// 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()
}
func TestLog(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode - it modifies system logs")
}
const name = "mylog"
const supports = eventlog.Error | eventlog.Warning | eventlog.Info |
eventlog.Success | eventlog.AuditSuccess | eventlog.AuditFailure
alreadyExists, err := eventlog.InstallAsEventCreate(eventlog.Application, name, supports)
if err != nil {
t.Fatalf("Install failed: %s", err)
}
t.Log("Already exists:", alreadyExists)
defer func() {
err = eventlog.RemoveSource(eventlog.Application, name)
if err != nil {
t.Fatalf("Remove failed: %s", err)
}
}()
l, err := eventlog.Open(name)
if err != nil {
t.Fatalf("Open failed: %s", err)
}
defer l.Close()
err = l.Success(1, "success")
if err != nil {
t.Fatalf("Successo failed: %s", err)
}
err = l.Info(2, "info")
if err != nil {
t.Fatalf("Info failed: %s", err)
}
err = l.Warning(3, "warning")
if err != nil {
t.Fatalf("Warning failed: %s", err)
}
err = l.Error(4, "error")
if err != nil {
t.Fatalf("Error failed: %s", err)
}
err = l.AuditSuccess(5, "audit success")
if err != nil {
t.Fatalf("AuditSuccess failed: %s", err)
}
err = l.AuditFailure(6, "audit failure")
if err != nil {
t.Fatalf("AuditFailure failed: %s", err)
}
}