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utils.go
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/
utils.go
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package node
import (
"fmt"
"os"
"os/signal"
"github.com/ethereum/go-ethereum/log"
"github.com/status-im/status-go/geth/common"
)
// HaltOnPanic recovers from panic, logs issue, sends upward notification, and exits
func HaltOnPanic() {
if r := recover(); r != nil {
err := fmt.Errorf("%v: %v", ErrNodeRunFailure, r)
// send signal up to native app
SendSignal(SignalEnvelope{
Type: EventNodeCrashed,
Event: NodeCrashEvent{
Error: err.Error(),
},
})
common.Fatalf(err) // os.exit(1) is called internally
}
}
// HaltOnInterruptSignal stops node and panics if you press Ctrl-C enough times
func HaltOnInterruptSignal(nodeManager *NodeManager) {
sigc := make(chan os.Signal, 1)
signal.Notify(sigc, os.Interrupt)
defer signal.Stop(sigc)
<-sigc
if nodeManager.node == nil {
return
}
log.Info("Got interrupt, shutting down...")
go nodeManager.node.Stop() // nolint: errcheck
for i := 3; i > 0; i-- {
<-sigc
if i > 1 {
log.Info(fmt.Sprintf("Already shutting down, interrupt %d more times for panic.", i-1))
}
}
panic("interrupted!")
}