-
Notifications
You must be signed in to change notification settings - Fork 39.2k
/
state_mem.go
117 lines (91 loc) · 2.89 KB
/
state_mem.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package state
import (
"sync"
"k8s.io/klog/v2"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
)
type stateMemory struct {
sync.RWMutex
assignments ContainerCPUAssignments
defaultCPUSet cpuset.CPUSet
}
var _ State = &stateMemory{}
// NewMemoryState creates new State for keeping track of cpu/pod assignment
func NewMemoryState() State {
klog.InfoS("Initialized new in-memory state store")
return &stateMemory{
assignments: ContainerCPUAssignments{},
defaultCPUSet: cpuset.NewCPUSet(),
}
}
func (s *stateMemory) GetCPUSet(podUID string, containerName string) (cpuset.CPUSet, bool) {
s.RLock()
defer s.RUnlock()
res, ok := s.assignments[podUID][containerName]
return res.Clone(), ok
}
func (s *stateMemory) GetDefaultCPUSet() cpuset.CPUSet {
s.RLock()
defer s.RUnlock()
return s.defaultCPUSet.Clone()
}
func (s *stateMemory) GetCPUSetOrDefault(podUID string, containerName string) cpuset.CPUSet {
if res, ok := s.GetCPUSet(podUID, containerName); ok {
return res
}
return s.GetDefaultCPUSet()
}
func (s *stateMemory) GetCPUAssignments() ContainerCPUAssignments {
s.RLock()
defer s.RUnlock()
return s.assignments.Clone()
}
func (s *stateMemory) SetCPUSet(podUID string, containerName string, cset cpuset.CPUSet) {
s.Lock()
defer s.Unlock()
if _, ok := s.assignments[podUID]; !ok {
s.assignments[podUID] = make(map[string]cpuset.CPUSet)
}
s.assignments[podUID][containerName] = cset
klog.InfoS("Updated desired CPUSet", "podUID", podUID, "containerName", containerName, "cpuSet", cset)
}
func (s *stateMemory) SetDefaultCPUSet(cset cpuset.CPUSet) {
s.Lock()
defer s.Unlock()
s.defaultCPUSet = cset
klog.InfoS("Updated default CPUSet", "cpuSet", cset)
}
func (s *stateMemory) SetCPUAssignments(a ContainerCPUAssignments) {
s.Lock()
defer s.Unlock()
s.assignments = a.Clone()
klog.InfoS("Updated CPUSet assignments", "assignments", a)
}
func (s *stateMemory) Delete(podUID string, containerName string) {
s.Lock()
defer s.Unlock()
delete(s.assignments[podUID], containerName)
if len(s.assignments[podUID]) == 0 {
delete(s.assignments, podUID)
}
klog.V(2).InfoS("Deleted CPUSet assignment", "podUID", podUID, "containerName", containerName)
}
func (s *stateMemory) ClearState() {
s.Lock()
defer s.Unlock()
s.defaultCPUSet = cpuset.CPUSet{}
s.assignments = make(ContainerCPUAssignments)
klog.V(2).InfoS("Cleared state")
}