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txs.go
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txs.go
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package collector
import (
"context"
"fmt"
pb "github.com/spacemeshos/api/release/go/spacemesh/v1"
"github.com/spacemeshos/go-spacemesh/log"
"io"
)
func (c *Collector) transactionsPump() error {
lastLayer := c.listener.GetLastLayer(context.Background())
req := pb.TransactionResultsRequest{
Start: lastLayer - 500,
Watch: true,
}
log.Info("Start transactions pump")
defer func() {
c.notify <- -streamType_transactions
log.Info("Stop transactions pump")
}()
c.notify <- +streamType_transactions
stream, err := c.transactionsClient.StreamResults(context.Background(), &req)
if err != nil {
log.Err(fmt.Errorf("cannot get transactions stream results: %v", err))
return err
}
for {
response, err := stream.Recv()
if err == io.EOF {
return err
}
if err != nil {
log.Err(fmt.Errorf("cannot receive transaction result: %v", err))
return err
}
if response == nil {
continue
}
state, err := c.transactionsClient.TransactionsState(context.TODO(), &pb.TransactionsStateRequest{
TransactionId: []*pb.TransactionId{{Id: response.Tx.Id}},
IncludeTransactions: false,
})
if err != nil {
log.Err(fmt.Errorf("cannot receive transaction state: %v", err))
return err
}
if len(state.GetTransactionsState()) > 0 {
c.listener.OnTransactionResult(response, state.GetTransactionsState()[0])
}
}
}