ipld-eth-server/cmd/get_logs/main.go
Matt K 6decf0b54b Remove pubsub and replace w/ polling head of chain (#122)
* Rename geth package structs to not be prefaced with package name

* No longer need to dump schema since Travis uses migrate

* Rearrange history package

* Removed double request for receipt from block rewards

* Remove Listener + Observers and Replace w/ Polling Head

* Potential Short term Issue w/ Infura (ignore these tests for now)
2018-01-05 11:55:00 -06:00

72 lines
1.6 KiB
Go

package main
import (
"log"
"flag"
"math/big"
"time"
"github.com/8thlight/vulcanizedb/cmd"
"github.com/8thlight/vulcanizedb/pkg/core"
"github.com/8thlight/vulcanizedb/pkg/geth"
)
func min(a, b int64) int64 {
if a < b {
return a
}
return b
}
const (
windowSize = 24
pollingInterval = 10 * time.Second
)
func main() {
environment := flag.String("environment", "", "Environment name")
contractHash := flag.String("contract-hash", "", "Contract hash to show summary")
ticker := time.NewTicker(pollingInterval)
defer ticker.Stop()
flag.Parse()
config := cmd.LoadConfig(*environment)
blockchain := geth.NewBlockchain(config.Client.IPCPath)
repository := cmd.LoadPostgres(config.Database, blockchain.Node())
lastBlockNumber := blockchain.LastBlock().Int64()
stepSize := int64(1000)
go func() {
for i := int64(0); i < lastBlockNumber; i = min(i+stepSize, lastBlockNumber) {
logs, err := blockchain.GetLogs(core.Contract{Hash: *contractHash}, big.NewInt(i), big.NewInt(i+stepSize))
log.Println("Backfilling Logs:", i)
if err != nil {
log.Println(err)
}
repository.CreateLogs(logs)
}
}()
done := make(chan struct{})
go func() { done <- struct{}{} }()
for range ticker.C {
select {
case <-done:
go func() {
z := &big.Int{}
z.Sub(blockchain.LastBlock(), big.NewInt(25))
log.Printf("Logs Window: %d - %d", z.Int64(), blockchain.LastBlock().Int64())
logs, _ := blockchain.GetLogs(core.Contract{Hash: *contractHash}, z, blockchain.LastBlock())
repository.CreateLogs(logs)
done <- struct{}{}
}()
default:
}
}
}