X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/e4a35f3914481226a2a4ff57618bc486839aa2ea..a68b0ba89ab00dddbc1e59872ed81c08a6113295:/services/ws/session_v0.go

diff --git a/services/ws/session_v0.go b/services/ws/session_v0.go
index 4fbfc489cf..b57abb5cac 100644
--- a/services/ws/session_v0.go
+++ b/services/ws/session_v0.go
@@ -8,6 +8,7 @@ import (
 	"database/sql"
 	"encoding/json"
 	"errors"
+	"reflect"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -86,6 +87,24 @@ func (sess *v0session) Receive(buf []byte) error {
 		sess.mtx.Unlock()
 		sub.sendOldEvents(sess)
 		return nil
+	} else if sub.Method == "unsubscribe" {
+		sess.mtx.Lock()
+		found := false
+		for i, s := range sess.subscriptions {
+			if !reflect.DeepEqual(s.Filters, sub.Filters) {
+				continue
+			}
+			copy(sess.subscriptions[i:], sess.subscriptions[i+1:])
+			sess.subscriptions = sess.subscriptions[:len(sess.subscriptions)-1]
+			found = true
+			break
+		}
+		sess.mtx.Unlock()
+		sess.log.WithField("sub", sub).WithField("found", found).Debug("unsubscribe")
+		if found {
+			sess.sendq <- v0subscribeOK
+			return nil
+		}
 	} else {
 		sess.log.WithField("Method", sub.Method).Info("unknown method")
 	}