mudhorn/prometheus
1
0
Fork 0
mirror of https://github.com/prometheus/prometheus.git synced 2024-12-25 21:54:10 -08:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

Use named returns in flock.New.

Browse source
This commit is contained in:
Bjoern Rabenstein 2015-01-19 14:31:16 +01:00
parent baca6faa1c
commit f298af5756
1 changed files with 11 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
storage/local/flock/flock.go
View file

@ -16,22 +16,18 @@ type Releaser interface {
}
// New locks the file with the provided name. If the file does not exist, it is
// created. The returned Releaser is used to release the lock. The returned
// boolean is true if the file to lock already existed. A non-nil error is
// returned if the locking has failed. Neither this function nor the returned
// Releaser is goroutine-safe.
func New(fileName string) (Releaser, bool, error) {
if err := os.MkdirAll(filepath.Dir(fileName), 0755); err != nil {
return nil, false, err
// created. The returned Releaser is used to release the lock. existed is true
// if the file to lock already existed. A non-nil error is returned if the
// locking has failed. Neither this function nor the returned Releaser is
// goroutine-safe.
func New(fileName string) (r Releaser, existed bool, err error) {
if err = os.MkdirAll(filepath.Dir(fileName), 0755); err != nil {
return
}
_, err := os.Stat(fileName)
existed := err == nil
_, err = os.Stat(fileName)
existed = err == nil
lock, err := newLock(fileName)
if err != nil {
return nil, existed, err
}
return lock, existed, nil
r, err = newLock(fileName)
return
}