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package gosteno
import (
type RecordTimestamp float64
func (t RecordTimestamp) MarshalJSON() ([]byte, error) {
return []byte(fmt.Sprintf("%.9f", t)), nil
type Record struct {
Timestamp RecordTimestamp `json:"timestamp"`
Pid int `json:"process_id"`
Source string `json:"source"`
Level LogLevel `json:"log_level"`
Message string `json:"message"`
Data map[string]interface{} `json:"data"`
File string `json:"file,omitempty"`
Line int `json:"line,omitempty"`
Method string `json:"method,omitempty"`
var pid int
func init() {
pid = os.Getpid()
func NewRecord(s string, l LogLevel, m string, d map[string]interface{}) *Record {
r := &Record{
Timestamp: RecordTimestamp(time.Now().UnixNano()) / 1000000000,
Pid: pid,
Source: s,
Level: l,
Message: m,
Data: d,
if getConfig().EnableLOC {
var function *runtime.Func
var file string
var line int
pc := make([]uintptr, 50)
nptrs := runtime.Callers(2, pc)
for i := 0; i < nptrs; i++ {
function = runtime.FuncForPC(pc[i])
file, line = function.FileLine(pc[i])
if !strings.HasSuffix(file, "logger.go") {
r.File = file
r.Line = line
r.Method = function.Name()
return r
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