RE: how to confirm the context has been initialized .

[Stephane Faroult]

>----- ------- Original Message ------- -----
>From: "liujd" <[EMAIL PROTECTED]>
>To: Multiple recipients of list ORACLE-L
><[EMAIL PROTECTED]>
>Sent: Tue, 25 Mar 2003 22:53:44
>
>i write two function .
>one is login function as login(char * password,int
>contextId).this
>function initialize the context environment .and
>login database.
>two is getGroupInfo(char * groupName,int
>contextId); this function is as
>his name to get one group information.And refer to
>ctx[contextId] in the
>login function initial
>the sql_context variable is declared in the *.h as
>following
>EXEC SQL  BEGIN DECLARE SECTION;
>        sql_context ctx[20];
>EXEC SQL  END  DECLARE SECTION;
>Now ,my question is in the function two(
>getGroupInfo() ) ,how to judge
>the ctx[contextId] has been initialized before used
>it?
>
>thanks in advance!
>

static char global_init = 0;
             /* Initialized at compile-time */

login(..)
{
 /* do stuff */
 global_init = 1;
}

getGroupInfo()
{
 if (!global_init)
    {
     fprintf(stderr, "Not logged on, get lost\n");
     exit(1);
    }
 /* Now you're safe */
}

And reset global_init to 0 in the logoff function.

Regards,

Stephane Faroult
Oriole
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Author: Stephane Faroult
  INET: [EMAIL PROTECTED]

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