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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 #include "content/common/indexed_db/proxy_webidbcursor_impl.h" | 5 #include "content/common/indexed_db/proxy_webidbcursor_impl.h" |
6 | 6 |
7 #include <vector> | 7 #include <vector> |
8 | 8 |
9 #include "content/common/child_thread.h" | 9 #include "content/common/child_thread.h" |
10 #include "content/common/indexed_db/indexed_db_messages.h" | 10 #include "content/common/indexed_db/indexed_db_messages.h" |
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30 // object since inside WebKit, they hold a reference to the object wich owns | 30 // object since inside WebKit, they hold a reference to the object wich owns |
31 // this object. But, if that ever changed, then we'd need to invalidate | 31 // this object. But, if that ever changed, then we'd need to invalidate |
32 // any such pointers. | 32 // any such pointers. |
33 IndexedDBDispatcher::Send(new IndexedDBHostMsg_CursorDestroyed( | 33 IndexedDBDispatcher::Send(new IndexedDBHostMsg_CursorDestroyed( |
34 idb_cursor_id_)); | 34 idb_cursor_id_)); |
35 IndexedDBDispatcher* dispatcher = | 35 IndexedDBDispatcher* dispatcher = |
36 IndexedDBDispatcher::ThreadSpecificInstance(); | 36 IndexedDBDispatcher::ThreadSpecificInstance(); |
37 dispatcher->CursorDestroyed(idb_cursor_id_); | 37 dispatcher->CursorDestroyed(idb_cursor_id_); |
38 } | 38 } |
39 | 39 |
| 40 // TODO(jsbell): Remove the following method after WK92278 rolls. |
40 WebIDBKey RendererWebIDBCursorImpl::key() const { | 41 WebIDBKey RendererWebIDBCursorImpl::key() const { |
41 return key_; | 42 return key_; |
42 } | 43 } |
43 | 44 |
| 45 // TODO(jsbell): Remove the following method after WK92278 rolls. |
44 WebIDBKey RendererWebIDBCursorImpl::primaryKey() const { | 46 WebIDBKey RendererWebIDBCursorImpl::primaryKey() const { |
45 return primary_key_; | 47 return primary_key_; |
46 } | 48 } |
47 | 49 |
| 50 // TODO(jsbell): Remove the following method after WK92278 rolls. |
48 WebSerializedScriptValue RendererWebIDBCursorImpl::value() const { | 51 WebSerializedScriptValue RendererWebIDBCursorImpl::value() const { |
49 return value_; | 52 return value_; |
50 } | 53 } |
51 | 54 |
52 void RendererWebIDBCursorImpl::advance(unsigned long count, | 55 void RendererWebIDBCursorImpl::advance(unsigned long count, |
53 WebIDBCallbacks* callbacks_ptr, | 56 WebIDBCallbacks* callbacks_ptr, |
54 WebExceptionCode& ec) { | 57 WebExceptionCode& ec) { |
55 IndexedDBDispatcher* dispatcher = | 58 IndexedDBDispatcher* dispatcher = |
56 IndexedDBDispatcher::ThreadSpecificInstance(); | 59 IndexedDBDispatcher::ThreadSpecificInstance(); |
57 scoped_ptr<WebIDBCallbacks> callbacks(callbacks_ptr); | 60 scoped_ptr<WebIDBCallbacks> callbacks(callbacks_ptr); |
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113 // If the onsuccess callback called continue() on the cursor again, | 116 // If the onsuccess callback called continue() on the cursor again, |
114 // and that continue was served by the prefetch cache, then | 117 // and that continue was served by the prefetch cache, then |
115 // pending_onsuccess_callbacks_ would be incremented. | 118 // pending_onsuccess_callbacks_ would be incremented. |
116 // If not, it means the callback did something else, or nothing at all, | 119 // If not, it means the callback did something else, or nothing at all, |
117 // in which case we need to reset the cache. | 120 // in which case we need to reset the cache. |
118 | 121 |
119 if (pending_onsuccess_callbacks_ == 0) | 122 if (pending_onsuccess_callbacks_ == 0) |
120 ResetPrefetchCache(); | 123 ResetPrefetchCache(); |
121 } | 124 } |
122 | 125 |
| 126 // TODO(jsbell): Remove the following method after WK92278 rolls. |
123 void RendererWebIDBCursorImpl::SetKeyAndValue( | 127 void RendererWebIDBCursorImpl::SetKeyAndValue( |
124 const IndexedDBKey& key, | 128 const IndexedDBKey& key, |
125 const IndexedDBKey& primary_key, | 129 const IndexedDBKey& primary_key, |
126 const SerializedScriptValue& value) { | 130 const SerializedScriptValue& value) { |
