Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(556)

Side by Side Diff: Source/platform/PurgeableVector.cpp

Issue 400543004: Rename WebCore namespace to blink in Platform (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 5 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « Source/platform/PurgeableVector.h ('k') | Source/platform/PurgeableVectorTest.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 /* 1 /*
2 * Copyright (C) 2014 Google Inc. All rights reserved. 2 * Copyright (C) 2014 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
(...skipping 21 matching lines...) Expand all
32 #include "platform/PurgeableVector.h" 32 #include "platform/PurgeableVector.h"
33 33
34 #include "public/platform/Platform.h" 34 #include "public/platform/Platform.h"
35 #include "public/platform/WebDiscardableMemory.h" 35 #include "public/platform/WebDiscardableMemory.h"
36 #include "wtf/Assertions.h" 36 #include "wtf/Assertions.h"
37 #include "wtf/OwnPtr.h" 37 #include "wtf/OwnPtr.h"
38 #include "wtf/PassOwnPtr.h" 38 #include "wtf/PassOwnPtr.h"
39 39
40 #include <cstring> 40 #include <cstring>
41 41
42 namespace WebCore { 42 namespace blink {
43 43
44 // WebDiscardableMemory allocations are expensive and page-grained. We only use 44 // WebDiscardableMemory allocations are expensive and page-grained. We only use
45 // them when there's a reasonable amount of memory to be saved by the OS 45 // them when there's a reasonable amount of memory to be saved by the OS
46 // discarding the memory. 46 // discarding the memory.
47 static const size_t minimumDiscardableAllocationSize = 4 * 4096; 47 static const size_t minimumDiscardableAllocationSize = 4 * 4096;
48 48
49 PurgeableVector::PurgeableVector(PurgeableOption purgeable) 49 PurgeableVector::PurgeableVector(PurgeableOption purgeable)
50 : m_discardableCapacity(0) 50 : m_discardableCapacity(0)
51 , m_discardableSize(0) 51 , m_discardableSize(0)
52 , m_isPurgeable(purgeable == Purgeable) 52 , m_isPurgeable(purgeable == Purgeable)
(...skipping 199 matching lines...) Expand 10 before | Expand all | Expand 10 after
252 // Discardable memory has page-granularity so align to the next page here to minimize 252 // Discardable memory has page-granularity so align to the next page here to minimize
253 // fragmentation. 253 // fragmentation.
254 // Since the page size is only used below to minimize fragmentation it's sti ll safe to use it 254 // Since the page size is only used below to minimize fragmentation it's sti ll safe to use it
255 // even if it gets out of sync (e.g. due to the use of huge pages). 255 // even if it gets out of sync (e.g. due to the use of huge pages).
256 const size_t kPageSize = 4096; 256 const size_t kPageSize = 4096;
257 newCapacity = (newCapacity + kPageSize - 1) & ~(kPageSize - 1); 257 newCapacity = (newCapacity + kPageSize - 1) & ~(kPageSize - 1);
258 258
259 return std::max(capacity, newCapacity); // Overflow check. 259 return std::max(capacity, newCapacity); // Overflow check.
260 } 260 }
261 261
262 } // namespace WebCore 262 } // namespace blink
OLDNEW
« no previous file with comments | « Source/platform/PurgeableVector.h ('k') | Source/platform/PurgeableVectorTest.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698