// querySync - do an gsnmp library sync_* query
//
// Results are returned in C form, use convertResults() to convert to a Go struct.
func querySync(session *_Ctype_GNetSnmp, vbl *_Ctype_GList, uritype _Ctype_GNetSnmpUriType,
version SnmpVersion) (*_Ctype_GList, error) {
var gerror *C.GError
var out *_Ctype_GList
if Debug {
applog.Debugf("Starting a %s", uritype)
}
switch UriType(uritype) {
case GNET_SNMP_URI_GET:
out = C.gnet_snmp_sync_get(session, vbl, &gerror)
case GNET_SNMP_URI_NEXT:
out = C.gnet_snmp_sync_getnext(session, vbl, &gerror)
case GNET_SNMP_URI_WALK:
out = C.gnet_snmp_sync_walk(session, vbl, &gerror)
/* TODO gnet_snmp_sync_walk is just a series of 'getnexts'
if version == GNET_SNMP_V1 {
out = C.gnet_snmp_sync_walk(session, vbl, &gerror)
} else {
// do a proper bulkwalk
}
*/
default:
return nil, fmt.Errorf("%s: querySync(): unknown uritype", libname())
}
/*
Originally error handling was done at this point, like
gsnmp-0.3.0/examples/gsnmp-get.c. However in production too many results
were being discarded. Hence just return out, and convertResults() will
convert any errors in out to nil values.
*/
return out, nil
}
// Do an gsnmp library sync_* query
//
// Results are returned in C form, use convertResults() to convert to a Go struct.
func querySync(session *_Ctype_GNetSnmp, vbl *_Ctype_GList,
uritype _Ctype_GNetSnmpUriType) (*_Ctype_GList, error) {
var gerror *C.GError
var out *_Ctype_GList
switch UriType(uritype) {
case GNET_SNMP_URI_GET:
out = C.gnet_snmp_sync_get(session, vbl, &gerror)
case GNET_SNMP_URI_NEXT:
out = C.gnet_snmp_sync_getnext(session, vbl, &gerror)
case GNET_SNMP_URI_WALK:
out = C.gnet_snmp_sync_walk(session, vbl, &gerror)
default:
return nil, fmt.Errorf("%s: querySync(): unknown uritype", libname())
}
// error handling
if gerror != nil {
err_string := C.GoString((*_Ctype_char)(gerror.message))
C.g_clear_error(&gerror)
return out, fmt.Errorf("%s: %s", libname(), err_string)
}
err_status := PduError(session.error_status)
switch UriType(uritype) {
case GNET_SNMP_URI_WALK:
if err_status != GNET_SNMP_PDU_ERR_NOERROR && err_status != GNET_SNMP_PDU_ERR_NOSUCHNAME {
es := C.get_err_label(session.error_status)
err_string := C.GoString((*_Ctype_char)(es))
return out, fmt.Errorf("%s: %s for uri %d", libname(), err_string, session.error_index)
}
default:
if err_status != GNET_SNMP_PDU_ERR_NOERROR {
es := C.get_err_label(session.error_status)
err_string := C.GoString((*_Ctype_char)(es))
return out, fmt.Errorf("%s: %s for uri %d", libname(), err_string, session.error_index)
}
}
// results
return out, nil
}