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chainntnfs/txconfnotifier: use concrete ErrTxConfNotifierExiting error

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This commit is contained in:
Wilmer Paulino 2018-07-26 21:27:27 -07:00
parent c48ecb85f6
commit ad904ebe8c
1 changed files with 13 additions and 6 deletions
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19
chainntnfs/txconfnotifier.go
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@ -8,6 +8,12 @@ import (
"github.com/btcsuite/btcutil"
)
var (
// ErrTxConfNotifierExiting is an error returned when attempting to
// interact with the TxConfNotifier but it been shut down.
ErrTxConfNotifierExiting = errors.New("TxConfNotifier is exiting")
)
// ConfNtfn represents a notifier client's request to receive a notification
// once the target transaction gets sufficient confirmations. The client is
// asynchronously notified via the ConfirmationEvent channels.
@ -185,7 +191,7 @@ func (tcn *TxConfNotifier) ConnectTip(blockHash *chainhash.Hash,
select {
case <-tcn.quit:
return fmt.Errorf("TxConfNotifier is exiting")
return ErrTxConfNotifierExiting
default:
}
@ -256,7 +262,7 @@ func (tcn *TxConfNotifier) ConnectTip(blockHash *chainhash.Hash,
select {
case ntfn.Event.Updates <- numConfsLeft:
case <-tcn.quit:
return errors.New("TxConfNotifier is exiting")
return ErrTxConfNotifierExiting
}
}
}
@ -267,11 +273,12 @@ func (tcn *TxConfNotifier) ConnectTip(blockHash *chainhash.Hash,
for ntfn := range tcn.ntfnsByConfirmHeight[tcn.currentHeight] {
Log.Infof("Dispatching %v conf notification for %v",
ntfn.NumConfirmations, ntfn.TxID)
select {
case ntfn.Event.Confirmed <- ntfn.details:
ntfn.dispatched = true
case <-tcn.quit:
return fmt.Errorf("TxConfNotifier is exiting")
return ErrTxConfNotifierExiting
}
}
delete(tcn.ntfnsByConfirmHeight, tcn.currentHeight)
@ -321,7 +328,7 @@ func (tcn *TxConfNotifier) DisconnectTip(blockHeight uint32) error {
select {
case <-ntfn.Event.Updates:
case <-tcn.quit:
return errors.New("TxConfNotifier is exiting")
return ErrTxConfNotifierExiting
default:
}
@ -340,7 +347,7 @@ func (tcn *TxConfNotifier) DisconnectTip(blockHeight uint32) error {
select {
case <-ntfn.Event.Confirmed:
case <-tcn.quit:
return errors.New("TxConfNotifier is exiting")
return ErrTxConfNotifierExiting
default:
}
@ -352,7 +359,7 @@ func (tcn *TxConfNotifier) DisconnectTip(blockHeight uint32) error {
select {
case ntfn.Event.NegativeConf <- int32(tcn.reorgDepth):
case <-tcn.quit:
return errors.New("TxConfNotifier is exiting")
return ErrTxConfNotifierExiting
}
continue