30 *min = bytes_total; |
| 31 if (bytes_total > *max) | 31 if (bytes_total > *max) |
| 32 *max = bytes_total; | 32 *max = bytes_total; |
| 33 } | 33 } |
| 34 | 34 |
| 35 if (*min > *max) | 35 if (*min > *max) |
| 36 *min = *max; | 36 *min = *max; |
| 37 } | 37 } |
| 38 | 38 |
| 39 } // namespace cc | 39 } // namespace cc |
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