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mirror of https://github.com/kubernetes-sigs/descheduler.git synced 2026-01-26 21:31:18 +01:00
Files
descheduler/vendor/github.com/docker/distribution/context/util.go
2019-10-12 11:11:43 -04:00

26 lines
716 B
Go

package context
import (
"context"
"time"
)
// Since looks up key, which should be a time.Time, and returns the duration
// since that time. If the key is not found, the value returned will be zero.
// This is helpful when inferring metrics related to context execution times.
func Since(ctx context.Context, key interface{}) time.Duration {
if startedAt, ok := ctx.Value(key).(time.Time); ok {
return time.Since(startedAt)
}
return 0
}
// GetStringValue returns a string value from the context. The empty string
// will be returned if not found.
func GetStringValue(ctx context.Context, key interface{}) (value string) {
if valuev, ok := ctx.Value(key).(string); ok {
value = valuev
}
return value
}