Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 88 insertions, 0 deletions

diff --git a/chrome/browser/history/archived_database.h b/chrome/browser/history/archived_database.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CHROME_BROWSER_HISTORY_ARCHIVED_DATABASE_H__
+#define CHROME_BROWSER_HISTORY_ARCHIVED_DATABASE_H__
+
+#include "base/basictypes.h"
+#include "chrome/browser/history/download_database.h"
+#include "chrome/browser/history/url_database.h"
+#include "chrome/browser/history/visit_database.h"
+#include "chrome/browser/meta_table_helper.h"
+
+struct sqlite3;
+
+namespace history {
+
+// Encapsulates the database operations for archived history.
+//
+// IMPORTANT NOTE: The IDs in this system for URLs and visits will be
+// different than those in the main database. This is to eliminate the
+// dependency between them so we can deal with each one on its own.
+class ArchivedDatabase : public URLDatabase,
+                         public VisitDatabase {
+ public:
+  // Must call Init() before using other members.
+  ArchivedDatabase();
+  virtual ~ArchivedDatabase();
+
+  // Initializes the database connection. This must return true before any other
+  // functions on this class are called.
+  bool Init(const std::wstring& file_name);
+
+  // Transactions on the database. We support nested transactions and only
+  // commit when the outermost one is committed (sqlite doesn't support true
+  // nested transactions).
+  void BeginTransaction();
+  void CommitTransaction();
+
+ private:
+  // Implemented for the specialized databases.
+  virtual sqlite3* GetDB();
+  virtual SqliteStatementCache& GetStatementCache();
+
+  // The database.
+  //
+  // The close scoper will free the database and delete the statement cache in
+  // the correct order automatically when we are destroyed.
+  DBCloseScoper db_closer_;
+  sqlite3* db_;
+  SqliteStatementCache* statement_cache_;
+
+  // The number of nested transactions currently in progress.
+  int transaction_nesting_;
+
+  MetaTableHelper meta_table_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(ArchivedDatabase);
+};
+
+}  // namespace history
+
+#endif  // CHROME_BROWSER_HISTORY_ARCHIVED_DATABASE_H__