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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 "chrome/browser/renderer_host/web_cache_manager.h" | 5 #include "chrome/browser/renderer_host/web_cache_manager.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
11 #include "base/memory/singleton.h" | 11 #include "base/memory/singleton.h" |
12 #include "base/message_loop.h" | 12 #include "base/message_loop.h" |
13 #include "base/metrics/histogram.h" | 13 #include "base/metrics/histogram.h" |
14 #include "base/sys_info.h" | 14 #include "base/sys_info.h" |
15 #include "base/time.h" | 15 #include "base/time.h" |
16 #include "chrome/browser/browser_process.h" | 16 #include "chrome/browser/browser_process.h" |
17 #include "chrome/browser/prefs/pref_service.h" | 17 #include "chrome/browser/prefs/pref_service.h" |
18 #include "chrome/common/chrome_constants.h" | 18 #include "chrome/common/chrome_constants.h" |
19 #include "chrome/common/chrome_notification_types.h" | 19 #include "chrome/common/chrome_notification_types.h" |
20 #include "chrome/common/pref_names.h" | 20 #include "chrome/common/pref_names.h" |
21 #include "chrome/common/render_messages.h" | 21 #include "chrome/common/render_messages.h" |
22 #include "content/public/browser/notification_service.h" | 22 #include "content/public/browser/notification_service.h" |
23 #include "content/public/browser/render_process_host.h" | 23 #include "content/public/browser/render_process_host.h" |
24 | 24 |
25 using base::Time; | 25 using base::Time; |
26 using base::TimeDelta; | 26 using base::TimeDelta; |
27 using WebKit::WebCache; | 27 using WebKit::WebCache; |
28 | 28 |
29 static const int kReviseAllocationDelayMS = 200; | 29 static const unsigned int kReviseAllocationDelayMS = 200 /* milliseconds */; |
30 | 30 |
31 // The default size limit of the in-memory cache is 8 MB | 31 // The default size limit of the in-memory cache is 8 MB |
32 static const int kDefaultMemoryCacheSize = 8 * 1024 * 1024; | 32 static const int kDefaultMemoryCacheSize = 8 * 1024 * 1024; |
33 | 33 |
34 namespace { | 34 namespace { |
35 | 35 |
36 int GetDefaultCacheSize() { | 36 int GetDefaultCacheSize() { |
37 // Start off with a modest default | 37 // Start off with a modest default |
38 int default_cache_size = kDefaultMemoryCacheSize; | 38 int default_cache_size = kDefaultMemoryCacheSize; |
39 | 39 |
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414 } | 414 } |
415 } | 415 } |
416 | 416 |
417 void WebCacheManager::ReviseAllocationStrategyLater() { | 417 void WebCacheManager::ReviseAllocationStrategyLater() { |
418 // Ask to be called back in a few milliseconds to actually recompute our | 418 // Ask to be called back in a few milliseconds to actually recompute our |
419 // allocation. | 419 // allocation. |
420 MessageLoop::current()->PostDelayedTask(FROM_HERE, | 420 MessageLoop::current()->PostDelayedTask(FROM_HERE, |
421 base::Bind( | 421 base::Bind( |
422 &WebCacheManager::ReviseAllocationStrategy, | 422 &WebCacheManager::ReviseAllocationStrategy, |
423 weak_factory_.GetWeakPtr()), | 423 weak_factory_.GetWeakPtr()), |
424 base::TimeDelta::FromMilliseconds(kReviseAllocationDelayMS)); | 424 kReviseAllocationDelayMS); |
425 } | 425 } |
426 | 426 |
427 void WebCacheManager::FindInactiveRenderers() { | 427 void WebCacheManager::FindInactiveRenderers() { |
428 std::set<int>::const_iterator iter = active_renderers_.begin(); | 428 std::set<int>::const_iterator iter = active_renderers_.begin(); |
429 while (iter != active_renderers_.end()) { | 429 while (iter != active_renderers_.end()) { |
430 StatsMap::iterator elmt = stats_.find(*iter); | 430 StatsMap::iterator elmt = stats_.find(*iter); |
431 DCHECK(elmt != stats_.end()); | 431 DCHECK(elmt != stats_.end()); |
432 TimeDelta idle = Time::Now() - elmt->second.access; | 432 TimeDelta idle = Time::Now() - elmt->second.access; |
433 if (idle >= TimeDelta::FromMinutes(kRendererInactiveThresholdMinutes)) { | 433 if (idle >= TimeDelta::FromMinutes(kRendererInactiveThresholdMinutes)) { |
434 // Moved to inactive status. This invalidates our iterator. | 434 // Moved to inactive status. This invalidates our iterator. |
435 inactive_renderers_.insert(*iter); | 435 inactive_renderers_.insert(*iter); |
436 active_renderers_.erase(*iter); | 436 active_renderers_.erase(*iter); |
437 iter = active_renderers_.begin(); | 437 iter = active_renderers_.begin(); |
438 continue; | 438 continue; |
439 } | 439 } |
440 ++iter; | 440 ++iter; |
441 } | 441 } |
442 } | 442 } |
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