// initLog initializes an event logger. It registers the source name with
// the registry if it does not already exist.
func initLog(provider, source, msgFile string) (*elog.Log, error) {
// Install entry to registry:
_, err := elog.Install(providerName, sourceName, msgFile, true, allLevels)
if err != nil {
return nil, err
}
// Open a new logger for writing events:
log, err := elog.Open(sourceName)
if err != nil {
var errs multierror.Errors
errs = append(errs, err)
err := elog.RemoveSource(providerName, sourceName)
if err != nil {
errs = append(errs, err)
}
err = elog.RemoveProvider(providerName)
if err != nil {
errs = append(errs, err)
}
return nil, errs.Err()
}
return log, nil
}
// uninstallLog unregisters the event logger from the registry and closes the
// log's handle if it is open.
func uninstallLog(provider, source string, log *elog.Log) error {
var errs multierror.Errors
if log != nil {
err := clearEventLog(Handle(log.Handle), "")
if err != nil {
errs = append(errs, err)
}
err = log.Close()
if err != nil {
errs = append(errs, err)
}
}
err := elog.RemoveSource(providerName, sourceName)
if err != nil {
errs = append(errs, err)
}
err = elog.RemoveProvider(providerName)
if err != nil {
errs = append(errs, err)
}
return errs.Err()
}