// keyFunc returns the key of an object, which is used to look up in the cache for it's matching object.
// Since we match objects by namespace and Labels/Selector, so if two objects have the same namespace and labels,
// they will have the same key.
func keyFunc(obj objectWithMeta) uint64 {
hash := adler32.New()
hashutil.DeepHashObject(hash, &equivalenceLabelObj{
namespace: obj.GetNamespace(),
labels: obj.GetLabels(),
})
return uint64(hash.Sum32())
}
func hashAddresses(addrs addressSet) string {
// Flatten the list of addresses into a string so it can be used as a
// map key. Unfortunately, DeepHashObject is implemented in terms of
// spew, and spew does not handle non-primitive map keys well. So
// first we collapse it into a slice, sort the slice, then hash that.
slice := make([]addrReady, 0, len(addrs))
for k, ready := range addrs {
slice = append(slice, addrReady{k, ready})
}
sort.Sort(addrsReady(slice))
hasher := md5.New()
hashutil.DeepHashObject(hasher, slice)
return hex.EncodeToString(hasher.Sum(nil)[0:])
}
func GetPodTemplateSpecHash(template api.PodTemplateSpec) uint32 {
podTemplateSpecHasher := adler32.New()
hashutil.DeepHashObject(podTemplateSpecHasher, template)
return podTemplateSpecHasher.Sum32()
}
func hashObject(hasher hash.Hash, obj interface{}) []byte {
hashutil.DeepHashObject(hasher, obj)
return hasher.Sum(nil)
}
// HashContainer returns the hash of the container. It is used to compare
// the running container with its desired spec.
func HashContainer(container *api.Container) uint64 {
hash := adler32.New()
hashutil.DeepHashObject(hash, *container)
return uint64(hash.Sum32())
}
