do bitmask better, add (COMPLETELY 100% EXPERIMENTAL NOT DONE YET) eventlog support to logger

logging/funcs_winlogger_windows.go

@@ -0,0 +1,238 @@
+package logging
+
+import (
+	`errors`
+)
+
+func (l *WinLogger) Setup() {
+
+	var err error
+
+	/*
+		First a sanity check on the EventIDs.
+		Since we use eventcreate, all Event IDs must be 1 <= eid <= 1000.
+	*/
+	for _, eid := range []uint32{
+		l.eids.Alert,
+		l.eids.Crit,
+		l.eids.Debug,
+		l.eids.Emerg,
+		l.eids.Err,
+		l.eids.Info,
+		l.eids.Notice,
+		l.eids.Warning,
+	} {
+		if !(1 <= eid <= 1000) {
+			err = errors.New("event IDs must be between 1 and 1000 inclusive")
+			panic(err)
+		}
+	}
+
+	if err = eventlog.InstallAsEventCreate(l.Prefix, eventlog.Error|eventlog.Warning|eventlog.Info); err != nil {
+		if idx := ptrnSourceExists.FindStringIndex(err.Error()); idx == nil {
+			// It's an error we want to panic on.
+			panic(err)
+		} else {
+			// It already exists, so ignore the error.
+			err = nil
+		}
+	}
+
+	if l.elog, err = eventlog.Open(l.Prefix); err != nil {
+		panic(err)
+	}
+
+}
+
+func (l *WinLogger) Shutdown() {
+
+	var err error
+
+	if err = l.elog.Close(); err != nil {
+		panic(err)
+	}
+
+	if err = eventlog.Remove(l.Prefix); err != nil {
+		panic(err)
+	}
+
+}
+
+func (l *WinLogger) DoDebug(d bool) {
+
+	l.EnableDebug = d
+
+}
+
+func (l *WinLogger) SetPrefix(prefix string) {
+
+	var err error
+
+	l.Prefix = prefix
+
+	// To properly change the prefix, we need to tear down the old event log and create a new one.
+	if err = l.elog.Close(); err != nil {
+		panic(err)
+	}
+
+	if err = eventlog.Remove(l.Prefix); err != nil {
+		panic(err)
+	}
+
+	if err = eventlog.InstallAsEventCreate(l.Prefix, eventlog.Error|eventlog.Warning|eventlog.Info); err != nil {
+		if idx := ptrnSourceExists.FindStringIndex(err.Error()); idx == nil {
+			// It's an error we want to panic on.
+			panic(err)
+		} else {
+			// It already exists, so ignore the error.
+			err = nil
+		}
+	}
+
+	if l.elog, err = eventlog.Open(l.Prefix); err != nil {
+		panic(err)
+	}
+
+}
+
+func (l *WinLogger) GetPrefix() (prefix string) {
+
+	prefix = l.Prefix
+
+	return
+}
+
+func (l *WinLogger) Alert(s string, v ...interface{}) (err error) {
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	// Treat ALERT as Warning
+	err = l.elog.Warning(l.eids.Alert, msg)
+
+	return
+}
+
+func (l *WinLogger) Crit(s string, v ...interface{}) (err error) {
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	// Treat CRIT as Error
+	err = l.elog.Error(l.eids.Crit, msg)
+
+	return
+}
+
+func (l *WinLogger) Debug(s string, v ...interface{}) (err error) {
+
+	if !l.EnableDebug {
+		return
+	}
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	// Treat DEBUG as Info
+	err = l.elog.Info(l.eids.Debug, msg)
+
+	return
+
+}
+
+func (l *WinLogger) Emerg(s string, v ...interface{}) (err error) {
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	// Treat EMERG as Error
+	err = l.elog.Error(l.eids.Emerg, msg)
+
+	return
+
+}
+
+func (l *WinLogger) Err(s string, v ...interface{}) (err error) {
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	err = l.elog.Error(l.eids.Error, msg)
+
+	return
+
+}
+
+func (l *WinLogger) Info(s string, v ...interface{}) (err error) {
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	err = l.elog.Info(l.eids.Info, msg)
+
+	return
+
+}
+
+func (l *WinLogger) Notice(s string, v ...interface{}) (err error) {
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	// Treat NOTICE as Info
+	err = l.elog.Info(l.eids.Notice, msg)
+
+	return
+
+}
+
+func (l *WinLogger) Warning(s string, v ...interface{}) (err error) {
+
+	var msg string
+
+	if v != nil {
+		msg = fmt.Sprintf(s, v...)
+	} else {
+		msg = s
+	}
+
+	err = l.elog.Warning(l.eids.Warning, msg)
+
+	return
+
+}