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Fix infinite looping while waiting for ACK. #42

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Fix infinite looping while waiting for ACK. #42

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15 changes: 12 additions & 3 deletions client/v2/client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -201,13 +201,22 @@ func (c *Client) ReceiveACK() (uint32, error) {
func (c *Client) AwaitACK(count uint32) (uint32, error) {
var ackSeq uint32
var err error
// Create a timer outside the loop
timer := time.NewTimer(c.opts.timeout * time.Duration(count))
defer timer.Stop()

// read until all ACKs
for ackSeq < count {
ackSeq, err = c.ReceiveACK()
if err != nil {
return ackSeq, err
select {
case <-timer.C:
return ackSeq, fmt.Errorf("timeout waiting for ACK (seq=%v, expected=%v)", ackSeq, count)
default:
ackSeq, err = c.ReceiveACK()
if err != nil {
return ackSeq, err
}
}

}

if ackSeq > count {
Expand Down