memory_history.cc revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd
12a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Copyright 2012 The Chromium Authors. All rights reserved. 22a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 32a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// found in the LICENSE file. 42a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/resources/memory_history.h" 62a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace cc { 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// static 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_ptr<MemoryHistory> MemoryHistory::Create() { 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return make_scoped_ptr(new MemoryHistory()); 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)MemoryHistory::MemoryHistory() {} 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void MemoryHistory::SaveEntry(const MemoryHistory::Entry& entry) { 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ring_buffer_.SaveToBuffer(entry); 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void MemoryHistory::GetMinAndMax(size_t* min, size_t* max) const { 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *min = std::numeric_limits<size_t>::max(); 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *max = 0; 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (RingBufferType::Iterator it = ring_buffer_.Begin(); it; ++it) { 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t bytes_total = it->bytes_total(); 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (bytes_total < *min) 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *min = bytes_total; 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (bytes_total > *max) 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *max = bytes_total; 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (*min > *max) 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *min = *max; 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace cc 38