1 /*
2 * Copyright (C) 2008 Apple 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
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28 #include "config.h"
29 #include "OriginUsageRecord.h"
30
31 #if ENABLE(DATABASE)
32
33 #include "SQLiteFileSystem.h"
34
35 namespace WebCore {
36
OriginUsageRecord()37 OriginUsageRecord::OriginUsageRecord()
38 : m_cachedDiskUsageIsValid(false)
39 {
40 }
41
addDatabase(const String & identifier,const String & fullPath)42 void OriginUsageRecord::addDatabase(const String& identifier, const String& fullPath)
43 {
44 ASSERT(!m_databaseMap.contains(identifier));
45 ASSERT_ARG(identifier, identifier.impl()->hasOneRef() || identifier.isEmpty());
46 ASSERT_ARG(fullPath, fullPath.impl()->hasOneRef() || fullPath.isEmpty());
47
48 m_databaseMap.set(identifier, DatabaseEntry(fullPath));
49 m_unknownSet.add(identifier);
50
51 m_cachedDiskUsageIsValid = false;
52 }
53
removeDatabase(const String & identifier)54 void OriginUsageRecord::removeDatabase(const String& identifier)
55 {
56 ASSERT(m_databaseMap.contains(identifier));
57
58 m_databaseMap.remove(identifier);
59 m_unknownSet.remove(identifier);
60 m_cachedDiskUsageIsValid = false;
61 }
62
markDatabase(const String & identifier)63 void OriginUsageRecord::markDatabase(const String& identifier)
64 {
65 ASSERT(m_databaseMap.contains(identifier));
66 ASSERT_ARG(identifier, identifier.impl()->hasOneRef() || identifier.isEmpty());
67
68 m_unknownSet.add(identifier);
69 m_cachedDiskUsageIsValid = false;
70 }
71
diskUsage()72 unsigned long long OriginUsageRecord::diskUsage()
73 {
74 // Use the last cached usage value if we have it.
75 if (m_cachedDiskUsageIsValid)
76 return m_cachedDiskUsage;
77
78 // stat() for the sizes known to be dirty.
79 HashSet<String>::iterator iUnknown = m_unknownSet.begin();
80 HashSet<String>::iterator endUnknown = m_unknownSet.end();
81 for (; iUnknown != endUnknown; ++iUnknown) {
82 const String& path = m_databaseMap.get(*iUnknown).filename;
83 ASSERT(!path.isEmpty());
84
85 // When we can't determine the file size, we'll just have to assume the file is missing/inaccessible.
86 long long size = SQLiteFileSystem::getDatabaseFileSize(path);
87 m_databaseMap.set(*iUnknown, DatabaseEntry(path, size));
88 }
89 m_unknownSet.clear();
90
91 // Recalculate the cached usage value.
92 m_cachedDiskUsage = 0;
93 HashMap<String, DatabaseEntry>::iterator iDatabase = m_databaseMap.begin();
94 HashMap<String, DatabaseEntry>::iterator endDatabase = m_databaseMap.end();
95 for (; iDatabase != endDatabase; ++iDatabase)
96 m_cachedDiskUsage += iDatabase->second.size;
97
98 m_cachedDiskUsageIsValid = true;
99 return m_cachedDiskUsage;
100 }
101
102 }
103
104 #endif
105