mirror of
https://github.com/status-im/go-waku.git
synced 2025-01-19 18:20:03 +00:00
b5be83a02e
* fix: using relay without bcaster should consume and drop messages * update relay api usage * move subscription to broadcaster * move filter logic under subscription * Support more than 1 relay subscription for a pubSubTopic * modify relay Publish API to derive pubSubTopic based on autosharding * implement relay RPC methods for autosharding * remove relay msgChannel and relay on pubsub buffersize for subscription Co-authored-by: richΛrd <info@richardramos.me> * handle relay subscribe with noConsumer and address issue reported in code review * chore: reorg relay code --------- Co-authored-by: richΛrd <info@richardramos.me>
58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
package relay
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/waku-org/go-waku/waku/v2/protocol"
|
|
"golang.org/x/exp/slices"
|
|
)
|
|
|
|
// Subscription handles the details of a particular Topic subscription. There may be many subscriptions for a given topic.
|
|
type Subscription struct {
|
|
ID int
|
|
Unsubscribe func() //for internal use only. For relay Subscription use relay protocol's unsubscribe
|
|
Ch chan *protocol.Envelope
|
|
contentFilter protocol.ContentFilter
|
|
subType SubscriptionType
|
|
noConsume bool
|
|
}
|
|
|
|
type SubscriptionType int
|
|
|
|
const (
|
|
SpecificContentTopics SubscriptionType = iota
|
|
AllContentTopics
|
|
)
|
|
|
|
// Submit allows a message to be submitted for a subscription
|
|
func (s *Subscription) Submit(ctx context.Context, msg *protocol.Envelope) {
|
|
//Filter and notify
|
|
// - if contentFilter doesn't have a contentTopic
|
|
// - if contentFilter has contentTopics and it matches with message
|
|
if !s.noConsume && (len(s.contentFilter.ContentTopicsList()) == 0 ||
|
|
(len(s.contentFilter.ContentTopicsList()) > 0 && slices.Contains[string](s.contentFilter.ContentTopicsList(), msg.Message().ContentTopic))) {
|
|
select {
|
|
case <-ctx.Done():
|
|
return
|
|
case s.Ch <- msg:
|
|
}
|
|
}
|
|
}
|
|
|
|
// NewSubscription creates a subscription that will only receive messages based on the contentFilter
|
|
func NewSubscription(contentFilter protocol.ContentFilter) *Subscription {
|
|
ch := make(chan *protocol.Envelope)
|
|
var subType SubscriptionType
|
|
if len(contentFilter.ContentTopicsList()) == 0 {
|
|
subType = AllContentTopics
|
|
}
|
|
return &Subscription{
|
|
Unsubscribe: func() {
|
|
close(ch)
|
|
},
|
|
Ch: ch,
|
|
contentFilter: contentFilter,
|
|
subType: subType,
|
|
}
|
|
}
|