func (t *SinceDB) Open(dbdir string) (err error) {
if err = t.Close(); err != nil {
return
}
t.dbdir = dbdir
if !futil.IsExist(t.dbdir) {
if err = os.MkdirAll(t.dbdir, 0755); err != nil {
return
}
}
fis, err := ioutil.ReadDir(t.dbdir)
if err != nil {
return
}
for _, fi := range fis {
if fi.IsDir() {
continue
}
name := fi.Name()
path := filepath.Join(dbdir, fi.Name())
sincefile, err := NewSinceFile(path)
if err != nil {
return err
}
t.SinceMap[name] = sincefile
}
return
}
func (self *InputConfig) LoadSinceDBInfos() (err error) {
var (
raw []byte
)
log.Debug("LoadSinceDBInfos")
self.SinceDBInfos = map[string]*SinceDBInfo{}
if self.SinceDBPath == "" || self.SinceDBPath == "/dev/null" {
log.Warnf("No valid sincedb path")
return
}
if !futil.IsExist(self.SinceDBPath) {
log.Debugf("sincedb not found: %q", self.SinceDBPath)
return
}
if raw, err = ioutil.ReadFile(self.SinceDBPath); err != nil {
log.Errorf("Read sincedb failed: %q\n%s", self.SinceDBPath, err)
return
}
if err = json.Unmarshal(raw, &self.SinceDBInfos); err != nil {
log.Errorf("Unmarshal sincedb failed: %q\n%s", self.SinceDBPath, err)
return
}
return
}
func (t *SinceFile) Open(filepath string) (err error) {
if err = t.Close(); err != nil {
return
}
if !futil.IsExist(filepath) {
if err = ioutil.WriteFile(filepath, make([]byte, 32), 0644); err != nil {
return
}
}
if t.mmfile, err = mmfile.Open(filepath); err != nil {
return
}
t.Since = (*time.Time)(unsafe.Pointer(&t.mmfile.Data()[0]))
return
}