127 key_ = key; | 131 key_ = key; |
128 primary_key_ = primary_key; | 132 primary_key_ = primary_key; |
129 value_ = value; | 133 value_ = value; |
130 } | 134 } |
131 | 135 |
132 void RendererWebIDBCursorImpl::SetPrefetchData( | 136 void RendererWebIDBCursorImpl::SetPrefetchData( |
133 const std::vector<IndexedDBKey>& keys, | 137 const std::vector<IndexedDBKey>& keys, |
134 const std::vector<IndexedDBKey>& primary_keys, | 138 const std::vector<IndexedDBKey>& primary_keys, |
135 const std::vector<SerializedScriptValue>& values) { | 139 const std::vector<SerializedScriptValue>& values) { |
136 prefetch_keys_.assign(keys.begin(), keys.end()); | 140 prefetch_keys_.assign(keys.begin(), keys.end()); |
137 prefetch_primary_keys_.assign(primary_keys.begin(), primary_keys.end()); | 141 prefetch_primary_keys_.assign(primary_keys.begin(), primary_keys.end()); |
138 prefetch_values_.assign(values.begin(), values.end()); | 142 prefetch_values_.assign(values.begin(), values.end()); |
139 | 143 |
140 used_prefetches_ = 0; | 144 used_prefetches_ = 0; |
141 pending_onsuccess_callbacks_ = 0; | 145 pending_onsuccess_callbacks_ = 0; |
142 } | 146 } |
143 | 147 |
144 void RendererWebIDBCursorImpl::CachedContinue( | 148 void RendererWebIDBCursorImpl::CachedContinue( |
145 WebKit::WebIDBCallbacks* callbacks) { | 149 WebKit::WebIDBCallbacks* callbacks) { |
146 DCHECK_GT(prefetch_keys_.size(), 0ul); | 150 DCHECK_GT(prefetch_keys_.size(), 0ul); |
147 DCHECK(prefetch_primary_keys_.size() == prefetch_keys_.size()); | 151 DCHECK(prefetch_primary_keys_.size() == prefetch_keys_.size()); |
148 DCHECK(prefetch_values_.size() == prefetch_keys_.size()); | 152 DCHECK(prefetch_values_.size() == prefetch_keys_.size()); |
149 | 153 |
| 154 // TODO(jsbell): Turn these three variables into locals after WK92278 rolls. |
150 key_ = prefetch_keys_.front(); | 155 key_ = prefetch_keys_.front(); |
151 primary_key_ = prefetch_primary_keys_.front(); | 156 primary_key_ = prefetch_primary_keys_.front(); |
152 value_ = prefetch_values_.front(); | 157 value_ = prefetch_values_.front(); |
153 | 158 |
154 prefetch_keys_.pop_front(); | 159 prefetch_keys_.pop_front(); |
155 prefetch_primary_keys_.pop_front(); | 160 prefetch_primary_keys_.pop_front(); |
156 prefetch_values_.pop_front(); | 161 prefetch_values_.pop_front(); |
157 used_prefetches_++; | 162 used_prefetches_++; |
158 | 163 |
159 pending_onsuccess_callbacks_++; | 164 pending_onsuccess_callbacks_++; |
| 165 |
| 166 // TODO(jsbell): Remove the ...WithContinuation call after WK92278 rolls. |
160 callbacks->onSuccessWithContinuation(); | 167 callbacks->onSuccessWithContinuation(); |
| 168 callbacks->onSuccess(key_, primary_key_, value_); |
161 } | 169 } |
162 | 170 |
163 void RendererWebIDBCursorImpl::ResetPrefetchCache() { | 171 void RendererWebIDBCursorImpl::ResetPrefetchCache() { |
164 continue_count_ = 0; | 172 continue_count_ = 0; |
165 prefetch_amount_ = kMinPrefetchAmount; | 173 prefetch_amount_ = kMinPrefetchAmount; |
166 | 174 |
167 if (!prefetch_keys_.size()) { | 175 if (!prefetch_keys_.size()) { |
168 // No prefetch cache, so no need to reset the cursor in the back-end. | 176 // No prefetch cache, so no need to reset the cursor in the back-end. |
169 return; | 177 return; |
170 } | 178 } |
171 | 179 |
172 IndexedDBDispatcher* dispatcher = | 180 IndexedDBDispatcher* dispatcher = |
173 IndexedDBDispatcher::ThreadSpecificInstance(); | 181 IndexedDBDispatcher::ThreadSpecificInstance(); |
174 dispatcher->RequestIDBCursorPrefetchReset(used_prefetches_, | 182 dispatcher->RequestIDBCursorPrefetchReset(used_prefetches_, |
175 prefetch_keys_.size(), | 183 prefetch_keys_.size(), |
176 idb_cursor_id_); | 184 idb_cursor_id_); |
177 prefetch_keys_.clear(); | 185 prefetch_keys_.clear(); |
178 prefetch_primary_keys_.clear(); | 186 prefetch_primary_keys_.clear(); |
179 prefetch_values_.clear(); | 187 prefetch_values_.clear(); |
180 | 188 |
181 pending_onsuccess_callbacks_ = 0; | 189 pending_onsuccess_callbacks_ = 0; |
182 } | 190 } |
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