OkPrepareStmtPacket ParsePrepareResponse()
{
_receiveBuffer = new byte[DEFAULT_BUFFER_SIZE];
var socket = _conn.socket;
int receive = socket.Receive(_receiveBuffer);
if (receive == 0)
{
return(null);
}
//TODO: review err handling here
//---------------------------------------------------
_parser.LoadNewBuffer(_receiveBuffer, receive);
OkPrepareStmtPacket okPreparePacket = new OkPrepareStmtPacket();
switch (_receiveBuffer[4])
{
case ERROR_CODE:
LoadError = new ErrPacket();
LoadError.ParsePacket(_parser);
okPreparePacket = null;
break;
case OK_CODE:
okPreparePacket.ParsePacket(_parser);
break;
}
return(okPreparePacket);
}
public void Prepare()
{
//prepare sql query
_prepareContext = null;
if (_cmdParams == null)
{
return;
}
_writer.Reset();
string realSql = _sqlStrTemplate.BindValues(_cmdParams, true);
ComPrepareStatementPacket preparePacket = new ComPrepareStatementPacket(realSql);
preparePacket.WritePacket(_writer);
SendPacket(_writer.ToArray());
OkPrepareStmtPacket okPreparePacket = new OkPrepareStmtPacket();
okPreparePacket = ParsePrepareResponse();
if (okPreparePacket != null)
{
_prepareContext = new PreparedContext(okPreparePacket.statement_id, _sqlStrTemplate);
if (okPreparePacket.num_params > 0)
{
var tableHeader = new TableHeader();
tableHeader.TypeCast = typeCast;
tableHeader.NestTables = nestTables;
tableHeader.ConnConfig = _conn.config;
for (int i = 0; i < okPreparePacket.num_params; i++)
{
//no meaing for each field?
FieldPacket field = ParseColumn();
tableHeader.AddField(field);
}
//set table after the table is ready!
_prepareContext.Setup(tableHeader);
ParseEOF();
}
if (okPreparePacket.num_columns > 0)
{
_tableHeader = new TableHeader();
_tableHeader.TypeCast = typeCast;
_tableHeader.NestTables = nestTables;
_tableHeader.ConnConfig = _conn.config;
for (int i = 0; i < okPreparePacket.num_columns; i++)
{
FieldPacket field = ParseColumn();
_tableHeader.AddField(field);
}
ParseEOF();
}
}
}
bool Parse_PrepareOk_Content(MySqlStreamReader reader)
{
if (!reader.Ensure(_currentHeader.ContentLength))
{
return(_needMoreData = true);
}
var okPrepare = new OkPrepareStmtPacket(_currentHeader);
okPrepare.ParsePacketContent(reader);
_okPrepare = okPrepare;
//----------------------------------------------------
_tableHeader = new TableHeader(true);
//----------------------------------------------------
//*** 3 possible way after read prepare ok header***
if (okPrepare.num_params == 0)
{
//if prepare stmt dosn't have binding parameters
if (okPrepare.num_columns > 0)
{
//has some column
_parsingState = PrepareResponseParseState.ColumnField_Header;
}
else
{
_finalResult = new MySqlPrepareResponseResult(okPrepare, _tableHeader);
_parsingState = PrepareResponseParseState.ShouldEnd;
reader.Reset();
return(true); //finish
}
}
else
{
_parsingState = PrepareResponseParseState.BindingField_Header;
}
return(false);
}
public MySqlPrepareResponseResult(OkPrepareStmtPacket okPrepare, TableHeader tableHeader)
{
this.okPacket = okPrepare;
this.tableHeader = tableHeader;
}
public MySqlPrepareResponseResult(OkPrepareStmtPacket okPrepare, TableHeader tableHeader)
{
this.okPacket = okPrepare;
this.tableHeader = tableHeader;
}
bool Parse_PrepareOk_Content(MySqlStreamReader reader)
{
if (!reader.Ensure(_currentHeader.ContentLength))
{
return _needMoreData = true;
}
var okPrepare = new OkPrepareStmtPacket(_currentHeader);
okPrepare.ParsePacketContent(reader);
_okPrepare = okPrepare;
//----------------------------------------------------
_tableHeader = new TableHeader(true);
//----------------------------------------------------
//*** 3 possible way after read prepare ok header***
if (okPrepare.num_params == 0)
{
//if prepare stmt dosn't have binding parameters
if (okPrepare.num_columns > 0)
{
//has some column
_parsingState = PrepareResponseParseState.ColumnField_Header;
}
else
{
_finalResult = new MySqlPrepareResponseResult(okPrepare, _tableHeader);
_parsingState = PrepareResponseParseState.ShouldEnd;
reader.Reset();
return true; //finish
}
}
else
{
_parsingState = PrepareResponseParseState.BindingField_Header;
}
return false;
}
