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lock.go
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lock.go
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// Copyright 2016 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package fileutil
type Lock interface {
// Name returns the name of the file.
Name() string
// TryLock acquires exclusivity on the lock without blocking.
TryLock() error
// Lock acquires exclusivity on the lock.
Lock() error
// Unlock unlocks the lock.
Unlock() error
// Destroy should be called after Unlock to clean up
// the resources.
Destroy() error
}