本文整理汇总了Golang中github.com/coreos/rkt/store.Store.HashToKey方法的典型用法代码示例。如果您正苦于以下问题:Golang Store.HashToKey方法的具体用法?Golang Store.HashToKey怎么用?Golang Store.HashToKey使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/coreos/rkt/store.Store
的用法示例。
在下文中一共展示了Store.HashToKey方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: getTmpROC
// getTmpROC returns a removeOnClose instance wrapping a temporary
// file provided by the passed store. The actual file name is based on
// a hash of the passed path.
func getTmpROC(s *store.Store, path string) (*removeOnClose, error) {
h := sha512.New()
h.Write([]byte(path))
pathHash := s.HashToKey(h)
tmp, err := s.TmpNamedFile(pathHash)
if err != nil {
return nil, errwrap.Wrap(errors.New("error setting up temporary file"), err)
}
// let's lock the file to avoid concurrent writes to the temporary file, it
// will go away when removing the temp file
_, err = lock.TryExclusiveLock(tmp.Name(), lock.RegFile)
if err != nil {
if err != lock.ErrLocked {
return nil, errwrap.Wrap(errors.New("failed to lock temporary file"), err)
}
log.Printf("another rkt instance is downloading this file, waiting...")
_, err = lock.ExclusiveLock(tmp.Name(), lock.RegFile)
if err != nil {
return nil, errwrap.Wrap(errors.New("failed to lock temporary file"), err)
}
}
roc := &removeOnClose{File: tmp}
return roc, nil
}
示例2: getTmpROC
// getTmpROC returns a removeOnClose instance wrapping a temporary
// file provided by the passed store. The actual file name is based on
// a hash of the passed path.
func getTmpROC(s *store.Store, path string) (*removeOnClose, error) {
h := sha512.New()
h.Write([]byte(path))
pathHash := s.HashToKey(h)
tmp, err := s.TmpNamedFile(pathHash)
if err != nil {
return nil, errwrap.Wrap(errors.New("error setting up temporary file"), err)
}
roc := &removeOnClose{File: tmp}
return roc, nil
}