private bool PostgresMessageRead(out IPostgresMessage message)
{
while (true)
{
var foundMessage = PostgresMessage.ReadMessage(
_buffer, ref _bufferOffset, ref _bufferCount,
ref _readState, ref ClientState, out message);
if (foundMessage)
{
// https://www.postgresql.org/docs/10/static/protocol-flow.html#PROTOCOL-ASYNC
// TODO: Handle 'LISTEN'
switch (message)
{
case ErrorResponseMessage errorMessage:
throw new PostgresErrorException(errorMessage);
case NoticeResponseMessage noticeMessage:
NoticeResponse?.Invoke(
this, noticeMessage.PublicCloneNotices());
continue;
case ParameterStatusMessage paramMessage:
ClientState.SetParameter(paramMessage);
continue;
}
}
return(foundMessage);
}
}
private static string Describe(IPostgresMessage message)
{
return($"Message type {message.GetType()} not expected at this time.");
}
internal PostgresInvalidMessageException(
IPostgresMessage message, string description)
: base($"{Describe(message)} {description}")
{
}
internal PostgresInvalidMessageException(IPostgresMessage message)
: base(Describe(message))
{
}