add new log level TRACE

daemon/log/log.go

@@ -23,10 +23,11 @@ const (
 	FG_BLACK = "\033[30m"
 	FG_WHITE = "\033[97m"
 
-	BG_DGRAY  = "\033[100m"
+	BG_PURPLE = "\033[45m"
 	BG_RED    = "\033[41m"
 	BG_GREEN  = "\033[42m"
 	BG_YELLOW = "\033[43m"
+	BG_DGRAY  = "\033[100m"
 	BG_LBLUE  = "\033[104m"
 
 	RESET = "\033[0m"
@@ -40,6 +41,8 @@ const (
 	WARNING
 	ERROR
 	FATAL
+
+	TRACE = -1
 )
 
 //
@@ -48,12 +51,13 @@ var (
 	Output     = os.Stdout
 	StdoutFile = "/dev/stdout"
 	DateFormat = "2006-01-02 15:04:05"
-	MinLevel   = INFO
+	MinLevel   = int(INFO)
 	LogUTC     = true
 	LogMicro   = false
 
 	mutex  = &sync.RWMutex{}
 	labels = map[int]string{
+		TRACE:     "TRC",
 		DEBUG:     "DBG",
 		INFO:      "INF",
 		IMPORTANT: "IMP",
@@ -62,6 +66,7 @@ var (
 		FATAL:     "!!!",
 	}
 	colors = map[int]string{
+		TRACE:     FG_WHITE + BG_PURPLE,
 		DEBUG:     DIM + FG_BLACK + BG_DGRAY,
 		INFO:      FG_WHITE + BG_GREEN,
 		IMPORTANT: FG_WHITE + BG_LBLUE,
@@ -163,15 +168,14 @@ func GetLogMicro() bool {
 
 // Log prints out a text with the given color and format
 func Log(level int, format string, args ...interface{}) {
-	mutex.Lock()
-	defer mutex.Unlock()
+	mutex.RLock()
+	defer mutex.RUnlock()
 	if level >= MinLevel {
 		label := labels[level]
 		color := colors[level]
-
 		datefmt := DateFormat
 
-		if LogMicro == true {
+		if LogMicro {
 			datefmt = DateFormat + ".000000"
 		}
 		when := time.Now().UTC().Format(datefmt)
@@ -221,6 +225,11 @@ func Close() {
 	}
 }
 
+// Trace is the log level for tracing purposes
+func Trace(format string, args ...interface{}) {
+	Log(TRACE, format, args...)
+}
+
 // Debug is the log level for debugging purposes
 func Debug(format string, args ...interface{}) {
 	Log(DEBUG, format, args...)