Re: BUG: Protocol 3.0: that's just odd, needing to add the number of bytes the length field occupies
От | Bruce Momjian |
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Тема | Re: BUG: Protocol 3.0: that's just odd, needing to add the number of bytes the length field occupies |
Дата | |
Msg-id | 200804161646.m3GGkiV13746@momjian.us обсуждение исходный текст |
Ответ на | BUG: Protocol 3.0: that's just odd, needing to add the number of bytes the length field occupies (<Eugen.Konkov@aldec.com>) |
Список | pgsql-bugs |
Eugen.Konkov@aldec.com wrote: > server side: writeInt32( length($message)+4 ); writeString( $message ); > client side: $length= readInt32(); readString( $length -4 ) > > that's just odd, needing to add the number of bytes the length field occupies > > This is simpler: > server side: writeInt32( length($message)); writeString( $message ); > client side: $length= readInt32(); readString( $length ) > > Will you plan to correct that in Protocol 3.1? Agreed, no plans to change that. TCP does the same: http://www.ysn.ru/docs/cie/Course/Section4/8.htm +--------+--------+--------+--------+ | Source Address | +--------+--------+--------+--------+ | Destination Address | +--------+--------+--------+--------+ | zero | PTCL | TCP Length | +--------+--------+--------+--------+ The TCP Length is the TCP header length plus the data length in ----------------- octets (this is not an explicitly transmitted quantity, but is computed), and it does not count the 12 octets of the pseudo header. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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