package keymutex

import "k8s.io/kubernetes/pkg/util/keymutex"

Index ¶

• type KeyMutex
• func NewHashed(n int) KeyMutex

Types ¶

type KeyMutex ¶

type KeyMutex interface {
	// Acquires a lock associated with the specified ID, creates the lock if one doesn't already exist.
	LockKey(id string)

	// Releases the lock associated with the specified ID.
	// Returns an error if the specified ID doesn't exist.
	UnlockKey(id string) error
}

KeyMutex is a thread-safe interface for acquiring locks on arbitrary strings.

func NewHashed ¶

func NewHashed(n int) KeyMutex

NewHashed returns a new instance of KeyMutex which hashes arbitrary keys to a fixed set of locks. `n` specifies number of locks, if n <= 0, we use number of cpus. Note that because it uses fixed set of locks, different keys may share same lock, so it's possible to wait on same lock.

Source Files ¶

hashed.go keymutex.go