erigon-pulse/common/debug/log_panic.go

109 lines
2.7 KiB
Go

package debug
import (
"fmt"
"os"
"runtime/debug"
"strings"
"syscall"
"github.com/ledgerwatch/erigon/log"
)
var sigc chan os.Signal
func GetSigC(sig *chan os.Signal) {
sigc = *sig
}
/*
var crashReportDir string
func prettyTime() string {
time := fmt.Sprintf("%v", time.Now())
return strings.Replace(time[:19], " ", "-", 1)
}
func CheckForCrashes(datadir string) {
crashReportDir = filepath.Join(datadir, "crashreports")
if _, err := os.Stat(crashReportDir); err != nil && os.IsNotExist(err) {
_ = os.MkdirAll(crashReportDir, 0755)
} else if err != nil {
log.Error("log_panic.go: CheckForCrashes", "error", err)
return
}
f, err := os.Open(crashReportDir)
if err != nil {
log.Error("log_panic.go: CheckForCrashes", "error", err)
return
}
fileInfo, err := f.ReadDir(-1)
if err != nil {
log.Error("log_panic.go: CheckForCrashes", "error", err)
return
}
for _, v := range fileInfo {
if !v.IsDir() {
msg := fmt.Sprintf("Crashes From Previous Boots Detected. Find the stack trace in %v",
crashReportDir)
log.Warn(msg)
_ = f.Close()
return
}
}
}
*/
var panicReplacer = strings.NewReplacer("\n", " ", "\t", "", "\r", "")
// LogPanic - does log panic to logger and to <datadir>/crashreports then stops the process
func LogPanic() {
panicResult := recover()
if panicResult == nil {
return
}
stack := string(debug.Stack())
log.Error("catch panic", "err", panicResult, "stack", panicReplacer.Replace(stack))
//WriteStackTraceOnPanic(stack)
if sigc != nil {
sigc <- syscall.SIGINT
}
}
// ReportPanicAndRecover - does save panic to datadir/crashreports, bud doesn't log to logger and doesn't stop the process
// it returns recovered panic as error in format friendly for our logger
// common pattern of use - assign to named output param:
// func A() (err error) {
// defer func() { err = debug.ReportPanicAndRecover() }() // avoid crash because Erigon's core does many things
// }
func ReportPanicAndRecover() (err error) {
panicResult := recover()
if panicResult == nil {
return nil
}
stack := string(debug.Stack())
switch typed := panicResult.(type) {
case error:
err = fmt.Errorf("%w, trace: %s", typed, panicReplacer.Replace(stack))
default:
err = fmt.Errorf("%+v, trace: %s", typed, panicReplacer.Replace(stack))
}
//log.Error("panic", "err", panicResult, "stack", panicReplacer.Replace(stack))
//WriteStackTraceOnPanic(stack)
return err
}
/*
func WriteStackTraceOnPanic(stack string) {
fileName := filepath.Join(crashReportDir, prettyTime()+".txt")
f, errFs := os.OpenFile(fileName, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
if errFs != nil {
log.Error("log_panic.go:WriteStackTraceOnPanic", "error", errFs)
f.Close()
return
}
f.WriteString(stack)
f.Sync()
f.Close()
}
*/