1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "WebCache.h"
33
34 #include "core/fetch/MemoryCache.h"
35
36 using WebCore::MemoryCache;
37
38 namespace blink {
39
40 // A helper method for coverting a MemoryCache::TypeStatistic to a
41 // WebCache::ResourceTypeStat.
ToResourceTypeStat(const MemoryCache::TypeStatistic & from,WebCache::ResourceTypeStat & to)42 static void ToResourceTypeStat(const MemoryCache::TypeStatistic& from,
43 WebCache::ResourceTypeStat& to)
44 {
45 to.count = static_cast<size_t>(from.count);
46 to.size = static_cast<size_t>(from.size);
47 to.liveSize = static_cast<size_t>(from.liveSize);
48 to.decodedSize = static_cast<size_t>(from.decodedSize);
49 }
50
setCapacities(size_t minDeadCapacity,size_t maxDeadCapacity,size_t capacity)51 void WebCache::setCapacities(
52 size_t minDeadCapacity, size_t maxDeadCapacity, size_t capacity)
53 {
54 MemoryCache* cache = WebCore::memoryCache();
55 if (cache)
56 cache->setCapacities(static_cast<unsigned int>(minDeadCapacity),
57 static_cast<unsigned int>(maxDeadCapacity),
58 static_cast<unsigned int>(capacity));
59 }
60
clear()61 void WebCache::clear()
62 {
63 MemoryCache* cache = WebCore::memoryCache();
64 if (cache)
65 cache->evictResources();
66 }
67
getUsageStats(UsageStats * result)68 void WebCache::getUsageStats(UsageStats* result)
69 {
70 ASSERT(result);
71
72 MemoryCache* cache = WebCore::memoryCache();
73 if (cache) {
74 result->minDeadCapacity = cache->minDeadCapacity();
75 result->maxDeadCapacity = cache->maxDeadCapacity();
76 result->capacity = cache->capacity();
77 result->liveSize = cache->liveSize();
78 result->deadSize = cache->deadSize();
79 } else
80 memset(result, 0, sizeof(UsageStats));
81 }
82
getResourceTypeStats(ResourceTypeStats * result)83 void WebCache::getResourceTypeStats(ResourceTypeStats* result)
84 {
85 MemoryCache* cache = WebCore::memoryCache();
86 if (cache) {
87 MemoryCache::Statistics stats = cache->getStatistics();
88 ToResourceTypeStat(stats.images, result->images);
89 ToResourceTypeStat(stats.cssStyleSheets, result->cssStyleSheets);
90 ToResourceTypeStat(stats.scripts, result->scripts);
91 ToResourceTypeStat(stats.xslStyleSheets, result->xslStyleSheets);
92 ToResourceTypeStat(stats.fonts, result->fonts);
93 } else
94 memset(result, 0, sizeof(WebCache::ResourceTypeStats));
95 }
96
97 } // namespace blink
98