content/common/indexed_db/proxy_webidbcursor_impl.h - Issue 9691021: IndexedDB: Fix prefetching; cache was always being bypassed.

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Issue 9691021: IndexedDB: Fix prefetching; cache was always being bypassed. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Added unit tests to verify prefetch cache is used Created 8 years, 9 months ago

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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.	1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 #ifndef CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_	5 #ifndef CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_

6 #define CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_	6 #define CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_

7	7

8 #include <deque>	8 #include <deque>

9	9

10 #include "base/basictypes.h"	10 #include "base/basictypes.h"

11 #include "content/common/indexed_db/indexed_db_key.h"	11 #include "content/common/indexed_db/indexed_db_key.h"

12 #include "content/public/common/serialized_script_value.h"	12 #include "content/public/common/serialized_script_value.h"

13 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCallbacks.h"	13 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCallbacks.h"

14 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCursor.h"	14 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCursor.h"

15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKey.h"	15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKey.h"

16 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSerialize dScriptValue.h"	16 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSerialize dScriptValue.h"

17	17

	18 const int32 kInvalidIDBCursorId = -1;

	19

18 class RendererWebIDBCursorImpl : public WebKit::WebIDBCursor {	20 class RendererWebIDBCursorImpl : public WebKit::WebIDBCursor {

19 public:	21 public:

20 RendererWebIDBCursorImpl(int32 idb_cursor_id);	22 RendererWebIDBCursorImpl(int32 idb_cursor_id);

21 virtual ~RendererWebIDBCursorImpl();	23 virtual ~RendererWebIDBCursorImpl();

22	24

23 virtual unsigned short direction() const;	25 virtual unsigned short direction() const;

24 virtual WebKit::WebIDBKey key() const;	26 virtual WebKit::WebIDBKey key() const;

25 virtual WebKit::WebIDBKey primaryKey() const;	27 virtual WebKit::WebIDBKey primaryKey() const;

26 virtual WebKit::WebSerializedScriptValue value() const;	28 virtual WebKit::WebSerializedScriptValue value() const;

27 virtual void update(const WebKit::WebSerializedScriptValue& value,	29 virtual void update(const WebKit::WebSerializedScriptValue& value,

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66	68

67 // Number of items to request in next prefetch.	69 // Number of items to request in next prefetch.

68 int prefetch_amount_;	70 int prefetch_amount_;

69	71

70 enum { kPrefetchContinueThreshold = 2 };	72 enum { kPrefetchContinueThreshold = 2 };

71 enum { kMinPrefetchAmount = 5 };	73 enum { kMinPrefetchAmount = 5 };

72 enum { kMaxPrefetchAmount = 100 };	74 enum { kMaxPrefetchAmount = 100 };

73 };	75 };

74	76

75 #endif // CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_	77 #endif // CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_

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