eth-statediff-service/cmd/serve.go
2023-09-29 03:18:26 +08:00

137 lines
3.7 KiB
Go

// Copyright © 2019 Vulcanize, Inc
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"net/http"
_ "net/http/pprof"
"os"
"os/signal"
"runtime"
"sync"
"github.com/ethereum/go-ethereum/rpc"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
pkg "github.com/cerc-io/eth-statediff-service/pkg"
srpc "github.com/cerc-io/eth-statediff-service/pkg/rpc"
)
// serveCmd represents the serve command
var serveCmd = &cobra.Command{
Use: "serve",
Short: "Stand up a standalone statediffing RPC service on top of LevelDB",
Long: `Usage
./eth-statediff-service serve --config={path to toml config file}`,
Run: func(cmd *cobra.Command, args []string) {
subCommand = cmd.CalledAs()
logWithCommand = *logrus.WithField("SubCommand", subCommand)
serve()
},
}
func init() {
rootCmd.AddCommand(serveCmd)
}
func maxParallelism() int {
maxProcs := runtime.GOMAXPROCS(0)
numCPU := runtime.NumCPU()
if maxProcs < numCPU {
return maxProcs
}
return numCPU
}
func serve() {
logWithCommand.Debug("Running eth-statediff-service serve command")
logWithCommand.Debugf("Parallelism: %d", maxParallelism())
reader, chainConf, nodeInfo := instantiateLevelDBReader()
reportLatestBlock(reader)
service, err := createStateDiffService(reader, chainConf, nodeInfo)
if err != nil {
logWithCommand.Fatal(err)
}
// Enable the pprof agent if configured
if viper.GetBool("debug.pprof") {
// See: https://www.farsightsecurity.com/blog/txt-record/go-remote-profiling-20161028/
// For security reasons: do not use the default http multiplexor elsewhere in this process.
go func() {
logWithCommand.Info("Starting pprof listener on port 6060")
logWithCommand.Fatal(http.ListenAndServe("localhost:6060", nil))
}()
}
// short circuit if we only want to perform prerun
if viper.GetBool("prerun.only") {
parallel := viper.GetBool("prerun.parallel")
if err := service.Run(nil, parallel); err != nil {
logWithCommand.Fatalf("Unable to perform prerun: %v", err)
}
return
}
// start service and servers
var wg sync.WaitGroup
if err := service.Loop(&wg); err != nil {
logWithCommand.Fatalf("unable to start statediff service: %v", err)
}
if err := startServers(service); err != nil {
logWithCommand.Fatal(err)
}
logWithCommand.Debug("RPC servers successfully spun up; awaiting requests")
// clean shutdown
shutdown := make(chan os.Signal)
signal.Notify(shutdown, os.Interrupt)
<-shutdown
logWithCommand.Info("Received interrupt signal, shutting down")
service.Stop()
wg.Wait()
}
func startServers(serv *pkg.Service) error {
ipcPath := viper.GetString("server.ipcPath")
httpPath := viper.GetString("server.httpPath")
if ipcPath == "" && httpPath == "" {
logWithCommand.Fatal("Need an IPC path and/or an HTTP path")
}
if ipcPath != "" {
_, _, err := srpc.StartIPCEndpoint(ipcPath, serv.APIs())
if err != nil {
return err
}
}
if httpPath != "" {
_, err := srpc.StartHTTPEndpoint(httpPath, serv.APIs(), []string{"statediff"}, nil, []string{"*"}, rpc.HTTPTimeouts{})
if err != nil {
return err
}
} else {
logWithCommand.Info("HTTP server is disabled")
}
return nil
}