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 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "StorageSyncManager.h"
28
29#if ENABLE(DOM_STORAGE)
30
31#include "EventNames.h"
32#include "FileSystem.h"
33#include "Frame.h"
34#include "FrameTree.h"
35#include "LocalStorageTask.h"
36#include "LocalStorageThread.h"
37#include "Page.h"
38#include "PageGroup.h"
39#include "StorageAreaSync.h"
40#include <wtf/text/CString.h>
41#include <wtf/StdLibExtras.h>
42
43namespace WebCore {
44
45PassRefPtr<StorageSyncManager> StorageSyncManager::create(const String& path)
46{
47    return adoptRef(new StorageSyncManager(path));
48}
49
50StorageSyncManager::StorageSyncManager(const String& path)
51    : m_thread(LocalStorageThread::create())
52    , m_path(path.crossThreadString())
53{
54    ASSERT(isMainThread());
55    ASSERT(!m_path.isEmpty());
56    m_thread->start();
57}
58
59StorageSyncManager::~StorageSyncManager()
60{
61    ASSERT(isMainThread());
62    ASSERT(!m_thread);
63}
64
65// Called on a background thread.
66String StorageSyncManager::fullDatabaseFilename(const String& databaseIdentifier)
67{
68    if (!makeAllDirectories(m_path)) {
69        LOG_ERROR("Unabled to create LocalStorage database path %s", m_path.utf8().data());
70        return String();
71    }
72
73    return pathByAppendingComponent(m_path, databaseIdentifier + ".localstorage");
74}
75
76void StorageSyncManager::close()
77{
78    ASSERT(isMainThread());
79
80    if (m_thread) {
81        m_thread->terminate();
82        m_thread = 0;
83    }
84}
85
86bool StorageSyncManager::scheduleImport(PassRefPtr<StorageAreaSync> area)
87{
88    ASSERT(isMainThread());
89    ASSERT(m_thread);
90    if (m_thread)
91        m_thread->scheduleTask(LocalStorageTask::createImport(area.get()));
92    return m_thread;
93}
94
95void StorageSyncManager::scheduleSync(PassRefPtr<StorageAreaSync> area)
96{
97    ASSERT(isMainThread());
98    ASSERT(m_thread);
99    if (m_thread)
100        m_thread->scheduleTask(LocalStorageTask::createSync(area.get()));
101}
102
103void StorageSyncManager::scheduleDeleteEmptyDatabase(PassRefPtr<StorageAreaSync> area)
104{
105    ASSERT(isMainThread());
106    ASSERT(m_thread);
107    if (m_thread)
108        m_thread->scheduleTask(LocalStorageTask::createDeleteEmptyDatabase(area.get()));
109}
110} // namespace WebCore
111
112#endif // ENABLE(DOM_STORAGE)
113