func (bs *BalancingService) initLVS() error {
res := C.init_ipvs()
if res != 0 {
error_text := C.GoString(C.ipvs_error())
return errors.New(error_text)
}
res = C.ipvs_flush()
if res != 0 {
error_text := C.GoString(C.ipvs_error())
return errors.New(error_text)
}
return nil
}
func (bs *BalancingService) DropService() error {
res := C.remove_service(bs.LvsService)
if res != 0 {
error_text := C.GoString(C.ipvs_error())
return errors.New(error_text)
}
return nil
}
func (bs *BalancingService) CreateService() error {
bs.LvsService = C.create_service(C.CString(bs.Address.IP), C.int(bs.Address.Port), C.CString(bs.Algorithm))
res := C.add_service(bs.LvsService)
if res != 0 {
error_text := C.GoString(C.ipvs_error())
return errors.New(error_text)
}
return nil
}
func (bs *BalancingService) DeleteDestination(addrs ...Address) error {
var dst unsafe.Pointer
for _, d := range addrs {
// Checking we have this address or not
for i, d2 := range bs.destinations {
if d2.IsEqual(d) {
dst = C.create_dest(C.CString(d.IP), C.int(d.Port))
res := C.remove_dest(bs.LvsService, dst)
if res != 0 {
error_text := C.GoString(C.ipvs_error())
return errors.New(error_text)
}
bs.destinations = append(bs.destinations[:i], bs.destinations[i+1:]...)
}
}
}
return nil
}
func (bs *BalancingService) AddDestination(addrs ...Address) error {
var dst unsafe.Pointer
for _, d := range addrs {
// Checking we have this address or not
for _, d2 := range bs.destinations {
if d2.IsEqual(d) {
// If there is Address that we already added just exiting from this function without error
return nil
}
}
dst = C.create_dest(C.CString(d.IP), C.int(d.Port))
res := C.add_dest(bs.LvsService, dst)
if res != 0 {
error_text := C.GoString(C.ipvs_error())
return errors.New(error_text)
}
bs.destinations = append(bs.destinations, d)
}
return nil
}