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resourceprovider: Add comments on possible nil results

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This commit is contained in:
Frederic Branczyk 2018-12-13 15:50:02 -08:00
parent e9ef0bb4d0
commit 7624952870
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1 changed files with 2 additions and 0 deletions
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pkg/resourceprovider/provider.go
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@ -118,6 +118,7 @@ type nsQueryResults struct {
err error
}
// GetContainerMetrics implements the provider.MetricsProvider interface. It may return nil, nil, nil.
func (p *resourceProvider) GetContainerMetrics(pods ...apitypes.NamespacedName) ([]provider.TimeInfo, [][]metrics.ContainerMetrics, error) {
if len(pods) == 0 {
return nil, nil, nil
@ -238,6 +239,7 @@ func (p *resourceProvider) assignForPod(pod apitypes.NamespacedName, resultsByNs
*resMetrics = containerMetricsList
}
// GetNodeMetrics implements the provider.MetricsProvider interface. It may return nil, nil, nil.
func (p *resourceProvider) GetNodeMetrics(nodes ...string) ([]provider.TimeInfo, []corev1.ResourceList, error) {
if len(nodes) == 0 {
return nil, nil, nil