ITEM: AC8413L

Question on ClassSymbol for product class

Question:

ENV:    RISC/6000 model
        AIX version 3.2.5

DESC:   Customer is trying to use the odm_ subroutines to query/
        manipulate the 'product' class.
                Customer has looked in InfoExplorer and it shows the first 
        argument should be a ClassSymbol with a type of Class.  The
        customer has found that when working with the 'product' class 
        this routine is not working correctly.

        When using odm_close_class(product_CLASS) customer reports he   
        gets an ODM error of 5902.  

        Customer would like to know what is the class identifier for the
        product_CLASS.

Action: According to /usr/include/odmi.h, a 5902 is a ODMI_MAGICNO_ERR 
        which indicates the class symbol does not identify a valid object
        class. 

        The product_CLASS class symbol is not predefined for you like
        CuAt_CLASS, CuDv_CLASS, and the others found in 
        /usr/include/sys/cfgodm.h.  You must define the Class Symbol
        yourself.

        Here is a very small sample program that defines & initializes
        the product_CLASS class symbol and prints out the structure for 
        the product class, including the elements and types for all 
        elements.  Please note that custom coding assistance is 
        considered a Consult Line activity and this code should be used 
        as an example only.  IBM does not provide technical support for 
        this code.

\#include\
\#include\
\#include\
main(int argc, char **argv)
{FILE *odmfile = fopen("./odmfile", "w");
struct Class *product_CLASS, *prod;
char odmtype[20];
int rc=0, i;

odm_initialize();

product_CLASS = odm_mount_class("product");
if ((int) product_CLASS == -1 || product_CLASS == NULL)
{  printf("odmerrno = %d\\n", odmerrno);
  perror("getpdata: odm_mount_class"), exit(-1);
}
printf("Class name = %s\\n", product_CLASS->classname);
printf("Structure size = %d\\n", product_CLASS->structsize);
printf("Number of elements = %d\\n", product_CLASS->nelem);
for (i=0; i\nelem; i++)
{  switch ((product_CLASS->elem)[i].type)
  {
    case ODM_CHAR:
      strcpy(odmtype,"ODM_CHAR");
      break;
    case ODM_LONGCHAR:
      strcpy(odmtype,"ODM_LONGCHAR");
      break;
    case ODM_BINARY:
      strcpy(odmtype,"ODM_BINARY");
      break;
    case ODM_SHORT:
      strcpy(odmtype,"ODM_SHORT");
      break;
    case ODM_LONG:
      strcpy(odmtype,"ODM_LONG");
      break;
    case ODM_LINK:
      strcpy(odmtype,"ODM_LINK");
      break;
    case ODM_METHOD:
      strcpy(odmtype,"ODM_METHOD");
      break;
    case ODM_VCHAR:
      strcpy(odmtype,"ODM_VCHAR");
      break;
    case ODM_DOUBLE:
      strcpy(odmtype,"ODM_DOUBLE");
      break;
  }
  printf("Element[%d]:\\t%s\\t%s\\n", i, odmtype, 
    (product_CLASS->elem)[i].elemname);
}
odm_terminate();
}
To compile: cc -o getpdata getpdata.c -lodm

To run: getpdata

Output:

Class name = product
Structure size = 236
Number of elements = 15
Element[0]:     ODM_CHAR        lpp_name
Element[1]:     ODM_CHAR        comp_id
Element[2]:     ODM_SHORT       cp_flag
Element[3]:     ODM_CHAR        fesn
Element[4]:     ODM_VCHAR       name
Element[5]:     ODM_SHORT       state
Element[6]:     ODM_SHORT       ver
Element[7]:     ODM_SHORT       rel
Element[8]:     ODM_SHORT       mod
Element[9]:     ODM_SHORT       fix
Element[10]:    ODM_CHAR        ptf
Element[11]:    ODM_SHORT       media
Element[12]:    ODM_CHAR        sceded_by
Element[13]:    ODM_VCHAR       fixinfo
Element[14]:    ODM_VCHAR       prereq



Support Line: Question on ClassSymbol for product class ITEM: AC8413L

Dated: November 1994 Category: N/A

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