| // 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 CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CONNECTION_H_ |
| #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CONNECTION_H_ |
| |
| #include <memory> |
| #include <set> |
| #include <vector> |
| |
| #include "base/containers/flat_map.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "content/browser/indexed_db/indexed_db_database.h" |
| #include "content/browser/indexed_db/indexed_db_origin_state_handle.h" |
| #include "third_party/blink/public/mojom/indexeddb/indexeddb.mojom.h" |
| |
| namespace content { |
| class IndexedDBDatabaseCallbacks; |
| class IndexedDBDatabaseError; |
| class IndexedDBObserver; |
| class IndexedDBTransaction; |
| class IndexedDBOriginStateHandle; |
| |
| class CONTENT_EXPORT IndexedDBConnection { |
| public: |
| IndexedDBConnection(int child_process_id, |
| IndexedDBOriginStateHandle origin_state_handle, |
| IndexedDBClassFactory* indexed_db_class_factory, |
| base::WeakPtr<IndexedDBDatabase> database, |
| base::RepeatingClosure on_version_change_ignored, |
| base::OnceCallback<void(IndexedDBConnection*)> on_close, |
| scoped_refptr<IndexedDBDatabaseCallbacks> callbacks); |
| virtual ~IndexedDBConnection(); |
| |
| void AbortTransactionsAndClose(); |
| void CloseAndReportForceClose(); |
| bool IsConnected(); |
| |
| void VersionChangeIgnored(); |
| |
| virtual void ActivatePendingObservers( |
| std::vector<std::unique_ptr<IndexedDBObserver>> pending_observers); |
| // Removes observer listed in |remove_observer_ids| from active_observer of |
| // connection or pending_observer of transactions associated with this |
| // connection. |
| virtual void RemoveObservers(const std::vector<int32_t>& remove_observer_ids); |
| |
| int32_t id() const { return id_; } |
| int child_process_id() const { return child_process_id_; } |
| |
| base::WeakPtr<IndexedDBDatabase> database() const { return database_; } |
| IndexedDBDatabaseCallbacks* callbacks() const { return callbacks_.get(); } |
| const std::vector<std::unique_ptr<IndexedDBObserver>>& active_observers() |
| const { |
| return active_observers_; |
| } |
| base::WeakPtr<IndexedDBConnection> GetWeakPtr() { |
| return weak_factory_.GetWeakPtr(); |
| } |
| |
| // Creates a transaction for this connection. |
| IndexedDBTransaction* CreateTransaction( |
| int64_t id, |
| const std::set<int64_t>& scope, |
| blink::mojom::IDBTransactionMode mode, |
| IndexedDBBackingStore::Transaction* backing_store_transaction); |
| |
| void AbortTransaction(IndexedDBTransaction* transaction, |
| const IndexedDBDatabaseError& error); |
| |
| // Aborts or commits each transaction owned by this connection depending on |
| // the transaction's current state. Any transaction with is_commit_pending_ |
| // false is aborted, and any transaction with is_commit_pending_ true is |
| // committed. |
| void FinishAllTransactions(const IndexedDBDatabaseError& error); |
| |
| IndexedDBTransaction* GetTransaction(int64_t id) const; |
| |
| base::WeakPtr<IndexedDBTransaction> AddTransactionForTesting( |
| std::unique_ptr<IndexedDBTransaction> transaction); |
| |
| // We ignore calls where the id doesn't exist to facilitate the AbortAll call. |
| // TODO(dmurph): Change that so this doesn't need to ignore unknown ids. |
| void RemoveTransaction(int64_t id); |
| |
| const base::flat_map<int64_t, std::unique_ptr<IndexedDBTransaction>>& |
| transactions() const { |
| return transactions_; |
| } |
| |
| private: |
| void ClearStateAfterClose(); |
| |
| const int32_t id_; |
| |
| // The process id of the child process this connection is associated with. |
| // Tracked for IndexedDBContextImpl::GetAllOriginsDetails and debugging. |
| const int child_process_id_; |
| |
| // Keeps the factory for this origin alive. |
| IndexedDBOriginStateHandle origin_state_handle_; |
| IndexedDBClassFactory* const indexed_db_class_factory_; |
| |
| base::WeakPtr<IndexedDBDatabase> database_; |
| base::RepeatingClosure on_version_change_ignored_; |
| base::OnceCallback<void(IndexedDBConnection*)> on_close_; |
| |
| // The connection owns transactions created on this connection. |
| // This is |flat_map| to preserve ordering, and because the vast majority of |
| // users have less than 200 transactions. |
| base::flat_map<int64_t, std::unique_ptr<IndexedDBTransaction>> transactions_; |
| |
| // The callbacks_ member is cleared when the connection is closed. |
| // May be NULL in unit tests. |
| scoped_refptr<IndexedDBDatabaseCallbacks> callbacks_; |
| std::vector<std::unique_ptr<IndexedDBObserver>> active_observers_; |
| |
| SEQUENCE_CHECKER(sequence_checker_); |
| |
| base::WeakPtrFactory<IndexedDBConnection> weak_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(IndexedDBConnection); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CONNECTION_H_ |