Re: REVIEW: Determining client_encoding from client locale - Mailing list pgsql-hackers

Hi!,

      

I have reviewed/tested this patch.

OS = "Linux ubuntu 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:34:50 UTC 2010 i686 GNU/Linux"

PostgreSQL Version = Head (9.1devel)

 
Patch gives the desired results(still testing), but couple of questions with this portion of the code.  

       if (conn->client_encoding_initial && conn->client_encoding_initial[0])
       {
               if (packet)
                       strcpy(packet + packet_len, "client_encoding");
               packet_len += strlen("client_encoding") + 1;
               if (packet)
                       strcpy(packet + packet_len, conn->client_encoding_initial);
               packet_len += strlen(conn->client_encoding_initial) + 1;
       }

Is there any reason to check "packet" twice?. 

And suppose "packet" is null then we will not append "client_encoding" into the string but will increase the length(looks intentional! like in ADD_STARTUP_OPTION).

In my point code should be like this
       

     if (conn->client_encoding_initial && conn->client_encoding_initial[0])
       {
               if (packet)
               {
                       strcpy(packet + packet_len, "client_encoding");
                       packet_len += strlen("client_encoding") + 1;
                       strcpy(packet + packet_len, conn->client_encoding_initial);
                       packet_len += strlen(conn->client_encoding_initial) + 1;
              }
        }

BTW why you have not used "ADD_STARTUP_OPTION"?

I will test this patch on Windows and will send results.

-- 
Ibrar Ahmed

On Sun, Jan 30, 2011 at 10:56 AM, Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> wrote:

On 29.01.2011 19:23, Peter Eisentraut wrote:

>  Also, do we really need a new set of states for this..?  I would have
>  thought, just reading through the patch, that we could use the existing
>  OPTION_SEND/OPTION_WAIT states..

Don't know.  Maybe Heikki could comment; he wrote that initially.

The other options send by the OPTION_SEND/WAIT machinery come from environment variables, there's a getenv() call where the SETENV_STATE_OPTION_SEND state is handled. It would be a bit awkward to shoehorn client_encoding into that.

--
 Heikki Linnakangas
 EnterpriseDB   http://www.enterprisedb.com

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--
   Ibrar Ahmed