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Fix XAUTOCLAIM skipping the initial start message. #400

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2 changes: 1 addition & 1 deletion cmd_stream.go
Original file line number Diff line number Diff line change
Expand Up @@ -1536,7 +1536,7 @@ func xautoclaim(
return nextCallId, nil
}

msgs := g.pendingAfter(start)
msgs := g.pendingAfterOrEqual(start)
var res []StreamEntry
for i, p := range msgs {
if minIdleTime > 0 && now.Before(p.lastDelivery.Add(minIdleTime)) {
Expand Down
19 changes: 17 additions & 2 deletions cmd_stream_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -1322,6 +1322,21 @@ func TestStreamAutoClaim(t *testing.T) {
proto.Array(),
),
)

// read again using the ID returned from the last XAUTOCLAIM call as 'start'.
// the results include that starting message. unlike XREADGROUP, the results of XAUTOCLAIM
// are INCLUSIVE of the start ID.
mustDo(t, c,
"XAUTOCLAIM", "planets", "processing", "bob", "15000", "0-2", "COUNT", "1",
proto.Array(
proto.String("0-0"),
proto.Array(
proto.Array(proto.String("0-2"), proto.Strings("name", "Venus")),
),
proto.Array(),
),
)

mustDo(t, c,
"XINFO", "CONSUMERS", "planets", "processing",
proto.Array(
Expand Down Expand Up @@ -1350,8 +1365,8 @@ func TestStreamAutoClaim(t *testing.T) {
proto.Array(
proto.String("0-2"),
proto.String("bob"),
proto.Int(20000),
proto.Int(4),
proto.Int(0),
proto.Int(5),
),
),
)
Expand Down
7 changes: 7 additions & 0 deletions stream.go
Original file line number Diff line number Diff line change
Expand Up @@ -440,6 +440,13 @@ func (s *streamKey) delete(ids []string) (int, error) {
return count, nil
}

func (g *streamGroup) pendingAfterOrEqual(id string) []pendingEntry {
pos := sort.Search(len(g.pending), func(i int) bool {
return streamCmp(id, g.pending[i].id) <= 0
})
return g.pending[pos:]
}

func (g *streamGroup) pendingAfter(id string) []pendingEntry {
pos := sort.Search(len(g.pending), func(i int) bool {
return streamCmp(id, g.pending[i].id) < 0
Expand Down