1 files changed, 104 insertions, 0 deletions
diff --git a/Source/WebCore/storage/OriginUsageRecord.cpp b/Source/WebCore/storage/OriginUsageRecord.cpp
new file mode 100644
index 0000000..eac08fd
--- /dev/null
+++ b/Source/WebCore/storage/OriginUsageRecord.cpp
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "config.h"
+#include "OriginUsageRecord.h"
+
+#if ENABLE(DATABASE)
+
+#include "SQLiteFileSystem.h"
+
+namespace WebCore {
+
+OriginUsageRecord::OriginUsageRecord()
+    : m_cachedDiskUsageIsValid(false)
+{
+}
+
+void OriginUsageRecord::addDatabase(const String& identifier, const String& fullPath)
+{
+    ASSERT(!m_databaseMap.contains(identifier));
+    ASSERT_ARG(identifier, identifier.impl()->hasOneRef() || identifier.isEmpty());
+    ASSERT_ARG(fullPath, fullPath.impl()->hasOneRef() || fullPath.isEmpty());
+
+    m_databaseMap.set(identifier, DatabaseEntry(fullPath));
+    m_unknownSet.add(identifier);
+
+    m_cachedDiskUsageIsValid = false;
+}
+
+void OriginUsageRecord::removeDatabase(const String& identifier)
+{
+    ASSERT(m_databaseMap.contains(identifier));
+
+    m_databaseMap.remove(identifier);
+    m_unknownSet.remove(identifier);
+    m_cachedDiskUsageIsValid = false;
+}
+
+void OriginUsageRecord::markDatabase(const String& identifier)
+{
+    ASSERT(m_databaseMap.contains(identifier));
+    ASSERT_ARG(identifier, identifier.impl()->hasOneRef() || identifier.isEmpty());
+
+    m_unknownSet.add(identifier);
+    m_cachedDiskUsageIsValid = false;
+}
+
+unsigned long long OriginUsageRecord::diskUsage()
+{
+    // Use the last cached usage value if we have it.
+    if (m_cachedDiskUsageIsValid)
+        return m_cachedDiskUsage;
+
+    // stat() for the sizes known to be dirty.
+    HashSet<String>::iterator iUnknown = m_unknownSet.begin();
+    HashSet<String>::iterator endUnknown = m_unknownSet.end();
+    for (; iUnknown != endUnknown; ++iUnknown) {
+        const String& path = m_databaseMap.get(*iUnknown).filename;
+        ASSERT(!path.isEmpty());
+
+        // When we can't determine the file size, we'll just have to assume the file is missing/inaccessible.
+        long long size = SQLiteFileSystem::getDatabaseFileSize(path);
+        m_databaseMap.set(*iUnknown, DatabaseEntry(path, size));
+    }
+    m_unknownSet.clear();
+
+    // Recalculate the cached usage value.
+    m_cachedDiskUsage = 0;
+    HashMap<String, DatabaseEntry>::iterator iDatabase = m_databaseMap.begin();
+    HashMap<String, DatabaseEntry>::iterator endDatabase = m_databaseMap.end();
+    for (; iDatabase != endDatabase; ++iDatabase)
+        m_cachedDiskUsage += iDatabase->second.size;
+
+    m_cachedDiskUsageIsValid = true;
+    return m_cachedDiskUsage;
+}
+
+}
+
+#endif