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scalar(3)                                         net-snmp                                         scalar(3)



NAME
       scalar - Process scalars easily.



   Functions
       netsnmp_mib_handler * netsnmp_get_scalar_handler (void)
           Creates a scalar handler calling netsnmp_create_handler with a handler name defaulted to 'scalar'
           and access method, netsnmp_scalar_helper_handler.
       int netsnmp_register_scalar (netsnmp_handler_registration *reginfo)
           This function registers a scalar helper handler.
       int netsnmp_register_read_only_scalar (netsnmp_handler_registration *reginfo)
           This function registers a read only scalar helper handler.
       int netsnmp_scalar_helper_handler (netsnmp_mib_handler *handler, netsnmp_handler_registration
           *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests)

Detailed Description
       Process scalars easily.


Function Documentation
   netsnmp_mib_handler* netsnmp_get_scalar_handler (void)
       Creates a scalar handler calling netsnmp_create_handler with a handler name defaulted to 'scalar' and
       access method, netsnmp_scalar_helper_handler.

       Returns:
           Returns a pointer to a netsnmp_mib_handler struct which contains the handler's name and the
           access method

       See also:
           netsnmp_get_scalar_handler

           netsnmp_register_scalar



       Definition at line 46 of file scalar.c.

       References netsnmp_create_handler(), and netsnmp_scalar_helper_handler().

       Referenced by netsnmp_register_read_only_scalar(), netsnmp_register_scalar(), and
       netsnmp_register_scalar_group().

   int netsnmp_register_read_only_scalar (netsnmp_handler_registration * reginfo)
       This function registers a read only scalar helper handler.

       This function is very similar to netsnmp_register_scalar the only addition is that the 'read_only'
       handler is injected into the handler chain prior to injecting the serialize handler and registering
       reginfo.

       Parameters:
           reginfo a handler registration structure which could get created using
           netsnmp_create_handler_registration. Used to register a read only scalar helper handler.

       Returns:
           MIB_REGISTERED_OK is returned if the registration was a success. Failures are
           MIB_REGISTRATION_FAILURE and MIB_DUPLICATE_REGISTRATION.

       See also:
           netsnmp_register_scalar

           netsnmp_get_scalar_handler



       Definition at line 109 of file scalar.c.

       References netsnmp_get_instance_handler(), netsnmp_get_read_only_handler(),
       netsnmp_get_scalar_handler(), netsnmp_inject_handler(), netsnmp_register_serialize(),
       netsnmp_handler_registration_s::rootoid, and netsnmp_handler_registration_s::rootoid_len.

   int netsnmp_register_scalar (netsnmp_handler_registration * reginfo)
       This function registers a scalar helper handler.

       The registered OID, reginfo->rootoid, space is extended for the instance subid using realloc() but
       the reginfo->rootoid_len length is not extended just yet. .This function subsequently injects the
       instance, scalar, and serialize helper handlers before actually registering reginfo.

       Each handler is injected/pushed to the top of the handler chain list and will be processed last in
       first out, LIFO.

       Parameters:
           reginfo a handler registration structure which could get created using
           netsnmp_create_handler_registration. Used to register a scalar helper handler.

       Returns:
           MIB_REGISTERED_OK is returned if the registration was a success. Failures are
           MIB_REGISTRATION_FAILURE and MIB_DUPLICATE_REGISTRATION.

       See also:
           netsnmp_register_read_only_scalar

           netsnmp_get_scalar_handler



       Definition at line 74 of file scalar.c.

       References netsnmp_get_instance_handler(), netsnmp_get_scalar_handler(), netsnmp_inject_handler(),
       netsnmp_register_serialize(), netsnmp_handler_registration_s::rootoid, and
       netsnmp_handler_registration_s::rootoid_len.

       Referenced by netsnmp_register_watched_scalar(), and netsnmp_watched_timestamp_register().



Version 5.4.2                                    5 Sep 2008                                        scalar(3)