public static PayloadData Create(uint statementId, IList <StatementParameter> parameters) { var writer = new PayloadWriter(); writer.WriteByte((byte)CommandKind.ExecuteStatement); writer.WriteUInt32(statementId); writer.WriteByte(0); // flags == CURSOR_TYPE_NO_CURSOR writer.WriteUInt32(1); // iteration count is always 1 if (parameters.Count > 0) { int parametersProcessed = 0; while (parametersProcessed < parameters.Count) { byte nullBitmap = 0; for (int i = 0; i < Math.Min(8, parameters.Count - parametersProcessed); i++) { if (parameters[parametersProcessed + i].IsNull) { nullBitmap |= (byte)(1 << i); } } writer.WriteByte(nullBitmap); parametersProcessed += 8; } writer.WriteByte((byte)(parameters.Count == 0 ? 0 : 1)); // new parameters bound foreach (var parameter in parameters) { writer.WriteByte((byte)parameter.Type); writer.WriteByte((byte)(parameter.IsUnsigned ? 0x80 : 0)); } foreach (var parameter in parameters) { writer.Write(parameter.Data); } } return(new PayloadData(new ArraySegment <byte>(writer.ToBytes()))); }
private static PayloadWriter CreateCapabilitiesPayload(ProtocolCapabilities serverCapabilities, ConnectionSettings cs, ProtocolCapabilities additionalCapabilities = 0) { var writer = new PayloadWriter(); writer.WriteInt32((int)( ProtocolCapabilities.Protocol41 | ProtocolCapabilities.LongPassword | ProtocolCapabilities.SecureConnection | (serverCapabilities & ProtocolCapabilities.PluginAuth) | (serverCapabilities & ProtocolCapabilities.PluginAuthLengthEncodedClientData) | ProtocolCapabilities.MultiStatements | ProtocolCapabilities.MultiResults | ProtocolCapabilities.PreparedStatementMultiResults | (string.IsNullOrWhiteSpace(cs.Database) ? 0 : ProtocolCapabilities.ConnectWithDatabase) | (cs.UseAffectedRows ? 0 : ProtocolCapabilities.FoundRows) | (cs.UseCompression ? ProtocolCapabilities.Compress : ProtocolCapabilities.None) | additionalCapabilities)); writer.WriteInt32(0x40000000); writer.WriteByte((byte)CharacterSet.Utf8Mb4Binary); writer.Write(new byte[23]); return(writer); }