internal MySqlDataReader(MySqlCommand cmd, PreparableStatement statement, CommandBehavior behavior)
{
this.command = cmd;
this.connection = this.command.Connection;
this.commandBehavior = behavior;
this.driver = this.connection.driver;
this.affectedRows = -1L;
this.statement = statement;
this.nextResultDone = false;
this.fieldHashCS = new Hashtable();
this.fieldHashCI = new Hashtable(StringComparer.InvariantCultureIgnoreCase);
}
private void Prepare(int cursorPageSize)
{
if (!this.connection.driver.Version.isAtLeast(5, 0, 0) && (cursorPageSize > 0))
{
throw new InvalidOperationException("Nested commands are only supported on MySQL 5.0 and later");
}
string commandText = this.CommandText;
if ((commandText != null) && (commandText.Trim().Length != 0))
{
if (this.CommandType == System.Data.CommandType.StoredProcedure)
{
this.statement = new StoredProcedure(this, this.CommandText);
}
else
{
this.statement = new PreparableStatement(this, this.CommandText);
}
this.statement.Prepare();
}
}
new public MySqlDataReader ExecuteReader(CommandBehavior behavior)
{
MySqlDataReader reader2;
this.lastInsertedId = -1L;
this.CheckState();
if ((this.cmdText == null) || (this.cmdText.Trim().Length == 0))
{
throw new InvalidOperationException(Resources.CommandTextNotInitialized);
}
string text = TrimSemicolons(this.cmdText);
this.connection.IsExecutingBuggyQuery = false;
if (!this.connection.driver.Version.isAtLeast(5, 0, 0) && this.connection.driver.Version.isAtLeast(4, 1, 0))
{
string str2 = text;
if (str2.Length > 0x11)
{
str2 = text.Substring(0, 0x11);
}
str2 = str2.ToLower(CultureInfo.InvariantCulture);
this.connection.IsExecutingBuggyQuery = str2.StartsWith("describe") || str2.StartsWith("show table status");
}
if ((this.statement == null) || !this.statement.IsPrepared)
{
if (this.CommandType == System.Data.CommandType.StoredProcedure)
{
this.statement = new StoredProcedure(this, text);
}
else
{
this.statement = new PreparableStatement(this, text);
}
}
this.statement.Resolve();
this.HandleCommandBehaviors(behavior);
this.updatedRowCount = -1L;
Timer timer = null;
try {
MySqlDataReader reader = new MySqlDataReader(this, this.statement, behavior);
this.timedOut = false;
this.statement.Execute();
if (this.connection.driver.Version.isAtLeast(5, 0, 0) && (this.commandTimeout > 0))
{
TimerCallback callback = new TimerCallback(this.TimeoutExpired);
timer = new Timer(callback, this, this.CommandTimeout * 0x3e8, -1);
}
reader.NextResult();
this.connection.Reader = reader;
reader2 = reader;
} catch (MySqlException exception) {
if (exception.Number == 0x525)
{
if (this.TimedOut)
{
throw new MySqlException(Resources.Timeout);
}
return(null);
}
if (exception.IsFatal)
{
this.Connection.Close();
}
if (exception.Number == 0)
{
throw new MySqlException(Resources.FatalErrorDuringExecute, exception);
}
throw;
} finally {
if (timer != null)
{
timer.Dispose();
}
}
return(reader2);
}
