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78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 nvidia
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import "k8s.io/apimachinery/pkg/util/sets"
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type containerToGPU map[string]sets.String
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// podGPUs represents a list of pod to GPU mappings.
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type podGPUs struct {
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podGPUMapping map[string]containerToGPU
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}
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func newPodGPUs() *podGPUs {
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return &podGPUs{
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podGPUMapping: make(map[string]containerToGPU),
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}
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}
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func (pgpu *podGPUs) pods() sets.String {
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ret := sets.NewString()
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for k := range pgpu.podGPUMapping {
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ret.Insert(k)
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}
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return ret
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}
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func (pgpu *podGPUs) insert(podUID, contName string, device string) {
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if _, exists := pgpu.podGPUMapping[podUID]; !exists {
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pgpu.podGPUMapping[podUID] = make(containerToGPU)
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}
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if _, exists := pgpu.podGPUMapping[podUID][contName]; !exists {
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pgpu.podGPUMapping[podUID][contName] = sets.NewString()
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}
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pgpu.podGPUMapping[podUID][contName].Insert(device)
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}
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func (pgpu *podGPUs) getGPUs(podUID, contName string) sets.String {
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containers, exists := pgpu.podGPUMapping[podUID]
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if !exists {
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return nil
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}
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devices, exists := containers[contName]
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if !exists {
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return nil
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}
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return devices
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}
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func (pgpu *podGPUs) delete(pods []string) {
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for _, uid := range pods {
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delete(pgpu.podGPUMapping, uid)
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}
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}
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func (pgpu *podGPUs) devices() sets.String {
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ret := sets.NewString()
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for _, containerToGPU := range pgpu.podGPUMapping {
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for _, deviceSet := range containerToGPU {
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ret = ret.Union(deviceSet)
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}
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}
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return ret
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}
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