nodece commented on code in PR #1494:
URL: https://github.com/apache/pulsar-client-go/pull/1494#discussion_r3231562006
##########
pulsar/consumer_impl.go:
##########
@@ -781,15 +773,22 @@ func (c *consumer) SeekByTime(time time.Time) error {
return errs
}
-func (c *consumer) checkMsgIDPartition(msgID MessageID) error {
+func (c *consumer) findPartitionConsumer(msgID MessageID) (*partitionConsumer,
error) {
+ c.Lock()
+ defer c.Unlock()
+ return c.unsafeFindPartitionConsumer(msgID)
+}
+
+// NOTE: This method must be called when c.Lock is held
+func (c *consumer) unsafeFindPartitionConsumer(msgID MessageID)
(*partitionConsumer, error) {
partition := msgID.PartitionIdx()
if partition < 0 || int(partition) >= len(c.consumers) {
c.log.Errorf("invalid partition index %d expected a partition
between [0-%d]",
partition, len(c.consumers))
- return fmt.Errorf("invalid partition index %d expected a
partition between [0-%d]",
+ return nil, fmt.Errorf("invalid partition index %d expected a
partition between [0-%d]",
partition, len(c.consumers))
}
- return nil
+ return c.consumers[msgID.PartitionIdx()], nil
Review Comment:
I'm concerned that `c.consumers[msgID.PartitionIdx()]` could be `nil`.
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