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/*
* Copyright (C) 2009 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.
*/
#include "config.h"
#include "SQLiteFileSystem.h"
#include "FileSystem.h"
#include "SQLiteDatabase.h"
#include "SQLiteStatement.h"
#include <sqlite3.h>
namespace WebCore {
SQLiteFileSystem::SQLiteFileSystem()
{
}
void SQLiteFileSystem::registerSQLiteVFS()
{
}
int SQLiteFileSystem::openDatabase(const String& fileName, sqlite3** database, bool)
{
// SQLite expects a null terminator on its UTF-16 strings.
String path = fileName;
return sqlite3_open16(path.charactersWithNullTermination(), database);
}
String SQLiteFileSystem::getFileNameForNewDatabase(const String& dbDir, const String&,
const String&, SQLiteDatabase* db)
{
// try to get the next sequence number from the given database
// if we can't get a number, return an empty string
SQLiteStatement sequenceStatement(*db, "SELECT seq FROM sqlite_sequence WHERE name='Databases';");
if (sequenceStatement.prepare() != SQLResultOk)
return String();
int result = sequenceStatement.step();
int64_t seq = 0;
if (result == SQLResultRow)
seq = sequenceStatement.getColumnInt64(0);
else if (result != SQLResultDone)
return String();
sequenceStatement.finalize();
// increment the number until we can use it to form a file name that doesn't exist
String fileName;
do {
++seq;
fileName = pathByAppendingComponent(dbDir, String::format("%016llx.db", seq));
} while (fileExists(fileName));
return String::format("%016llx.db", seq);
}
String SQLiteFileSystem::appendDatabaseFileNameToPath(const String& path, const String& fileName)
{
return pathByAppendingComponent(path, fileName);
}
bool SQLiteFileSystem::ensureDatabaseDirectoryExists(const String& path)
{
if (path.isEmpty())
return false;
return makeAllDirectories(path);
}
bool SQLiteFileSystem::ensureDatabaseFileExists(const String& fileName, bool checkPathOnly)
{
if (fileName.isEmpty())
return false;
if (checkPathOnly) {
String dir = directoryName(fileName);
return ensureDatabaseDirectoryExists(dir);
}
return fileExists(fileName);
}
bool SQLiteFileSystem::deleteEmptyDatabaseDirectory(const String& path)
{
return deleteEmptyDirectory(path);
}
bool SQLiteFileSystem::deleteDatabaseFile(const String& fileName)
{
return deleteFile(fileName);
}
long long SQLiteFileSystem::getDatabaseFileSize(const String& fileName)
{
long long size;
return getFileSize(fileName, size) ? size : 0;
}
} // namespace WebCore
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