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options.go
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options.go
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package connection
import (
"errors"
"time"
"github.com/VolantMQ/vlapi/mqttp"
"github.com/VolantMQ/vlapi/vlauth"
"github.com/VolantMQ/vlapi/vlpersistence"
"github.com/VolantMQ/volantmq/metrics"
"github.com/VolantMQ/volantmq/transport"
)
// OnAuthCb ...
type OnAuthCb func(string, *AuthParams) (mqttp.IFace, error)
// Option callback for connection option
type Option func(*impl) error
// SetOptions set connection options
func (s *impl) SetOptions(opts ...Option) error {
for _, opt := range opts {
if err := opt(s); err != nil {
return err
}
}
return nil
}
// OfflineQoS0 if true QoS0 messages will be persisted when session is offline and durable
func OfflineQoS0(val bool) Option {
return func(t *impl) error {
return wrOfflineQoS0(val)(t.tx)
}
}
// KeepAlive keep alive period
func KeepAlive(val int) Option {
return func(t *impl) error {
vl := time.Duration(val+(val/2)) * time.Second
return rdKeepAlive(vl)(t.rx)
}
}
func Metric(val metrics.Packets) Option {
return func(t *impl) error {
t.metric = val
if err := wrMetric(val)(t.tx); err != nil {
return err
}
return rdMetric(val)(t.rx)
}
}
func MaxRxPacketSize(val uint32) Option {
return func(t *impl) error {
return rdMaxPacketSize(val)(t.rx)
}
}
func MaxTxPacketSize(val uint32) Option {
return func(t *impl) error {
return wrMaxPacketSize(val)(t.tx)
}
}
func TxQuota(val int32) Option {
return func(t *impl) error {
return wrQuota(val)(t.tx)
}
}
func RxQuota(val int32) Option {
return func(t *impl) error {
t.rxQuota = val
return nil
}
}
func MaxTxTopicAlias(val uint16) Option {
return func(t *impl) error {
return wrTopicAliasMax(val)(t.tx)
}
}
func MaxRxTopicAlias(val uint16) Option {
return func(t *impl) error {
t.maxRxTopicAlias = val
return nil
}
}
func RetainAvailable(val bool) Option {
return func(t *impl) error {
t.retainAvailable = val
return nil
}
}
func OnAuth(val OnAuthCb) Option {
return func(t *impl) error {
t.signalAuth = val
return nil
}
}
func NetConn(val transport.Conn) Option {
return func(t *impl) error {
if t.conn != nil {
return errors.New("already set")
}
t.conn = val
if err := wrConn(val)(t.tx); err != nil {
return err
}
return rdConn(val)(t.rx)
}
}
func AttachSession(val SessionCallbacks) Option {
return func(t *impl) error {
if t.SessionCallbacks != nil {
return errors.New("already set")
}
t.SessionCallbacks = val
return nil
}
}
func Persistence(val vlpersistence.Packets) Option {
return func(t *impl) error {
return wrPersistence(val)(t.tx)
}
}
func Permissions(val vlauth.Permissions) Option {
return func(t *impl) error {
t.permissions = val
return nil
}
}