lockers

Documentation

Index

• type FileLock
  • func NewFileLock(fileName string) (FileLock, error)
• type SpinLock
  • func (sl *SpinLock) Lock()
  • func (sl *SpinLock) TryLock() bool
  • func (sl *SpinLock) Unlock()

Types

type FileLock

type FileLock interface {
	// Lock try locking file, return err if fails.
	Lock() error
	// Unlock unlock file lock, if fail return err
	Unlock() error
}

FileLock represents file lock

func NewFileLock

func NewFileLock(fileName string) (FileLock, error)

NewFileLock create new file lock instance

type SpinLock

type SpinLock struct {
	// contains filtered or unexported fields
}

SpinLock implements sync/Locker, default 0 indicates an unlocked spinLock.

func (*SpinLock) Lock

func (sl *SpinLock) Lock()

Lock locks spinLock. If the lock is locked before, the caller will be blocked until unlocked.

func (*SpinLock) TryLock

func (sl *SpinLock) TryLock() bool

TryLock will try to lock spinLock and return whether it succeed or not without blocking.

func (*SpinLock) Unlock

func (sl *SpinLock) Unlock()

Unlock unlocks spinLock, this operation is reentrant。