Merge pull request #35 from getamis/feature/detect-no-block-to-generate
container: detect no block to generate
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commit
47563a08da
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@ -52,6 +52,7 @@ const (
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)
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var (
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ErrNoBlock = errors.New("no block generated")
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ErrConsensusTimeout = errors.New("consensus timeout")
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)
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@ -386,25 +387,30 @@ func (eth *ethereum) ConsensusMonitor(errCh chan<- error, quit chan struct{}) {
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}
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defer sub.Unsubscribe()
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timer := time.NewTimer(10 * time.Second)
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blockNumber := uint64(0)
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for {
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latestUpdate := time.Now()
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select {
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case err := <-sub.Err():
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log.Printf("Connection lost: %v", err)
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errCh <- err
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return
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case <-timer.C:
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if blockNumber == 0 {
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errCh <- ErrNoBlock
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} else {
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errCh <- ErrConsensusTimeout
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}
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return
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case head := <-subCh:
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blockNumber = head.Number.Uint64()
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// Ensure that mining is stable.
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if head.Number.Uint64() < 3 {
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continue
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}
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// Block is generated by 2 seconds. We tolerate 1 second delay in consensus.
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if time.Now().Sub(latestUpdate).Seconds() > 3.0 {
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errCh <- ErrConsensusTimeout
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return
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}
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latestUpdate = time.Now()
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timer.Reset(3 * time.Second)
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case <-quit:
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return
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}
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