|
|
package shell
import ( "github.com/seaweedfs/seaweedfs/weed/util" "io" )
func init() { Commands = append(Commands, &commandUnlock{}) Commands = append(Commands, &commandLock{}) }
// =========== Lock ==============
type commandLock struct { }
func (c *commandLock) Name() string { return "lock" }
func (c *commandLock) Help() string { return `lock in order to exclusively manage the cluster
This is a blocking operation if there is already another lock. ` }
func (c *commandLock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
commandEnv.locker.RequestLock(util.DetectedHostAddress())
return nil }
// =========== Unlock ==============
type commandUnlock struct { }
func (c *commandUnlock) Name() string { return "unlock" }
func (c *commandUnlock) Help() string { return `unlock the cluster-wide lock
` }
func (c *commandUnlock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
commandEnv.locker.ReleaseLock()
return nil }
|