kubernetes: k8s.io/kubernetes/pkg/scheduler/util Index | Files

package util

import "k8s.io/kubernetes/pkg/scheduler/util"

Index

Package Files

clock.go error_channel.go heap.go utils.go

func GetContainerPorts Uses

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func GetContainerPorts(pods ...*v1.Pod) []*v1.ContainerPort

GetContainerPorts returns the used host ports of Pods: if 'port' was used, a 'port:true' pair will be in the result; but it does not resolve port conflict.

func GetEarliestPodStartTime Uses

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func GetEarliestPodStartTime(victims *api.Victims) *metav1.Time

GetEarliestPodStartTime returns the earliest start time of all pods that have the highest priority among all victims.

func GetPodFullName Uses

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func GetPodFullName(pod *v1.Pod) string

GetPodFullName returns a name that uniquely identifies a pod.

func GetPodPriority Uses

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func GetPodPriority(pod *v1.Pod) int32

GetPodPriority returns priority of the given pod.

func GetPodStartTime Uses

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func GetPodStartTime(pod *v1.Pod) *metav1.Time

GetPodStartTime returns start time of the given pod.

func MoreImportantPod Uses

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func MoreImportantPod(pod1, pod2 interface{}) bool

MoreImportantPod return true when priority of the first pod is higher than the second one. If two pods' priorities are equal, compare their StartTime. It takes arguments of the type "interface{}" to be used with SortableList, but expects those arguments to be *v1.Pod.

type Clock Uses

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type Clock interface {
    Now() time.Time
}

Clock provides an interface for getting the current time

type ErrorChannel Uses

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type ErrorChannel struct {
    // contains filtered or unexported fields
}

ErrorChannel supports non-blocking send and receive operation to capture error. A maximum of one error is kept in the channel and the rest of the errors sent are ignored, unless the existing error is received and the channel becomes empty again.

func NewErrorChannel Uses

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func NewErrorChannel() *ErrorChannel

NewErrorChannel returns a new ErrorChannel.

func (*ErrorChannel) ReceiveError Uses

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func (e *ErrorChannel) ReceiveError() error

ReceiveError receives an error from channel without blocking on the receiver.

func (*ErrorChannel) SendError Uses

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func (e *ErrorChannel) SendError(err error)

SendError sends an error without blocking the sender.

func (*ErrorChannel) SendErrorWithCancel Uses

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func (e *ErrorChannel) SendErrorWithCancel(err error, cancel context.CancelFunc)

SendErrorWithCancel sends an error without blocking the sender and calls cancel function.

type Heap Uses

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type Heap struct {
    // contains filtered or unexported fields
}

Heap is a producer/consumer queue that implements a heap data structure. It can be used to implement priority queues and similar data structures.

func NewHeap Uses

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func NewHeap(keyFn KeyFunc, lessFn LessFunc) *Heap

NewHeap returns a Heap which can be used to queue up items to process.

func NewHeapWithRecorder Uses

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func NewHeapWithRecorder(keyFn KeyFunc, lessFn LessFunc, metricRecorder metrics.MetricRecorder) *Heap

NewHeapWithRecorder wraps an optional metricRecorder to compose a Heap object.

func (*Heap) Add Uses

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func (h *Heap) Add(obj interface{}) error

Add inserts an item, and puts it in the queue. The item is updated if it already exists.

func (*Heap) AddIfNotPresent Uses

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func (h *Heap) AddIfNotPresent(obj interface{}) error

AddIfNotPresent inserts an item, and puts it in the queue. If an item with the key is present in the map, no changes is made to the item.

func (*Heap) Delete Uses

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func (h *Heap) Delete(obj interface{}) error

Delete removes an item.

func (*Heap) Get Uses

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func (h *Heap) Get(obj interface{}) (interface{}, bool, error)

Get returns the requested item, or sets exists=false.

func (*Heap) GetByKey Uses

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func (h *Heap) GetByKey(key string) (interface{}, bool, error)

GetByKey returns the requested item, or sets exists=false.

func (*Heap) Len Uses

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func (h *Heap) Len() int

Len returns the number of items in the heap.

func (*Heap) List Uses

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func (h *Heap) List() []interface{}

List returns a list of all the items.

func (*Heap) Peek Uses

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func (h *Heap) Peek() interface{}

Peek returns the head of the heap without removing it.

func (*Heap) Pop Uses

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func (h *Heap) Pop() (interface{}, error)

Pop returns the head of the heap and removes it.

func (*Heap) Update Uses

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func (h *Heap) Update(obj interface{}) error

Update is the same as Add in this implementation. When the item does not exist, it is added.

type KeyFunc Uses

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type KeyFunc func(obj interface{}) (string, error)

KeyFunc is a function type to get the key from an object.

type LessFunc Uses

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type LessFunc func(item1, item2 interface{}) bool

LessFunc is a function that receives two items and returns true if the first item should be placed before the second one when the list is sorted.

type RealClock Uses

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type RealClock struct{}

RealClock implements a clock using time

func (RealClock) Now Uses

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func (RealClock) Now() time.Time

Now returns the current time with time.Now

type SortableList Uses

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type SortableList struct {
    Items    []interface{}
    CompFunc LessFunc
}

SortableList is a list that implements sort.Interface.

func (*SortableList) Len Uses

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func (l *SortableList) Len() int

func (*SortableList) Less Uses

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func (l *SortableList) Less(i, j int) bool

func (*SortableList) Sort Uses

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func (l *SortableList) Sort()

Sort sorts the items in the list using the given CompFunc. Item1 is placed before Item2 when CompFunc(Item1, Item2) returns true.

func (*SortableList) Swap Uses

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func (l *SortableList) Swap(i, j int)

Package util imports 12 packages (graph) and is imported by 83 packages. Updated 2019-08-02. Refresh now. Tools for package owners.