youtubebeat/vendor/github.com/elastic/beats/metricbeat/module/system/socket/hashset.go

41 lines
1.2 KiB
Go

// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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 socket
// hashSet is a simple set built upon a map.
type hashSet map[uint64]struct{}
// Add adds a value to the set.
func (s hashSet) Add(hash uint64) {
s[hash] = struct{}{}
}
// Contains return true if the value is in the set.
func (s hashSet) Contains(hash uint64) bool {
_, exists := s[hash]
return exists
}
// Reset resets the contents of the set to empty and returns itself.
func (s hashSet) Reset() hashSet {
for k := range s {
delete(s, k)
}
return s
}