Handling ODS Library Errors and Server Messages

The file GATECBS.C defines an error handler called chk_err to handle ODS Library errors and server messages. This example shows how to implement the chk_err function and install it using the srv_errhandle function.

1. Create a prototype of the chk_err callback error handler function:

   int chk_err( 
   SRV_SERVER * server,  // Open Data Services application that got the
                         // error                                     
   SRV_PROC * srvproc,   // Error connection being used               
   int srverror,         // Error number                              
   BYTE severity,        // Severity of the error                     
   BYTE state,           // Error state                               
   int oserrnum,         // Operating-system error number             
   DBHAR * errtext,      // Text of the error message                 
   int errtextlen,       // Length of the error message               
   DBHAR * oserrtext,    // Pointer to the operating-system           
                         // error message                             
   int oserrtextlen);    // Length of the operating-system            
                         // error message                             
   

2. Use srv_errhandle to install the error handler chk_err:

   srv_errhandle (chk_err);
   

3. Use the srv_init function to initialize the gateway server and save the server handle in the SERVER process structure so it can be used later:

   server = srv_init(config, RegistryName, SRV_NULLTERM);