internal SQLiteServerTransaction(SQLiteServerConnection connection)
{
if (null == connection)
{
throw new ArgumentNullException(nameof(connection));
}
_connection = connection;
}
public SQLiteServerCommand(string commandText, SQLiteServerConnection connection)
{
_connection = connection;
CommandText = commandText;
// set the connection timeout
var builder = new SQLiteServerConnectionStringBuilder(connection?.ConnectionString);
CommandTimeout = builder.DefaultTimeout;
}
internal SQLiteServerDataReader(ISQLiteServerDataReaderWorker worker,
SQLiteServerConnection connection,
CommandBehavior commandBehavior)
{
if (null == worker)
{
throw new ArgumentNullException(nameof(worker), "The worker cannot be null");
}
_worker = worker;
_connection = connection;
_commandBehavior = commandBehavior;
}
/// <summary>
/// Backup the database
/// </summary>
/// <param name="destination"></param>
/// <param name="destinationName"></param>
/// <param name="sourceName"></param>
/// <param name="pages"></param>
/// <param name="callback"></param>
/// <param name="retryMilliseconds"></param>
public void BackupDatabase(
SQLiteServerConnection destination,
string destinationName,
string sourceName,
int pages,
SQLiteServerBackupCallback callback,
int retryMilliseconds)
{
// check not disposed
ThrowIfAny();
// check destination is valid.
if (destination == null)
{
throw new ArgumentNullException(nameof(destination));
}
if (destination.State != ConnectionState.Open)
{
throw new InvalidOperationException("Destination database is not open.");
}
// validate the names
if (destinationName == null)
{
throw new ArgumentNullException(nameof(destinationName));
}
if (sourceName == null)
{
throw new ArgumentNullException(nameof(sourceName));
}
// convert the callback to sqlite callback
// but only if the caller gave us a callback.
var callback2 = callback == null ?
null
:
new SQLiteBackupCallback(
(source2, sourceName2, destination2, destinationName2, pages2, remainingPages, totalPages, retry)
=> callback(this, sourceName2, destination, destinationName2, pages2, remainingPages, totalPages, retry));
try
{
// get the sqlite connections.
Task.Run(async() =>
{
var sourceConnection = await _worker.LockConnectionAsync().ConfigureAwait(false);
var destinationConnection = await destination._worker.LockConnectionAsync().ConfigureAwait(false);
// Call the SQlite connection.
sourceConnection.BackupDatabase(destinationConnection, destinationName, sourceName, pages, callback2,
retryMilliseconds);
}).Wait();
}
finally
{
Task.Run(async() =>
{
await _worker.UnLockConnectionAsync().ConfigureAwait(false);
await destination._worker.UnLockConnectionAsync().ConfigureAwait(false);
}).Wait();
}
}
public SQLiteServerCommand(SQLiteServerConnection connection) : this(null, connection)
{
}
