f14bf25cb9
this commit avoids lots of tiny allocations, repeated channel creates which are performed when filtering the incoming events, unescaping a key just for matching. also remove deprecated code which is not needed anymore, avoids unexpected data structure transformations from the map to slice.
72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package event
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// TargetIDSet - Set representation of TargetIDs.
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type TargetIDSet map[TargetID]struct{}
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// IsEmpty returns true if the set is empty.
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func (set TargetIDSet) IsEmpty() bool {
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return len(set) != 0
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}
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// Clone - returns copy of this set.
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func (set TargetIDSet) Clone() TargetIDSet {
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setCopy := NewTargetIDSet()
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for k, v := range set {
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setCopy[k] = v
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}
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return setCopy
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}
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// add - adds TargetID to the set.
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func (set TargetIDSet) add(targetID TargetID) {
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set[targetID] = struct{}{}
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}
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// Union - returns union with given set as new set.
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func (set TargetIDSet) Union(sset TargetIDSet) TargetIDSet {
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nset := set.Clone()
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for k := range sset {
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nset.add(k)
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}
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return nset
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}
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// Difference - returns diffrence with given set as new set.
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func (set TargetIDSet) Difference(sset TargetIDSet) TargetIDSet {
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nset := NewTargetIDSet()
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for k := range set {
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if _, ok := sset[k]; !ok {
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nset.add(k)
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}
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}
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return nset
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}
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// NewTargetIDSet - creates new TargetID set with given TargetIDs.
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func NewTargetIDSet(targetIDs ...TargetID) TargetIDSet {
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set := make(TargetIDSet)
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for _, targetID := range targetIDs {
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set.add(targetID)
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}
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return set
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}
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