// NotifyBlockConnected creates and marshalls a JSON message to notify
// of a new block connected to the main chain. The notification is sent
// to each connected wallet.
func (s *rpcServer) NotifyBlockConnected(block *btcutil.Block) {
hash, err := block.Sha()
if err != nil {
rpcsLog.Error("Bad block; connected block notification dropped.")
return
}
// TODO: remove int32 type conversion.
ntfn := btcws.NewBlockConnectedNtfn(hash.String(),
int32(block.Height()))
mntfn, _ := json.Marshal(ntfn)
s.ws.walletNotificationMaster <- mntfn
// Inform any interested parties about txs mined in this block.
s.ws.Lock()
for _, tx := range block.Transactions() {
if clist, ok := s.ws.minedTxNotifications[*tx.Sha()]; ok {
var enext *list.Element
for e := clist.Front(); e != nil; e = enext {
enext = e.Next()
c := e.Value.(walletChan)
// TODO: remove int32 type conversion after
// the int64 -> int32 switch is made.
ntfn := btcws.NewTxMinedNtfn(tx.Sha().String(),
hash.String(), int32(block.Height()),
block.MsgBlock().Header.Timestamp.Unix(),
tx.Index())
mntfn, _ := json.Marshal(ntfn)
c <- mntfn
s.ws.removeMinedTxRequest(c, tx.Sha())
}
}
}
s.ws.Unlock()
}
// NotifyMinedTxSender reads received transactions from in, notifying
// frontends that the tx has now been confirmed in a block. Duplicates
// are filtered out.
func NotifyMinedTxSender(in chan *tx.RecvTx) {
// Create a map to hold a set of already notified
// txids. Do not send duplicates.
m := make(map[btcwire.ShaHash]struct{})
for recv := range in {
if _, ok := m[recv.TxID]; !ok {
ntfn := btcws.NewTxMinedNtfn(recv.TxID.String(),
recv.BlockHash.String(), recv.BlockHeight,
recv.BlockTime, int(recv.BlockIndex))
mntfn, _ := ntfn.MarshalJSON()
frontendNotificationMaster <- mntfn
// Mark as sent.
m[recv.TxID] = struct{}{}
}
}
}
TxID: "851f5c0652e785c5ed80aafaf2d918e5cbe5c307dbba3680808ada1d01f36886",
TxOutIndex: 1,
PkScript: "76a9141e127eda7cd71b9724085f588840a3e9d697ae9888ac",
BlockHash: "000000004811dda1c320ad5d0ea184a20a53acd92292c5f1cb926c3ee82abf70",
BlockHeight: 153469,
BlockIndex: 1,
BlockTime: 1386944019,
Spent: true,
},
},
{
name: "txmined",
f: func() btcjson.Cmd {
return btcws.NewTxMinedNtfn(
"062f2b5f7d28c787e0f3aee382132241cd590efb7b83bd2c7f506de5aa4ef275",
"000000004811dda1c320ad5d0ea184a20a53acd92292c5f1cb926c3ee82abf70",
153469,
1386944019,
0)
},
result: &btcws.TxMinedNtfn{
TxID: "062f2b5f7d28c787e0f3aee382132241cd590efb7b83bd2c7f506de5aa4ef275",
BlockHash: "000000004811dda1c320ad5d0ea184a20a53acd92292c5f1cb926c3ee82abf70",
BlockHeight: 153469,
BlockTime: 1386944019,
Index: 0,
},
},
{
name: "txspent",
f: func() btcjson.Cmd {
return btcws.NewTxSpentNtfn(