[#149] selector: Add read timeout
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If there are no objects for 10 second, then return nil.
It is required to prevent VU iteration hang if there
are no objects pushed to registry.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
This commit is contained in:
Dmitrii Stepanov 2024-06-24 13:59:12 +03:00
parent e7d4dd404a
commit 335c45c578

View file

@ -9,6 +9,8 @@ import (
"go.etcd.io/bbolt" "go.etcd.io/bbolt"
) )
const nextObjectTimeout = 10 * time.Second
type ObjFilter struct { type ObjFilter struct {
Status string Status string
Age int Age int
@ -57,7 +59,16 @@ func NewObjSelector(registry *ObjRegistry, selectionSize int, kind SelectorKind,
// - underlying registry context is done, nil objects will be returned on the // - underlying registry context is done, nil objects will be returned on the
// currently blocked and every further NextObject calls. // currently blocked and every further NextObject calls.
func (o *ObjSelector) NextObject() *ObjectInfo { func (o *ObjSelector) NextObject() *ObjectInfo {
return <-o.objChan if o.kind == SelectorOneshot {
return <-o.objChan
}
select {
case <-time.After(nextObjectTimeout):
return nil
case obj := <-o.objChan:
return obj
}
} }
// Count returns total number of objects that match filter of the selector. // Count returns total number of objects that match filter of the selector.