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https://github.com/aljazceru/kata-containers.git
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1d291fc105
It tracks all existing pods in the current runtime. If the runtime calls multiple APIs, it can reuse existing pod data structure instead of re-construct it in every API call. Signed-off-by: Peng Tao <bergwolf@gmail.com>
61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
//
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// Copyright (c) 2018 HyperHQ 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 virtcontainers
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import (
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"fmt"
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"sync"
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)
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type podList struct {
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lock sync.RWMutex
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pods map[string]*Pod
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}
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// globalPodList tracks pods globally
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var globalPodList = &podList{pods: make(map[string]*Pod)}
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func (p *podList) addPod(pod *Pod) (err error) {
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if pod == nil {
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return nil
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}
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p.lock.Lock()
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defer p.lock.Unlock()
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if p.pods[pod.id] == nil {
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p.pods[pod.id] = pod
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} else {
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err = fmt.Errorf("pod %s exists", pod.id)
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}
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return err
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}
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func (p *podList) removePod(id string) {
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p.lock.Lock()
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defer p.lock.Unlock()
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delete(p.pods, id)
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}
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func (p *podList) lookupPod(id string) (*Pod, error) {
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p.lock.RLock()
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defer p.lock.RUnlock()
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if p.pods[id] != nil {
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return p.pods[id], nil
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}
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return nil, fmt.Errorf("pod %s does not exist", id)
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}
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