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 "OriginQuotaManager.h"
30
31 #if ENABLE(DATABASE)
32
33 #include "AbstractDatabase.h"
34 #include "OriginUsageRecord.h"
35
36 namespace WebCore {
37
OriginQuotaManager()38 OriginQuotaManager::OriginQuotaManager()
39 #ifndef NDEBUG
40 : m_usageRecordGuardLocked(false)
41 #endif
42 {
43 }
44
tryLock()45 bool OriginQuotaManager::tryLock()
46 {
47 bool locked = m_usageRecordGuard.tryLock();
48 #ifndef NDEBUG
49 if (locked)
50 m_usageRecordGuardLocked = true;
51 else
52 ASSERT(m_usageRecordGuardLocked);
53 #endif
54 return locked;
55 }
56
lock()57 void OriginQuotaManager::lock()
58 {
59 m_usageRecordGuard.lock();
60 #ifndef NDEBUG
61 m_usageRecordGuardLocked = true;
62 #endif
63 }
64
unlock()65 void OriginQuotaManager::unlock()
66 {
67 #ifndef NDEBUG
68 m_usageRecordGuardLocked = false;
69 #endif
70 m_usageRecordGuard.unlock();
71 }
72
trackOrigin(PassRefPtr<SecurityOrigin> origin)73 void OriginQuotaManager::trackOrigin(PassRefPtr<SecurityOrigin> origin)
74 {
75 ASSERT(m_usageRecordGuardLocked);
76 ASSERT(!m_usageMap.contains(origin.get()));
77
78 m_usageMap.set(origin->threadsafeCopy(), new OriginUsageRecord);
79 }
80
tracksOrigin(SecurityOrigin * origin) const81 bool OriginQuotaManager::tracksOrigin(SecurityOrigin* origin) const
82 {
83 ASSERT(m_usageRecordGuardLocked);
84 return m_usageMap.contains(origin);
85 }
86
addDatabase(SecurityOrigin * origin,const String & databaseIdentifier,const String & fullPath)87 void OriginQuotaManager::addDatabase(SecurityOrigin* origin, const String& databaseIdentifier, const String& fullPath)
88 {
89 ASSERT(m_usageRecordGuardLocked);
90
91 OriginUsageRecord* usageRecord = m_usageMap.get(origin);
92 ASSERT(usageRecord);
93
94 usageRecord->addDatabase(databaseIdentifier.threadsafeCopy(), fullPath.threadsafeCopy());
95 }
96
removeDatabase(SecurityOrigin * origin,const String & databaseIdentifier)97 void OriginQuotaManager::removeDatabase(SecurityOrigin* origin, const String& databaseIdentifier)
98 {
99 ASSERT(m_usageRecordGuardLocked);
100
101 if (OriginUsageRecord* usageRecord = m_usageMap.get(origin))
102 usageRecord->removeDatabase(databaseIdentifier);
103 }
104
removeOrigin(SecurityOrigin * origin)105 void OriginQuotaManager::removeOrigin(SecurityOrigin* origin)
106 {
107 ASSERT(m_usageRecordGuardLocked);
108
109 if (OriginUsageRecord* usageRecord = m_usageMap.get(origin)) {
110 m_usageMap.remove(origin);
111 delete usageRecord;
112 }
113 }
114
markDatabase(AbstractDatabase * database)115 void OriginQuotaManager::markDatabase(AbstractDatabase* database)
116 {
117 ASSERT(database);
118 ASSERT(m_usageRecordGuardLocked);
119 OriginUsageRecord* usageRecord = m_usageMap.get(database->securityOrigin());
120 ASSERT(usageRecord);
121
122 usageRecord->markDatabase(database->stringIdentifier());
123 }
124
diskUsage(SecurityOrigin * origin) const125 unsigned long long OriginQuotaManager::diskUsage(SecurityOrigin* origin) const
126 {
127 ASSERT(m_usageRecordGuardLocked);
128
129 OriginUsageRecord* usageRecord = m_usageMap.get(origin);
130 ASSERT(usageRecord);
131
132 return usageRecord->diskUsage();
133 }
134
135 }
136
137 #endif // ENABLE(DATABASE)
138