blob: 906d7068018274cabb588e7da19f56cce3201602 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_INDEXED_DB_DISPATCHER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_INDEXED_DB_DISPATCHER_H_
#include <stdint.h>
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "third_party/blink/public/common/indexeddb/web_idb_types.h"
#include "third_party/blink/public/platform/modules/indexeddb/web_idb_callbacks.h"
#include "third_party/blink/renderer/modules/indexeddb/indexed_db_callbacks_impl.h"
#include "third_party/blink/renderer/modules/indexeddb/indexed_db_database_callbacks_impl.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/wtf/hash_set.h"
#include "third_party/blink/renderer/platform/wtf/thread_specific.h"
namespace blink {
class WebIDBCursorImpl;
// Handle the indexed db related communication for this context thread - the
// main thread and each worker thread have their own copies.
class MODULES_EXPORT IndexedDBDispatcher {
public:
static void RegisterCursor(WebIDBCursorImpl* cursor);
static void UnregisterCursor(WebIDBCursorImpl* cursor);
// Reset cursor prefetch caches for all cursors except |except_cursor|.
// In most callers, |except_cursor| is passed as nullptr, causing all cursors
// to have their prefetch cache to be reset. In 2 WebIDBCursorImpl callers,
// specifically from |Advance| and |CursorContinue|, these want to reset all
// cursor prefetch caches except the cursor the calls are running from. They
// get that behavior by passing |this| to |ResetCursorPrefetchCaches| which
// skips calling |ResetPrefetchCache| on them.
static void ResetCursorPrefetchCaches(int64_t transaction_id,
WebIDBCursorImpl* except_cursor);
private:
friend class WTF::ThreadSpecific<IndexedDBDispatcher>;
static IndexedDBDispatcher* GetInstanceForCurrentThread();
IndexedDBDispatcher();
FRIEND_TEST_ALL_PREFIXES(IndexedDBDispatcherTest, CursorReset);
FRIEND_TEST_ALL_PREFIXES(IndexedDBDispatcherTest, CursorTransactionId);
WTF::HashSet<WebIDBCursorImpl*> cursors_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_INDEXED_DB_DISPATCHER_H_
|
